Thermo Fisher 48iQ Instruction Manual

48iQ Instruction Manual Carbon Monoxide Analyzer 117080-00 • 15Jan2018 Contents Thermo Scientific Chapter 1  Introduction ........................................................................................................ 1-1  iQ Series Instrument Platform............................................................. 1-1  48iQ Principle of Operation ............................................................... 1-3  Specifications ...................................................................................... 1-5  Dimensions ......................................................................................... 1-7  Chapter 2  Installation and Setup ...................................................................................... 2-1  Unpacking and Inspection .................................................................. 2-1  Cover Removing and Replacing .......................................................... 2-2  Mounting Options .............................................................................. 2-3  Bench Mount ................................................................................... 2-3  Rack Mount ..................................................................................... 2-4  Setup Procedure .................................................................................. 2-6  Startup ................................................................................................ 2-8  Chapter 3  Operation ............................................................................................................ 3-1  Instrument Display ............................................................................. 3-1  Main Menus and Keypads ................................................................ 3-5  Numeric Keypad ........................................................................... 3-6  Alphanumeric Keypad ................................................................... 3-7  Calibration .......................................................................................... 3-9  Calibrate Background..................................................................... 3-11  Calibrate Span Coefficient ............................................................. 3-12  Zero/Span Schedule ....................................................................... 3-14  Calibrate O2 Span Coefficient ........................................................ 3-16  Advanced Calibration ..................................................................... 3-17  Manual Calibration ..................................................................... 3-19  Multipoint Calibration................................................................ 3-24  Manual O2 Calibration ............................................................... 3-27  2-Point O2 Calibration ................................................................ 3-29  Calibration History ..................................................................... 3-31  Data .................................................................................................. 3-32  View Data Log (Last Hour)............................................................ 3-33  View Data Log (Last 24 Hours) ..................................................... 3-34  View Data Log (User Defined Time) ............................................. 3-35  Advanced Data Setup ..................................................................... 3-37  Data Logging Setup .................................................................... 3-38  Select Data Logging Variables ..................................................... 3-39  48iQ Instruction Manual iii Contents Streaming Data Setup ................................................................. 3-41  Select Streaming Variables ........................................................... 3-42  Settings ............................................................................................. 3-44  Health Check ................................................................................. 3-45  Status and Alarms........................................................................ 3-46  Concentration ............................................................................. 3-47  NDIR Bench............................................................................... 3-49  O2 Sensor .................................................................................... 3-52  Flow and Pressure ....................................................................... 3-54  Peripherals Support ..................................................................... 3-56  Valve and Pump Resets ............................................................... 3-58  Serial Numbers ........................................................................... 3-63  Predictive Diagnostics ................................................................. 3-64  Maintenance ............................................................................... 3-65  Preventive Maintenance .............................................................. 3-66  Change Part ................................................................................ 3-68  Maintenance History................................................................... 3-69  File Sharing and Support............................................................. 3-71  Measurement Settings .................................................................... 3-72  Averaging Time ........................................................................... 3-74  Range Mode Selection................................................................. 3-76  Range Setting .............................................................................. 3-78  Gas Mode ................................................................................... 3-79  Gas Units .................................................................................... 3-80  Advanced Measurement Settings ................................................. 3-81  Communications ........................................................................... 3-89  Wired TCP/DHCP .................................................................... 3-90  Serial RS-232/485 ....................................................................... 3-92  Analog I/O .................................................................................. 3-93  Digital I/O .................................................................................. 3-94  Email Server (SMTP) .................................................................. 3-95  Instrument Settings ........................................................................ 3-96  Display Setup .............................................................................. 3-97  Alarm Set Points ......................................................................... 3-98  Clock ........................................................................................ 3-100  Date / Time Parameters ............................................................ 3-101  Time Zone ................................................................................ 3-102  Time Server............................................................................... 3-104  Date Format.............................................................................. 3-105  Configuration .............................................................................. 3-106  Security Access Levels ................................................................... 3-107  Change Security to View Only Access ....................................... 3-109  Change Full Access Security Password ....................................... 3-110  USB Drive ................................................................................... 3-112  Firmware Update Via USB Drive .............................................. 3-113  Download Data To USB Drive ................................................. 3-114  iv 48iQ Instruction Manual Thermo Scientific Contents Change USB Password .............................................................. 3-117  User Contact Information ............................................................ 3-119  Update Bootloader ....................................................................... 3-120  Thermo Scientific Chapter 4  Calibration .......................................................................................................... 4-1  Equipment Required ........................................................................... 4-1  CO Concentration Standard ............................................................ 4-1  Zero Air Generator........................................................................... 4-1  External Flow Meter(s) and Controller(s) ......................................... 4-2  Pre-Calibration ................................................................................... 4-2  Calibration .......................................................................................... 4-3  Connect the Instrument ................................................................... 4-3  Detector Gain .................................................................................. 4-4  Initial S/R ........................................................................................ 4-5  Multipoint Calibration..................................................................... 4-6  High and Low Multipoint Calibration ............................................. 4-8  Calibration Frequency ...................................................................... 4-8  Calibrate Background....................................................................... 4-9  Calibrate Span Coefficient ............................................................. 4-10  Periodic Zero and Span Checks ......................................................... 4-12  Manual Calibration ........................................................................... 4-13  Adjust Background......................................................................... 4-13  Adjust Span Coefficient.................................................................. 4-14  Reset Bkg to 0.000 and Span Coef to 1.000 ................................... 4-14  Zero/Span Schedule .......................................................................... 4-15  Next Time ..................................................................................... 4-15  Period ............................................................................................ 4-15  Zero/Span/Purge Duration Minutes .............................................. 4-15  Schedule Averaging Time ............................................................... 4-16  Background Calibration and Span Calibration ............................... 4-16  Zero Calibration and Span Calibration .......................................... 4-16  Zero/Span Ratio ............................................................................. 4-16  References ......................................................................................... 4-16  Chapter 5  Maintenance ...................................................................................................... 5-1  Safety Precautions ............................................................................... 5-1  Fan Filter Inspection and Cleaning ..................................................... 5-1  Pump Rebuilding ................................................................................ 5-2  Leak Test ............................................................................................ 5-5  Cleaning the Optics ............................................................................ 5-6  IR Source Replacement ....................................................................... 5-8  Chapter 6  Troubleshooting ................................................................................................ 6-1  Safety Precautions ............................................................................... 6-1  Troubleshooting Guide ....................................................................... 6-1 48iQ Instruction Manual v Contents vi Chapter 7  Servicing ............................................................................................................. 7-1  Safety Precautions ............................................................................... 7-1  Firmware Updates ............................................................................... 7-3  Replacement Parts List ........................................................................ 7-3  Fuse Replacement ............................................................................... 7-5  Filter Replacement .............................................................................. 7-6  Fan Replacement................................................................................. 7-7  Measurement Side Removal ................................................................ 7-9  LCD Module Replacement ............................................................... 7-12  I/O Replacement ............................................................................... 7-14  Peripherals Support Board and System Controller Board Replacement ..................................................................................... 7-16  DMC Pressure and Flow Board ........................................................ 7-17  Pump Replacement ........................................................................... 7-19  Capillary Cleaning and/or Replacement ............................................ 7-22  Capillary O-Ring Replacement ......................................................... 7-24  Power Supply Replacement ............................................................... 7-24  Step POL Board Replacement ........................................................... 7-26  DMC Optical Bench......................................................................... 7-29  Optical Bench Removal ................................................................. 7-30  Optical Switch Replacement .......................................................... 7-31  Purge Wheel Housing Removal...................................................... 7-34  Filter Wheel Replacement .............................................................. 7-35  Motor Replacement ....................................................................... 7-37  Motor and Filter Wheel Alignment ................................................ 7-39  Optical Bench/Heater Removal...................................................... 7-41  Pre-Amp/Detector Assembly Removal ........................................... 7-43  IR Source Replacement .................................................................. 7-45  Optional Manifold Replacement ....................................................... 7-48  Optional Zero Air Scrubber Replacement ......................................... 7-50  Optional DMC Oxygen Sensor......................................................... 7-51  Oxygen Sensor Removal................................................................. 7-51  Oxygen Sensor Board Replacement ................................................ 7-54  Oxygen Sensor Capillary Replacement ........................................... 7-56  Oxygen Sensor Replacement .......................................................... 7-58  Chapter 8  System Description ........................................................................................... 8-1  Optical Bench DMC........................................................................... 8-2  Optical Bench Hardware .................................................................. 8-2  Filter Wheel Motor .......................................................................... 8-2  Filter Wheel Purge ........................................................................ 8-2  Detector Preamp .............................................................................. 8-3  Infrared Source................................................................................. 8-3  48iQ Instruction Manual Thermo Scientific Contents Optical Bench DMC Board ............................................................. 8-3  Common Electronics .......................................................................... 8-4  Power Supply ................................................................................... 8-7  Front Panel ...................................................................................... 8-7  I/O and Communication Components ............................................ 8-7  System Controller Board .................................................................. 8-7  Backplane Board .............................................................................. 8-7  Peripherals Support System ................................................................. 8-8  Fan ................................................................................................... 8-8  STEP POL Board ............................................................................ 8-8  Sample Pump ................................................................................... 8-8  Solenoid Valve Panel (optional) ....................................................... 8-8  Flow/Pressure DMC ........................................................................... 8-8  Firmware ............................................................................................. 8-8  Oxygen Sensor (optional) .................................................................... 8-9  Thermo Scientific Chapter 9  Optional Equipment .......................................................................................... 9-1  Connecting External Devices .............................................................. 9-1  Communication Board .................................................................... 9-2  RS-232/RS-485 Port ..................................................................... 9-2  RS-485 External Accessory Port .................................................... 9-3  Analog I/O Board ............................................................................ 9-4  Analog Voltage Inputs ................................................................... 9-4  Analog Voltage Outputs ................................................................ 9-5  Analog Output Calibration .............................................................. 9-6  Analog Output Zero Calibration ................................................... 9-7  Analog Output Full Scale Calibration ........................................... 9-9  Digital I/O Board........................................................................... 9-11  Digital Inputs .............................................................................. 9-11  Digital Relay Switches ................................................................. 9-13  Valve Driver Outputs .................................................................. 9-15  Internal Zero/Span Assembly ............................................................ 9-17  Internal Oxygen (O2) Sensor ............................................................. 9-18  Internal Zero Air Scrubber ................................................................ 9-18  PTFE Particulate Filter ..................................................................... 9-18  Appendix A  Safety, Warranty, and WEEE .......................................................................... A-1  Safety .................................................................................................. A-1  Safety and Equipment Damage Alerts .............................................. A-1  Warranty ............................................................................................. A-2  WEEE Compliance ............................................................................. A-4  WEEE Symbol ................................................................................. A-4  Appendix B  Quick Reference .............................................................................................. B-1  List of Figures ..................................................................................... B-1  48iQ Instruction Manual vii Contents List of Tables....................................................................................... B-3  Appendix C  viii 48iQ Instruction Manual GNU Lesser General Public License ............................................................ C-1  GNU Lesser General Public License ................................................... C-1  Thermo Scientific Chapter 1 Introduction The Thermo Scientific™ 48iQ Carbon Monoxide (CO) Analyzer utilizes gas filter correlation technology to measure the amount of carbon monoxide in the air. The analyzer is based on the principle that carbon monoxide (CO) absorbs infrared radiation at a wavelength of 4.6 microns. Because infrared absorption is a nonlinear measurement technique, it is necessary for the instrument electronics to transform the basic analyzer signal into a linear output. The 48iQ Gas Analyzer uses an exact calibration curve to accurately linearize the instrument output over any range up to a concentration of 10,000 ppm. iQ Series Instrument Platform Thermo Scientific The iQ Series Instrument Platform is a smart environmental monitoring solution for ambient and source gas analysis that affords greater control over instrument performance and data availability. ● Distributed Measurement and Control (DMC) module design simplifies serviceability. Each DMC module contains its own microprocessor control enabling functional performance validation at the module level. ● Built-in predictive diagnostics and preventive maintenance schedules identify problems before they occur. The iQ Series platform sends email notifications directly to Thermo Fisher Scientific’s world class service support team or locally identified addressees in order to proactively communicate analyzer performance conditions and identify spare parts needs before an operational concern arises. ● The iQ Series platform supports Modbus, streaming and VNC protocols over serial and Ethernet as well as analog and digital I/O for easy integration into most data management systems. ● Three standard USB ports afford convenient data download capability as well as the ability to connect additional hardware, such as a computer keyboard or mouse. 48iQ Instruction Manual 1-1 Introduction iQ Series Instrument Platform ● The iQ Series GUI runs on a 7” color touchscreen display. The GUI is highly flexible and can be customized to enable a tailored experience to simplify daily operations. Custom designed ePort software allows remote access to the analyzer with a PC. The ePort control mirrors the same GUI look and feel as the instrument touchscreen providing a speedy and familiar operational experience. Figure 1–1. 48iQ Front 1-2 48iQ Instruction Manual Thermo Scientific Introduction 48iQ Principle of Operation 48iQ Principle of Operation The 48iQ operates on the principle that carbon monoxide (CO) absorbs infrared radiation at a wavelength of 4.6 microns. Gas Filter Correlation (GFC) is a particular infrared technique that selectively measures light absorption uniquely due to CO by the ratio of sample-absorbed light to a filtered reference measurement. Light from a broadband infrared source passes through a gas filter wheel alternating between N2 and CO filled cells and passes through a narrow bandpass interference filter before passing into the volume containing sample gas. Light that passes through the N2 cell is absorbed by CO in the sample gas normally as the sample signal; light that passes through the CO cell is already blocked where CO absorbs, and so is unchanged by sample CO as the reference. The ratio of “sample” to “reference” (S/R) is acquired at high speeds and corrects for light intensity and other changes to achieve precision measurement. Because the filtering is achieved with CO gas itself, the GFC technique is specific for CO. The so-called “spectral resolution” of the technique is such that the measured ratio is partly but not strictly linear as predicted by the wellknown “Beer’s Law.” The 48iQ uses an internally stored calibration curve to accurately linearize the instrument output over any range up to a concentration of 10,000 ppm. Gas sample is drawn into the 48iQ through the rear panel of the analyzer and through the optical detection system using an embedded intake pump, as shown in Figure 1–2. Gas may be ambient, or it may be delivered from a more distant location using standard tubing connected to the rear panel. The rear panel may be a simple inlet bulkhead, or it could utilize three inlets controlled with solenoid valves: Conventionally, the three inlet configuration is used to conduct independent zero and span reference measurements. In addition to the inlet configuration, options may be added, such as an oxygen sensor or a “zero scrubber” that catalyzes CO to CO2 to provide a zero reference. Each of these operate within the basic gas intake pathway described above. Figure 1–2 shows the simplest case fluid schematic. Gas is introduced into the “SAMPLE” port at near ambient pressures (we describe a flow bypass later on that assures ambient pressure sampling). It is pulled by a single stage pump through the 48 DMC Bench where CO is detected and then through a constriction (a capillary in the “Flow Pressure DMC”) which regulates the flow intake to approximately 1 SLPM while monitoring and maintaining ambient pressure on the optical bench side. Note there is also a filter purge that bypasses the sampling but is also drawn by the pump downstream of the constriction. Figure 1–3 shows the example of a three inlet configuration with zero span capabilities and a zero air scrubber. Thermo Scientific 48iQ Instruction Manual 1-3 Introduction 48iQ Principle of Operation Figure 1–2. 48iQ Flow Schematic Figure 1–3. 48iQ Flow Schematic with Zero Span and Zero Air Scrubber 1-4 48iQ Instruction Manual Thermo Scientific Introduction Specifications Specifications Table 1–1 lists the specifications for the 48iQ. Table 1–1. 48iQ Specifications Thermo Scientific Range 0-10000 (ppm or mg/m3) Zero Noise 0.02 ppm RMS (30 second averaging time) Detection Limit 0.04 ppm (30 second averaging time) Zero Drift <0.1 ppm (24 hour) Span Drift ±0.5% reading (24 hour) Response Time 60 seconds (30 second averaging time) Linearity ±1% full-scale ≤ 1000 ppm ±2.5% full-scale > 1000 ppm Flow Rate 1.0 SLPM (1 atm inlet pressure) Operating Temperature Range 5–45 °C (may be safely operated over the range of 0–45 °C) Power Requirements 100–240 VAC 50/60 Hz 275 watts Physical Dimensions 24 in (D) x 16.75 in (W) x 8.72 in (H) [609 mm (D) 425.45 mm (W) x 221.48 mm (H)] Weight 34.3 lbs Analog I/O 4 Isolated Voltage Inputs 0–10 V 6 Isolated Analog Voltages Outputs, with 4 selectable ranges 6 Isolated Analog Current Outputs, with 2 selectable ranges Digital I/O 16 Digital Inputs (TTL) 8 Solenoid Driver Outputs 10 Digital Reed Relay Contact Outputs Serial Ports 1 RS-232/485 port 1 RS-485 External Accessory port Other Ports 3 Full Speed USB ports (one in front, two in rear) 1 Gigabit Ethernet port Communication Protocols MODBUS, Streaming Approvals and Certifications CE, TUV-SUD Safety, EPA 48iQ Instruction Manual 1-5 Introduction Specifications Table 1–2. 48iQ Optional Internal Oxygen Sensor Specifications 1-6 48iQ Instruction Manual Technology Paramagnetic Range 0-100% O2 Accuracy (Intrinsic error) <±0.1% O2 Linearity <±0.1% O2 Repeatability <±0.1% O2 Zero Drift <±0.2% O2 per month (excludes up to 0.1% O2 in the first 24 hours of operation) Response Time (T10-T90) <2.5 seconds Weight Approximately 2 lbs. (in addition to standard instrument) Thermo Scientific Introduction Dimensions Dimensions Figure 1–4. Bench Mount Assembly (dimensions in inches [mm]) Thermo Scientific 48iQ Instruction Manual 1-7 Introduction Dimensions Figure 1–5. Rack Mount Assembly (dimensions in inches [mm]) 1-8 48iQ Instruction Manual Thermo Scientific Introduction Dimensions Figure 1–6. Rack Mount Requirements Figure 1–7. Rack Requirements Part 2 Thermo Scientific 48iQ Instruction Manual 1-9 Chapter 2 Installation and Setup Installation and Setup describes how to unpack, setup, and start-up the instrument. The installation should always be followed by instrument calibration as described in the “Calibration” chapter of this manual. Equipment Damage Do not attempt to lift the instrument by the cover or other external fittings. ▲ Unpacking and Inspection The 48iQ is shipped complete in one container. If there is obvious damage to the shipping container when you receive the instrument, notify the carrier immediately and hold for inspection. The carrier is responsible for any damage incurred during shipment. Use the following procedure to unpack and inspect the instrument. 1. Remove the instrument from the shipping container and set it on a table or bench that allows easy access to both the front and rear. 2. Remove the cover to expose the internal components. (See “Figure 2– 1” on page 2-2.) 3. Check for possible damage during shipment. 4. Check that all connectors and circuit boards are firmly attached. 5. Re-install the cover. 6. Remove any protective plastic material from the case exterior. Thermo Scientific 48iQ Instruction Manual 2-1 Installation and Setup Cover Removing and Replacing Cover Removing and Replacing Use the following procedure to remove and replace the cover. Equipment required: Phillips screwdriver, #2 1. Unfasten the four 8-32 screws securing the cover (shipping screws). 2. Press in both latches located on top cover and hold while pulling up to remove. Set upright. Figure 2–1. Removing the Cover 3. To replace, align cover and drop in. Latches will automatically snap in place. 2-2 48iQ Instruction Manual Thermo Scientific Installation and Setup Mounting Options Mounting Options Bench Mount The instrument can be installed in the following configurations: ● Bench Mount ● Rack Mount Positioned on bench, includes installing feet. See Figure 2–2. Equipment required: Slot drive, 5/16-inch 1. Fasten feet in position 1 or 2 to fit to the desired depth. Figure 2–2. Installing Feet Thermo Scientific 48iQ Instruction Manual 2-3 Installation and Setup Mounting Options Rack Mount Mounting in a rack includes removing the front panel and installing ears and handles. Equipment required: Phillips drive, #2 1. Start by gripping from the top corners of the front panel and pull outwards. See Figure 2–3. Figure 2–3. Removing the Front Panel 2. Unfasten the four 8-32 pan head screws. 3. Slide ears outwards. 4. Use the same four 8-32 pan head screws to secure it. 5. Install the handles with the four 8-32 flat head screws that came with the handle kit on the backside. See Figure 2–4. 2-4 48iQ Instruction Manual Thermo Scientific Installation and Setup Mounting Options Figure 2–4. Installing Ears and Handles Thermo Scientific 48iQ Instruction Manual 2-5 Installation and Setup Setup Procedure Setup Procedure Use the following procedure to setup the instrument: 1. Connect the sample line to the SAMPLE bulkhead on the rear panel (Figure 2–5). Ensure that the sample line is not contaminated by dirty, wet, or incompatible materials. All tubing should be constructed of PTFE, 316 stainless steel, borosilicate glass, or similar tubing with an OD of 1/4-inch and a minimum ID of 1/8-inch. The length of the tubing should be less than 10 feet. Note Gas must be delivered to the instrument free of particulates. It may be necessary to use the PTFE particulate filter as described in “PTFE Particulate Filter” on page 9-18. ▲ Note Gas must be delivered to the instrument at atmospheric pressure. It may be necessary to use an atmospheric bypass plumbing arrangement as shown in Figure 2–6 if gas pressure is greater than atmospheric pressure. ▲ 2. Connect the EXHAUST bulkhead to a suitable vent. The exhaust line should be 1/4-inch OD with a minimum ID of 1/8-inch. The length of the exhaust line should be less than 10 feet. Verify that there is no restriction in this line. 3. If the external purge filter is installed, connect a source of pressurized clean dry zero air or a non-toxic inert gas at 10 psig to the purge fitting for use as the Filter Wheel Purge gas. A purge gas flow of 140 cc/min is recommended for optimum performance. The Filter Wheel Purge is described more fully on page 8-2. 4. If the optional zero/span solenoid valves are installed, connect a source of CO-free air to the ZERO IN bulkhead, and connect a source of CO span gas to the SPAN bulkhead. 5. Connect a suitable recording device to the rear panel connector. For detailed information about connecting to the instrument, refer to: “Connecting External Devices” on page 9-1 Communications > “Analog I/O” on page 3-59, and “Digital I/O” on page 3-61. 2-6 48iQ Instruction Manual Thermo Scientific Installation and Setup Setup Procedure 6. Plug the instrument into an outlet of the appropriate voltage and frequency. Icon Here The 48iQ is supplied with a three-wire grounding cord. Under no circumstances should this grounding system be defeated. ▲ Figure 2–5. 48iQ Rear Panel Figure 2–6. Atmospheric Dump Bypass Plumbing Thermo Scientific 48iQ Instruction Manual 2-7 Installation and Setup Startup Startup Use the following procedure when starting the instrument. 1. Turn the power ON. 2. Allow 90 minutes for the instrument to stabilize. 3. Set instrument parameters such as operating ranges and averaging times to appropriate settings. For more information about instrument parameters, see the “Operation” chapter. 4. Before beginning the actual monitoring, perform a multipoint calibration as described in the “Calibration” chapter. Figure 2–7. Front Panel and Touchscreen Display 2-8 48iQ Instruction Manual Thermo Scientific Chapter 3 Operation This chapter describes the functionality of the touchscreen user interface. Instrument Display The Instrument Display consists of a Title Bar, a User Interface, and a Status Bar. The Title Bar, located at the top, includes the Home button, instrument name, instrument gas mode, and Help button. The User Interface, located in the middle, is where the Home Screen and all other screens are accessed. The Home Screen has three Main Menu buttons, located on the left side, which include Calibration, Data, and Settings, while the user interface to the right of the buttons displays the chemical name(s), concentration value(s) and unit(s). The Status Bar, located at the bottom, includes the Back button, Access Levels, Health Check, Favorites, Date and Time, and Contact Information. Home Screen (single range mode with O2 option) Title Bar User Interface Status Bar Thermo Scientific 48iQ Instruction Manual 3-1 Operation Instrument Display Home Screen (dual or auto range mode with O2 option) Title Bar User Interface Status Bar 3-2 48iQ Instruction Manual Thermo Scientific Operation Instrument Display The Instrument Display contains the following information: ● ● ● Thermo Scientific Title Bar: ● Home button: When pressed, it brings you to the Home Screen. ● Title Text: Displays instrument name when in the Home Screen. Displays the chemical name, current concentration reading and unit when in all other screens. When unit is pressed, it brings you to the gas unit selection screen. ● Gas Mode button: Displays current gas mode of the instrument. When pressed, it brings you to the Gas Mode selection screen. ● Help button: When pressed, it brings you to the help screens. User Interface: ● Calibration button: Allows the user to calibrate the instrument, setup automatic calibrations, and view calibration data. ● Data button: Allows the user to view, graph, stream, and analyze data. ● Settings button: Shows real-time status and alarms, also predictive diagnostics and maintenance history. Contains controls for operating the instrument, communications, and sets instrument options. ● Concentration: When in single mode, displays CO concentrations in big, bold characters, depending on operating mode. When in dual or auto mode, displays either high range or low range values based on the range setting. Status Bar: ● Back button: When pressed, it displays the previous screen. ● Access Levels button: Allows the user to set security access levels, and allows/restricts access to functionality depending on the selected access level. ● Health Check button: Brings the user to the Health Check screen. ● Favorites button: Allows user-selectable favorite buttons. To add to the favorites screen, user presses the desired screen button for 2 seconds. The user will be directed to the favorites screen where the user chooses the button position. To remove a favorite button from the favorites screen, press and hold button for 2 seconds. ● Clock: Displays current date and time. 48iQ Instruction Manual 3-3 Operation Instrument Display ● 3-4 48iQ Instruction Manual Thermo Scientific Information button: Shows contact information. Thermo Scientific Operation Instrument Display Main Menus and Keypads The Main Menu buttons, located on the Home Screen, contains three submenus. Each submenu contains related instrument settings. This chapter describes each submenu and screen in detail. Refer to the appropriate sections for more information. Calibration Calibrate Background Calibrate Span Coefficient Zero/Span Schedule Calibrate O2 Span Coefficient  (Optional) Advanced Calibration  Manual Calibration  Adjust Background  Adjust Span Coefficient  Reset Bkg and Span Coef  Mulitpoint Calibration  Manual O2 Calibration        (Optional)  2‐Point O2 Calibration        (Optional)  Calibration History Data View Data Log (Last Hour)  Graph View Data Log (Last 24 Hours)  Graph View Data (User Defined Time)   Start Time  End Time – View Data  Graph Advanced Data  Data Logging Setup  Streaming Data Setup Settings Health Check  Status and Alarms  Predictive Diagnostics  Maintenance  File Sharing and Support  Firmware Version Measurement Settings  Averaging Time  Range Mode Selection  Range Setting  Gas Mode  Gas Units  Dilution Ratio  Advanced Measurement  Optical Bench Settings  Compensation  Pressure Calibration Communication Settings Instrument Settings  Display Setup  Alarm Setpoints  Language  Clock  Pump Power Configuration Security Access Levels USB Drive  Firmware Update Via USB  Drive  Download Data to USB Drive  Change USB Password User Contact Information Update Bootloader Thermo Scientific 48iQ Instruction Manual 3-5 Operation Instrument Display Numeric Keypad 3-6 48iQ Instruction Manual User enters a value into the box using the number keypad. When the user needs to change a value, such as for flow rates, temperatures or pressures, the keypad screen will automatically display. Initially, the box above the keypad will display the current value. Enter a new value using the keypad, and then select the Enter button to set the new value or press the Cancel button to exit the keypad screen and return to the previous screen without saving the value. Thermo Scientific Operation Instrument Display Alphanumeric Keypad Thermo Scientific User enters a value into the box using the keypad. When the user needs to change an alphanumeric value, this keypad will automatically display. Initially, the box above the keypad will display the current value. Enter a new value using the keypad, and then select the Enter button to set the new value or press the Cancel button to exit the keypad screen and return to the previous screen without saving the value. The alphanumeric keypad is only available when the user needs to enter alphabet characters. 48iQ Instruction Manual 3-7 Operation Instrument Display 3-8 48iQ Instruction Manual Thermo Scientific Operation Calibration Calibration The Calibration screen allows the user to calibrate the system, setup automatic calibrations, and view calibration data. See Chapter 4 “Calibration” for further instructions on how to run a calibration. The following screens show the calibration screens in single range mode and dual or auto range mode. (The only difference between the screens, are the words “High Range” and “Low Range”.) The dual and auto range modes have two CO span coefficients (high and low). This allows each range to be calibrated separately. This is necessary if the two ranges used are not close to one another. For example, a low CO range of 50 ppm and a high CO range of 1000 ppm. For more information about range modes, see “Range Mode Selection” on page 3-76. Home Screen>Calibration (single range mode with O2 option) Home Screen>Calibration (dual or auto range mode with O2 option) The Calibration menu contains the following information: Thermo Scientific ● Calibrate Background: Sets the CO reading to zero. ● Calibrate Span Coefficient: Sets the span coefficient when in single range mode. 48iQ Instruction Manual 3-9 Operation Calibration 3-10 48iQ Instruction Manual ● Calibrate High Range Span Coefficient: Sets the high range span coefficient when in dual or auto range mode. ● Calibrate Low Range Span Coefficient: Sets the low range span coefficient when in dual or auto range mode. ● Zero/Span Schedule: Programs the instrument to perform fully automated zero and span checks or adjustments. ● Calibrate O2 Span Coefficient: When the O2 Sensor option is turned on (in the Settings>Configuration screen), this button will appear. It allows an O2 calibration to be performed. ● Advanced Calibration: Calibrates the instrument using a manual zero/span calibration, a multipoint calibration and provides calibration history. Thermo Scientific Operation Calibration Calibrate Background The Calibrate Background screen is used to calibrate the instrument zero background. Before making an adjustment, be sure the analyzer samples zero air for at least 5 minutes. It is important to note the averaging time when calibrating. The longer the averaging time the more precise the calibration results. To achieve maximum precision, allow the instrument to stabilize each time input gas is changed and set the averaging time to 300-second averaging. The Averaging Time is located at Settings>Measurement Settings>Averaging Time. Home Screen>Calibration>Calibrate Background The Calibrate Background menu contains the following information: Thermo Scientific ● Target Concentration: Read only. Displays what the concentration value will become when the calibrate button is pressed. ● Current Background: Read only. Displays what the current user-set background is. ● Calculated Background: Read only. Displays what the current user-set background will become when the calibrate button is pressed. ● Calibrate: When pressed, updates the background, making the concentration go to zero. 48iQ Instruction Manual 3-11 Operation Calibration Calibrate Span Coefficient The Calibrate Span Coefficient screen is used to enter the span concentration and calibrate the CO span coefficient. The CO span coefficient is calculated, stored, and used to correct the current reading. The following screens are shown in single range mode and dual or auto range mode. In dual or auto range modes, “High” or “Low” is displayed to indicate the calibration of the high or low coefficient. The Calibrate High Range Span Coefficient and Calibrate Low Range Span Coefficient screens function the same way. It is important to note the averaging time when calibrating. The longer the averaging time the more precise the calibration results. To achieve maximum precision, allow the instrument to stabilize each time input gas is changed and set the averaging time to 300-second averaging. Home Screen>Calibration>Calibrate Span Coefficient (single range mode) Home Screen>Calibration>Calibrate High Range Span Coefficient (dual or auto range mode) 3-12 48iQ Instruction Manual Thermo Scientific Operation Calibration The Calibrate Span Coefficient menu contains the following information: Thermo Scientific ● Edit Span Concentration: User enters the span concentration when in single range mode. ● Edit High Range Span Concentration: User enters the high range span concentration when in dual or auto range mode. ● Edit Low Range Span Concentration: User enters the low range span concentration when in dual or auto range mode. ● Current High Range Concentration: Read only. Current high range concentration reading when in dual or auto range mode. ● Current Low Range Concentration: Read only. Current low range concentration reading when in dual or auto range mode. ● Current Span Coefficient: Read only. Displays what the current user-set span coefficient is when in single range mode. ● Current High Range Span Coefficient: Displays what the current user-set high range span coefficient is when in dual or auto range mode. ● Current Low Range Span Coefficient: Displays what the current user-set low range span coefficient is when in dual or auto range mode. ● Calculated Span Coefficient: Read only. After the “Edit Span Concentration” value is entered, the new calculated span coefficient is displayed when in single range mode. ● Calculated High Range Span Coefficient: Read only. After the “Edit High Range Span Concentration” value is entered, the new calculated high range span coefficient is displayed when in dual or auto range mode. ● Calculated Low Range Span Coefficient: Read only. After the “Edit Low Range Span Concentration” value is entered, the new calculated low range span coefficient is displayed when in dual or auto range mode. ● Calibrate: When pressed, updates the coefficient and the concentration should match the span concentration. 48iQ Instruction Manual 3-13 Operation Calibration Zero/Span Schedule The Zero/Span Schedule is used to program the instrument to perform fully automated zero and span checks or adjustments. Home Screen>Calibration>Zero/Span Schedule Home Screen>Calibration>Zero/Span Schedule>More The Zero/Span Schedule contains the following information: 3-14 48iQ Instruction Manual ● Zero/Span Schedule: Toggles zero/span schedule Enabled or Disabled. ● Next Time: Allows the user to view and set the initial date and time (24-hour format) of the zero/span schedule. ● Period: Defines the period or interval between zero/span checks or calibrations. If period = 0, the schedule runs continuously. ● Zero Duration: Sets how long zero air is sampled by the instrument. ● Span Duration: Sets how long span gas is sampled by the instrument. ● Purge Duration: Sets how long the purge period will be at the end of the schedule. Thermo Scientific Operation Calibration Thermo Scientific ● Total Duration: Read only. Displays the total time duration of all scheduled events. ● Schedule Averaging Time: Allows the user to adjust the zero/span schedule averaging time. This averaging time only affects the zero/span schedule. ● Background Calibration: Toggles Enabled/Disabled. If enabled, background value is calibrated. If disabled, schedule runs a background check only and background value is not updated. ● Span Calibration: Toggles Enabled/Disabled. If enabled, span coefficient is calibrated. If disabled, schedule runs a calibration check only and span coefficient is not updated. ● Zero : Span Ratio: Allows the user to perform more scheduled background calibration checks to span calibration checks. Default is 1 and therefore reads 1:1. (This means that each time the schedule is run, both the zero duration and span duration occurs.) The zero/span ratio is allowable between 1 to 99. If 99 is chosen, the schedule should only perform the Span on the 99th iteration. 48iQ Instruction Manual 3-15 Operation Calibration Calibrate O2 Span Coefficient The Calibrate O2 Span Coefficient screen is used to enter the O2 span concentration and calibrate the O2 span coefficient while sampling span gas of known concentration. This button appears if the O2 Sensor option is selected in the configuration screen. It is important to note the averaging time when calibrating. The longer the averaging time the more precise the calibration results. To achieve maximum precision, allow the instrument to stabilize each time input gas is changed and set the averaging time to 300-second averaging. The O2 Averaging Time is located at Settings>Measurement Settings>Averaging Time. Home Screen>Calibration>Calibrate O2 Span Coefficient (single range mode) The Calibrate O2 Span Coefficients screen contains the following information: 3-16 48iQ Instruction Manual ● Edit O2 Span Concentration: User enters the O2 span concentration. ● Current O2 Concentration: Read only. Current O2 concentration reading. ● Current O2 Span Coefficient: Read only. Current O2 span coefficient value. ● Calculated O2 Span Coefficient: Read only. After the “Edit O2 Span Concentration” value is entered, the new calculated O2 span coefficient is displayed. ● Calibrate: When pressed, updates the O2 coefficient and the O2 concentration should match the span concentration. Thermo Scientific Operation Calibration Advanced Calibration The Advanced Calibration screen provides several additional ways to calibrate the instrument and view the calibration history. See Chapter 4 “Calibration” for further instructions on how to run a calibration. The following screens show the advanced screens in single range mode and dual or auto range mode. (The only difference between the screens, are the words “High” and “Low”.) For more information about range modes, see “Range Mode Selection” on page 3-76. Home Screen>Calibration>Advanced Calibration (single range mode with O2 option) Home Screen>Calibration>Advanced Calibration (dual or auto range mode with O2 option) The Advanced Calibration screens contain the following information: Thermo Scientific ● Manual Calibration: The user manually adjusts the background or span coefficient. ● Multipoint Calibration: Up to three gas concentrations (cal-points) may be calibrated. Three cal-points will give the most accurate readings over the entire range. 48iQ Instruction Manual 3-17 Operation Calibration 3-18 48iQ Instruction Manual ● High Range Multipoint Calibration: Up to three gas concentrations (calpoints) for high range may be calibrated. Three cal-points will give the most accurate readings over the entire range. ● Low Range Multipoint Calibration: Up to three gas concentrations (calpoints) for low range may be calibrated. Three cal-points will give the most accurate readings over the entire range. ● Manual O2 Calibration: The user manually adjusts the O2 span coefficient based on the current O2 concentration value. ● 2-Point O2 Calibration: The user manually performs a 2-point calibration of the O2 sensor. ● Calibration History: Lists all calibrations performed and calibration checks. Thermo Scientific Operation Calibration Manual Calibration The Manual Calibration screen adjusts the zero background or span coefficient based on a user entered value. See Chapter 4, “Calibration” for instructions on how to run a Manual Calibration. The following screens show the manual calibration screens in single range mode and dual or auto range mode. In dual or auto range modes, “High Range” or “Low Range” buttons are displayed to indicate the calibration of the high or low coefficient. Home Screen>Calibration>Advanced Calibration>Manual Calibration (single range mode) Home Screen>Calibration>Advanced Calibration>Manual Calibration (dual or auto range mode) The Manual Calibration menu contains the following information: Thermo Scientific ● Adjust Background: Allows the user to manually adjust the zero background. ● Adjust Span Coefficient: Allows the user to manually adjust the span coefficient when in single range mode. 48iQ Instruction Manual 3-19 Operation Calibration 3-20 48iQ Instruction Manual ● Adjust High Range Span Coefficient: Allows the user to manually adjust the high range span coefficient when in dual or auto range mode. ● Adjust Low Range Span Coefficient: Allows the user to manually adjust the low range span coefficient when in dual or auto range mode. ● Reset Background to 0.000 and Span Coefficient to 1.000: Resets all backgrounds and coefficients. Thermo Scientific Operation Calibration Adjust Background The Adjust Background screen is used to manually adjust the zero background. Home Screen>Calibration>Advanced Calibration>Manual Calibration>Adjust Background The Adjust Background screen contains the following information: Thermo Scientific ● Adjust Background: User manually adjusts zero background. ● Adjusted Concentration: Read only. Shows adjusted concentration based on adjusted zero background. ● Calibrate: Calibrates zero background by saving the newly adjusted zero background value. 48iQ Instruction Manual 3-21 Operation Calibration Adjust Span Coefficient The Adjust Span Coefficient screen is used to manually adjust the span coefficient. The following screen is shown in single range mode and dual or auto range mode. In dual or auto range modes, “High Range” or “Low Range” is displayed to indicate the calibration of the high or low coefficient. The Adjust High Range Span Coefficient and Adjust Low Range Span Coefficient screens function the same way. Home Screen>Calibration>Advanced>Manual Calibration>Adjust Span Coefficient (single range mode) Home Screen>Calibration>Advanced>Manual Calibration>Adjust High Range Span Coefficient (dual or auto range mode) The Adjust Span Coefficient menu contains the following information: 3-22 48iQ Instruction Manual ● Adjust Span Coefficient: User manually adjusts span coefficient when in single range mode. ● Adjust High Range Span Coefficient: User manually adjusts high range span coefficient when in dual or auto range mode. Thermo Scientific Operation Calibration Thermo Scientific ● Adjust Low Range Span Coefficient: User manually adjusts low range span coefficient when in dual or auto range mode. ● Adjusted Concentration: Read only. Shows adjusted concentration based on adjusted span coefficient when in single range mode. ● Adjusted High Range Concentration: Read only. Shows adjusted high range concentration based on adjusted high range span coefficient when in dual or auto range mode. ● Adjusted Low Range Concentration: Read only. Shows adjusted low range concentration based on adjusted low range span coefficient when in dual or auto range mode. ● Calibrate: Calibrates span coefficient by saving the newly adjusted span coefficient. 48iQ Instruction Manual 3-23 Operation Calibration Multipoint Calibration The Multipoint Calibration screen is used to calibrate the instrument using up to three gas concentrations (cal points) for each range. It is suggested to use three cal-points, as this will give the most accurate readings over the entire range. The following screen is shown in single range mode. In dual or auto range modes, “High Range” or “Low Range” is displayed to indicate the calibration of the high or low coefficients. The High Range Multipoint Calibration and Low Range Multipoint Calibration screens function the same way. Note Pressing the Multipoint Calibration button responds with “It is recommended to calibrate all three points” and requires an OK action. ▲ Home Screen>Calibration>Advanced Calibration>Multipoint Calibration (single range mode) The Multipoint Calibration screen contains the following information: 3-24 48iQ Instruction Manual ● Point 1: First cal point used in the calibrated multipoint polynomial curve. ● Point 2: Second cal point used in the calibrated multipoint polynomial curve. ● Point 3: Third cal point used in the calibrated multipoint polynomial curve. ● First Coefficient: Read only. Value of the first coefficient in the polynomial curve. ● Second Coefficient: Read only. Value of the second coefficient in the polynomial curve. Thermo Scientific Operation Calibration Thermo Scientific ● Third Coefficient: Read only. Value of the third coefficient in the polynomial curve. ● Reset Points to Default Values: Resets multipoint coefficients to default values. 48iQ Instruction Manual 3-25 Operation Calibration Point 13 The Point 1 screen allows the user to view and set the selected calibration point. The point 2 and point 3 screens function the same way. Therefore, the following example of point 1 screen applies to point 2 and 3 as well. The following screen is shown in single range mode. In dual or auto range modes, the High Range Multipoint Calibration and Low Range Multipoint Calibration screens function the same way. The customer defines the ranges. It is suggested to perform the following calibration points for each range: Cal point 1: 80% of range Cal point 2: 50% or range Cal point 3 20% of range Home Screen>Calibration>Advanced Calibration>Multipoint Calibration>Point 1 The Point 1 screen contains the following information: 3-26 48iQ Instruction Manual ● Edit Point 1 Span Concentration: User enters span concentration. ● Point 1 Coefficient: Read only. After selecting the value on the Edit Point 1 Span Concentration button and after pressing the Calibrate button, the Point 1 Coefficient value is updated. ● Calibrate: Calibrates point 1 coefficient. Thermo Scientific Operation Calibration Manual O2 Calibration The Manual O2 Calibration screen allows the O2 span coefficients to be changed manually while sampling span gas of known concentration. This button appears if the O2 Sensor option is selected in the Configuration screen. Home Screen>Calibration>Advanced Calibration>Manual Calibration (single range mode) The Manual O2 Calibration screen contains the following information: Thermo Scientific ● Adjust O2 Span Coefficient: Allows the user to manually adjust the O2 span coefficient. ● Reset O2 Coefficient to 1.000: Resets coefficient. 48iQ Instruction Manual 3-27 Operation Calibration Adjust O2 Span Coefficient The Adjust O2 Span Coefficient screen is used to manually adjust the O2 span coefficient. Home Screen>Calibration>Advanced>Manual Calibration>Adjust O2 Span Coefficient The Adjust O2 Span Coefficient menu contains the following information: 3-28 48iQ Instruction Manual ● Adjust O2 Span Coefficient: User manually adjusts span coefficient. ● Adjusted Concentration: Read only. Shows adjusted O2 concentration based on adjusted O2 span coefficient. ● Calibrate: Calibrates span coefficient by saving the newly adjusted O2 span coefficient. Thermo Scientific Operation Calibration 2-Point O2 Calibration The 2-Point O2 Calibration screen is used to calibrate the O2 sensor using 2 different gas concentrations. Both points need to be calibrated for a successful calibration. It is suggested that the two O2 concentrations used for this calibration be 0% and 20.9%. This button appears if the O2 Sensor option is selected in the Configuration screen. Home Screen>Calibration>Advanced Calibration>2-Point O2 Calibration> Home Screen>Calibration>Advanced Calibration>2-Point O2 Calibration>Continue to 2-Point O2 Calibration The 2-Point O2 Calibration screen contains the following information: Thermo Scientific ● 2-Point O2 Calibration Point 1: First cal point used in the 2 point O2 calibration. Defaults to 0.000%. ● 2-Point O2 Calibration Point 2: Second cal point used in the 2 point O2 calibration. Defaults to 20.900%. 48iQ Instruction Manual 3-29 Operation Calibration Point 12 The Point 1 screen allows the user to view and set the selected calibration point. The point 2 screen functions the same way. Therefore, the following example of point 1 screen applies to point 2 as well. Home Screen>Calibration>Advanced Calibration>2-Point O2 Calibration>Continue to 2-Point O2 Calibration>2-Point O2 Calibration Point 1 The 2-Point O2 Calibration Point 1 screen contains the following information: ● Edit O2 Span Concentration: User enters O2 span concentration. ● Current O2 Concentration: Read only. After selecting the value on the Edit O2 Concentration button and after pressing the Calibrate O2 button, the Point 1 Concentration value is updated. ● Calibrate O2 Point 1: Calibrates point 1 coefficient. Note Ensure that the sensor has been sampling the gas for at least 1 minute before pressing the Calibrate O2 Point 1 button. ▲ 3-30 48iQ Instruction Manual Thermo Scientific Operation Calibration Calibration History The Calibration History screen shows the log of calibrations and calibration checks performed. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Calibration>Advanced Calibration>Calibration History Note Pressing the Calibration History button responds with Retrieving calibration log data, it may take a few seconds... ▲ The Calibration History screen contains the following information: Thermo Scientific ● Time Stamp: Time of calibration or calibration check. ● Event: Lists the type of calibration event. ● Result: Concentration result. ● Target: Concentration setpoint value. ● Units: Displays units for each item. ● Average Time: Averaging time used during the calibration or calibration check. 48iQ Instruction Manual 3-31 Operation Data Data The Data screen is used to view and record concentrations and instrument data. Users can view both tabular data and graphed data. Home Screen>Data The Data screen contains the following information: 3-32 48iQ Instruction Manual ● View Data Log (Last Hour): User views last hour of historical data. Table shows most recent data on top. ● View Data Log (Last 24 Hours): User views last 24-hour of historical data. Table shows most recent data on top. ● View Data Log (User Defined Time): User selects the start and end time for viewing the data. Table shows most recent data on top. ● Advanced Data Setup: Allows the user to set up the parameters of how the data is stored and streamed. Thermo Scientific Operation Data View Data Log (Last Hour) The View Data Log (Last Hour) screen allows the user to instantly view the last hour worth of data in real time. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Data>View Data Log (Last Hour) Note Pressing the View Data Log (Last Hour) responds with Retrieving user log data, it may take a few seconds... ▲ The View Data Log (Last Hour) screen contains the following options: ● Thermo Scientific Graph: Displays data graph for the column selected. The graph time axis is defined by the data set in the table. 48iQ Instruction Manual 3-33 Operation Data View Data Log (Last 24 Hours) The View Data Log (Last 24 Hours) screen allows the user to instantly view the last 24 hours worth of data in real time. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Data>View Data Log (Last 24 Hours) Note Pressing the View Data Log (Last 24 Hours) responds with Retrieving user log data, it may take a few seconds... ▲ The View Data Log (Last 24 Hours) screen contains the following options: ● 3-34 48iQ Instruction Manual Graph: Displays data graph for the column selected. The graph time axis is defined by the data set in the table. Thermo Scientific Operation Data View Data Log (User Defined Time) The View Data (User Defined Time) screen is used to specify the start and end time for viewing the data logging table. Home Screen>Data>View Data Log (User Defined Time) Home Screen>Data>View Data Log (User Defined Time)>Save Data Logging Start Time The View Data Log (User Defined Time) screen contains the following information: Thermo Scientific ● Month: Sets month of data logging start time. ● Day: Sets day of data logging start time. ● Year: Sets year of data logging start time. ● Hours: Sets hours of data logging start time. ● Minutes: Sets minutes of data logging start time. ● Save Data Logging Start Time: Pressing this button saves the start time and follows directly to the end time selection for the data logging screen. 48iQ Instruction Manual 3-35 Operation Data The View Data Log (User Defined Time) End Time screen contains the following information: ● Month: Sets month of data logging end time. ● Day: Sets day of data logging end time. ● Year: Sets year of data logging end time. ● Hours: Sets hour of data logging end time. ● Minutes: Sets minute of data logging end time. ● Save Data Logging End Time: Pressing the Save Data Logging End Time button saves the end time and follows directly to the data logging table. Note End time should not be greater than 1 year from start time . ▲ Note The datalogging table is limited to 10,000 points. ▲ 3-36 48iQ Instruction Manual Thermo Scientific Operation Data Advanced Data Setup The Advanced Data Setup screen allows the user to select variables and set up parameters for data logging and streaming data. Home Screen>Data>Advanced Data Setup The Advanced Data Setup screen contains the following information: Thermo Scientific ● Data Logging Setup: User selects the parameters for collecting logged data. ● Streaming Data Setup: User selects the parameters for streaming data to a computer in real time. 48iQ Instruction Manual 3-37 Operation Data Data Logging Setup The Data Logging Setup screen allows the user to select data to be stored and how it is stored. Home Screen>Data>Advanced>Data Logging Setup The Data Logging Setup screen contains the following information: 3-38 48iQ Instruction Manual ● Select Data Logging Variables: User selects instrument variables to log. See “Table 3–1” for data logging variables list. ● Period: User selects how often data is collected by setting the duration between logged data. ● Data Treatment: Toggles between Average, Current, Minimum and Maximum. When set to average, the average value during the period will be recorded. When set to current, the latest data will be recorded. When set to minimum or maximum, the minimum or maximum value during the period will be recorded. ● Erase Data Log Records: Allows the user to erase all values in the data log and updates the data logging table. Thermo Scientific Operation Data Select Data Logging Variables The Select Data Logging Variables screen allows the user to select which variables to store. Note: The Data logging and Streaming variable lists are exclusive from each other but contain the same variable selections. Use the  and  buttons to scroll through the variables. Select the variables to log by pressing the corresponding cells. Next, press the Commit Changes button to save selections. Yellow buttons indicate that the variable is selected. Home Screen>Data>Advanced>Data Logging Setup>Select Data Logging Variables The following table contains the variables that can be selected for data logging: Table 3–1. Data Logging Variables Description Concentration (ppb or μg/m3) High Concentration (ppb or μg/m3) corrected Concentration (ppb or μg/m3) corrected High Concentration (ppb or μg/m3) Bench Pressure (mmHg) Instrument Temperature (degC) Sample Flow (L/min) Averaging Time (sec) High Averaging Time (sec) Concentration Alarm Pressure Alarm Flow Alarm Thermo Scientific 48iQ Instruction Manual 3-39 Operation Data Instrument Temperature Alarm Auto Zero Alarm Auto Span Alarm S/R High S/R Concentration Background (ppb or μg/m3) General Alarm Alerts Instrument Error Low Dynamic Filter Status High Dynamic Filter Status Dilution Ratio Bench Temperature (degC) Sample Intensity Reference Intensity Wheel Speed (RPM) External Alarm 1 External Alarm 2 External Alarm 3 Analog Input 1 Analog Input 2 Analog Input 3 Analog Input 4 Analog Alarms PSB Alarms O2 Alarms O2 % O2 Conc Alarm O2 Averaging Time (sec) O2 Temperature 3-40 48iQ Instruction Manual Thermo Scientific Operation Data Streaming Data Setup The Streaming Data Setup menu allows the user to stream data to a computer. Home Screen>Data>Advanced>Streaming Data Setup The Streaming Data Setup screen contains the following information: Thermo Scientific ● Select Streaming Variables: User selects which variables to stream. See Table 3–2 for streaming variables list. ● Period: Sets the time between streamed data. ● Show Labels: Toggles on/off. When on, shows variable labels to the left of the variable values. ● Show Timestamp: Toggles on/off. When on, shows timestamp at the beginning of each row of data. 48iQ Instruction Manual 3-41 Operation Data Select Streaming Variables The Select Streaming Variables screen allows the user to select which variables to track. Note: The Data logging and Streaming variable lists are exclusive from each other but contain the same variable selections. Use the  and  buttons to scroll through the variables. Select the variables to log by pressing the corresponding cells. Next, press the Commit Changes button to save selections. Yellow buttons indicate that the variable is selected. Home Screen>Data>Advanced>Streaming Data Setup>Select Streaming Variables The following table contains the variables that can be selected for streaming data: Table 3–2. Streaming Data Variables Description Concentration (ppb or μg/m3) High Concentration (ppb or μg/m3) corrected Concentration (ppb or μg/m3) corrected High Concentration (ppb or μg/m3) Bench Pressure (mmHg) Instrument Temperature (degC) Sample Flow (L/min) Averaging Time (sec) High Averaging Time (sec) Concentration Alarm Pressure Alarm 3-42 48iQ Instruction Manual Thermo Scientific Operation Data Flow Alarm Instrument Temperature Alarm Auto Zero Alarm Auto Span Alarm S/R High S/R Concentration Background (ppb or μg/m3) General Alarm Alerts Instrument Error Low Dynamic Filter Status High Dynamic Filter Status Dilution Ratio Bench Temperature (degC) Sample Intensity Reference Intensity Wheel Speed (RPM) External Alarm 1 External Alarm 2 External Alarm 3 Analog Input 1 Analog Input 2 Analog Input 3 Analog Input 4 Analog Alarms PSB Alarms O2 Alarms O2 % O2 Conc Alarm O2 Averaging Time (sec) O2 Temperature Thermo Scientific 48iQ Instruction Manual 3-43 Operation Settings Settings The Settings Menu allows the user to view the instrument alarms, set up user preferences, communicate with outside devices and computers, download files to USB, and sets security protocol. Home Screen>Settings The Settings screen contains the following information: 3-44 48iQ Instruction Manual ● Health Check: View instrument status and alarms, predictive diagnostics, preventive maintenance alerts, maintenance history, email health check report files, and contact Thermo Fisher Scientific technical support. ● Measurement Settings: Allows the user to setup user preferences as related to the concentration readings. ● Communications: Allows the user to communicate with outside devices. ● Instrument Setting: Allows the user to setup alarm setpoints and user preferences. ● Configuration: User selects which options to enable. ● Security Access Levels: User selects security protocol. User can also change security passwords. ● USB Drive: User can update instrument firmware, download data, and change USB password. ● User Contact Information: User sets up their contact information. ● Update Bootloader: Used to update bootloader when an update to the bootloader is available. Thermo Scientific Operation Settings Health Check The Health Check screen is used for viewing instrument status and alarms, predictive diagnostics, preventive maintenance schedules, maintenance history, emailing files describing the health/status of the instrument, and viewing the instrument’s firmware version. Note This symbol denotes there is an active alarm in the module. ▲ Note This symbol denotes there is an active maintenance related warning in the module. ▲ Home Screen>Settings>Health Check The Health Check screen contains the following information: Thermo Scientific ● Status and Alarms: Allows the user to view the status and alarm menus. Menus are broken down according to modules where the user can view instrument readings, setpoints and alarms. ● Predictive Diagnostics: Smart module diagnostics, which shows possible future issues. ● Maintenance History: Allows the user to set up a maintenance schedule and track maintenance history. ● File Sharing and Support: File sharing via email. Support through Thermo Fisher Scientific technical support. ● Firmware Version: Shows the instrument’s firmware version. 48iQ Instruction Manual 3-45 Operation Settings Status and Alarms The Status and Alarms screen provides information with respect to module alarms. In each screen, instrument readings, setpoints, and low/high alarm values are displayed. If applicable, setpoints and alarms are also settable from the Settings>Instrument Settings screen. Note This symbol denotes there is an active alarm in the module. ▲ Home Screen>Settings>Health Check>Status and Alarms The Status and Alarms menu contains the following information: 3-46 48iQ Instruction Manual ● Concentration: Displays CO concentrations and alarms. ● NDIR Bench: Displays bench module alarms and faults. ● O2 Sensor: Displays O2 concentrations, sensor alarms and faults (if enabled). ● Flow and Pressure: Displays flow and pressure alarms and faults. ● Peripherals Support: Displays peripherals support alarms and faults. ● Valve and Pump Resets: User can reset valve and pump power. ● Analog Input/Output: Displays analog input/output alarms and faults. ● Digital Input/Output: Displays digital input/output alarms and faults. ● Serial Numbers: Displays all the serial numbers for the instrument. Thermo Scientific Operation Settings Concentration The Concentration screen provides status and alarms for CO concentration, background cal/checks, and span cal/checks. If an item being monitored goes outside the lower or higher alarm limit, an alarm is activated. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Status and Alarms>Concentration The Concentration screen contains the following information: ● ● Thermo Scientific Across: ● Concentration: This column lists items associated with the CO and concentrations. ● Value: Displays the current value for each item. ● Low Alarm: Displays low alarm status for each item. ● High Alarm: Displays high alarm status for each item. ● Span Conc: Span concentration used in the span calibration or span check. ● Units: Displays units for each item. Down: ● CO: CO concentration. ● Bkg Check Offset: Displays concentration based on the last attempted background calibration. High alarm shows user defined limit for acceptable background check offset. 48iQ Instruction Manual 3-47 Operation Settings ● Span Check Offset: Displays concentration based on the last attempted span calibration. High alarm shows user defined limit for acceptable span check offset (compared to the span concentration value). Span concentration shows span setpoint. Note If both the low alarm and high alarms are set to zero, then no alarm will show. ▲ 3-48 48iQ Instruction Manual Thermo Scientific Operation Settings NDIR Bench The NDIR Bench screen provides status and alarms related to the bench module. If an item being monitored goes outside the lower or higher alarm limit, an alarm is activated. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Status and Alarms>NDIR Bench The NDIR Bench screen contains the following information: ● ● Thermo Scientific Across: ● NDIR Bench: This column lists items associated with the NDIR bench module. ● Value: Displays the current value for each item. ● Low Alarm: Displays low alarm status for each item. ● High Alarm: Displays high alarm status for each item. ● Units: Displays units for each item. Down: ● S/R: Displays the current sample/reference reading. ● Sample Intensity: Displays the current sample intensity reading. ● Reference Intensity: Displays the current reference intensity reading. ● Bench Pressure: Displays the current bench pressure reading. ● Flow: Displays the current sample flow reading. ● Instrument Temperature: Displays the current instrument temperature reading. 48iQ Instruction Manual 3-49 Operation Settings 3-50 48iQ Instruction Manual ● Bench Temperature: Displays the current bench temperature reading. User can adjust low and high alarm limits. ● Bench Temperature too Low: Displays OK/Fail for bench temperature too low. ● Bench Temperature too High: Displays OK/Fail for bench temperature too high. ● Motor Speed too Low: Displays OK/Fail for motor speed too low. ● Motor Speed too High: Displays OK/Fail for motor speed too high. ● IR Source Current too Low: Displays OK/Fail for IR source current too low. ● IR Source Current too High: Displays OK/Fail for IR source current too high. ● IR Detector Bias too Low: Displays OK/Fail for IR detector bias too low. ● IR Detector Bias too High: Displays OK/Fail for IR detector bias too high. ● Bench Thermistor Open: Displays OK/Fail for bench thermistor open. ● Bench Thermistor Short: Displays OK/Fail for bench thermistor short. ● Module Thermistor Open: Displays OK/Fail for module thermistor open. ● Module Thermistor Short: Displays OK/Fail for module thermistor short. ● Board Communication: Displays OK/Fail for board communication status. ● Power Supply: Displays OK/Fail of power supplies. Power supply goes red if any voltages are outside their limits. No voltage rows ever get highlighted. ● 3.3V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 5.0V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 15V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 24V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. Thermo Scientific Operation Settings Thermo Scientific ● -15V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● Bias Voltage: Displays current voltage readings. Alarm limits are not changeable. 48iQ Instruction Manual 3-51 Operation Settings O2 Sensor The O2 Sensor screen provides status and alarms related to the O2 Sensor. If an item being monitored goes outside the lower or higher alarm limit, an alarm is activated. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Status and Alarms>O2 Sensor The O2 Sensor screen contains the following information: ● ● 3-52 48iQ Instruction Manual Across: ● O2 Sensor: This column lists items associated with the O2 sensor. ● Value: Displays the current value for each item. ● Low Alarm: Displays low alarm status for each item. ● High Alarm: Displays high alarm status for each item. ● Units: Displays units for each item. Down: ● Concentration: Displays the current O2 sensor concentration reading. User can adjust low and high alarm limits. ● Temperature: Displays the current module temperature reading. ● Temperature Open: Displays OK/Fail for temperature open. ● Temperature Short: Displays OK/Fail for temperature short. ● Sensor Element Function: Displays OK/Fail for sensor element function. ● Outside Operational Spec.: Displays OK/Fail for outside operational specification. Thermo Scientific Operation Settings Thermo Scientific ● Photodiode Current Too Low: Displays OK/Fail for Photodiode Current Too Low. ● Sensor Detected: Displays OK/Fail for sensor detected. ● Sensor Communication: Displays OK/Fail for sensor communication. ● Valid Calibration: Displays OK/Fail for valid calibration. ● Board Communication: Displays OK/Fail for board communication status. ● Power Supply: Displays OK/Fail of power supplies. Power supply goes red if any voltages are outside their limits. No voltage rows ever get highlighted. ● 2.5V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 3.3V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 5.0V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 24V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. 48iQ Instruction Manual 3-53 Operation Settings Flow and Pressure The Flow and Pressure screen provides status and alarms related to the flow and pressure module. If an item being monitored goes outside the lower or higher alarm limit, an alarm is activated. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Status and Alarms>Flow and Pressure The Flow and Pressure screen contains the following information: ● ● 3-54 48iQ Instruction Manual Across: ● Flow and Pressure: This column lists items associated with the flow and pressure module. ● Value: Displays the current value for each item. ● Low Alarm: Displays low alarm status for each item. ● High Alarm: Displays high alarm status for each item. ● Units: Displays units for each item. Down: ● Flow: Displays the current sample flow reading. User can adjust low and high alarm limits. ● Bench Pressure: Displays the current bench pressure reading. User can adjust low and high alarm limits. ● Pump Pressure: Displays the current pump pressure reading. ● Instrument Temperature: Displays the current instrument temperature reading. User can adjust low and high alarm limits. Thermo Scientific Operation Settings Thermo Scientific ● Board Communication: Displays OK/Fail for board communication status. ● Power Supply: Displays OK/Fail of power supplies. Power supply goes red if any voltages are outside their limits. No voltage rows ever get highlighted. ● 2.5V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 3.3V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 5.0V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 24V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. 48iQ Instruction Manual 3-55 Operation Settings Peripherals Support The Peripherals Support screen provides status and alarms related to the peripherals module. If an item being monitored goes outside the lower or higher alarm limit, an alarm is activated. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Status and Alarms>Peripherals Support The Peripherals Support screen contains the following information: ● ● 3-56 48iQ Instruction Manual Across: ● Peripherals Support: This column lists items associated with the peripherals support module. ● Value: Displays the current value for each item. ● Low Alarm: Displays low alarm status for each item. ● High Alarm: Displays high alarm status for each item. ● Units: Displays units for each item. Down: ● Module Temperature: Displays the current module temperature of the module. ● Sample Valve: Displays whether or not the sample valve is activated. ● Zero Valve: Displays whether or not the zero valve is activated. ● Span Valve: Displays whether or not the span valve is activated. ● Instrument Error: Displays OK/Fail for PCP, datalogging, streaming, serial server, and Modbus protocols. Thermo Scientific Operation Settings Thermo Scientific ● Board Communication: Displays OK/Fail for board communication status. ● Power Supply: Displays OK/Fail of power supplies. Power supply goes red if any voltages are outside their limits. No voltage rows ever get highlighted. ● 2.5V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 3.3V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 5.0V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 24V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 5.0V Step Board: Displays OK/Fail. ● 24V Step Board: Displays OK/Fail. 48iQ Instruction Manual 3-57 Operation Settings Valve and Pump Resets The Valve and Pump Resets screen allows the user to reset a valve or pump after a failure due to excessive amperage. Note This symbol denotes that the device needs to be reset. ▲ Note Resetting one valve will reset all valves. ▲ Home Screen>Settings>Health Check>Status and Alarms>Valve and Pump Resets The Valve and Pump Resets screen contains the following information: 3-58 48iQ Instruction Manual ● Sample Valve Reset: Resets sample valve. ● Zero Valve Reset: Resets zero valve. ● Span Valve Reset: Resets span valve. ● Pump Reset: Resets pump. Thermo Scientific Operation Settings Analog I/O The Analog I/O screen provides status and alarms related to the analog input/output module. If an item being monitored goes outside the lower or higher alarm limit, an alarm is activated. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Status and Alarms>Analog I/O The Analog I/O screen contains the following information: ● ● Thermo Scientific Across: ● Analog IO: This column lists items associated with the analog I/O. ● Value: Displays the current value for each item. ● Low Alarm: Displays low alarm status for each item. ● High Alarm: Displays high alarm status for each item. ● Units: Displays units for each item. Down: ● Voltage Output Channel 1–6: Displays real-time voltage output for each channel. ● Current Output Channel 1–6: Displays real-time current output for each channel. ● Chip Temperatures: Displays OK/Fail for chip temperatures. ● Chip 1–3 Communication: Displays OK/Fail for each chip communication. ● Test Mode: Displays test mode on or off. 48iQ Instruction Manual 3-59 Operation Settings 3-60 48iQ Instruction Manual ● Board Communication: Displays OK/Fail for board communication status. ● Power Supply: Displays OK/Fail of power supplies. Power supply goes red if any voltages are outside their limits. No voltage rows ever get highlighted. ● 3.3V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 5.0V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 5.0V Ref Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 15V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● -15V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. Thermo Scientific Operation Settings Digital I/O The Digital I/O screen provides status and alarms related to the digital input/output module. If an item being monitored goes outside the lower or higher alarm limit, an alarm is activated. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Status and Alarms>Digital I/O The Digital I/O screen contains the following information: ● ● Thermo Scientific Across: ● Digital IO: This column lists items associated with the digital I/O. ● Value: Displays the current value for each item. ● Reset: Resets item. ● Low Alarm: Displays low alarm status for each item. ● High Alarm: Displays high alarm status for each item. ● Units: Displays units for each item. Down: ● Solenoid 1–8: Displays whether or not the solenoid is activated by showing the current in mA. ● External Alarm 1–3: Displays OK/Fail for external alarms. ● Relay Test Mode: Displays relay test mode on or off. ● Solenoid Test Mode: Displays solenoid test mode on or off. ● Board Communication: Displays OK/Fail for communication status. 48iQ Instruction Manual 3-61 Operation Settings ● 3-62 48iQ Instruction Manual Power Supply: Displays OK/Fail of power supplies. Power supply goes red if any voltages are outside their limits. No voltage rows ever get highlighted. ● 3.3V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 5.0V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. ● 24V Diagnostic: Displays current voltage readings. Alarm limits are not changeable. Thermo Scientific Operation Settings Serial Numbers The Serial Numbers screen displays the serial number for each module. Home Screen>Settings>Health Check>Status and Alarms>Serial Numbers The Serial Numbers screen contains the following information: Thermo Scientific ● Instrument: Instrument serial number. ● NDIR Bench: NDIR bench serial number. ● O2 Sensor Board: O2 sensor board serial number. ● O2 Sensor: O2 sensor serial number. ● Flow and Pressure: Flow and pressure serial number. ● Peripherals Support: Peripherals support serial number. ● Analog I/O: Analog I/O serial number. ● Digital I/O: Digital I/O serial number. 48iQ Instruction Manual 3-63 Operation Settings Predictive Diagnostics The Predictive Diagnostics screen is a feature for instruments to anticipate maintenance needs, reduce downtime, and reduce troubleshooting time. If button is greyed out, no maintenance is needed. If button is blue, maintenance is suggested. Note This symbol denotes there is an active maintenance related warning in the module. ▲ Home Screen>Settings>Health Check>Predictive Diagnostics The Predictive Diagnostics screen contains the following information: 3-64 48iQ Instruction Manual ● Filter Wheel ● Sample Pump ● Capillary ● Flow Path ● IR Source ● Sample Valve ● Zero Valve ● Span Valve Thermo Scientific Operation Settings Maintenance The Maintenance screen reminds the user when certain instrument components need to be serviced/replaced. Note This symbol denotes there is an active maintenance alarm in the module. ▲ Home Screen>Settings>Health Check>Maintenance The Maintenance screen contains the following information: Thermo Scientific ● Preventive Maintenance: Shows suggested service interval and time left for component replacement. ● Change Part: User logs component fix. ● Maintenance History: Shows the log of all recorded component fixes. ● Advanced Maintenance: Resets all preventive maintenance items. 48iQ Instruction Manual 3-65 Operation Settings Preventive Maintenance The Preventive Maintenance screen reminds the user when certain instrument components need to be serviced/replaced. When the “Months Left” has decreased to 1, the row is highlighted yellow. If the “Months Left” is 0 or less, the row is highlighted red and the maintenance icon (gears) will appear in the status bar located at the bottom of the screen. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Maintenance>Preventive Maintenance The Preventive Maintenance screen contains the following information: ● 3-66 48iQ Instruction Manual Across: ● Component: Device to be routinely serviced or replaced. ● Interval in Months: Expected period of time before a component needs to be checked and/or serviced. User settable. ● Months Left: Count down timer in months. Remaining time since the beginning of the service interval. When the value is 1 or less, the row will be highlighted and it is suggested that the component should be checked and/or serviced. ● Reset: Once the component is serviced/replaced, the user presses the Reset button and the “Months Left” value resets to the “Service Interval in Months” value. ● Alert: Allows the user to opt out of receiving preventive maintenance alerts. Displays Enabled/Disabled for each component. Thermo Scientific Operation Settings ● Down: ● ● Thermo Scientific Optical Bench Module: Service interval for optical bench module components. ● IR Source: Service interval for IR source. ● Filter Wheel: Service interval for filter wheel. ● Detector: Service interval for detector. ● Chopper Motor: Service interval for chopper motor. ● Optical Switch: Service interval for optical switch. Flow System: Service interval for the flow system components. ● Capillaries: Service interval for capillaries. ● Pump: Service interval for pump. ● DC Power Supply: Service interval for DC power supply. ● Fan Filter: Service interval for fan filter. ● System Components: Service interval for system components. ● Purafil: Service interval for purafil. ● Charcoal: Service interval for charcoal. ● Dri-Rite: Service interval for dri-rite. 48iQ Instruction Manual 3-67 Operation Settings Change Part The Change Part screen allows the user to enter the component being serviced and the type of fix. Pressing commit will update the preventive maintenance table and predictive diagnostics screen when applicable. Home Screen>Settings>Health Check>Maintenance>Change Part The Change Part screen contains the following information: 3-68 48iQ Instruction Manual ● Select Part: User selects part to service from the selection table. ● Fix: User chooses from new, rebuilt, cleaned, and unknown. ● Comment: User can write a brief comment, which will be saved to the preventive maintenance history table. ● Commit: User commits and saves the selected part fix. Thermo Scientific Operation Settings Maintenance History The Maintenance History screen allows the user to view when components were replaced, rebuilt, or cleaned. When a user changes a part in the change part screen, a new row will be automatically created at the top in the maintenance history table. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Health Check>Maintenance>Maintenance History Note Pressing the Maintenance History button responds with Retrieving maintenance history data, it may take a few seconds... ▲ The Maintenance History screen contains the following information: Thermo Scientific ● Part: Component that has been fixed. ● Fix: The type of maintenance. ● Date: Shows date/time when service was logged. ● Service Months: Amount of time in months since last service. ● Comments: Shows comments entered from time of change. 48iQ Instruction Manual 3-69 Operation Settings Advanced Maintenance The Advanced Maintenance screen resets all preventive maintenance items. Home Screen>Settigs>Health Check>Maintenance>Advanced Maintenance 3-70 48iQ Instruction Manual Thermo Scientific Operation Settings File Sharing and Support The File Sharing and Support screen allows the user to download health check reports, email send health check report files to Thermo Fisher Scientific technical support or user emails, enable iQ360 feature, and request a field service visit. The Health Check Report file includes: Status and Alarms, PM Alerts, Activity Log, Service Database, Cal History, and Data Log (last 24 hours). Note To create email list, go to Settings>User Contact Information. To configure email, go to Settings>Communications>Email Server (SMTP). ▲ Home Screen>Settings>Health Check>File Sharing and Support The File Sharing and Support screen contains the following information: Thermo Scientific ● Download Health Check Report to USB Drive: Sends the health check report to USB drive. ● Email Health Check Report File to Technical Support: Sends the health check report file to technical support and the customer email addresses via email. ● Email Health Check Report to Personal Account: Sends the health check report file to a personal account via email. ● iQ360: The iQ360 feature is a paid subscription enabling or disabling the instrument to send automated emails to technical support when an alarm or alert is triggered. ● Request a Field Service Visit: Sends a field service visit to technical support. 48iQ Instruction Manual 3-71 Operation Settings Measurement Settings The Measurement Settings menu contains a number of submenus where instrument parameters and settings can be read and modified. The following screens show the measurement settings in single range mode and dual or auto range mode. In the dual and auto range modes, both the “High Range” or “Low Range ” buttons averaging buttons will be available. Home Screen>Settings>Measurement Settings (single range mode) Home Screen>Settings>Measurement Settings (dual or auto range mode) The Measurement Setting menu contains the following information: 3-72 48iQ Instruction Manual ● Averaging Time: Sets the averaging time for the CO sample measurement and O2 sample measurement (if option is enabled). ● Range Mode Selection: User can choose between the various range modes: single, dual, or auto. For more information, see “Range Mode Selection” on page 3-76 ● Range Setting: Sets the concentration range for the analog outputs when in single range mode. Thermo Scientific Operation Settings Thermo Scientific ● High Range Setting: Sets the high range concentration range for the analog output when in dual or auto range mode. ● Low Range Setting: Sets the low range concentration for the analog output when in dual or auto range mode. ● Gas Mode: User can manually choose sample, zero or span mode. ● Gas Units: Defines the units in which CO concentration reading is expressed. ● Dilution Ratio: Serves as a multiplier when dilution gas is utilized. ● Advanced Measurement Settings: Advanced settings affecting CO readings. 48iQ Instruction Manual 3-73 Operation Settings Averaging Time The Averaging Time screen allows the user to choose dynamic filtering or a manually selected (static) averaging time. Averaging Time defines the time period (1 to 300 seconds) during which CO measurements are taken. The average concentration of the readings are calculated for that time period. The front panel display and analog outputs are updated every second if averaging time is greater than 1 second. An averaging time of 10 seconds, for example, means that the average concentration of the last 10 seconds will be displayed at each update. An averaging time of 300 seconds means that the moving average concentration of the last 300 seconds will be the output at each update. Therefore, the lower the averaging time the faster the front panel display and analog outputs respond to concentration changes. Longer averaging times are typically used to smooth output data. Dynamic Filtering allows for data smoothing without compromising response time. Automatically changes the averaging time giving the user faster response times when conditions are rapidly changing; smoother and stable readings, when conditions aren’t changing as rapidly; and as an added bonus, it better processes spikes to minimize their impact on the data. At the same time it will preserve the representative nature of the filtered data to the conditions being sampled. Note When Dynamic Filtering is selected, the user selected Averaging Time button is disabled. ▲ Home Screen>Settings>Measurement Settings>Averaging time (single range mode and O2 option) 3-74 48iQ Instruction Manual Thermo Scientific Operation Settings Home Screen>Settings>Measurement Settings>Averaging Time (dual or auto range mode and O2 option) The Averaging Time screen contains the following information: Thermo Scientific ● Dynamic Filtering: Enables/disables dynamic filtering when in single range mode. ● High Range Dynamic Filtering: Enables/disables high range dynamic filtering when in dual or auto range mode. ● Low Range Dynamic Filtering: Enables/disables low range dynamic filtering when in dual or auto range mode. ● Averaging Time: Sets averaging time period in single range mode and when dynamic filtering is disabled. ● High Range Averaging Time: Sets high averaging time when in dual or auto range mode and when dynamic filtering is disabled. ● Low Range Averaging Time: Sets low averaging time when in dual or auto range mode and when dynamic filtering is disabled. ● O2 Averaging Time: Sets O2 averaging time if the O2 sensor is enabled. 48iQ Instruction Manual 3-75 Operation Settings Range Mode Selection The Range Mode Selection screen is used to switch between the various range modes: Single, Dual, and Auto Range. Home Screen>Settings>Measurement Settings>Range Mode Selection The Range Mode Selection screen contains the following information: ● Single: In single range mode, there is one range, one averaging time, and one span coefficient. ● Dual: In the dual range mode, there are two independent analog outputs. These are labeled simply as the “High Range” and the “Low Range”. Each channel has its own analog output range setting, averaging time, and span coefficient. This enables the sample concentration reading to be sent to the analog outputs at two different ranges. For example, the low CO analog output can be set to output concentrations from 0 to 50 ppm and the high CO analog output set to output concentrations from 0 to 100 ppm. In addition, when in dual or auto range mode, each CO analog output has a span coefficient so that each range can be calibrated separately. This is especially necessary if the two ranges are not close to one another. For example, the low CO range is set to 0–50 ppm and the high CO range is set to 0–10,000 ppm. ● Auto: The auto range mode switches the CO analog outputs between high and low range settings, depending on the concentration level. The high and low ranges are defined in the Range Settings menu. For example, suppose the low range is set to 50 ppm and the high range is set to 100 ppm. Sample concentrations below 50 ppm are output based on low range selection and sample concentrations above 50 ppm are output based on high range selection. When the low range 3-76 48iQ Instruction Manual Thermo Scientific Operation Settings is active, the range mode selection status output is at 0 volts. When the high range is active, the range mode selection status output is at half of full-scale. When the high range is active, the concentration must drop to 95% of the low CO range for the low range to become active. In addition, each CO range and analog output has a span coefficient so that each range can be calibrated separately. This is especially necessary if the two ranges are not close to one another. For example, the low CO range is set to 0–50 ppm and the high CO range is set to 0–10000 ppm. Note When using auto range mode, the high and low ranges should not vary by more than 1 order of magnitude. For instance, if the low range is set to 20 ppm, then the high range should be set to no more than 200 ppm. This is because the concentration response is non-linear and it is possible that the low range readings could become unpredictable above the top of the low range, resulting in a substantial jump in concentration readings when switching between ranges. One possible fix for this would be to perform the multipoint (3-point) calibration on both ranges and make sure that the low range high point matches or is greater than the high range low point. This will ensure that the high and low range concentration curves will overlap. If both of these methods are unacceptable due to local regulations, then the dual range mode should be used so that the range selection may be evaluated by the user to meet their regulations. ▲   Thermo Scientific 48iQ Instruction Manual 3-77 Operation Settings Range Setting The Range Setting button defines the concentration range of the analog outputs. For example, a CO range of 0–50 ppm restricts the analog output to concentrations between 0 and 50 ppm. The Range Setting button shows the current CO range. The range setting button is similar for the single, dual, and auto range modes. The only difference are the words “High” or “Low” displayed to indicate which range is displayed. For more information about the dual and auto range modes, see “Range Mode Selection” on page 3-76. Pressing Range Setting, High Range Setting or Low Range Setting, brings up a numeric keypad whereby the user can select a range. Settable ranges according to unit selection include: 3-78 48iQ Instruction Manual ppb 5010,000,000 ppb ppm 110,000 ppm % 5e-61 % μg/m3 5010,000,000 μg/m3 mg/m3 110,000 mg/m3 g/m3 0.00110 g/m3 Thermo Scientific Operation Settings Gas Mode The Gas Mode screen defines what gas mode the instrument is set to. Home Screen>Settings>Measurement Settings>Gas Mode The Gas Mode screen contains the following information: Thermo Scientific ● Sample: Sets the instrument to measure sample gas. ● Zero: Used when calibrating the background of the instrument. When pressed, sets the instrument to zero mode. ● Span: Used when calibrating the span coefficient. When pressed, sets the instrument to span mode. 48iQ Instruction Manual 3-79 Operation Settings Gas Units The Gas Units screen defines how the CO concentration reading is expressed. The μg/m3, mg/m3, and g/m3 gas concentration modes are calculated using a standard pressure of 760 mmHg and a standard temperature of 0 °C. Home Screen>Settings>Measurement Settings>Gas Units The Gas Units screen contains the following information: 3-80 48iQ Instruction Manual ● ppb: parts per billion. ● ppm: parts per million. ● %: percent. ● μg/m3: micrograms per meter cubed. ● mg/m3: milligrams per meter cubed. ● g/m3: grams per meter cubed. Thermo Scientific Operation Settings Advanced Measurement Settings The Advanced Measurement Settings screen allows the user to calibrate the optical bench and set other advanced settings. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings The Advanced Measurements Settings menu contains the following information: Thermo Scientific ● Optical Bench Settings: User sets the detector gain and S/R initial value. This can be done manually or automatically. ● Compensation: Allows the user to compensate for changes in temperature, pressure, and oxygen concentration (if enabled). ● Pressure Calibration: Calibrates pressure. 48iQ Instruction Manual 3-81 Operation Settings Optical Bench Settings The Optical Bench Settings screen allows the user to manually or automatically set the detector gain and initial S/R (sample/reference) value. The S/R value should be calibrated prior to other instrument calibrations. For more information, see Chapter 4, “Calibration”. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings>Continue to Detector Gain Calibration The Detector Gain Calibration screen contains the following information: ● 3-82 48iQ Instruction Manual Across: ● Description: Defines the actions the user can do. ● Detector Gain: User can manually set or automatically calibrate the detector gain. Thermo Scientific Operation Settings ● ● Current Sample Int. (Hz): Displays the current sample intensity in Hz. ● Current Reference Int. (Hz): Displays the current reference intensity in Hz. Down: ● Manual Entry: Shows current values. If detector gain cell is pressed, user can manually set the detector gain value. ● Auto Cal: When Start is pressed, the auto-calibration process is initiated. Please allow up to 5 minutes for calibration to complete. User can stop calibration by pressing the Stop button. ● End Cal: When Stop is pressed, the auto calibration is interrupted and the value does not change. ● Default Values: When pressed, the default gain value is saved. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings>Continue to Initial S/R Calibration The Initial S/R Calibration screen contains the following information: ● ● Across: ● Description: Defines the actions the user can do. ● Initial S/R.: Displays the initial S/R value. ● Current S/R.: Displays the current S/R value. Down: ● Thermo Scientific Manual Entry: Shows current value. If the initial S/R cell is pressed, user can manually set the initial S/R value. The instrument should be sampling zero gas when changing the S/R. 48iQ Instruction Manual 3-83 Operation Settings 3-84 48iQ Instruction Manual ● Auto Cal: When Start is pressed, the auto-calibration process is initiated. Please allow up to 5 minutes for calibration to complete. User can Stop calibration by pressing the Stop button. ● End Cal: When pressed, the auto calibration is interrupted and the value does not change. ● Default Values: When pressed, the default S/R value is saved. Thermo Scientific Operation Settings Compensation The Compensation screen provides compensation for any changes to the instrument’s output signal due to internal instrument temperature, pressure, and oxygen variations (if O2 sensor is installed). Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Compensation The Compensation screen contains the following information: Thermo Scientific ● Temp Compensation: Toggles temperature compensation enabled or disabled and provides compensation for any changes to the instrument's output signal due to internal instrument temperature variations. The effects of internal instrument temperature changes on the analyzer's subsystems and output have been empirically determined. This empirical data is used to compensate for any changes in temperature. ● Pressure Compensation: Toggles pressure compensation enabled or disabled and provides compensation for any changes to the instrument's output signal due to bench pressure variations. The effects of bench pressure changes on the analyzer's subsystems and output have been empirically determined. This empirical data is used to compensate for any change in bench pressure. ● O2 Correction: Allows for the correction of the CO concentration based on O2 readings. 48iQ Instruction Manual 3-85 Operation Settings O2 Correction When O2 correction is enabled, the following equation is applied to the concentration value to generate a corrected value. The corrected value may be output on the analog outputs, stored in logging memory, or output as streaming data. The corrected values are not displayed on the Home Screen on the front panel, only the non-corrected values.  20.9  O 2corr  Ccomp @ O 2corr  C *    20.9  O 2meas  Abbreviations: C is the measured concentration, O2corr is the oxygen concentration that C is corrected to (this value is set by the user in the Source O2 Concentration Setpoint screen and defaults to 15%). O2meas is the measured O2 concentration, which is clamped at 20.8% to prevent divide-by-zero errors. Ccomp is the corrected concentration that may be used for analog outputs or datalogging. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Compensation>O2 Correction (single range mode) 3-86 48iQ Instruction Manual Thermo Scientific Operation Settings Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Compensation>O2 Correction (dual or auto range mode) The Compensation screen contains the following information: Thermo Scientific ● Source O2 Concentration Setpoint: User enters expected O2 concentration. ● Current O2 Concentration: Read only. Displays current O2 reading. ● Corrected CO Concentration: Read only. Displays the corrected CO concentration when in single range mode. ● Corrected High Range CO Concentration: Read only. Displays the corrected high range CO concentration when in dual or auto range mode. ● Corrected Low Range CO Concentration: Read only. Displays the corrected low range CO concentration when in dual or auto range mode. 48iQ Instruction Manual 3-87 Operation Settings Pressure Calibration The Pressure Calibration screen is used to calibrate the pressure sensor to zero, span, or factory default values. Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Pressure Calibration The Pressure Calibration screen contains the following information: ● ● Across: ● Description: Lists items in table. ● Reading: Displays reading of each pressure sensor. ● Calibration: Starts calibration or resets default values. Down: ● ● ● ● 3-88 48iQ Instruction Manual Sensor 13 Reading: Under the column labeled Reading, current reading of each pressure sensor. Atmospheric Sensor 13: Under the column labeled reading, the user enters the current atmospheric pressure in mmHg units. Under the column labelled Calibration, the user presses the Start button to calibrate the high point of the sensor. Zero Sensor 13: User should put the pressure sensor under a strong vacuum. Under the column labeled reading, the user enters the pressure in mmHg. Under the column labeled Calibration, the user presses the Start button to calibrate the low point of the sensor. Reset all values: Resets values to default. Thermo Scientific Operation Settings Communications The Communications screen allows the user to set TCP/DHCP parameters, Serial settings, Analog I/O and Digital I/O, Email Server, and Instrument ID. Buttons are grayed out if not selected in Settings>Configuration. Home Screen>Settings>Communications The Communications screen contains the following information: Thermo Scientific ● Wired TCP/DHCP: Settings for communicating with the instrument through wired Ethernet. ● Serial RS-232/485: Settings for communicating with the instrument through RS-232/485 protocol. This is only visible if selected in Settings>Configuration>Communications Board. ● Analog I/O: Settings for communicating with the instrument through analog I/O settings. This is only visible if selected in Settings>Configuration>Analog I/O. ● Digital I/O: Settings for communicating with the instrument through digital I/O settings. This is only visible if selected in Settings>Configuration>Digital I/O. ● Email Server (SMTP): Settings for communication with email. ● Instrument ID: Allows the user to edit the instrument identification number (ID). The ID is used to identify the instrument when using protocols to control the instrument or collect data. It may be necessary to edit the ID number if two or more of instruments of the same model are connected to one computer. Valid instrument ID numbers are from 0 to 127. The 48iQ has a default instrument ID of 1. 48iQ Instruction Manual 3-89 Operation Settings Wired TCP/DHCP The Wired TCP/DHCP screen allows the user to communicate with the instrument via wired TCP/IP settings. Note When DHCP is enabled, the dynamic IP address is used. When DHCP is disabled, the static IP address is used. ▲ Home Screen>Settings>Communications> Wired TCP/DHCP (with DHCP enabled) Home Screen>Settings>Communications>Wired TCP/DHCP (with DHCP disabled) The Wired TCP/DHCP screen contains the following information: 3-90 48iQ Instruction Manual ● DHCP: Toggles DHCP enabled/disabled. ● Dynamic IP Address: Dynamic IP address of the instrument. ● Dynamic Netmask: Dynamic Netmask of instrument. ● Dynamic Gateway: Dynamic Gateway of instrument. Thermo Scientific Operation Settings Thermo Scientific ● Static IP Address: Static IP address of the instrument. This is settable when DHCP is disabled. ● Static Netmask: Static Netmask of instrument. This is settable when DHCP is disabled. ● Static Gateway: Static Gateway of instrument. This is settable when DHCP is disabled. ● DNS Server Address: DNS IP address of instrument. This is settable when DHCP is disabled. ● Wired MAC Address: Instrument MAC address. ● Host Name: Host name of instrument. 48iQ Instruction Manual 3-91 Operation Settings Serial RS-232/485 The Serial RS-232/485 screen allows the user to setup serial communication. This is only visible if selected in Settings>Configuration>Communications Board. Home Screen>Settings>Communications>Serial RS-232/485 The Serial RS-232/485 screen contains the following information: 3-92 48iQ Instruction Manual ● Protocol: User selects Modbus or Streaming. ● Baud Rate: User selectable baud rates from 1200 to 115200. ● Bits: User selectable between 7 and 8. ● Parity: User selectable between None, Even, and Odd. ● Stop Bits: User selectable between 1 and 2. ● RS 232/485: User selectable between RS-232 and RS-485. Thermo Scientific Operation Settings Analog I/O The Analog I/O screen allows for configuring the analog inputs/outputs. This is only visible if selected in Settings>Configuration>Analog I/O. Home Screen>Settings>Communications>Analog I/O The Analog I/O screen contains the following information: Thermo Scientific ● Analog In: Allows the user to view and calibrate voltage inputs from external devices. ● Analog Out (Voltage): Allows the user to view voltage outputs. ● Analog Out (Current): Allows the user to view current (mA) outputs. ● Analog Out Under/Over Range Enabled/Disabled: Allows the user to select whether or not the analog outputs are allowed to exceed the selected output range. 48iQ Instruction Manual 3-93 Operation Settings Digital I/O The Digital I/O screen allows for configuring the digital inputs/outputs. This is only visible if selected in Settings>Configuration>Digital I/O. Home Screen>Settings>Communications>Digital I/O The Digital I/O screen contains the following information: 3-94 48iQ Instruction Manual ● Digital In: Allows the user to view digital inputs from external devices. ● Digital Out (Relays): Allows the user to view relay outputs. ● Digital Out (Solenoids): Allows the user to view solenoid outputs. ● Advanced Digital I/O: Allows user to test the digital out relays and solenoids. Thermo Scientific Operation Settings Email Server (SMTP) The Email Server (SMTP) screen allows the user to configure their email preferences. Home Screen>Settings>Communications>Email Server (SMTP) The Email Server (SMTP) screen contains the following information: Thermo Scientific ● SMTP Server Address: Address of the user’s email server. ● From Email Address: The email address that goes in the From field in emails. ● SMTP Server Port: Server port of user’s email server. ● Email Password: Password for SMTP server. ● Email UserName: User name that is authorized to send email through SMTP server. 48iQ Instruction Manual 3-95 Operation Settings Instrument Settings The Instrument Settings screen allows the user to configure various instrument settings. Home Screen>Settings>Instrument Settings The Instrument Settings screen contains the following information: 3-96 48iQ Instruction Manual ● Display Setup: Sets touchscreen display settings. ● Alarm Setpoints: View and set all available alarm setpoints. ● Language: Read only. ● Clock: Sets date and time. ● Pump Power: Manually enables/disables the pump. Thermo Scientific Operation Settings Display Setup The Display Setup allows the user to change the brightness of the display and choose power save option. Home Screen>Settings>Instrument Settings>Display Setup The Display Setup screen contains the following information: Thermo Scientific ● Power Save: Minutes before screen times out. Toggles enable/disable. ● Power Save Setting: Option whereby the user can display a black screen after a set amount of inactivity. ● Brightness: Sets the brightness of the display. 48iQ Instruction Manual 3-97 Operation Settings Alarm Set Points The Alarm Setpoints screen allows the user to view and set all settable alarm minimum and maximum values. Alarm setpoints can also be set in Settings>Health Check>Status and Alarms screens. Note User cannot set alarm limits outside of the acceptable range. The minimum and maximum alarm limit can also be set by pressing on the corresponding buttons located in the Settings>Health Check>Status and Alarms screen. See “Status and Alarms” on page 3-46. ▲ Use the  and  buttons to move up and down and the  and  buttons to move left and right. Home Screen>Settings>Instrument Settings>Alarm Setpoints The Alarm Setpoints screen contains the following information: ● ● 3-98 48iQ Instruction Manual Across: ● Item: Lists the items that have settable alarm limits. ● Value: Displays the current value for each item. ● Low Alarm: User sets low alarm for item. ● High Alarm: User sets high alarm for item. ● Units: Units for each item (not settable). Down: ● CO: CO concentration alarm. ● Bkg Check Offset: User can set the maximum allowable background reading offset for calibration and calibration checks. This is set with the high alarm only. Thermo Scientific Operation Settings Thermo Scientific ● Span Check Offset: User can set the maximum allowable span reading offset for calibration and calibration checks. This is set with the high alarm only. ● Instrument Temperature: Instrument temperature alarm. ● Bench Pressure: Bench temperature alarm. ● Flow: Flow pressure alarm. ● O2 concentration: O2 concentration alarm (if enabled). 48iQ Instruction Manual 3-99 Operation Settings Clock The Clock screen allows the user to set the instrument’s date and time, choose date/time format, time zone, and time server. Home Screen>Settings>Instrument Settings>Clock The Clock screen contains the following information: 3-100 48iQ Instruction Manual ● Month ● Day ● Year ● Hours ● Minutes ● Seconds ● Date / Time Parameters: User chooses time zone, timer server, and date format. ● Commit: When pressed, date and time are saved. Thermo Scientific Operation Settings Date / Time Parameters The Date / Time Parameters screen allows the user to choose time zone, time server and date format. Home Screen>Settings>Instrument Settings>Clock>Date / Time Parameters The Date / Time Parameters screen contains the following information: Thermo Scientific ● Time Zone: User selects time zone from table. ● Time Server Enabled/Disabled: User can enabled/disable the time server to get periodic clock updates. ● Date Format: User selects date format. 48iQ Instruction Manual 3-101 Operation Settings Time Zone The Time Zone screen allows the user to set the time zone for the Network Time Protocol (NTP) server. This should be set to the time zone that the instrument is located in. Use the  and  buttons to move up and down. Home Screen>Settings>Instrument Settings>Clock>Date / Time Parameters>Time Zone The Time Zone screen contains the following information: 3-102 48iQ Instruction Manual ● Date Line West(UTC-12) ● Samoa Time Zone(UTC-11) ● Aleutian Time Zone(UTC-10) ● Alaskan Time Zone(UTC-9) ● Pacific Time Zone(UTC-8) ● Pacific Daylight Savings(UTC-7) ● Mountain Time Zone(UTC-7) ● Mountain Daylight Savings(UTC-6) ● Central Time Zone(UTC-6) ● Central Daylight Savings((UTC-5) ● Eastern Time Zone(UTC-5) ● Eastern Daylight Savings(UTC-4) ● Atlantic Time Zone(UTC-4) ● Mid-Atlantic(UTC-3) ● South Georgia(UTC-2) Thermo Scientific Operation Settings Thermo Scientific ● Cape Verde Time(UTC-1) ● Coordinated Universal Time(UTC-0) ● Central European Time(UTC+1) ● Eastern European Time(UTC+2) ● Further-Eastern European Time(UTC+3) ● Gulf Standard Time(UTC+4) ● Yekaterinburg Time(UTC+5 ● Omsk Time(UTC+6) ● Indochina Time(UTC+7) ● ASEAN Common Time(UTC+8) ● Japan Standard Time(UTC+9) ● Chamorro Time Zone(UTC+10) ● Sredmnekolymsk Time(UTC+11) ● New Zealand Standard Time(UTC+12) 48iQ Instruction Manual 3-103 Operation Settings Time Server The Time Server screen allows the user to enable/disable the time server to get periodic clock updates. Home Screen>Settings>Instrument Settings>Clock>Date / Time Parameters>Time Server The Time Server screen contains the following information: 3-104 48iQ Instruction Manual ● Time Server: Enables/Disables periodic clock updates from an NTP (Network Time Protocol) source. ● Set Time Server: User can choose specific time server. ● Set Default: When pressed, default time server will be used. Thermo Scientific Operation Settings Date Format The Date Format screen allows the user to choose from the following formats: mm/dd/yyyy or dd/mm/yyyy. Use the  and  buttons to move up and down. Home Screen>Settings>Instrument Settings>Clock>Date / Time Parameters>Date Format The Date Format screen contains the following information: Thermo Scientific ● U.S. Format mm/dd/yyyy ● European Format dd/mm/yyyy ● ISO 8601 yyyy-mm-dd 48iQ Instruction Manual 3-105 Operation Settings Configuration The Configuration screen allows the user to enable optional features. If an option is disabled, the corresponding buttons will be grayed out and the screens will not be available. Use the  and  buttons to select the variables. Next, press the Commit Changes button to save selections. Yellow buttons indicate that the variable is selected. More than one can be chosen. Home Screen>Settings>Configuration The Configuration screen contains the following information: 3-106 48iQ Instruction Manual ● Zero/Span Assembly: Enables zero/span option. ● Oxygen Sensor: Enables O2 sensor option. ● Predictive Diagnostics: Enables predictive diagnostics option. ● Communications Board: Enables RS-232 or RS-485 communication board option. ● Analog I/O: Enables analog I/O option. ● Digital I/O: Enables digital I/O option. Thermo Scientific Operation Settings Security Access Levels The Access Levels screen allows the user to set the instrument to either View Only or Full Access. When in Full Access, the user will have access to all screens. When set to View Only, user will not be able to change any values. Home Screen>Settings>Security Access Levels (Full Access) Home Screen>Settings>Security Access Levels (View Only Access) The Security Access Levels screen contains the following information: Thermo Scientific ● Current Security Access Full Access: Read only. User will be able to change all values. Password is needed for full access. ● Current Security Access View Only: Read only. User won’t be able to change any values. Password is not needed for view only. ● Change Security Access to View Only: User can switch to view only mode. Password not needed to change settings to view only access. ● Change Security Access to Full Access: User can switch to full access mode. Password is needed to change settings to full access. 48iQ Instruction Manual 3-107 Operation Settings ● 3-108 48iQ Instruction Manual Change Full Access Security Password: Full access password can have a blank value or user selected password. Thermo Scientific Operation Settings Change Security to View Only Access The Change Security to View Only Access screen allows the user to set the instrument to view only. Home Screen>Settings>Security Access Levels>Change Security Access to View Only Access The Change Security to View Only Access screen contains the following information: ● Set Access Level to View Only: Programs the instrument to be in the view only access level, where the user won’t be able to change any values. ● Cancel: Exit screen. Note To change security access from view only access to full access, a keypad will be displayed where the user can enter full access password. ▲ Thermo Scientific 48iQ Instruction Manual 3-109 Operation Settings Change Full Access Security Password The Change Full Access Security Password screen allows the user to set a new password for allowing full access. Home Screen>Settings>Security Access Levels>Change Full Access Security Password Home Screen>Settings>Security Access Levels>Change Full Access Security Password>Continue 3-110 48iQ Instruction Manual Thermo Scientific Operation Settings The Change Full Access Security Password screens contain the following information: Thermo Scientific ● Enter Current Security Password: User enters current security password. Default password is blank. ● Continue: Proceeds to next screen. ● Enter New Security Access Password: User enters new security password. ● Confirm New Security Access Password: User confirms new security password for spelling confirmation. ● Commit New Security Access Password Change: Commits new security password. ● Cancel and Return to the Home Screen: Exits screen and returns to the Home Screen without changing password. 48iQ Instruction Manual 3-111 Operation Settings USB Drive The USB Drive screen allows the user to update firmware, download/upload information, and change the USB password. Note The USB drive screen only is useable when a USB drive is inserted into the USB port. When a USB drive is inserted, the user is prompted to enter the password if a password has been set. ▲ Home Screen>Settings>USB Drive The USB Drive screen contains the following information: 3-112 48iQ Instruction Manual ● Firmware Update Via USB Drive: If USB is mounted, user can update instrument firmware. ● Download Data To USB Drive: If USB is mounted, user can download/upload information. ● Change USB Password: User can change the USB password. Thermo Scientific Operation Settings Firmware Update Via USB Drive The Firmware Update Via USB Drive screen allows the user to update instrument firmware from the USB drive. Home Screen>Settings>USB Drive>Firmware Update Via USB Drive The Firmware Update Via USB Drive screen contains the following information: Thermo Scientific ● Update Firmware: User chooses firmware file from USB and updates instrument firmware. Instrument reboots when update is finished. ● Exit: User exits without updating firmware. 48iQ Instruction Manual 3-113 Operation Settings Download Data To USB Drive The Download Data To USB Drive screen allows the user to download/upload data to/from the USB drive. Home Screen>Settings>USB Drive>Download Data To USB Drive The Download Data to USB Drive screen contains the following information: 3-114 48iQ Instruction Manual ● Download Health Check Report: Includes status and alarms, preventive maintenance, and maintenance history. ● Download Entire Data Log: Includes the entire data log (from data logging). ● Download Service Log: Includes a complete listing of data for all variables. This is set at the factory. ● Download System Log: Consists of system log text files, which include a listing of system errors. ● Download Calibration History: Includes the data in the calibration history screen. ● Download Configuration Data Backup to USB: Allows the user to download the configuration file from the instrument to the USB. ● Restore: Allows the user to upload the configuration files from the USB to the instrument. ● Download All Data: Downloads all reports, logs, histories, and backup information. Thermo Scientific Operation Settings Use the following procedure to download data using the USB connection. 1. Plug a flash drive into the USB connection on the front of the instrument. If a USB password has been previously set, you will be prompted to enter the USB password to continue. Press Enter to continue. 2. To continue, select the OK button. 3. The USB Drive will display. Select Download Data To USB Drive. Thermo Scientific 48iQ Instruction Manual 3-115 Operation Settings 4. The Download Data to USB Drive screen will display. Select from various options to download. 5. The instrument will display a “downloading data” message and begin transferring data to the USB drive. Note Do not remove the USB drive from the instrument while the data is downloading. ▲ 6. When the data download is complete, the instrument will display a “Success!” message and display the file name as it is stored on the USB flash drive. (The file name format is the instrument serial number, name of download, followed by a date/time stamp.) Remove the USB flash drive and select the OK button to continue. 3-116 48iQ Instruction Manual Thermo Scientific Operation Settings Change USB Password The Change USB Password screen allows the user to set a new password for accessing USB. Home Screen>Settings>USB Drive>Change USB Password Home Screen>Settings>Security Access Levels>Change Standard Access Password>Continue Thermo Scientific 48iQ Instruction Manual 3-117 Operation Settings The Change USB Password screens contain the following information: 3-118 48iQ Instruction Manual ● Enter Current USB Password: User enters current USB password. Default password is blank. ● Continue: Proceeds to next screen. ● Enter New USB Password: User enters new USB password. ● Confirm New Security Access Password: User confirms new security password for spelling confirmation. ● Commit New USB Password Change: Commits new USB password. ● Cancel and Return to the Home Screen: Exits screen and returns to the Home Screen without changing password. Thermo Scientific Operation Settings User Contact Information The User Contact Information screen allows the user to enter their contact information. This is useful when contacting technical support through emails found at the screen Health Check>File Sharing and Support. Home Screen>Settings>User Contact Information The User Contact Information screen contains the following information: Thermo Scientific ● Business Name ● User Name ● Alternate User Name ● User ID ● Business Address ● Business Shipping Address ● To: User Email Address ● CC: User Email Address 110 ● User Phone Number ● Alternate User Phone Number ● Shelter / Lab Phone Number 48iQ Instruction Manual 3-119 Operation Settings Update Bootloader The Update Bootloader screen allows the user to update bootloader and reboot the instrument. If the button is blue, an update to the bootloader is available. If button is greyed out, no update is needed. Home Screen>Settings>Update Bootloader The Update Bootloader screen contains the following information: 3-120 48iQ Instruction Manual ● Reboot and Update: Update bootloader and reboot instrument. ● Exit: Exits screen. Thermo Scientific Chapter 4 Calibration This chapter describes the procedures for performing a standard zero/span calibration and a multipoint calibration of the 48iQ. The information described here is more than adequate to perform the calibration. However, if greater detail is needed, please refer to the Quality Assurance Handbook for Air Pollution Measurement Systems1. The following sections discuss the required apparatus and procedure for calibrating the instrument. Equipment Required CO Concentration Standard The following equipment is required to calibrate the instrument: A cylinder of CO in air containing an appropriate concentration of CO suitable for the selected operating range of the analyzer under calibration is necessary. The assay of the cylinder must be traceable either to a National Institute of Standards and Technology (NIST) CO in Air Standard Reference Material (SRM) or an NIST/EPA approved gas manufacturer's Certified Reference Material (CRM). A recommended protocol for certifying CO gas cylinders against a CO, SRM or CRM is given in the Quality Assurance Handbook1. The CO gas cylinder should be recertified on a regular basis determined by the local quality control program. Zero Air Generator Calibration requires zero air that is free of contaminants which will cause a detectable response on the CO analyzer. The zero air should contain <0.01 ppm CO. Since the 48iQ is virtually interference free, it is only necessary to ensure that CO has been removed. It should be noted that zero air as supplied in cylinders from commercial suppliers typically contains CO concentrations in the 0.1-0.3 ppm range. So cylinder zero air should be scrubbed of the residual CO prior to its use in the 48iQ as a dilution gas or a zero standard. Room air which has been scrubbed of CO can also be used as the zero air source. It is not necessary to remove SO2, NO, NO2, CO2, water vapor, or hydrocarbons, since the 48iQ does not respond to these molecules. If water Thermo Scientific 48iQ Instruction Manual 4-1 Calibration Pre-Calibration vapor is not removed, it might be necessary to correct the flow measurement data when calculating the dilution ratio of the span CO reference. A platinum on alumina catalyst, operated at 250 °C, has been found to be a convenient oxidizer to convert CO to CO2. External Flow Meter(s) and Controller(s) In order to obtain an accurate dilution ratio in the dilution method used for calibration, the flow rates must be regulated to 1%, and be measured to an accuracy of at least 2%. The meter and controller can be two separate devices, or combined in one device. The user's manual for the meter should be consulted for calibration information. Additional information on the calibration of flow devices can be found in the Quality Assurance Handbook1. It should be noted that all flows should be corrected to 25 °C and 760 mmHg, and that care should be exercised in correcting for water vapor content. Pre-Calibration 4-2 48iQ Instruction Manual Prior to calibration, be sure the instrument is operating properly. Turn on the instrument and allow it to stabilize for one hour. Select the operating range and the averaging time of the 48iQ. ● The averaging time should be less than the zero duration and less than the span duration. ● The calibration and calibration check duration times should be long enough to account for the transition (purge) process when switching from sample to zero and from zero to span. This transition time is the time required to purge the existing air. ● Depending on the plumbing configuration and the instrument, data from approximately the first minute of a zero calibration or check should be disregarded because of residual sample air. Also, data from approximately the first minute of a span calibration or check should be disregarded because the span is mixing with the residual zero air. ● If an optional sample line filter is used, the calibration must be performed through this filter. Ensure that the flow rate into the output manifold is greater than the total flow required by the analyzer and any other flow demand connected to the manifold. Thermo Scientific Calibration Calibration Calibration Connect the Instrument Use the following procedure to calibrate the instrument. Connect the instrument and the calibration equipment as shown in Figure 4–1. Figure 4–1. Calibration Flow Schematic Thermo Scientific 48iQ Instruction Manual 4-3 Calibration Calibration Detector Gain The Detector Gain is determined at the factory and should only be adjusted by a qualified technician. The only time the Detector Gain should be adjusted is if there were changes to the elements that affect the light path or detection. There are two ways of calibrating the Detector Gain: From the Home Screen>Settings>Advanced Measurement Settings>Optical Bench Settings>Continue To Detector Gain Calibration. The user can manually change the detector gain by clicking on the first cell below the Detector Gain description. The user will be brought to a keypad screen where a new value can be entered. However, it is suggested to run an Auto Calibration for the Detector Gain. This is done by pressing on the cell labeled Start located in the Detector Gain column. Allow up to 5 minutes for the Detector Gain to be calibrated. The user can Stop the calibration at any time by pressing the Stop button located in the Detector Gain column. The user can set the Detector Gain to factory defaults by pressing on the cell labeled Default Gain located in the Detector Gain column. Home Screen>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings>Continue To Detector Gain Calibration 4-4 48iQ Instruction Manual Thermo Scientific Calibration Calibration Initial S/R The Initial S/R (Sample/Reference Ratio) is determined at the factory and should only be adjusted by a qualified technician. The Initial S/R is used to correct for the slight variations found from one correlation wheel to another. The only time the Initial S/ R ratio should be changed is when the correlation wheel is replaced. Zero Air should be sampled when calibrating the Initial S/R. There are two ways of calibrating the Initial S/R. The user can manually change the Initial S/R by clicking on the first cell below the Initial S/R description. The user will be brought to a keypad screen where a new value can be entered. However, it is suggested to run an Auto Calibration for the Initial S/R. This is done by pressing on the cell labeled Start located in the Initial S/R column. Allow up to 5 minutes for the Initial S/R to be calibrated. The user can Stop the calibration at any time by pressing the Stop button located in the Initial S/R column. The user can set the Initial S/R to factory defaults by pressing on the cell labeled Default S/R located in the Initial S/R column. Home Screen>Settings>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings>Continue To Initial S/R Calibration Thermo Scientific 48iQ Instruction Manual 4-5 Calibration Calibration Multipoint Calibration The Multipoint Calibration should be performed initially when the instrument is received. The user can choose to calibrate with one, two, or three points. It is suggested to perform a 3-point Multipoint Calibration. The Multipoint Calibration is divided into three calibration points. The range is user definable and the following calibration points are recommended for the user selected range: ● Point 1: 80% of range ● Point 2: 50% of range ● Point 3: 20% or range Note If performing a multipoint calibration after a “bad” calibration or changing ranges, it is recommended to start off with default values for the Cal point coefficients. ▲ To set default values, from the Home Screen select Calibration>Advanced Calibration>Multipoint Calibration. From Multipoint Calibration, select Reset Points to Default Values. The instrument will automatically reset to default values. 4-6 48iQ Instruction Manual Thermo Scientific Calibration Calibration Use the following procedure to calibrate points 1, 2, and 3: 1. Adjust the zero air flow and the CO flow from the standard CO cylinder to provide a diluted CO concentration of approximately 80% of the upper range limit (URL) of the instrument. The total air flow must exceed the total demand of the analyzer connected to the output manifold to ensure that no ambient air is pulled into the manifold vent. The exact CO concentration is calculated from: [CO ]OUT = ( [CO ] STD x FCO ) ( FD + FCO ) Where: [CO]OUT = diluted CO concentration at the output manifold, ppm [CO]STD = concentration of the undiluted CO standard, ppm FCO = flow rate of CO standard corrected to 25 °C and 760 mmHg, L/min FD = flow rate of dilution air corrected to 25 °C and 760 mmHg, L/min 2. Allow the instrument to sample the CO concentration until a stable response is obtained. 3. From the Home Screen press Calibration>Advanced Calibration>Multipoint Calibration>Point 1. 4. Enter the span concentration being introduced to the instrument. Press Calibrate. The instrument will perform a series of calculations and save the new parameters. Thermo Scientific 48iQ Instruction Manual 4-7 Calibration Calibration 5. Press the back button to back up a step to the multipoint menu. 6. Introduce a CO concentration 50% of the URL. 7. Select Point 2. 8. Enter the span concentration being introduced to the instrument. Press Calibrate. The instrument will perform a series of calculations and save the new parameters. 9. Press the back button to back up a step to the multipoint menu. 10. Introduce a CO concentration 20% of the URL. 11. Select Point 3. 12. Enter the span concentration being introduced to the instrument. Press Calibrate. The instrument will perform a series of calculations and save the new parameters. 4-8 High and Low Multipoint Calibration The instrument can also be calibrated using a dual three-point calibration. The calibration points are divided into a “high” range and a “low” range consisting of three points each. See “Multipoint Calibration” on page 4-6. Calibration Frequency In order to generate data of the highest confidence, it is recommended that a multipoint calibration be performed: 48iQ Instruction Manual ● every three months ● any time any major disassembly of components is performed Thermo Scientific Calibration Calibration Calibrate Background Use the following procedure to set the CO reading to zero. 1. Allow sufficient time for the instrument to warm up and stabilize. 2. Adjust the dilution system of Figure 4–1 so that zero air alone is present in the manifold. Since not all flow controllers have a positive shut off, it might be necessary to disconnect the CO input line and cap it. 3. Allow the instrument to sample zero air until a stable reading is obtained. 4. From the Home Screen, press Calibration>Calibrate Background. The Target Concentration button will read 0.000. The Calculated Background button will display the background needed to make the current CO concentration go to zero. 5. Press Calibrate to set the CO reading to zero and to save the new background. Thermo Scientific 48iQ Instruction Manual 4-9 Calibration Calibration Calibrate Span Coefficient Use the following procedure to adjust the span. 1. Adjust the zero air flow and the CO flow from the standard CO cylinder to provide a diluted CO concentration of approximately 80% of the upper range limit (URL) of the analyzer.The total air flow must exceed the total demand of the analyzer connected to the output manifold to ensure that no ambient air is pulled into the manifold vent. The exact CO concentration is calculated from: [CO ]OUT = ( [CO ] STD x FCO ) ( FD + FCO ) Where: [CO]OUT = diluted CO concentration at the output manifold, ppm [CO]STD = concentration of the undiluted CO standard, ppm FCO = flow rate of CO standard corrected to 25 °C and 760 mmHg, L/min FD = flow rate of dilution air corrected to 25 °C and 760 mmHg, L/min 2. Allow the instrument to sample this CO concentration standard until a stable response is obtained. 3. From the Home Screen, choose Calibration>Calibrate Span Coefficient. The user sets the span concentration by pressing the Edit Span Concentration button. The Calculated Span Coefficient button will show what the span coefficient will be set to if the Calibrate button is pressed. Pressing the Calibrate button will save the new coefficient and calibrate the instrument. 4. Enter the CO calibration gas concentration using the pushbuttons, and then press Calibrate to calibrate the CO reading to the CO calibration gas. 5. Record the CO concentration and the instrument’s response. 4-10 48iQ Instruction Manual Thermo Scientific Calibration Calibration Thermo Scientific 48iQ Instruction Manual 4-11 Calibration Periodic Zero and Span Checks Periodic Zero and Span Checks In order to achieve data of the highest confidence, it is suggested that periodic zero and air span checks be performed. These checks can be performed by: 1. Periodically challenging the instrument with zero air. The output of the zero air supply should be greater than the flow demand of the instrument. In addition, an atmospheric dump bypass should be utilized to ensure that the zero air gas flow is being delivered at atmospheric pressure. Record the response in percent of scale as AO. Compute the zero drift from the following equation: Zero Drift % = AO - Z Where: Z is the response obtained at the last calibration for zero air, % scale 2. Periodically challenging the instrument with a CO level of approximately 80% of the URL. The 80% URL level may be obtained by dilution of a higher level of CO using a system similar to that of Figure 4–1, or by using a low level cylinder of CO containing CO in air at a concentration of approximately 80% of the URL. In either case the cylinder of CO should be checked against an SRM or CRM. It should also be true for a cylinder of low level CO. The Quality Assurance Handbook1 should be referred to for the cylinder checking procedure. Compute the span error from the following equation: Reported CO Concentration  Actual CO Concentration     100 Actual CO Concentration   3. Latest copy of the Quality Assurance Handbook for Air Pollution Measurement Systems1 should be consulted to determine the level of acceptance of zero and span errors. For detailed guidance in setting up a quality assurance program, refer to the Code of Federal Regulations and the EPA Handbook on Quality Assurance. 4-12 48iQ Instruction Manual Thermo Scientific Calibration Manual Calibration Manual Calibration The Manual Calibration menu allows the user to view and manually adjust the zero background and span coefficient. These are used to correct the CO readings that the instrument generates using its own internal calibration data. Normally, the zero background and span coefficient are calculated automatically at the Calibrate Background and Calibrate Span Coefficient described earlier in the chapter. However, the calibration factors can also be set manually using the functions as described below. The following screen is shown in single range mode. In dual or auto range modes, “High Range” or “Low Range” button are displayed to indicate the calibration of the high or low coefficient. The Adjust High Range Span Coefficient and Adjust Low Range Span Coefficient screens function the same way. Home Screen>Calibration>Advanced Calibration>Manual Calibration (single range mode) Adjust Background The CO background is the amount of signal read by the analyzer while sampling zero air. The Adjust Background screen is used to perform a manual zero background calibration of the instrument. As such, the instrument should sample zero air until stable readings are obtained. The button labeled Adjust Background allows the user to change zero background. The second button called Adjusted Concentration shows what the new CO concentration would be based on the changed zero background. Press the Calibrate button to save the adjusted zero background value. Thermo Scientific 48iQ Instruction Manual 4-13 Calibration Manual Calibration Home Screen>Calibration>Advanced Calibration>Manual Calibration>Adjust Background Adjust Span Coefficient The span coefficients are used to correct the CO readings and normally has a value near 1.000 with minimum/maximum limits of 0.500 and 2.000 respectively. The user can manually change the span coefficient by entering a value in the Adjust Span Coefficient button. The second button called Adjusted Concentration shows what the new CO concentration would be based on the adjusted span coefficient. Press the Calibrate button to save the adjusted span coefficient value. Home Screen>Calibration>Advanced>Manual Calibration>Adjust Span Coefficient (single range mode) Reset Bkg to 0.000 and Span Coef to 1.000 4-14 48iQ Instruction Manual The Reset Bkg to 0.000 and Span Coef to 1.000 screen allows the user to reset the calibration configuration values to factory defaults. Thermo Scientific Calibration Zero/Span Schedule Zero/Span Schedule The Zero/Span Schedule screen is available only if the zero/span valve option is installed and turned on (toggles on or off) at the screen Settings>Configuration. It is used to program the instrument to perform fully automated zero and span calibration or calibration checks. Home Screen>Calibration>Zero/Span Schedule Home Screen>Calibration>Zero/Span Schedule>More Next Time Period Zero/Span/Purge Duration Minutes Thermo Scientific The Next Time button is used to view and set the initial date and time (24hour format) of the zero/span schedule. Once the zero/span schedule begins, the date and time of the next zero/span schedule is calculated and displayed. The Period button defines the period or interval between zero/span schedule. Periods between 0 and 999 hours are acceptable. The Zero Duration button defines how long zero air is sampled by the instrument. The Span and Purge Duration buttons look and function the same way as the zero duration button. The span duration button is used to 48iQ Instruction Manual 4-15 Calibration References set how long the span gas is sampled by the instrument. The purge duration button is used to set how long the purge period will be after doing a zero and/or span. This gives the instrument time to flush out the zero and span gas before any meaningful sample data is taken. Logged data is flagged as taken during a purge to show that the data is suspect. Durations between 0 and 99 minutes are acceptable. Each time a zero/span schedule occurs the zero is done first, followed by the span. To perform just a zero, set the span duration to 0 (off). The same applies to perform just a span. Schedule Averaging Time Background Calibration and Span Calibration Zero Calibration and Span Calibration The Schedule Averaging Time button allows the user to adjust the schedule averaging time. The schedule averaging time is used by the analyzer only when performing a zero/span schedule. The analyzer’s averaging time is used for all other functions. Range is 1300 seconds. Background Calibration and Span Calibration are toggle buttons that change between enabled or disabled. If the background calibration is set to enabled, then a zero adjustment is made. If the span calibration is set to enabled, then a span adjustment is made. (This is how to set up a scheduled, recurring auto calibration.) Zero and Span Calibration Commit are toggle buttons that change between yes or no when selected. If the zero calibration commit is set to yes, then a zero adjustment is made. If the span calibration commit is set to yes, then a span adjustment is made. (This is how to set up a scheduled, recurring auto calibration.) Zero/Span Ratio References The Zero/Span Ratio button is used to set the ratio of zero checks or adjustments to span checks or adjustments. For example, if this value is set to 1, a span duration will follow every zero duration. If this value is set to 3, there will be two zero checks between each span check. This value may be set from 1 to 99, with 1 as default. 1. Section 12 of EPA Quality Assurance Handbook for Air Pollution Measurement Systems, Volume II, available at www.epa.gov. Section 12 also provides information on “Calibration of Primary and Secondary Standards for Flow Measurements”. Specific information on certification of concentration standards is given in EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards, available at www.epa.gov. 4-16 48iQ Instruction Manual Thermo Scientific Chapter 5 Maintenance This chapter describes the periodic maintenance procedures that should be performed on the instrument to ensure proper operation. Since usage and environmental conditions vary greatly, you should inspect the components frequently until an appropriate maintenance schedule is determined. Safety Precautions Read the safety precautions before beginning any procedures in this chapter. Equipment Damage Some internal components can be damaged by small amounts of static electricity. A properly grounded antistatic wrist strap must be worn while handling any internal component. For more information about appropriate safety precautions, see the “Servicing” chapter. ▲ Fan Filter Inspection and Cleaning Use the following procedure to inspect and clean the fan filter. 1. Remove the fan guard from the fan and remove the filter. 2. Flush the filter with warm water and let dry (a clean, oil-free purge will help the drying process) or blow the filter clean with compressed air. 3. Re-install the filter and fan guard. Thermo Scientific 48iQ Instruction Manual 5-1 Maintenance Pump Rebuilding Pump Rebuilding Use the following procedure to rebuild the pump. Equipment required: Pump rebuild kit (qty. 1) Phillips drive, #1 or Torque drive, T10 (depending on pump version) Pencil or marker Figure 5–1. Single Stage Pump 1. Turn instrument OFF, unplug the power cord, and remove the cover. 2. Mark the position of head parts relative to each other by drawing a line with a pencil. This helps avoid incorrect assembly later. 3. Undo the four screws in the head. 4. Lift the head plate and the intermediate plate off the housing. 5. Hold the pump with one hand, so that the diaphragm is pointing downwards. Lift the diaphragm by the opposing side edges, grasp it and unscrew it in the counter-clockwise direction. 5-2 48iQ Instruction Manual Thermo Scientific Maintenance Pump Rebuilding 6. Remove connection rod disc and diaphragm spacers from the threaded pin of the diaphragm. 7. Push the connection rod disc and the diaphragm spacers in this order onto the threaded pin of the new diaphragm. 8. Move the connecting rod to the upper point. 9. Screw the new diaphragm with connection rod disc and spacers clockwise onto the connection rod and tighten hand-tight. 10. Place the intermediate plate on housing, in the position indicated by the drawing line. 11. Place the new valve plate on the intermediate plate. 12. Place the head plate on the intermediate plate, in the position indicated by the drawing line; gently tighten the four screws, evenly and diagonally (if a torque screwdriver is available: torque about 0.30 Nm). 13. Let the pump run. Thermo Scientific 48iQ Instruction Manual 5-3 Maintenance Pump Rebuilding Figure 5–2. Pump Rebuilding 5-4 48iQ Instruction Manual Thermo Scientific Maintenance Leak Test Leak Test Use the following procedure to perform a leak test. Equipment Required: Cap Vacuum Tester with Gauge (with a resolution of .5 in Hg or better) 1. Turn instrument OFF, unplug the power cord. 2. Block the SAMPLE bulkhead on the rear panel with a leak-tight cap. 3. Connect the vacuum tester tool to the EXHAUST bulkhead on the rear panel. 4. Squeeze trigger until gauge reads to pull in 10 in Hg. 5. Observe vacuum gauge for stable reading for 5 minutes. If reading remains at 10 in Hg, no leak is present. Note Acceptable leak rate is .5 in Hg over 10 minutes. ▲ Thermo Scientific 48iQ Instruction Manual 5-5 Maintenance Cleaning the Optics Cleaning the Optics Best results are obtained when the optics are cleaned prior to calibration. The cleanliness of the mirrors should be checked any time the intensity is below 200,000 Hz, since one cause of low output is light attenuation due to dirt on the mirrors. Equipment Damage Some internal components can be damaged by small amounts of static electricity. A properly grounded antistatic wrist strap must be worn while handling any internal component. For more information about appropriate safety precautions, see the “Servicing” chapter. ▲ Use the following procedure to clean the mirrors. Equipment Required: Hex drive, 9/64 1. Turn off power and disconnect power line. 2. Using 9/64 hex drive, remove the field mirror by removing the four #832 socket cap head screws holding it to the main bench. Figure 5–3. Removing the Field Mirror 5-6 48iQ Instruction Manual Thermo Scientific Maintenance Cleaning the Optics 3. Carefully clean each mirror using a cotton swab and methanol. Rinse with distilled or deionized water. Dry by blowing clean dry air over the mirror. 4. Reassemble following the above procedure in reverse. It is not necessary to realign any mirror following cleaning. 5. Calibrate the instrument. See the “Calibration” chapter in this manual. Thermo Scientific 48iQ Instruction Manual 5-7 Maintenance IR Source Replacement IR Source Replacement The IR source control system has been designed to operate the wire wound resistor IR source conservatively in order to increase its life. Nevertheless, the IR source does have a finite life. Since the IR source is relatively inexpensive and easily replaced, it is recommended that the IR source be replaced after one year of continuous use. This will prevent loss of data due to IR source failure. If an IR source is to be replaced on an as needed basis, it should be replaced when: ● There is no light output ● After cleaning the optics, the IR light intensities remain below 100,000 Hz For more information on replacing the IR Source, see “IR Source Replacement” on page 7-45. Note It is not necessary to recalibrate the 48iQ after replacing the IR source since it is a ratio instrument, and replacing the IR source does not affect the calibration. ▲ 5-8 48iQ Instruction Manual Thermo Scientific Chapter 6 Troubleshooting This chapter presents guidelines for diagnosing analyzer failures, isolating faults, and includes recommended actions for restoring proper operation. Safety Precautions Troubleshooting Guide Read the safety precautions in Appendix A, “Safety” before performing any actions listed in this chapter. Table 6–1 provides general troubleshooting information for the common platform and indicates the checks that you should perform if you experience an instrument problem. It also lists 48iQ specific troubleshooting information and alarm messages you may see on the graphics display and provides recommendations about how to resolve the alarm condition. Table 6–1. 48iQ Troubleshooting Guide Thermo Scientific Problem Possible Cause Action Instrument does not start (LEDs on front panel do not come on and display is blank) No power Verify that the power cord is plugged in, power is available and that it matches the voltage and frequency configuration of the instrument. Fuse is blown or missing Disconnect power and check fuses with a volt meter. Bad switch or wiring connection to switch Check for 24V @ J9 on the Backplane board (middle pins). Check all wiring connections. Front panel display does not start (LEDs on front panel are off) Disconnected ribbon cable Power down and evaluate connections of display ribbon cable. Front panel display does not start (LEDs on front panel are on) Defective Display Connect to the instrument using ePort. Select “Remote Interface”. If normal GUI is displayed, replace defective display. Front panel display stays white after power up (LEDs on front panel are on) Unseated or missing Micro SD card Power off, re-seat Micro SD or install if missing. 48iQ Instruction Manual 6-1 Troubleshooting Troubleshooting Guide Problem Possible Cause Action Micro SD Card Programming If Micro SD card was just replaced, re-install the old one. If the problem is fixed, request a replacement Micro SD card. Solenoid current out of range (option) Sticking or damaged solenoid Reset solenoid via Settings>Health Check>Status and Alarms>Valve and Pump Resets screen. If damaged, replace solenoid valve block. Pump current out of range Damaged or dirty pump Reset pump via Settings>Health Check>Status and Alarms>Valve and Pump Resets. Inspect and refurbish pump. If pump motor is damaged, replace pump. No output signal (or very low output) No sample gas reaching the analyzer Check input sample flow. Ruptured pump diaphragm Rebuild pump head. Blocked sample capillary Unplug power cord. Clean or replace capillary. Line voltage fluctuations Check to see if line voltage is within specifications. Defective pump Rebuild pump. Clogged capillaries Unplug power cord. Clean or replace capillary. Clogged sample air filter Replace filter element. Incorrect calibration source Verify accuracy of multipoint calibration source gas. Leak in sample probe line Check for variable dilution. Partially blocked sample capillary Unplug power cord. Clean or replace capillary. Hang up/blockage in sample filter Change element. Low line voltage Check to see if line voltage is within specifications. Fan failure Replace fan if not operating properly. Dirty fan filter Clean or replace filter. Overheating PCB Locate defective PCB reporting the error and replace if needed. Defective bench Check 10K ohm thermistor and Calibration drift Non-linear response Excessive response time Alarm – Internal Temperature Alarm – Bench Temperature 6-2 48iQ Instruction Manual Thermo Scientific Troubleshooting Troubleshooting Guide Problem Possible Cause heater Action replace heater if bad. Alarm – Pressure High bench pressure indication Check the pump for a tear in the diaphragm; replace with pump repair kit if necessary. Refer to “Maintenance” chapter in this manual. Check that capillaries are properly installed and o-rings are in good shape. Replace if necessary. Check flow system for leaks. Alarm – Flow Flow low Check sample capillary for blockage. Replace as necessary. If using sample particulate filter, make sure it is not blocked. Disconnect sample particulate filter from the sample bulkhead. If flow increases, replace the filter. Perform a leak test as decribed on page 5-5. Alarm – Board Communication Alarm – Power Supply Alarm – Module Temperature Thermo Scientific Flow high When delivering zero air or gas to the instrument, use an atmospheric dump. Flow = 0 LPM Check that Step POL board #1 has both dip switch settings of SW2 off (both facing the rear of the instrument). Verify the pump is plugged into the Step POL board. Worn Diaphragm Rebuild pump every 12 months or as needed. Cable connection Check that DMC cable is connected properly. Reseat if needed. Defective DMC PCB Replace DMC board. Cable connection Check that DMC cable is connected properly. Reseat if needed. Defective component Check for other alarms, as it is possible that another component of that DMC is drawing too much current. Defective DMC PCB Replace DMC board. Cable connection Check that DMC cable is connected properly. Reseat if needed. Other alarm Make sure the instrument temperature is not too high or in alarm. 48iQ Instruction Manual 6-3 Troubleshooting Troubleshooting Guide Problem Possible Cause Action Defective DMC PCB Replace DMC board. Alarm – 5V/24V Step Board Cable connection Check the cable connections to that Step POL board. Alarm – Conc. Concentration has exceeded range limit Check to ensure range corresponds with expected value. If not, select proper range. Concentration low Check user-defined low set point. Be sure the minimum trigger is set as desired. Alarm – Analog I/O Defective PCB Replace Analog board. Alarm – Digital I/O Defective PCB Replace Digital board. Alarm – Auto Bkg Cal/Check Incorrect high alarm limit Verify the high limit is correct via Settings>Status and Alarms>Concentrations screen. Instrument background calibration failed Recalibrate the instrument. Incorrect high alarm limit Verify the high limit is correct via Settings>Status and Alarms>Concentrations screen. Instrument span calibration failed Recalibrate the instrument. Alarm – Bench Temp Thermistor Open Cable connection Check connection from heater to DMC board. Reseat if needed. Alarm – Bench Temp Thermistor Short Cable connection Check connection from heater to DMC board. Reseat if needed. Alarm – Motor Speed too low Cable connection Check connection from motor to DMC board. Reseat if needed. Defective Heater Replace motor as needed. Defective DMC board Replace board as needed. Cable connection Check connection from motor to DMC board. Reseat if needed. Defective Heater Replace motor as needed. Defective DMC board Replace board as needed. Alarm – Module Thermistor Open Defective DMC board Replace board as needed. Alarm – Module Thermistor Short Defective DMC board Replace board as needed. Alarm – Bench Temp Thermistor Open Cable connection Check the cable connection from the thermistor to the DMC board. Alarm – Auto Span Cal/Check Alarm – Motor Speed too high 6-4 48iQ Instruction Manual Thermo Scientific Troubleshooting Troubleshooting Guide Problem Alarm – Bench Temp Thermistor Short Alarm – IR Source Current Low Alarm – IR Source Current High Alarm – IR Detector Bias Low Alarm – IR Detector Bias High Thermo Scientific Possible Cause Action Defective Thermistor Replace Thermistor as needed. Defective DMC board Replace board as needed. Cable connection Check the cable connection from the IR Source to the DMC board. Defective IR Source Replace IR Source as needed. Defective DMC board Replace board as needed. Cable connection Check the cable connection from the IR Source to the DMC board. Defective IR Source Replace IR Source as needed. Defective DMC board Replace board as needed. Cable connection Check the cable connection from the IR Source to the DMC board. Defective IR Source Replace IR Source as needed. Defective DMC board Replace board as needed. Cable connection Check the cable connection from the IR Source to the DMC board. Defective IR Source Replace IR Source as needed. Defective DMC board Replace board as needed. Cable connection Check the cable connection from the IR Source to the DMC board. Defective IR Source Replace IR Source as needed. Defective DMC board Replace board as needed. 48iQ Instruction Manual 6-5 Chapter 7 Servicing This chapter describes the periodic servicing procedures that should be performed on the instrument to ensure proper operation and explains how to replace the 48iQ subassemblies. Safety Precautions Read the safety precautions before beginning any procedures in this chapter. Icon Here The service procedures in this manual are restricted to qualified service representatives. ▲ Icon Here If the equipment is operated in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. ▲ CAUTION If the LCD panel breaks, do not let the liquid crystal contact your skin or clothes. If the liquid crystal contacts your skin or clothes, wash immediately using soap and water. ▲ Do not remove the LCD panel or frame from the LCD module. ▲ The LCD polarizing plate is very fragile, handle it carefully. ▲ Do not wipe the LCD polarizing plate with a dry cloth, as it may easily scratch the plate. ▲ Do not use alcohol, acetone, MEK or other Ketone based or aromatic solvents to clean the LCD module, but rather use a soft cloth moistened with a naphtha cleaning solvent. ▲ Do not place the LCD module near organic solvents or corrosive gases. ▲ Do not shake or jolt the LCD module. ▲ Thermo Scientific 48iQ Instruction Manual 7-1 Servicing Safety Precautions Equipment Damage Some internal components can be damaged by small amounts of static electricity. A properly grounded antistatic wrist strap must be worn while handling any internal component. For more information about appropriate safety precautions, see “Safety”. ▲ Note If an antistatic wrist strap is not available, be sure to touch the instrument chassis before touching any internal components. When the instrument is unplugged, the chassis is not at earth ground. ▲ Figure 7–1. Properly Grounded Antistatic Wrist Strap Note Ground to unpainted case or outlet as shown. ▲ 7-2 48iQ Instruction Manual Thermo Scientific Servicing Firmware Updates Firmware Updates New versions of the instrument software are periodically made available over Ethernet, USB flash drive, or company website at: www.thermofisher.com For more information on installing new firmware, see “Installing New Firmware” in the iQ Series Communications manual. Replacement Parts List For a complete list of spare parts, visit the company website at: www.thermofisher.com/48iQ Refer to Figure 7–2 and Figure 7–3 to identify the component location. Thermo Scientific 48iQ Instruction Manual 7-3 Servicing Replacement Parts List Figure 7–2. 48iQ Component Layout Top View Figure 7–3. 48iQ Component Layout Side View 7-4 48iQ Instruction Manual Thermo Scientific Servicing Fuse Replacement Fuse Replacement Use the following procedure to replace the fuses. 1. Turn instrument OFF and unplug the power cord. 2. Remove fuse drawer, located on the AC power connector. 3. If either fuse is blown, replace both fuses. 4. Insert fuse drawer and reconnect power cord. Figure 7–4. Replacing the Fuses Thermo Scientific 48iQ Instruction Manual 7-5 Servicing Filter Replacement Filter Replacement Use the following procedure to replace the filter. 1. Turn instrument OFF and unplug the power cord. 2. Starting with top right corner, pull out to remove fan cover. Figure 7–5. Start with Top Right Corner of Fan Cover 3. Replace filter and snap fan cover back in place. Figure 7–6. Removing the Fan Cover 7-6 48iQ Instruction Manual Thermo Scientific Servicing Fan Replacement Fan Replacement Use the following procedure to replace the fan. Equipment required: Phillips drive, #2 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug the fan cable J18. Figure 7–7. Unplugging the Fan Cable 3. Starting with top right corner, pull out to remove fan cover. 4. Unhook the four latches of the fan cover. 5. Unfasten the four 6-32 screws from the fan housing. 6. Replace fan and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-7 Servicing Fan Replacement Figure 7–8. Replacing the Fan 7-8 48iQ Instruction Manual Thermo Scientific Servicing Measurement Side Removal Measurement Side Removal Use the following procedure to remove and replace the measurement side if necessary. Equipment required: Phillips drive, #2 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug the fan cable J18 (Figure 7–9). Figure 7–9. Unplugging the Fan Cable 3. Unplug DMC cable (Figure 7–10). Thermo Scientific 48iQ Instruction Manual 7-9 Servicing Measurement Side Removal Figure 7–10. Unplugging the DMC Cable 4. Gripping from the top corners of the front panel and pull outwards. 5. Using #2 Phillips drive, remove three 8-32 flat head screws (Figure 7– 11). Figure 7–11. Unfasten Hardware Front for Measurement Side Removal 7-10 48iQ Instruction Manual Thermo Scientific Servicing Measurement Side Removal 6. Swing arm open. 7. Unfasten captive hardware. 8. Using #2 Phillips drive, remove two 8-32 flat head screws. 9. Pull measurement side out. 10. Replace in reverse order. Figure 7–12. Unfasten Hardware Rear for Measurement Side Removal Thermo Scientific 48iQ Instruction Manual 7-11 Servicing LCD Module Replacement LCD Module Replacement Use the following procedure to replace the LCD module. Equipment required: Wrench, 1/4 1. Turn instrument OFF and unplug the power cord. 2. Gripping from the top corners of the front panel and pull outwards. 3. Using 1/4 wrench, unfasten four #4-40 nuts (Figure 7–13). Figure 7–13. Replacing the LCD Module 4. Remove cover. 5. Unplug LCD cables from backside of board. 6. Pull board off the standoffs. 7-12 48iQ Instruction Manual Thermo Scientific Servicing LCD Module Replacement Figure 7–14. Remove Electrical Cables from LCD 7. Replace LCD module and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-13 Servicing I/O Replacement I/O Replacement Use the following procedure to replace the I/O boards. 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Swing arm open. Figure 7–15. I/O Replacement, Arm 3. Pull board upwards. Figure 7–16. I/O Replacement, Remove Board 7-14 48iQ Instruction Manual Thermo Scientific Servicing I/O Replacement 4. During install, make sure to align cutout circular to keyway. 5. Insert board downwards. Figure 7–17. I/O Replacement, Install 6. Close arm. Make sure expansion bracket aligns to the inside of the rectangular cutouts. Figure 7–18. I/O Replacement, Close Arm Alignment Thermo Scientific 48iQ Instruction Manual 7-15 Servicing Peripherals Support Board and System Controller Board Replacement Peripherals Support Board and System Controller Board Replacement Use the following procedure to replace the peripherals support board or system controller board. 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Pull tab out (two per board). 3. Pull board out. Figure 7–19. Replacing the Peripherals Support Board 4. Replace board and reassemble in reverse order. 7-16 48iQ Instruction Manual Thermo Scientific Servicing DMC Pressure and Flow Board DMC Pressure and Flow Board Use the following to replace the DMC pressure and flow board. Equipment required: Hex drive, 7/16 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug cables from the pressure and flow board. Figure 7–20. Flow Pressure Board, Disconnect DMC Cable 3. Disconnect plumbing. 4. Using 7/16 hex drive, unfasten four #6-32 socket cap head screws. Thermo Scientific 48iQ Instruction Manual 7-17 Servicing DMC Pressure and Flow Board Figure 7–21. Flow Pressure Board, Screws 5. Replace board and reassemble in reverse order. 7-18 48iQ Instruction Manual Thermo Scientific Servicing Pump Replacement Pump Replacement Use the following procedure to replace the pump. Equipment required: Phillips drive, #1 and #2 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug pump cable from step pol board J7. 3. Twist opposite direction to unlock tube clamps. Note Push in tube clamp to lock. ▲ 4. Disconnect tubing from pump. 5. Using #2 Phillips drive, unfasten two captive hardware. 6. Slide pump left until keyway meets opening. Thermo Scientific 48iQ Instruction Manual 7-19 Servicing Pump Replacement Figure 7–22. Remove Pump, Disconnect and Unfasten 7. Pull pump outwards. Note When installing pump, make sure the pump keyway opening goes over the keyway. ▲ 7-20 48iQ Instruction Manual Thermo Scientific Servicing Pump Replacement Figure 7–23. Pump Removal, Keyway 8. Using #1 Phillips drive, remove two M3 screws. Figure 7–24. Pump replacing, Unfasten Screws 9. Replace pump and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-21 Servicing Capillary Cleaning and/or Replacement Capillary Cleaning and/or Replacement Use the following procedure to clean and/or replace the capillary. Equipment required: Phillips drive, #2 Hex drive, 7/64 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Disconnect the plumbing. 3. Using #2 Phillips drive, unfasten captive hardware. Figure 7–25. Remove Capillary, Disconnect and Unfasten 4. Slide capillary plate upwards clearing the partition panel keyway. 7-22 48iQ Instruction Manual Thermo Scientific Servicing Capillary Cleaning and/or Replacement Figure 7–26. Capillary Plate, Keyway 5. Using 7/64 hex drive, remove four #6-32 socket cap head screws. 6. Pull apart the capillary blocks. Figure 7–27. Capillary and O-Ring Replace Thermo Scientific 48iQ Instruction Manual 7-23 Servicing Capillary O-Ring Replacement 7. Replace capillary and reassemble in reverse order. Note Fitting arrangements, number of capillaries and capillary sizes will vary per instrument configuration. ▲ Capillary O-Ring Replacement Use the following procedure to replace the capillary o-rings. Equipment required: O-ring pick tool 1. Using a plastic o-ring pick tool, remove the o-ring. Note Be careful in not damaging the o-ring walls during this process. Refer to Figure 7–27. ▲ Power Supply Replacement Use the following procedure to replace the power supply. Equipment required: Phillips drive, #2 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug all electrical shown J9, J10, J24, J25, J26, and ground. 3. Unfasten captive hardware. 4. Slide power supply left, clearing three case floor plate keyways. 7-24 48iQ Instruction Manual Thermo Scientific Servicing Power Supply Replacement Figure 7–28. Removing Power Supply 5. Pull power supply up. 6. Replace power supply and reassemble in reverse order. Figure 7–29. Replacing Power Supply Thermo Scientific 48iQ Instruction Manual 7-25 Servicing Step POL Board Replacement Step POL Board Replacement Use the following procedure to replace the Step POL board. Equipment required: Torque screwdriver, T15 or Slot screwdriver, 3/16 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug step pol power cable J4. 3. Unplug step pol signal cable J2. 4. Unplug pump cable J7. 5. Unfasten captive hardware. Figure 7–30. Unplug and Unfasten Step POL Board 7-26 48iQ Instruction Manual Thermo Scientific Servicing Step POL Board Replacement Figure 7–31. Clear Partition Keyway Step POL Board 6. Slide step board 1 upwards clearing the partition panel keyway. 7. If replacing step board 1, make sure switch 1 and 2 are pointed away from ON (Figure 7–32). If replacing optional step board 2, make sure switch 1 is pointed towards ON and switch 2 is pointed away from ON (Figure 7–33). 8. Replace step POL board and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-27 Servicing Step POL Board Replacement Figure 7–32. Step POL Board 1 Switch Settings Figure 7–33. Optional Step POL Board 2 Switch Settings 7-28 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench DMC Optical Bench The DMC Optical Bench consists of an optical bench, a bracket, and a DMC board. Figure 7–34. DMC Layout Use the following procedure to remove the DMC from the instrument case. It is easier to do the following by removing the DMC first then remove and replace the following as necessary. Thermo Scientific ● Optical Bench removal ● Optical switch replacement, purge wheel housing removal, filter wheel replacement, motor replacement, filter wheel and motor alignment ● Heater Assembly removal ● Pre-Amp/Detector Assembly removal ● IR Source removal 48iQ Instruction Manual 7-29 Servicing DMC Optical Bench Optical Bench Removal Use the following procedure to remove the optical bench from the instrument case. Equipment required: Phillips drive, #2 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug DMC cable J6 (bottom). 3. Disconnect plumbing as shown. 4. Using a #2 Phillips drive, unfasten six captive hardware. Figure 7–35. DMC Removal from Instrument 7-30 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench Optical Switch Replacement Use the following procedure to replace the optical switch. Equipment required: Hex drive, 5/32 Phillips drive, #1 1. Unplug J8 (motor) and J4 (opt). 2. Unhook motor and opt connections. Figure 7–36. Motor and Filter Removal pt 1 Thermo Scientific 48iQ Instruction Manual 7-31 Servicing DMC Optical Bench 3. Unplug electrical connections. 4. Using a 5/32 hex drive, remove three #10-32 socket cap head screws and lockwashers. Figure 7–37. Motor and Filter Removal (pt 2) 7-32 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench Note Replace the optical switch if needed. You don’t have to remove the optical switch to replace the motor or filter. ▲ 5. Using #1 Phillips drive, unfasten two #4-40 flat head screws to remove the optical cover. 6. Using #1 Phillips drive, unfasten one #2-56 pan head screw to remove the optical switch. Figure 7–38. Motor and Filter Optical Switch Replacement (pt 3) Thermo Scientific 48iQ Instruction Manual 7-33 Servicing DMC Optical Bench Purge Wheel Housing Removal Use the following procedure to remove the purge housing in order to get to the filter wheel and motor. Equipment required: Hex drive, 5/32 1. Using 5/32 hex drive, unfasten two #10-32 socket cap head screws. 2. Carefully pull wheel housing apart. Figure 7–39. Purge Housing Removal from Motor Assembly (pt 4) 7-34 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench Filter Wheel Replacement Use the following procedure to replace the filter wheel. Equipment required: Hex drive, 5/32 and 5/64 Phillips drive, #2 1. Remove optical bench. Refer to “Optical Bench Removal” on page 730. 2. Remove purge wheel housing. Refer to “Purge Wheel Housing Removal” on page 7-34. 3. Using 5/32 hex drive, unfasten two #10-32 socket cap head screws. 4. Using #2 Phillips drive, unfasten #8-32 pan head screw to gain access to #8-32 set screw. 5. Using 5/64 hex drive, loosen #8-32 set screw two or three turns only. 6. Carefully slide chopper wheel off motor shaft. 7. Replace filter wheel and align motor and filter wheel. Refer to “Motor and Filter Wheel Alignment” on page 7-39. Thermo Scientific 48iQ Instruction Manual 7-35 Servicing DMC Optical Bench Figure 7–40. Filter Wheel 7-36 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench Motor Replacement Use the following procedure to replace the motor. Equipment required: Hex drive, 5/32 and 5/64 Phillips drive, #2 1. Remove optical bench. Refer to “Optical Bench Removal” on page 730. 2. Remove purge wheel housing. Refer to “Purge Wheel Housing Removal” on page 7-34. 3. Remove filter wheel. Refer to “Filter Wheel Replacement” on page 735. 4. Using 5/64 hex drive, unfasten two #10-32 socket cap head screws. Figure 7–41. Motor Removal from Motor Mount pt 1 Thermo Scientific 48iQ Instruction Manual 7-37 Servicing DMC Optical Bench 5. Using #2 Phillips drive, unfasten #8-32 pan head screw to gain access to #8-32 set screw. 6. Using 5/64 hex drive, loosen #8-32 set screw two or three turns only. 7. Carefully slide motor out. 8. Replace motor and align filter wheel and motor. Refer to “Motor and Filter Wheel Alignment” on page 7-39. Figure 7–42. Motor Removal 7-38 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench Motor and Filter Wheel Alignment After installing a new motor or filter wheel, use the following procedure to align the motor and filter wheel. Equipment required: Hex drive, 5/32 and 5/64 Thread locker 1. With the “DIMPLE” of the shaft aligned with the access hole, carefully slide chopper wheel over motor shaft until set screw lines up with hole. 2. Apply a light amount of thread locker to #8-32 set screw. 3. Using 5/64 hex drive tighten set screw slowly while gently rotating the chopper wheel back and forth. You should feel the set screw engage with the “DIMPLE” of the shaft. (The set screw for the chopper wheel is located opposite the curved slot.). 4. Make sure 10-32 screws are fastened. If motor is replaced, refer to Figure 7–41. 5. After the filter wheel is installed, spin the wheel and observe that it runs true on the motor shaft. Thermo Scientific 48iQ Instruction Manual 7-39 Servicing DMC Optical Bench Figure 7–43. Motor Installation Shaft Alignment 6. Let instrument sample zero air for about 90 minutes. 7. From the Home screen, choose Settings>Measurement Settings>Advanced Measurement Settings>Optical Bench Settings>Continue to Initial S/R Calibration. 8. Follow steps in Chapter 4, “Calibration” for “Initial S/R”. 7-40 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench Optical Bench/Heater Removal Use the following procedure to remove the optical bench or replace heater assembly. Equipment required: Hex drive, 5/32 Phillips drive, #1 Icon Here Allow to cool before handling bottom of optical bench. ▲ 1. Unplug electrical connections, J5 heater, J1 preamp, bottom connection J8 motor, and top connection J4 opt. 2. Using a 5/32 hex drive, unfasten four #10-32 socket cap head screws and lockwashers. Figure 7–44. Bench Removal pt 1 Thermo Scientific 48iQ Instruction Manual 7-41 Servicing DMC Optical Bench 3. Turn bench over, backside of optical bench. 4. Using #1 Phillips drive, unfasten five #4-40 pan head screws. Figure 7–45. Heater Removal 5. When replacing with new heatsink or thermistor, heatsink compound is required. Apply a thin and even coat of heatsink compound underneath. 7-42 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench Pre-Amp/Detector Assembly Removal Use the following procedure to remove the pre-amplifier/detector assembly. Equipment required: Phillips drive, #1 Hex drive, 7/64 1. Turn the instrument OFF, unplug the power cord, and remove the cover. 2. Unplug preamp and source IR cable assembly. Figure 7–46. Preamp Detector Cover Removal pt 1 3. Using a #1 Phillips drive, unfasten two #4-40 pan head screws. 4. Lift preamp cover up. Thermo Scientific 48iQ Instruction Manual 7-43 Servicing DMC Optical Bench 5. Using a 7/64 hex drive, unfasten two #6-32 socket cap head screws. 6. Pull preamp board assembly outwards. Figure 7–47. Preamp/Detector Removal 7. Replace preamp/detector as needed and assemble in reverse order. Note When reinstalling preamp board assembly, make sure the o-ring is seated properly. ▲ 7-44 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench IR Source Replacement The IR source control system has been designed to operate the wire wound resistor IR source conservatively in order to increase its life. Nevertheless, the IR source does have a finite life. Since the IR source is relatively inexpensive and easily replaced, it is recommended that the IR source be replaced after one year of continuous use. This will prevent loss of data due to IR source failure. If an IR source is to be replaced on an as needed basis, it should be replaced when: ● There is no light output ● After cleaning the optics, the IR light intensities remain below 100,000 Hz It is not necessary to recalibrate the 48iQ after replacing the IR source since it is a ratio instrument, and replacing the IR source does not affect the calibration. Use the following procedure to replace the IR source from DMC. 1. Turn the instrument OFF, unplug the power cord, and remove the cover. 2. Disconnect IR source cable as shown. Thermo Scientific 48iQ Instruction Manual 7-45 Servicing DMC Optical Bench Figure 7–48. IR Source Cable Disconnect 7-46 48iQ Instruction Manual Thermo Scientific Servicing DMC Optical Bench 3. Using a #1 Phillips drive, unfasten two #4-40 pan head screws. 4. Pull IR source assembly upwards. Figure 7–49. IR Source Assembly Removal 5. Reinstall in reverse order. Thermo Scientific 48iQ Instruction Manual 7-47 Servicing Optional Manifold Replacement Optional Manifold Replacement Use the following procedure to replace the manifold. Equipment required: Hex wrench, 9/16 Hex drive, 9/64 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug three electrical connections (J5, J6, and J8) from the step pol board 1. Figure 7–50. Replacing the Manifold pt 1 3. Unfasten three nuts. Remove the nuts, front and back ferrules as shown from span, zero in, sample back panel (Figure 7–51). 7-48 48iQ Instruction Manual Thermo Scientific Servicing Optional Manifold Replacement Figure 7–51. Replacing the Manifold pt 2 4. Disconnect tubing. 5. Using a #2 Phillips drive, unfasten four #8-32 socket cap head screws. Figure 7–52. Replacing the Manifold pt 3 6. Replace the manifold and assemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-49 Servicing Optional Zero Air Scrubber Replacement Optional Zero Air Scrubber Replacement Use the following procedure to replace the zero air scrubber. Equipment required: Hex drive, 9/16 1. Turn the instrument OFF, unplug the power cord, and remove the cover (Figure 2–1). 2. Disconnect plumbing. 3. Unfasten four #8-32 socket cap head screws. Figure 7–53. Zero Air Scrubber Replacement 4. Replace zero air scrubber and reinstall in reverse order. 7-50 48iQ Instruction Manual Thermo Scientific Servicing Optional DMC Oxygen Sensor Optional DMC Oxygen Sensor Oxygen Sensor Removal Use the following procedure to remove the oxygen sensor from the instrument case. It is easier to do the following by removing the oxygen sensor first then remove and replace the following as necessary: ● Oxygen Sensor removal ● Oxygen Sensor board replacement ● Oxygen Sensor capillary replacement ● Oxygen Sensor replacement Use the following procedure to remove and replace the oxygen sensor. Equipment required: Phillips drive, #2 1. Turn instrument OFF, unplug power cord, and remove the cover (Figure 2–1). 2. Unplug electrical, unplug DMC cable to oxygen sensor board DMC (J4). 3. Disconnect 2X plumbing. 4. Using a #2 Phillips drive, unfasten captive hardware. Thermo Scientific 48iQ Instruction Manual 7-51 Servicing Optional DMC Oxygen Sensor Figure 7–54. Oxygen Sensor Removal pt 1 5. Slide oxygen sensor assembly left. Note Make sure oxygen sensor plate clears the edge and stud. ▲ Figure 7–55. Oxygen Sensor Removal pt 2 7-52 48iQ Instruction Manual Thermo Scientific Servicing Optional DMC Oxygen Sensor 6. Slide oxygen sensor assembly upwards. Figure 7–56. Oxygen Sensor Removal pt 3 7. Pull away from the partition panel. Note Make sure oxygen sensor plate clears the edge. ▲ Figure 7–57. Oxygen Sensor Removal pt 4 Thermo Scientific 48iQ Instruction Manual 7-53 Servicing Optional DMC Oxygen Sensor Oxygen Sensor Board Replacement Use the following procedure to replace the oxygen sensor board. Equipment required: Phillips drive, #2 1. Remove the oxygen sensor DMC from the instrument. Refer to “Oxygen Sensor Removal” on page 7-51. 2. Unplug J1. 3. Using a #2 Phillips drive, unfasten five #6-32 pan head screws. Figure 7–58. Replacing the Oxygen Sensor DMC Board 4. Slide board upwards. Note Clear keyway. ▲ 7-54 48iQ Instruction Manual Thermo Scientific Servicing Optional DMC Oxygen Sensor Figure 7–59. Replacing the Oxygen Sensor DMC Board pt 2 5. Replace oxygen sensor board and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-55 Servicing Optional DMC Oxygen Sensor Oxygen Sensor Capillary Replacement Use the following to replace the oxygen sensor capillary. Equipment required: Ball-end hex drive, 3/32 1. Remove the oxygen sensor DMC from the instrument. Refer to “Oxygen Sensor Removal” on page 7-51. 2. Using a 3/32 ball-end hex drive (angle alignment of screws), unfasten two #4-40 cap screws. 3. Unlock tube clamp. 4. Unplug tube after unlocking tube clamp. Figure 7–60. Replacing the Oxygen Sensor Capillary 7-56 48iQ Instruction Manual Thermo Scientific Servicing Optional DMC Oxygen Sensor Figure 7–61. Replacing the Capillary pt 2 5. Replace capillary and reassemble in reverse order. Thermo Scientific 48iQ Instruction Manual 7-57 Servicing Optional DMC Oxygen Sensor Oxygen Sensor Replacement Use the following to replace the oxygen sensor. Equipment required: Phillips drive, #2 1. Remove the oxygen sensor DMC from the instrument. Refer to “Oxygen Sensor Removal” on page 7-51. 2. Unplug oxygen sensor cable. Figure 7–62. Replacing the Oxygen Sensor 3. Using a #2 Phillips drive, unfasten three #6-32 flat head screws. 4. Disconnect tubing. 5. Pull out oxygen sensor 6. Replace oxygen sensor and reassemble in reverse order. 7-58 48iQ Instruction Manual Thermo Scientific Chapter 8 System Description The 48iQ deploys a set of modular subsystems that comprise the total instrument function. The core measurements for concentration are contained in Distributed Measurement and Control (DMC) modules. This chapter describes the function and location of the system components in the module framework, including firmware, electronics, and I/O function. The 48iQ system components include: ● ● ● Thermo Scientific Optical Bench DMC ● Optical Bench hardware with bandpass filters, mirrors, and heater cable ● Filter Wheel and Motor sub-assembly ● Filter Wheel Purge ● Detector Preamp ● Infrared source ● Optical bench DMC board Common Electronics ● Power supply ● System Control board ● Backplane board ● Front panel ● I/O (optional) Peripherals Support System ● Fan (on rear panel) ● STEP POL board ● Sample Pump ● Solenoid valve panel (optional) ● Flow Pressure DMC with flow restricting capillary ● Firmware 48iQ Instruction Manual 8-1 System Description Optical Bench DMC ● Optical Bench DMC Optical Bench Hardware Oxygen Sensor (optional) The Optical Bench DMC contains the key components of the optical measurement that eventually results in CO concentration. The optical bench is an airtight bench that contains the sample gas. It also includes the mirrors that reflect infrared light multiple times across the sample path before detection, to maximize absorption. Heaters are used to maintain the optical bench at a constant temperature. A bandpass filter limits the light entering the optical bench to a narrow band of the infrared within which CO absorbs. Filter Wheel Motor A gas filter wheel contains samples of CO and N2 gas with a chopper disk. The wheel is rotated so that infrared light is periodically interrupted to produce a modulated signal upon detection. Differentiating the light through the CO and N2 components of the wheel, in the presence of CO in the optical bench, allow the determination of sample CO absorption and concentration. The chopper motor rotates the gas filter wheel and chopper disk at a uniform speed. A separate optical switch assembly detects the position of the filter wheel for synchronizing the modulated signal and for checking the chopper motor speed. Filter Wheel Purge 8-2 48iQ Instruction Manual The filter wheel purge includes a housing attached between the optical bench and the motor plate. It surrounds the gas correlation wheel and allows purging the area around the gas correlation wheel with instrument air or a gas other than that present in the local atmosphere. This increases reliability in the presence of contaminants that could interfere with the analytical process. Figure 8–1 shows how the filter wheel purge is configured within the instrument for an external purge gas supply. The instrument’s default configuration allows for active flow of in instrument air through the filter wheel purge. Thermo Scientific System Description Optical Bench DMC Figure 8–1. 48iQ Flow Schematic with Filter Wheel Purge Calibration Note The stability of the purge gas is very important. Since this gas is in the same optical path as the sample, changes in the composition of the purge gas can change the calibration of the instrument. Therefore, either zero air or a non-toxic dry inert gas, such as nitrogen, is required as the purge gas. A constant purge flow of approximately 140 cc/min is recommended for optimum performance. This is produced by feeding a purge gas to the rear panel bulkhead at a constant pressure of 10 psig. A fitting with a 0.010inch laser drilled orifice delivers the required 140 cc/min purge flow. Flows greater than this are not recommended due to unstable cooling effects on the IR source. Lower flows are acceptable as long as the purge housing is adequately purged for the application. ▲ Detector Preamp The detector/preamplifier assembly converts infrared light, carrying modulation and CO sample absorption, into an amplified electrical signal that undergoes processing. Infrared Source The infrared light source is a special wire-wound resistor operated at high temperature to generate broadband infrared radiation. Optical Bench DMC Board Thermo Scientific A single PCBA with microprocessor provides active controls for the above elements, performs preliminary data processing, and generates registers that interact with the higher level system controls. 48iQ Instruction Manual 8-3 System Description Common Electronics Common Electronics The common electronics contain the core computational and power routing hardware for the 48iQ, and is replicated throughout other iQ series products (Figure 8–2). It also contains front panel display, the USB ports, the Ethernet port, and the optional I/O interfaces (RS-485, analog, and digital). Figure 8–3 shows the PCBA interconnect structure for the 48iQ, including options. The modular design of the instrument is conveyed in the architecture. Brief descriptions of the specific PCBAs follow. 8-4 48iQ Instruction Manual Thermo Scientific Thermo Scientific MFC 1 MFC 2 MFC 3 ANALOG I/O BOARD GND POL 1, 24V POWER POL 1 DATA BOARD DMC 1 COMMUNICATIONS Not all connections apply to all Model iQ instruments. +24V Fan Measurement Case Backplane LAN USB DIGITAL I/O BOARD LINE POWER FILTER PERIPHERAL'S 24V POWER 1 DMC 2 SUPPORT BOARD POL 2 DATA POL 2, 24V POWER BACKPLANE BOARD RESET 24V POWER 2 A/C OUT FRONT USB PORT BOARD DISPLAY BOARD 48VDC 24VDC A/C OUT FRONT PANEL SWITCH A/C IN GROUND TAB SYSTEM CONTROLLER BOARD "B" "A" - iQ Series Common Platform FRONT PANEL LEDS TOUCH SCREEN LCD DISPLAY +48V POWER SUPPLY (Only if 48V is required) +24V POWER SUPPLY System Description Common Electronics Figure 8–2. Common System Interconnect Diagram 48iQ Instruction Manual 8-5 8-6 48iQ Instruction Manual Sample Sol Pump Fan Zero Sol Span Sol Measurement Case Backplane 24V Fan POL 1, 24V POWER Heater POL 1 DATA Step Pol Module HEATER 48 Optical Bench DMC Flow Pressure DMC DMC 1 Optical Feedback Motor M 48 Preamp IR Source iQ Series 48 Oxygen Sensor Oxygen Sensor DMC System Description Common Electronics Figure 8–3. 48iQ System Interconnect Diagram Thermo Scientific System Description Common Electronics Power Supply Front Panel I/O and Communication Components All electronics operate from a universal VDC supply, which is capable of auto-sensing the input voltage and working over all specified operating ranges. The 48iQ contains a 24 VDC channel for most electronics operation, including the pump and fan, and a 48 VDC channel dedicated specifically for optical bench heating. Front panel electronic components include the touch screen display, the on off switch, and two indicator LEDs for power and alarm status, as described in operational detail in Chapter 2, “Installation and Setup”. The iQ series instruments provide a number of methods for communicating the instrument results to the operator or external equipment. Every iQ series instrument includes a front panel display, 3 USB ports, and one Ethernet data port as standard equipment. In addition, optional RS-232/485, analog I/O, and digital I/O ports are available to provide data to external systems as described in Chapter 9, “Connecting External Devices”. The front panel GUI allows the operator to configure these output communication channels as described in Chapter 3, “Operation”. System Controller Board The System Controller Board (SCB) contains the main processor, power supplies, and a sub-processor, and serves as the communication hub for the instrument. The SCB receives operator inputs from the front panel GUI and/or over optional I/O connections on the rear panel. The SCB sends commands to the other boards to control the functions of the instrument and to collect measurement and diagnostic information. The SCB outputs instrument status and measurement data to the GUI, Ethernet/USB, and to the optional rear-panel I/O. The SCB plugs into the backplane via a single connector and has physical retainers to secure placement. Backplane Board The backplane board provides the routing and conditioning for +24 VDC (optional +48 VDC) and RS-485 communications within the instrument. It hosts the System Controller Board (SCB) and Peripherals Support Board (PSB) via direct plug ins, and similarly hosts optional I/O (communication, analog, and digital) with rear panel interfaces via direct plug in. It has connections for RS-485 communication with and powering of DMCs and the STEP POL Module. It additionally routes the front panel display and driver, external USB and Ethernet. Thermo Scientific 48iQ Instruction Manual 8-7 System Description Peripherals Support System Peripherals Support System The peripherals support system operates those additional devices that are needed, but do not require special feedback control or processing. These components are connected to a Peripherals Support Board (PSB). The PSB microprocessor regulates the timing and health of such devices, and generates registers that interact with the higher level system controls. Fan STEP POL Board Sample Pump Solenoid Valve Panel (optional) Flow/Pressure DMC The chassis fan provides air cooling of the active electronic components. The STEP POL board provides high/low outputs for continuous operation or on/off states. The STEP POL board contains the basic circuitry to provide a programmable load to passive devices, either continuously, or on user or automated command. In the iQ Series instruments, the pump, solenoids, etc., are controlled off of the STEP POL board from commands generated via the PSB. Internal vacuum pump for generating air/sample through the instrument. Optional solenoid valves for switching between sample, zero, and span gases, and other optional components. The Flow/Pressure DMC is used measure instrument pressures that assure proper flow regulation and for sample pressure within the measurement bench for pressure corrections and compensation. The DMC includes two pressure sensors that read 0860 mmHg. These sensors are used with the coupled restricting capillary for flow control along with the downstream sample pump. The pressure differential determines the flow through the capillary. The upstream pressure is the measurement bench pressure, while the downstream pressure is at the pump inlet pressure. Firmware 8-8 48iQ Instruction Manual Like the hardware, the firmware is modular and located within microprocessors distributed throughout the instrument. In the 48iQ, microprocessors containing firmware are located as follows: ● Optical Bench DMC ● Flow/Pressure DMC Thermo Scientific System Description Oxygen Sensor (optional) ● Peripherals Support Board ● Optional I/O (Communications, Analog, and Digital) ● Optional Oxygen Sensor The firmware contains the active controls for their application, as well as self-identification and configuration for “plug and play” style operation. Each are associated with specific registers of two types: ● Modbus registers that are communicated from each microprocessor to the System Controller Board (SCB) via internal RS-485 ● SNMP registers that are maintained in the software and SCB for health and data processing computation The Modbus communication system operates on 1 second intervals. Within those intervals, data treatment like integration (whether analog or digital) and servo control, are embedded in the module firmware. The SCB receives the 1 second updates for higher level “software” processing and control via SNMP registers, some of which is interfaced with the front panel Graphical User Interface (GUI). In addition to the operating registers, the 48iQ stores a historical data log in a MySQL database. The memory is provided on the same μSD card where the operating software resides, for which there is capability to store up to a year of data at 1 minute intervals. Chapter 3, “Operation” describes how this database is accessed and used including external memory downloads. Oxygen Sensor (optional) Thermo Scientific The 48iQ can be configured with an optional DMC based Oxygen (O2) Sensor. This sensor is a paramagnetic sensor for O2 concentration measurement and CO correction. This option allows the user to correct the CO readings for the amount of oxygen in the sample. Selectable O2 concentrations can be used as the correction factor. 48iQ Instruction Manual 8-9 Chapter 9 Optional Equipment The 48iQ is available with the following options: Connecting External Devices Several components are available for connecting external devices. These connection options consist of three plug-in boards: ● Communication Board ● Analog I/O Board ● Digital I/O Board Figure 9–1. I/O Expansion Replacement Boards Thermo Scientific 48iQ Instruction Manual 9-1 Optional Equipment Connecting External Devices Communication Board RS-232/RS-485 Port The communication board consists of: ● RS-232/485 Port ● RS-485 External Accessory Port The RS-232/RS-485 port uses a 9-pin serial connector with a bi-directional serial interface that can be configured for either RS-232 or RS-485 communication. Figure 9–2. RS-232/RS-485 Port Table 9–1. RS-232/RS-485 Port Terminal Assignment 9-2 48iQ Instruction Manual Terminal Number Signal Name 1 No Connect 2 RX/RS485_RX_P 3 TX/RS485_TX_N 4 No Connect 5 GND 6 No Connect 7 RTS/RS485_TX_P 8 CTS/RS485_RX_N 9 No Connect Thermo Scientific Optional Equipment Connecting External Devices RS-485 External Accessory Port The RS-485 external accessory port uses a 15-pin serial connector for communication with external smart devices. Figure 9–3. RS-485 External Accessory Port Table 9–2. RS-485 External Accessory Port Terminal Assignment Thermo Scientific Terminal Number Signal Name 1 EXT_RS485_RX_N 2 EXT_RS485_RX_P 3 +5V (Fused @0.4A) 4 +5V (Fused @0.4A) 5 +5V (Fused @0.4A) 6 GND 7 GND 8 GND 9 EXT_RS485_TX_N 10 EXT_RS485_TX_P 11 +24V (Fused @0.4A) 12 +24V (Fused @0.4A) 13 +24V (Fused @0.4A) 14 +24V (Fused @0.4A) 15 +24V (Fused @0.4A) 48iQ Instruction Manual 9-3 Optional Equipment Connecting External Devices Analog I/O Board Analog Voltage Inputs The Analog I/O Board consists of: ● 4 Isolated Analog Voltage Inputs, Input Voltage Range: 0–10 V ● 6 Isolated Analog Voltage Outputs, Three Ranges: 0–1.0 V, 0–5.0 V, 0–10 V ● 6 Isolated Analog Current Outputs, Two Ranges: 0mA–20mA, 4mA– 20mA Table 9–3 lists the analog voltage inputs are used to monitor four external 0–10V signals. Figure 9–4. Analog Voltage Inputs Table 9–3. Analog Voltage Inputs Assignment 9-4 48iQ Instruction Manual Terminal Number Signal Name 1 Analog In 1 2 Analog GND 3 Analog In 2 4 Analog GND 5 Analog In 3 6 Analog GND 7 Analog In 4 8 Analog GND Thermo Scientific Optional Equipment Connecting External Devices Analog Voltage Outputs There are six globally isolated, 16-bit, Analog Output channels, each with a Voltage Output, a Current Output and a common Return (isolated ground). The Analog Outputs are configured through the software control registers to select Voltage Output ranges 0–1 V, 0–5 V or 0–10 V, as well as Current Output ranges 0–20 mA or 4–20 mA. The maximum allowable load for each Current Output is 1000 Ω. All Voltage Outputs and Current Outputs are continuously monitored separately for accuracy. The Analog Outputs may be used to control and report parameters pertinent to the analyzers’ measured functions. Figure 9–5. Analog Voltage and Current Thermo Scientific 48iQ Instruction Manual 9-5 Optional Equipment Connecting External Devices Table 9–4. Analog Voltage and Current Assignment Analog Output Calibration Terminal Number Signal Name 1 Current Out 1 2 Voltage Out 1 3 C/V Return 1 4 Current Out 2 5 Voltage Out 2 6 C/V Return 2 7 Current Out 3 8 Voltage Out 3 9 C/V Return 3 10 Current Out 4 11 Voltage Out 4 12 C/V Return 4 13 Current Out 5 14 Voltage Out 5 15 C/V Return 5 16 Current Out 6 17 Voltage Out 6 18 C/V Return 6 The iQ series instruments provide for the ability to calibrate the analog outputs (both voltage and current) of the instruments. The basic procedure for both voltage and current are the same using the following procedure: ● Complete the connections of the recording device to the desired analog output channel. (See page 9-5 for the channel information). ● Calibrate the output channel low level. Note When calibrating the current output when using the 0-20 mA scale, the low level will be set to 4 mA due to the inability to adjust the actual current output to below zero. ▲ ● 9-6 48iQ Instruction Manual Calibrate the output channel full scale. Thermo Scientific Optional Equipment Connecting External Devices Analog Output Zero Calibration Use the following procedure to calibrate the output channel to low level. This analog output calibration procedure reflects the zero calibration for analog output voltage for demonstration purposes. To calibrate the 4 mA current calibration, follow the same procedure, by selecting the 4 mA current calibration option. Note This adjustment should only be performed by an instrument service technician. ▲ 1. From the Home screen, choose Settings>Communications>Analog I/O>Analog Out Calibration. 2. Depending on the output type being used, select either Analog Out Zero Calibration (Voltage) or Analog Out 4.000 mA Calibration (Current). 3. A confirmation screen is presented. Select Continue to proceed with the calibration or Return to Previous Screen. Thermo Scientific 48iQ Instruction Manual 9-7 Optional Equipment Connecting External Devices 4. There are six columns for each of the six available output channels: ● ● ● ● Output (V): Displays the actual output level at the terminal of the analog output board. For analog voltage, this value will default at zero. For analog current, this value will default at 4 mA. Decrease  and Decrease : Decreases the output by coarse or fine amounts Increase  and Increase : Increases the output by coarse and fine amounts. Commit: Accepts the changes to the analog output levels. 5. For the desired analog output channel, increase or decrease the output until the reading on the recording device indicates the proper value. 6. After making changes to the output levels, the commit button will turn green. To accept the changes, press the Commit button. To revert to the previous values, press the back button to return to the previous analog output calibration screen. 9-8 48iQ Instruction Manual Thermo Scientific Optional Equipment Connecting External Devices Analog Output Full Scale Calibration Use the following procedure to calibrate the output channel to full scale. This analog output calibration procedure reflects the full scale calibration for analog output voltage for demonstration purposes. To calibrate the 20 mA current calibration, follow the same procedure, by selecting the 20 mA current calibration option. Note This adjustment should only be performed by an instrument service technician. ▲ 1. From the Home screen, choose Settings>Communications>Analog I/O>Analog Output Calibration. 2. Depending on the output type being used, select either Analog Out Full Scale Calibration (Voltage) or Analog Out 20.000 mA Calibration (Current). 3. A confirmation screen is presented. Select Continue to proceed with the calibration or Return to Previous Screen. Thermo Scientific 48iQ Instruction Manual 9-9 Optional Equipment Connecting External Devices 4. There are six columns for each of the six available output channels: ● ● ● ● Output (V): Displays the actual output level at the terminal of the analog output board. For analog voltage, this value will default at the setting of the output channel, 1, 5, or 10 V. For analog current, this value will default at 20 mA. Decrease  and Decrease : Decreases the output by coarse or fine amounts Increase  and Increase : Increases the output by coarse and fine amounts. Commit: Accepts the changes to the analog output levels. 5. For the desired analog output channel, increase or decrease the output until the reading on the recording device indicates the proper value. 6. After making changes to the output levels, the commit button will turn green. To accept the changes, press the Commit button. To revert to the previous values, press the back button to return to the previous analog output calibration screen. 9-10 48iQ Instruction Manual Thermo Scientific Optional Equipment Connecting External Devices Digital I/O Board Digital Inputs The digital I/O board consists of: ● 16 Digital Inputs (18 pin connector) ● 10 Digital Relay Switches (20 pin connector) ● 8 Valve Driver Outputs (16 pin connector) The digital inputs are TTL (3 V or 5 V) compatible and are pulled high within the instrument. The active state can be user defined in firmware. ● Logic Low Threshold: 0.8 V ● Logic High Threshold: 2.0 V ● Absolute allowable input voltages: -0.5 to 5.5 V Figure 9–6. Digital Inputs Thermo Scientific 48iQ Instruction Manual 9-11 Optional Equipment Connecting External Devices Table 9–5. Digital Inputs Terminal Assignment Terminal Number Signal Name COMMON 1 Digital In 1 2 Digital In 2 3 Digital In 3 4 Digital In 4 5 Digital In 5 6 Digital In 6 7 Digital In 7 8 Digital In 8 9 Digital In 9 10 Digital In 10 11 Digital In 11 12 Digital In 12 13 Digital In 13 14 Digital In 14 15 Digital In 15 16 Digital In 16 COMMON 9-12 48iQ Instruction Manual Thermo Scientific Optional Equipment Connecting External Devices Digital Relay Switches Table 9–6 lists the digital relay switches. ● Maximum Voltage: 300 VDC ● Maximum Current: 500 mA ● Fuse: 800 mA Figure 9–7. Digital Relay Switches Thermo Scientific 48iQ Instruction Manual 9-13 Optional Equipment Connecting External Devices Table 9–6. Digital Relay Switch Assignment 9-14 48iQ Instruction Manual Terminal Number Signal Name 1A Relay 1A 1B Relay 1B 2A Relay 2A 2B Relay 2B 3A Relay 3A 3B Relay 3B 4A Relay 4A 4B Relay 4B 5A Relay 5A 5B Relay 5B 6A Relay 6A 6B Relay 6B 7A Relay 7A 7B Relay 7B 8A Relay 8A 8B Relay 8B 9A Relay 9A 9B Relay 9B 10A Relay 10A 10B Relay 10B Thermo Scientific Optional Equipment Connecting External Devices Valve Driver Outputs Table 9–7 lists the valve driver outputs. ● Actual Output Voltage: 2224 VDC ● Maximum Current: 300 mA ● Both positive and negative outputs are protected from over voltage and over current by 500 mA fuses. Figure 9–8. Valve Driver Outputs Thermo Scientific 48iQ Instruction Manual 9-15 Optional Equipment Connecting External Devices Table 9–7. Valve Driver Outputs Assignment Terminal Number Signal Name 1+ Valve Drive 1+ 1- Valve Drive 1- 2+ Valve Drive 2+ 2- Valve Drive 2- 3+ Valve Drive 3+ 3- Valve Drive 3- 4+ Valve Drive 4+ 4- Valve Drive 4- 5+ Valve Drive 5+ 5- Valve Drive 5- 6+ Valve Drive 6+ 6- Valve Drive 6- 7+ Valve Drive 7+ 7- Valve Drive 7- 8+ Valve Drive 8+ 8- Valve Drive 8- Note Intended for 24 V valves. These outputs will also drive any DC load of 2224 VDC, up to 300 mA. ▲ 9-16 48iQ Instruction Manual Thermo Scientific Optional Equipment Internal Zero/Span Assembly Internal Zero/Span Assembly With the internal zero/span assembly option, a source of span gas is connected to the SPAN port and a source of zero air is connected to the ZERO port. Zero and span gas should be supplied at atmospheric pressure. It may be necessary to use an atmospheric dump bypass plumbing arrangement to accomplish this. Figure 9–9 shows how this option is integrated with the instrument. Figure 9–9. 48iQ Flow Schematic with Zero Span and Zero Air Scrubber Thermo Scientific 48iQ Instruction Manual 9-17 Optional Equipment Internal Oxygen (O2) Sensor Internal Oxygen (O2) Sensor The Internal Oxygen (O2) Sensor option provides a paramagnetic sensor for O2 concentration measurement and CO correction. This option allows the user to correct the CO readings for the amount of oxygen in the sample. Selectable O2 concentrations can be used as the correction factor. Figure 9–10 shows how this option is integrated with the 48iQ. Figure 9–10. 48iQ Flow Schematic with Internal O2 Sensor 9-18 Internal Zero Air Scrubber The internal air scrubber is mounted inside the instrument and provides a source of zero air. Figure 9–9 shows how this option is integrated with the instrument. PTFE Particulate Filter A 510 micron pore size, two-inch diameter PTFE element is available for the 48iQ. This filter should be installed just prior to the SAMPLE bulkhead. When using a filter, all calibrations and span checks must be performed through the filter. 48iQ Instruction Manual Thermo Scientific Appendix A Safety, Warranty, and WEEE Safety Safety and Equipment Damage Alerts Review the following information carefully before using the instrument. This manual provides specific information on how to operate the instrument, however if the instrument is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. This manual contains important information to alert you to potential safety hazards and risks of equipment damage. Refer to the following types of alerts you may see in this manual. Safety and Equipment Damage Alert Descriptions  Description Alert  A hazard is present that will result in death or serious personal injury if the warning is ignored. ▲  A hazard is present or an unsafe practice can result in serious personal injury if the warning is ignored. ▲  The hazard or unsafe practice could result in minor to moderate personal injury if the warning is ignored. ▲   Equipment Damage The hazard or unsafe practice could result in property damage if the warning is ignored. ▲ Safety and Equipment Damage Alerts in this Manual  Description Alert  If the equipment is operated in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. ▲  The service procedures in this manual are restricted to qualified service personnel only. ▲   Equipment Damage Do not attempt to lift the analyzer by the cover or other external fittings. ▲ This adjustment should only be performed by an instrument service technician. ▲ Thermo Scientific 48iQ Instruction Manual A-1 Safety, Warranty, and WEEE Warranty Warranty Seller warrants that the Products will operate or perform substantially in conformance with Seller's published specifications and be free from defects in material and workmanship, when subjected to normal, proper and intended usage by properly trained personnel, for the period of time set forth in the product documentation, published specifications or package inserts. If a period of time is not specified in Seller’s product documentation, published specifications or package inserts, the warranty period shall be one (1) year from the date of shipment to Buyer for equipment and ninety (90) days for all other products (the "Warranty Period"). Seller agrees during the Warranty Period, to repair or replace, at Seller's option, defective Products so as to cause the same to operate in substantial conformance with said published specifications; provided that (a) Buyer shall promptly notify Seller in writing upon the discovery of any defect, which notice shall include the product model and serial number (if applicable) and details of the warranty claim; (b) after Seller’s review, Seller will provide Buyer with service data and/or a Return Material Authorization (“RMA”), which may include biohazard decontamination procedures and other product-specific handling instructions; and (c) then, if applicable, Buyer may return the defective Products to Seller with all costs prepaid by Buyer. Replacement parts may be new or refurbished, at the election of Seller. All replaced parts shall become the property of Seller. Shipment to Buyer of repaired or replacement Products shall be made in accordance with the Delivery provisions of the Seller’s Terms and Conditions of Sale. Consumables, including but not limited to lamps, fuses, batteries, bulbs and other such expendable items, are expressly excluded from the warranty under this warranty. Notwithstanding the foregoing, Products supplied by Seller that are obtained by Seller from an original manufacturer or third party supplier are not warranted by Seller, but Seller agrees to assign to Buyer any warranty rights in such Product that Seller may have from the original manufacturer or third party supplier, to the extent such assignment is allowed by such original manufacturer or third party supplier. In no event shall Seller have any obligation to make repairs, replacements or corrections required, in whole or in part, as the result of (i) normal wear and tear, (ii) accident, disaster or event of force majeure, (iii) misuse, fault or negligence of or by Buyer, (iv) use of the Products in a manner for which they were not designed, (v) causes external to the Products such as, but not limited to, power failure or electrical power surges, (vi) improper storage and handling of the Products or (vii) use of the Products in combination with equipment or software not supplied by Seller. If Seller determines that Products for which Buyer has requested warranty services are not covered by the warranty hereunder, Buyer shall pay or reimburse Seller for all costs of investigating and responding to such request at Seller's then A-2 48iQ Instruction Manual Thermo Scientific Safety, Warranty, and WEEE Warranty prevailing time and materials rates. If Seller provides repair services or replacement parts that are not covered by the warranty provided in this warranty, Buyer shall pay Seller therefor at Seller's then prevailing time and materials rates. ANY INSTALLATION, MAINTENANCE, REPAIR, SERVICE, RELOCATION OR ALTERATION TO OR OF, OR OTHER TAMPERING WITH, THE PRODUCTS PERFORMED BY ANY PERSON OR ENTITY OTHER THAN SELLER WITHOUT SELLER'S PRIOR WRITTEN APPROVAL, OR ANY USE OF REPLACEMENT PARTS NOT SUPPLIED BY SELLER, SHALL IMMEDIATELY VOID AND CANCEL ALL WARRANTIES WITH RESPECT TO THE AFFECTED PRODUCTS. THE OBLIGATIONS CREATED BY THIS WARRANTY STATEMENT TO REPAIR OR REPLACE A DEFECTIVE PRODUCT SHALL BE THE SOLE REMEDY OF BUYER IN THE EVENT OF A DEFECTIVE PRODUCT. EXCEPT AS EXPRESSLY PROVIDED IN THIS WARRANTY STATEMENT, SELLER DISCLAIMS ALL OTHER WARRANTIES, WHETHER EXPRESS OR IMPLIED, ORAL OR WRITTEN, WITH RESPECT TO THE PRODUCTS, INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. SELLER DOES NOT WARRANT THAT THE PRODUCTS ARE ERROR-FREE OR WILL ACCOMPLISH ANY PARTICULAR RESULT. Thermo Scientific 48iQ Instruction Manual A-3 Safety, Warranty, and WEEE WEEE Compliance WEEE Compliance This product is required to comply with the European Union’s Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is marked with the following symbol: Thermo Fisher Scientific has contracted with one or more recycling/disposal companies in each EU Member State, and this product should be disposed of or recycled through them. Further information on Thermo Fisher Scientific’s compliance with these Directives, the recyclers in your country, and information on Thermo Fisher Scientific products which may assist the detection of substances subject to the RoHS Directive are available at: www.thermoscientific.com/WEEERoHS. WEEE Symbol The following symbol and description identify the WEEE marking used on the instrument and in the associated documentation. Symbol Description Marking of electrical and electronic equipment which applies to electrical and electronic equipment falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market after 13 August 2005. ▲ A-4 48iQ Instruction Manual Thermo Scientific Appendix B Quick Reference List of Figures Thermo Scientific Figure 1–1. 48iQ Front ........................................................................................ 1-2  Figure 1–2. 48iQ Flow Schematic ....................................................................... 1-4  Figure 1–3. 48iQ Flow Schematic with Zero Span and Zero Air Scrubber ........ 1-4  Figure 1–4. Bench Mount Assembly (dimensions in inches [mm]) .................... 1-7  Figure 1–5. Rack Mount Assembly (dimensions in inches [mm]) ...................... 1-8  Figure 1–6. Rack Mount Requirements .............................................................. 1-9  Figure 1–7. Rack Requirements Part 2 ............................................................... 1-9  Figure 2–1. Removing the Cover......................................................................... 2-2  Figure 2–2. Installing Feet .................................................................................. 2-3  Figure 2–3. Removing the Front Panel ............................................................... 2-4  Figure 2–4. Installing Ears and Handles ............................................................. 2-5  Figure 2–5. 48iQ Rear Panel ............................................................................... 2-7  Figure 2–6. Atmospheric Dump Bypass Plumbing ............................................. 2-7  Figure 2–7. Front Panel and Touchscreen Display ............................................. 2-8  Figure 4–1. Calibration Flow Schematic ............................................................ 4-3  Figure 5–1. Single Stage Pump .......................................................................... 5-2  Figure 5–2. Pump Rebuilding .............................................................................. 5-4  Figure 5–3. Removing the Field Mirror ............................................................... 5-6  Figure 7–1. Properly Grounded Antistatic Wrist Strap ...................................... 7-2  Figure 7–2. 48iQ Component Layout Top View .................................................. 7-4  Figure 7–3. 48iQ Component Layout Side View................................................. 7-4  Figure 7–4. Replacing the Fuses......................................................................... 7-5  Figure 7–5. Start with Top Right Corner of Fan Cover ....................................... 7-6  Figure 7–6. Removing the Fan Cover .................................................................. 7-6  Figure 7–7. Unplugging the Fan Cable ............................................................... 7-7  Figure 7–8. Replacing the Fan ............................................................................ 7-8  Figure 7–9. Unplugging the Fan Cable ............................................................... 7-9  Figure 7–10. Unplugging the DMC Cable......................................................... 7-10  Figure 7–11. Unfasten Hardware Front for Measurement Side Removal ....... 7-10  Figure 7–12. Unfasten Hardware Rear for Measurement Side Removal ........ 7-11  Figure 7–13. Replacing the LCD Module .......................................................... 7-12  Figure 7–14. Remove Electrical Cables from LCD ............................................ 7-13  48iQ Instruction Manual B-1 Quick Reference List of Figures Figure 7–15. I/O Replacement, Arm ................................................................. 7-14  Figure 7–16. I/O Replacement, Remove Board ................................................ 7-14  Figure 7–17. I/O Replacement, Install .............................................................. 7-15  Figure 7–18. I/O Replacement, Close Arm Alignment ..................................... 7-15  Figure 7–19. Replacing the Peripherals Support Board ................................... 7-16  Figure 7–20. Flow Pressure Board, Disconnect DMC Cable ............................ 7-17  Figure 7–21. Flow Pressure Board, Screws ...................................................... 7-18  Figure 7–22. Remove Pump, Disconnect and Unfasten ................................... 7-20  Figure 7–23. Pump Removal, Keyway............................................................... 7-21  Figure 7–24. Pump replacing, Unfasten Screws .............................................. 7-21  Figure 7–25. Remove Capillary, Disconnect and Unfasten .............................. 7-22  Figure 7–26. Capillary Plate, Keyway ............................................................... 7-23  Figure 7–27. Capillary and O-Ring Replace ...................................................... 7-23  Figure 7–28. Removing Power Supply .............................................................. 7-25  Figure 7–29. Replacing Power Supply .............................................................. 7-25  Figure 7–30. Unplug and Unfasten Step POL Board......................................... 7-26  Figure 7–31. Clear Partition Keyway Step POL Board ...................................... 7-27  Figure 7–32. Step POL Board 1 Switch Settings .............................................. 7-28  Figure 7–33. Optional Step POL Board 2 Switch Settings ............................... 7-28  Figure 7–34. DMC Layout.................................................................................. 7-29  Figure 7–35. DMC Removal from Instrument ................................................... 7-30  Figure 7–36. Motor and Filter Removal pt 1 ..................................................... 7-31  Figure 7–37. Motor and Filter Removal (pt 2) ................................................... 7-32  Figure 7–38. Motor and Filter Optical Switch Replacement (pt 3) .................. 7-33  Figure 7–39. Purge Housing Removal from Motor Assembly (pt 4) ................. 7-34  Figure 7–40. Filter Wheel.................................................................................. 7-36  Figure 7–41. Motor Removal from Motor Mount pt 1...................................... 7-37  Figure 7–42. Motor Removal ............................................................................ 7-38  Figure 7–43. Motor Installation Shaft Alignment ............................................ 7-40  Figure 7–44. Bench Removal pt 1 ..................................................................... 7-41  Figure 7–45. Heater Removal ........................................................................... 7-42  Figure 7–46. Preamp Detector Cover Removal pt 1 ......................................... 7-43  Figure 7–47. Preamp/Detector Removal........................................................... 7-44  Figure 7–48. IR Source Cable Disconnect......................................................... 7-46  Figure 7–49. IR Source Assembly Removal ...................................................... 7-47  Figure 7–50. Replacing the Manifold pt 1 ........................................................ 7-48  Figure 7–51. Replacing the Manifold pt 2 ........................................................ 7-49  Figure 7–52. Replacing the Manifold pt 3 ........................................................ 7-49  Figure 7–53. Zero Air Scrubber Replacement .................................................. 7-50  Figure 7–54. Oxygen Sensor Removal pt 1 ....................................................... 7-52  B-2 48iQ Instruction Manual Thermo Scientific Quick Reference List of Tables Figure 7–55. Oxygen Sensor Removal pt 2 ...................................................... 7-52  Figure 7–56. Oxygen Sensor Removal pt 3 ...................................................... 7-53  Figure 7–57. Oxygen Sensor Removal pt 4 ...................................................... 7-53  Figure 7–58. Replacing the Oxygen Sensor DMC Board ................................. 7-54  Figure 7–59. Replacing the Oxygen Sensor DMC Board pt 2 .......................... 7-55  Figure 7–60. Replacing the Oxygen Sensor Capillary ...................................... 7-56  Figure 7–61. Replacing the Capillary pt 2 ........................................................ 7-57  Figure 7–62. Replacing the Oxygen Sensor ..................................................... 7-58  Figure 8–1. 48iQ Flow Schematic with Filter Wheel Purge ............................... 8-3  Figure 8–2. Common System Interconnect Diagram ......................................... 8-5  Figure 8–3. 48iQ System Interconnect Diagram ................................................ 8-6  Figure 9–1. I/O Expansion Replacement Boards ................................................ 9-1  Figure 9–2. RS-232/RS-485 Port......................................................................... 9-2  Figure 9–3. RS-485 External Accessory Port ...................................................... 9-3  Figure 9–4. Analog Voltage Inputs ..................................................................... 9-4  Figure 9–5. Analog Voltage and Current ............................................................ 9-5  Figure 9–6. Digital Inputs ................................................................................. 9-11  Figure 9–7. Digital Relay Switches .................................................................. 9-13  Figure 9–8. Valve Driver Outputs ..................................................................... 9-15  Figure 9–9. 48iQ Flow Schematic with Zero Span and Zero Air Scrubber ...... 9-17  Figure 9–10. 48iQ Flow Schematic with Internal O2 Sensor ............................ 9-18  List of Tables Thermo Scientific Table 1–1. 48iQ Specifications ........................................................................... 1-5  Table 1–2. 48iQ Optional Internal Oxygen Sensor Specifications ..................... 1-6  Table 3–1. Data Logging Variables .................................................................. 3-39  Table 3–2. Streaming Data Variables .............................................................. 3-42  Table 6–1. 48iQ Troubleshooting Guide ............................................................. 6-1  Table 9–1. RS-232/RS-485 Port Terminal Assignment ...................................... 9-2  Table 9–2. RS-485 External Accessory Port Terminal Assignment ................... 9-3  Table 9–3. Analog Voltage Inputs Assignment .................................................. 9-4  Table 9–4. Analog Voltage and Current Assignment ......................................... 9-6  Table 9–5. Digital Inputs Terminal Assignment ............................................... 9-12  Table 9–6. Digital Relay Switch Assignment ................................................... 9-14  Table 9–7. Valve Driver Outputs Assignment .................................................. 9-16  48iQ Instruction Manual B-3 Appendix C GNU Lesser General Public License GNU Lesser General Public License Version 2.1, February 1999 Copyright (C) 1991, 1999 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. The Open Source code used in the development of this product will be provided for a period of 3-years from date of purchase to the original purchaser provided they supply Thermo Fisher Scientific with the applicable serial number for the product the Open Source code is being requested for. [This is the first released version of the Lesser GPL. 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