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General Monitors FL4000H Multi-Spectral Infrared Flame Detector Instruction Manual
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Model FL4000H
Multi-Spectral Infrared
Flame Detector
The information and technical data disclosed in
this document may be used and disseminated
only for the purposes and to the extent
specifically authorized in writing by General
Monitors.
Instruction Manual
09-14
General Monitors reserves the right to change
published specifications and designs without
prior notice.
MANFL4000NH
Part No.
Revision
MANFL4000NH
L/09-14
Model FL4000H
This page intentionally left blank
ii
Model FL4000H
Table of Contents
MODEL FL4000H ......................................................................................................................... 1
MULTI-SPECTRAL INFRARED ................................................................................................... 1
FLAME DETECTOR ..................................................................................................................... 1
TABLE OF FIGURES ................................................................................................................... V
TABLE OF TABLES.................................................................................................................... VI
QUICK START GUIDE ............................................................................................................... VII
Mounting and Wiring the Detector ........................................................................................................ vii
Applying Power to the Detector ............................................................................................................. ix
Testing the Detector Using a Test Lamp ................................................................................................ x
ABOUT THIS MANUAL ............................................................................................................... X
Format Conventions ................................................................................................................................ x
Other Sources of Help............................................................................................................................. x
1.0 BEFORE INSTALLATION .................................................................................................... 11
1.1
System Integrity Verification .................................................................................................... 11
1.2
Commissioning Safety Systems .............................................................................................. 11
1.3
Special Warnings ..................................................................................................................... 11
1.4
Glossary of Terms .................................................................................................................... 12
2.0 PRODUCT OVERVIEW ........................................................................................................ 14
2.1
General Description ................................................................................................................. 14
2.2
Features and Benefits .............................................................................................................. 14
2.3
Applications .............................................................................................................................. 15
2.4
Principle of Operation............................................................................................................... 15
3.0 INSTALLATION .................................................................................................................... 21
3.1
Unpacking the Equipment ........................................................................................................ 21
3.2
Required Tools ......................................................................................................................... 21
3.3
Detector Location Guidelines ................................................................................................... 22
3.4
Field Wiring Procedure ............................................................................................................ 26
3.5
Detector Mounting and Installation .......................................................................................... 27
3.6
Terminal Connections .............................................................................................................. 29
3.7
Switch Selectable Options ....................................................................................................... 36
3.8
Powering of the FL4000H ........................................................................................................ 38
3.9
Power up Grounding of the Test and Relay Reset Lines......................................................... 38
4.0 MODBUS INTERFACE ........................................................................................................ 39
4.1
Introduction .............................................................................................................................. 39
4.2
Communication Slave Address ................................................................................................ 39
iii
Model FL4000H
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
Baud Rate ................................................................................................................................ 39
Data Format ............................................................................................................................. 39
Supported Function Codes ......................................................................................................40
Modbus Read Status Protocol (Query / Response)................................................................. 40
Modbus Write Command Protocol (Query / Response) .......................................................... 41
Exception Responses and Exception Codes ........................................................................... 41
Command Register Locations.................................................................................................. 43
Command Register Details ......................................................................................................47
5.0 MAINTENANCE ................................................................................................................... 58
5.1
General Maintenance ............................................................................................................... 58
5.2
Cleaning the Sapphire Window................................................................................................ 58
5.3
Sensitivity Check ...................................................................................................................... 59
5.4
Storage ..................................................................................................................................... 59
6.0 TROUBLESHOOTING.......................................................................................................... 60
6.1
Troubleshooting Chart ............................................................................................................. 60
6.2
Final Assembly ......................................................................................................................... 61
7.0 CUSTOMER SUPPORT ....................................................................................................... 62
7.1
General Monitors’ Offices ........................................................................................................ 62
7.2
Other Sources of Help ............................................................................................................. 62
8.0 APPENDIX ............................................................................................................................ 63
8.1
Warranty ................................................................................................................................... 63
8.2
Specifications ........................................................................................................................... 63
8.3
Regulatory Information ............................................................................................................. 65
8.4
Response to False Stimuli ....................................................................................................... 66
8.5
Spare Parts and Accessories...................................................................................................67
9.0 APPENDIX A ........................................................................................................................ 70
iv
Model FL4000H
Table of Figures
Figure 1: FL4000H Housing .................................................................................................................................. vii
Figure 2: Mounting Instruction .............................................................................................................................. viii
Figure 3: Wall Mounting Assembly ....................................................................................................................... viii
Figure 4: Bracket Assembly....................................................................................................................................ix
Figure 5: Field Terminations Showing Wiring for Fire Alarm Systems ...................................................................ix
Figure 6: FL4000H Front View ............................................................................................................................. 14
Figure 7: Test Lamp Flashing Option (Auto-detection) ........................................................................................ 19
Figure 8: Grounding of Test Wire or Modbus Command Options ........................................................................ 20
Figure 9: Horizontal FOV – n-Heptane – High Sensitivity. ................................................................................... 23
Figure 10: Horizontal FOV – n-Heptane – Medium Sensitivity. ............................................................................ 23
Figure 11: Horizontal FOV – n-Heptane – Low Sensitivity. .................................................................................. 24
Figure 12: Vertical FOV – n-Heptane – High Sensitivity. ..................................................................................... 24
Figure 13: Vertical FOV – n-Heptane – Medium Sensitivity. ................................................................................ 25
Figure 14: Vertical FOV – n-Heptane – Low Sensitivity. ...................................................................................... 25
Figure 15: FL4000H Housing ............................................................................................................................... 26
Figure 16: Detector Mounting and Installation...................................................................................................... 28
Figure 17: Dimensional Drawing .......................................................................................................................... 29
Figure 18: Wire-Strip Lengths............................................................................................................................... 29
Figure 19: Base Housing and Terminal Blocks .................................................................................................... 30
Figure 20: Terminal Connections ......................................................................................................................... 31
Figure 21: Relay Contacts .................................................................................................................................... 32
Figure 22: Wiring Diagram – Reset Relays, Test Mode, & Alarm Test ................................................................ 34
Figure 23: Dipswitch Location .............................................................................................................................. 37
Figure 24: Command Register ............................................................................................................................. 49
Figure 25: Optical Parts to Clean ......................................................................................................................... 58
Figure 26: FL4000H Cross-Section View ............................................................................................................. 61
Figure 27: Rain Guard Installation ........................................................................................................................ 69
Figure 28: Functional Board Located Under TL105 Lamp Assembly .................................................................. 70
v
Model FL4000H
Table of Tables
Table 1: Glossary of Terms .................................................................................................................................. 12
Table 2: Sample Industry Applications ................................................................................................................. 15
Table 3: LED sequence for each operating condition. ......................................................................................... 16
Table 4: Required Tools ....................................................................................................................................... 21
Table 5: Maximum Specified Fields of View at High Sensitivity ........................................................................... 22
Table 6: Sensitivity Settings for n-Heptane .......................................................................................................... 25
Table 7: Terminal Block Connections ................................................................................................................... 30
Table 8: Alarm Relay Terminals ........................................................................................................................... 31
Table 9: Warning Relay Terminals ....................................................................................................................... 32
Table 10: Fault Relay Terminals........................................................................................................................... 33
Table 11: Alarm Reset Terminal ........................................................................................................................... 33
Table 12: Test Mode Terminal.............................................................................................................................. 33
Table 13: Alarm Test Terminals ........................................................................................................................... 34
Table 14: Analog Output Terminal........................................................................................................................ 34
Table 15: Analog Output Levels ........................................................................................................................... 35
Table 16: Maximum Cable Lengths for 250 Ω Inputs ........................................................................................... 35
Table 17: Power Terminals................................................................................................................................... 35
Table 18: Maximum Cable Lengths for +24 VDC ................................................................................................. 35
Table 19: Modbus Terminals ................................................................................................................................ 36
Table 20: Chassis Ground Terminal ..................................................................................................................... 36
Table 21: Dipswitch Options ................................................................................................................................. 37
Table 22: Selectable Baud Rates ......................................................................................................................... 39
Table 23: Selectable Data Formats ...................................................................................................................... 39
Table 24: Modbus Read Register(s) Request ...................................................................................................... 40
Table 25: Modbus Read Register(s) Response ................................................................................................... 40
Table 26: Modbus Write Register Request .......................................................................................................... 41
Table 27: Modbus Write Register Response........................................................................................................ 41
Table 28: Exception Response............................................................................................................................. 42
Table 29: Exception Codes .................................................................................................................................. 42
Table 30: Command Register Locations .............................................................................................................. 43
Table 31: Status Mode Values ............................................................................................................................. 47
Table 32: Modbus Error Codes ............................................................................................................................ 48
Table 33: Com1 Baud Rate .................................................................................................................................. 50
Table 34: Selectable Data Formats ...................................................................................................................... 50
Table 35: Event Log Clock Time Format .............................................................................................................. 54
Table 36: Troubleshooting Chart .......................................................................................................................... 60
Table 37: GM Locations ....................................................................................................................................... 62
Table 38: False Alarm Immunity at High Sensitivity ............................................................................................. 66
Table 39: Flame Response in the Presence of False Alarm Sources (High Sensitivity) ..................................... 67
Table 40: List of Spare Parts ................................................................................................................................ 68
Table 41: Detector Test Mode Initiation or/Detector Alarm Trigger with Test Lamp ............................................ 71
vi
Model FL4000H
Quick Start Guide
Mounting and Wiring the Detector
Pay special attention to the conduit seal entry (Canadian Electrical Code Handbook Part 1,
Section 18-154). Mount the detector by using the swivel mount or mounting bracket hardware.
The following procedure should be used in conjunction with the housing diagram below to
disassemble the Optical Housing Assy for wiring:
A
Figure 1: FL4000H Housing
1. Loosen the captive screws (A) located on the Optical Housing Assy.
2. Pull the Optical Housing Assy from the Base Housing Assy to separate, gently rock from
side to side if necessary to loosen the connector’s grip.
3. Wire the unit to the site-wiring following the connection diagram shown in Figure 5.
4. Reassemble the unit using steps 1 thru 2 in reverse.
CAUTION:
Do not unscrew the field wiring board from the base housing assembly for wiring.
vii
Model FL4000H
Figure 2: Mounting Instruction
Figure 3: Wall Mounting Assembly
viii
Model FL4000H
Figure 4: Bracket Assembly
Figure 5: Field Terminations Showing Wiring for Fire Alarm Systems1
Applying Power to the Detector
Two light emitting diodes (LED’s) are visible through the window. Immediately upon powering
up the detector, both LED’s will start blinking alternately for 15 seconds. The unit will then enter
the “Ready” mode. During the “Ready" mode, the green LED will flash off 0.5 seconds every 5
seconds.
1
Recommended by Underwriters’ Laboratories of Canada.
ix
Model FL4000H
Testing the Detector Using a Test Lamp
Test the integrity of your system by using a Test Lamp. The original configuration (i.e.
sensitivity and relay options) can be changed by referring to Section 3.7 , and then changing
the dipswitch settings located on the bottom of the power board (SW1).
The instrument is now ready to operate. Please consult the Test Lamp manual for more
information on the instrument’s many features. If you have any problems in the set-up or testing
of the detector, please refer to the “Trouble Shooting Section”, or call the factory direct.
About This Manual
This manual provides instructions for installing, operating, and maintaining the General
Monitors (GM) FL4000H Flame Detector. The intended audience includes installation
personnel, field service technicians, Modbus programmers, and other technical staff involved in
installing and using an FL4000H.
Format Conventions
Several format conventions are used throughout this manual for Notes, Cautions, Warnings,
User Menus, and Modbus notations. These conventions are described below.
Notes, Cautions, and Warnings
NOTE: Notes provide supplementary details such as exception conditions, alternate methods
for a task, time saving tips, and references to related information.
CAUTION: These notices describe precautions to prevent hazardous conditions that may
damage the equipment.
WARNING: These notices describe precautions to prevent hazardous conditions that may
cause injury to people working with the equipment.
Modbus Register Formats
Hexadecimal numbers are used in Modbus registers and are indicated by the addition of either
“0x” in front of a number or “h” after the number (example: 0x000E or 000Eh, respectively).
Other Sources of Help
General Monitors provides extensive documentation, white papers, and product literature for
the company’s complete line of safety products, many of which can be used in combination with
the FL4000H. Many of these documents are available online at the General Monitors website at
http://www.generalmonitors.com.
Contacting Customer Support
For additional product information not contained in this manual, please contact General
Monitors Customer Support. Refer to Section 7.0 for contact information.
x
Model FL4000H
1.0 Before Installation
1.1
System Integrity Verification
General Monitors’ mission is to benefit society by providing safety solutions through industry
leading products, services, and systems that save lives and protect capital resources from the
dangers of hazardous flames, gases, and vapors.
General Monitors’ safety products should be handled carefully and installed, calibrated, and
maintained in accordance with the individual product instruction manuals. To ensure operation at
optimum performance, General Monitors recommends that prescribed maintenance procedures be
followed.
1.2
Commissioning Safety Systems
Before power up, verify wiring, terminal connections, and stability of the mountings for all essential
safety equipment including, but not limited to:
•
Power supplies
•
Control modules
•
Field detection devices
•
Signaling / output devices
•
Accessories connected to field and signaling devices
After the initial power up and any factory specified warm-up period of the safety system, verify that
all signal outputs, to and from the devices and modules, are within the manufacturer’s
specifications. Initial calibration / calibration checking / testing should be performed according to
the manufacturer’s recommendations and instructions.
Proper system operation should be verified by performing a full, functional test of all component
devices of the safety system, ensuring that the proper alarm levels occur. Fault / Malfunction circuit
operations should be verified.
1.3
Special Warnings
WARNING: Toxic, combustible, and flammable gases and vapors are dangerous. Extreme
caution should be used when these hazards are present.
CAUTION: Keep cover tight while circuits are alive.
CAUTION: Do not open when an explosive atmosphere is present.
Through engineering design, testing, manufacturing techniques, and rigid quality control, General
Monitors supplies the finest flame detection systems available. The user must recognize his
responsibility for maintaining the flame detection system in operational condition.
The FL4000H contains components that can be damaged by static electricity. In order to avoid
static electricity, special care must be taken when wiring the system to ensure that only the
connection points are touched.
The FL4000H is rated Explosion Proof (XP) for use in hazardous locations.
11
Model FL4000H
Conduit seals or suitably approved Ex d glands must be used to preserve the explosion proof
safety of the FL4000H and help prevent ingress of water or gas from the conduit systems. A
conduit seal must be installed within 18 inches of the enclosure per NEC regulations.
Silicone Room Temperature Vulcanization (RTV) is not an approved moisture barrier. If used,
damage to internal components will arise.
Damage to the FL4000H housing where any internal components or protective seals are broken,
compromises the safety and usability of the device. An FL4000H with a damaged or open housing
should not be used in a hazardous environment. Such damage includes fractures in the housing,
cracks in any internal components, or cracks in the protective seals.
1.4
Glossary of Terms
Table 1: Glossary of Terms
Term /
Abbreviation
A
AC
ANN
AWG
Baud Rate
bps
Cable Armor
Cable Screen
COM
COPM
CR
CRC
DC
DCS
De-Energized
DSP
EEPROM
EMI
ENERGIZED
FOV
FS
GM
HART
Hex
I/O
Instrument Earth
Latching
LED
LSB
mA
Master
Definition
Amps
Alternating Current
Artificial Neural Network
American Wire Gauge
The number of signal level changes per second in a line, regardless of
the information content of those signals
Bits per second
Cable having interlocked or corrugated armor where it is essential to
provide positive grounding of cable armor
Mesh surrounding a cable
DC Ground
Continuous Optical Path Monitoring
Control Room
Cycle Redundancy Check
Direct Current
Distributed Control System
To disconnect from a power source
Digital Signal Processor
Electrically Erasable Programmable Read-Only Memory
Electromagnetic Interference
To apply voltage or energy
Field of View
Full Scale
General Monitors
Highway Addressable Remote Transducer-communication protocol
Hexadecimal Number
Input / Output
Grounded using a grounding strap
Refers to relays remaining in the “on” state even after the “on” condition
has been removed
Light Emitting Diode
Least Significant Bit
Milli-Amps refers to 1/1000 of an Amp
Controls one or more devices or processes
12
Model FL4000H
Term /
Abbreviation
Modbus
N/A
NC
NO
Non-Latching
NPT
OV Return
0VDC
Oxidation
PCB
PLC
ppm
RFI
RMS
ROM
RTV
Safety Earth
Slave
SMT
SPAN Value
SPDT
SPST
TB
V
VAC
VDC
XP
Definition
Master-slave messaging structure
Not Applicable
Normally Closed
Normally Open
Refers to relays being reset to the initial state after “on” condition has
been removed
National Pipe Thread
Over voltage return
Power Supply Common Ground
Combining with Oxygen
Printed Circuit Board
Programmable Logic Controller
Parts per million
Radio Frequency Interference
Root-Mean-Square
Read Only Memory
Room Temperature Vulcanization
Grounded to the earth
One or more devices or processes controlled by a master controller
Surface Mount Technology
The programmed range of measurable parts per million
Single Pole, Double Throw
Single Pole, Single Throw
Terminal Block
Volts
Volts Alternating Current
Volts Direct Current
Explosion Proof
13
Model FL4000H
2.0 Product Overview
2.1
General Description
The General Monitors’ FL4000H is a MultiSpectral Infrared (MSIR) Flame Detector
(Figure 6). The FL4000H employs state-ofthe-art infrared (IR) detectors and a
sophisticated artificial neural network (ANN)
based signal processing to produce a system
that is highly immune to false alarms caused
by lightning, sunlight reflection, arc-welding,
hot objects, and other sources of radiation. In
addition, the FL4000H can see through most
smoky type fires such as diesel, rubber, etc.
The FL4000H is certified as explosion proof
for use in hazardous locations (Section 8.3.2).
It can also be used for general-purpose, nonhazardous applications.
Figure 6: FL4000H Front View
2.2
Features and Benefits
High False Alarm Immunity: Provides reliable flame detection performance by utilizing a
proprietary ANN processing algorithm to minimize false alarms. Please refer to Sec. 8.4 for more
details on the behavior of the instrument in the presence of false stimuli.
Wide Field of View (FOV): Encompasses a larger area of detection with uniform sensing and no
blind spots.
Modular Design: Results in low maintenance and reduced total cost of ownership.
Compact Unitized Design: Enhances ease of installation and maintenance.
Continuous Optical Path Monitoring (COPM): Regularly monitors the optical path to ensure the
window is not dirty.
0-20 mA Analog Output: Transmits alarm and fault indication to a remote display, computer, or
other device such as an alarm, dispensing device, or master controller.
Dual Redundant Modbus RS-485 User Interface (Standard FL4000H Configuration): Provides
the capability to operate the FL4000H remotely, using 2 redundant channels. This interface allows
the user to remotely change the alarm and warning relay settings, clear selected faults, clear error
counters, change baud rates, and change formats for serial communication lines.
HART Protocol2 (Optional HART Configuration): The HART equipped FL4000H supports the
HART communication protocol version 6. Using this protocol, users can transmit diagnostics,
settings, and other device status information that improves the efficiency of remote communication.
NOTE: FL4000H HART should not be used with General Monitors TA402A and FL802 Controllers.
2
HART® is a registered trademark of the HART Communication Foundation
14
Model FL4000H
2.3
Applications
The FL4000H provides flame detection for a wide range of applications, including, but not limited to
the following:
Table 2: Sample Industry Applications
Industries
Oil and Gas
Gas Pipelines
Airports / Military
Gas Turbines
Chemical Plants
Loading Terminals
Petrochemical
Refineries
2.4
Sample Applications
On and Offshore Platforms
Compressor Buildings
Airplane Hangars
Turbine Enclosures
Process Buildings
Trucking On / Off Loading Areas
Process Areas
Tank Farms and Process Areas
Principle of Operation
The FL4000H is a discriminating multi-spectral infrared detector, which makes use of infrared
sensors for different IR wavelengths and characteristics. This combination provides a flame
detection system, which is highly immune to false alarms.
The ANN network classifies the output signals from the detector as either fire or no-fire. The unit
then produces the following output signals:
•
0 to 20 mA signal (3.5 or 1.25 to 20 mA with optional HART protocol)
•
Immediate WARN relay contacts
•
Time delayed ALARM relay contacts
•
FAULT relay contacts
•
RS-485 Modbus output
•
Redundant RS-485 Modbus output
(Refer to Section 3.0 and Section 4.0 for more information on detector outputs.)
2.4.1 Visual Indicators
Two light emitting diodes (LEDs) are visible on the front detector window. These LEDs provide a
visual indication that corresponds with the detector’s outputs. The following LED flashing
sequences indicate various operating conditions:
15
Model FL4000H
Table 3: LED sequence for each operating condition.
State
Red
Green
Notes
Power up
0.5 sec On
0.5 sec On
Alternating for 15 seconds
5 sec On
Ready
Off
0.5 sec Off
0.5 sec On
Warning
Off
0.5 sec Off
0.2 sec On
Alarm
Off
0.2 sec Off
0.5 sec On
COPM Fault
Off
0.5 sec Off
Low Voltage, Code or
0.2 sec On
Off
Data, Checksum Fault
0.2 sec Off
0.9 sec On
Test Mode Activated
Off
0.1sec Off
Alternating while detecting
Test Mode Warning
0.5 sec On
0.5 sec On
Test Lamp
Alternating while detecting
Test Mode Alarm
0.2 sec On
0.2 sec On
Test Lamp
#
1
2
3
4
5
6
7
8
9
2.4.2 Continuous Optical Path Monitoring - COPM Circuitry
A self-testing feature called Continuous Optical Path Monitoring (COPM) checks the optical path,
the detector(s), and the related electronic circuitry once every 2 minutes. If foreign material on the
front surface of the FL4000H blocks the COPM light from reaching the detector(s) for four minutes,
the unit will indicate FAULT. The optical FAULT outputs are a 2.0 mA (3.5 mA with HART and
small HART current disabled) signal, de-energizing of the FAULT relay, and Modbus (RS-485)
output signal. After a COPM FAULT, a COPM check is performed every twenty seconds. The
COPM will resume a once per 2-minute check only after the obstruction is removed.
CAUTION:
Dirty or partially blocked windows can significantly reduce the detector’s field of view
and detection distance.
NOTE: Because the optical path is checked once every 2 minutes and requires two check failures
to produce a FAULT, it may take up to 4 minutes for the unit to detect an obstruction.
2.4.3 Test Mode Initiation
NOTE: The FL4000H will not detect a flame while in Test Mode.
The FL4000H has the ability to initiate a special Test Mode, which enables the user to test the
response of the unit without the use of a flame source. Once the Test Mode has been activated,
the unit will not detect a flame, but rather, responds to GM’s Test Lamp as a simulated flame
source.
There are four options for enabling Test Mode on the FL4000H:
1.
2.
3.
4.
3
Flashing of the Test Lamp
Momentary grounding of test wire3
Modbus command
HART command (available in HART configuration only)
Underwriters’ Laboratories of Canada (ULC) does not sanction the grounding of test wire as an approach for enabling Test Mode. For ULCapproved systems, only Test Lamp and HART and Modbus commands may be used.
16
Model FL4000H
Each time the Test Mode is activated and the Test Lamp is successfully detected, regardless of
which option is used, the FL4000H maintains a timestamp of the test. This timestamp is available
to the user via Modbus registers 0x6A, 0x6B, and 0x6C.
2.4.3.1 Test Mode Initiation via Test Lamp
NOTE: The Test Lamp sequence is depicted in Figure 7.
When the unit is in Operational Mode, the FL4000H recognizes the Test Lamp as a trigger to
activate the Test Mode. Within 5-8 seconds of the Test Lamp flashing, the FL4000H will detect the
simulated flame source, drop the analog output to 1.5 mA (3.5 mA with HART and small HART
current disabled), and change the LED flashing to indicate “Test Mode Activated” shown in
sequence #7 of Table 3. The relay setting will remain at “Ready” during this operation.
Further continuous flashing of the Test Lamp in Test Mode enables the following sequence of
events:
•
After 2 seconds in Test Mode (Phase 2), the FL4000H indicates a Warning condition, by
setting the analog output to 16 mA, changing the LED flashing to indicate “Test Mode
Running” shown in sequence #8 (Table 3), and setting the relay to Warning State.
•
After a user-selectable time delay of 0-304 seconds (Phase 3), the FL4000H displays an
Alarm condition by setting the analog output to 20 mA, and setting the relay to Alarm State.
The LED sequence changes to sequence #9 (Table 3) “Warning” mode.
•
After 4.25 minutes in Alarm mode (Phase 4), the unit will return to Ready Mode by
dropping the analog output to 4.3 mA, restoring the LED flashing to “Ready” shown in
sequence #2 (Table 3), and setting the relay to Ready State. The FL4000H has now
returned to flame detection status.
NOTE: After the test is initiated via the Test Lamp, all other commands are ignored until the Test
Mode is over. While in Test Mode, the unit will not detect flames. Interruption of the Test
Lamp flashing for more than 3 seconds will result in termination of the test sequence and a
return to Ready Mode (Phase 0).
If a relay is latched, it must be manually reset via the reset relays line or a Modbus
command. There is a 10 second restart delay. After the unit returns to Ready State from
Phase 4, the unit waits for 10 seconds before a subsequent Test Lamp transition back to
Phase 1.
2.4.3.2 Test Mode Initiation via Grounding of Test Wire or Modbus Command
NOTE: Both grounding of the test wire and Modbus command sequence are depicted in Figure 8.
Momentary grounding of a test wire or the Modbus test-mode-enable command causes the
FL4000H to enter Test Mode. Initiation of Test Mode is indicated by the analog output dropping to
1.5 mA (3.5 mA with HART and small HART current disabled) and LED flashing in sequence # 7
(Table 3). The Test Lamp is not needed to enable Test Mode. If the Test Lamp is not used in Test
Mode, the Test Mode times out in 3 minutes.
Flashing of the Test Lamp in the Test Mode enabled via test wire or Modbus results in the
following sequence of events:
4
Time delay can be set through Modbus to any value between 0 and 30 seconds, and via dipswitch to 0, 8, 10, or
14 seconds.
17
Model FL4000H
•
After 5-8 seconds of the Test Lamp flashing in Phase 3, the FL4000H goes into Phase 4,
indicating 1.5 mA (3.5 mA with HART and small HART current disabled) at the analog
output, changing the LED flashing to indicate “Test Mode Running” shown in sequence #8
(Table 3).
•
After 4.25 minutes in Phase 4, the FL4000H returns to Ready Mode, indicating 4.3 mA at
the analog output, restoring the LED flashing to “Ready” shown in sequence #2 (Table 3).
NOTE: After the test is initiated via wire or Modbus; all other commands are ignored until the Test
Mode is over. While in Test Mode, the unit will not detect flames. Interruption of the Test
Lamp flashing for more than 3 seconds will result in termination of the test sequence and a
return to Ready Mode (Phase 0).
18
Model FL4000H
IGNORED MISUSE CONDITIONS
- GROUND TEST WIRE
- HOLD TEST WIRE GROUNDED
- RESEND TEST MODE MODBUS COMMAND
-TEST LAMP FLASHING IN TL103 MODE FOR
TL104 OR IN SWITCH POSITIONS 1-3 and 5
FOR Tl105 TEST LAMP
2 SEC. **
TEST
LAMP
FLASHING
TEST LAMP IS POINTED ON FL4000H
PHASE 1
ANALOG
OUTPUT:
1.5 mA (3.5 mA
with HART)
LED FLASH
SEQUENCE:
Test Mode Active
(Sequence #7)
RELAY
SETTING:
Ready
LED FLASH
SEQUENCE:
Test Mode Warning
(Sequence #8)
RELAY
SETTING:
Warning
PHASE 2
ANALOG
OUTPUT:
16 mA
0 - 30 SEC.*
TEST LAMP CONTINUOUSLY FLASHING
5 - 8 SEC.
PHASE 0
READY
MODE
YES
Latching?***
4.25 MIN. **
PHASE 3
ANALOG
OUTPUT:
20 mA
LED FLASH
SEQUENCE:
Test Mode Alarm
(Sequence #9)
PHASE 4
ANALOG
OUTPUT:
4.3 mA
RELAY
SETTING:
Alarm
YES
Latching?***
LED FLASH
SEQUENCE:
Ready Mode
RELAY
SETTING:
Ready
PHASE 0
* USER SETTING VIA DIP SWITCH (0, 8, 10, OR 14 SEC) OR MODBUS (0 - 30 SEC)
** FACTORY PROGRAMMABLE
*** IF RELAY IS LATCHED DURING THE TEST MODE, IT MUST BE MANUALLY RESET
VIA RESET RELAYS LINE OR MODBUS COMMAND
Figure 7: Test Lamp Flashing Option (Auto-detection)
19
Model FL4000H
IGNORED MISUSE CONDITIONS
- REPEAT GROUNDING OF TEST WIRE
- HOLD TEST WIRE GROUNDED
- RESEND TEST MODE MODBUS COMMAND
- TEST LAMP FLASHING IN TL103 MODE FOR TL104
OR IN SWITCH POSITIONS 1-3 and 5 FOR Tl105
TEST LAMP
INSTANT
3 MIN.* WAITING
IN TEST MODE
TEST LAMP NOT FLASHING
PHASE 0
READY
MODE
GROUNDING OF TEST WIRE
OR
MODBUS COMMAND
PHASE 1
ANALOG
OUTPUT:
1.5 mA (3.5 mA
with HART)
NO
LED FLASH
SEQUENCE:
Test Mode Active
(Sequence # 7)
RELAY
SETTING:
Ready
PHASE 2
Test Lamp
5 - 8 SEC.
PHASE 3
YES
ANALOG
OUTPUT:
4.25 MIN.*
TEST LAMP CONTINUOUSLY FLASHING
FLASHING?
1.5 mA (3.5 mA
with HART)
LED FLASHING:
Test Mode Warning
(Sequence #8)
RELAY
SETTING:
Ready
PHASE 4
LED FLASHING:
Test Mode Alarm
(Sequence #9)
ANALOG
OUTPUT:
4.3 mA
LED FLASH
SEQUENCE:
Ready Mode
RELAY
SETTING:
Ready
PHASE 0
* FACTORY PROGRAMMABLE
Figure 8: Grounding of Test Wire or Modbus Command Options
20
Model FL4000H
3.0 Installation
CAUTION:
The FL4000H contains components that can be damaged by static electricity.
Always wear grounding apparel when handling or installing the unit.
NOTE: Only personnel trained and qualified in the HART communication protocol may install
and use the HART configuration of the FL4000H detector.
NOTE: Only trained and authorized users can configure the FL4000H.
NOTE: The FL4000H flame detector is to be installed in accordance with NFPA 72
requirements.
The basic steps in a typical installation are listed in the sections below. The installation process
may vary depending on the exact site configuration.
NOTE: When used with ULC-listed fire alarm control units equipped with 4-wire smoke
detector circuits, the FL4000H should be reset by temporarily removing the supply
voltage for at least 70 ms with a decline of operation voltage of no less than 3 VDC.
3.1
Unpacking the Equipment
All equipment shipped by General Monitors is packaged in shock absorbing containers that
protect against physical damage. The contents should be carefully removed and checked
against the enclosed packing list.
If any damage has occurred or there is any discrepancy in the order, please contact General
Monitors. Refer to Section 7.0 for contact information.
NOTE: Each FL4000H is completely tested at the factory; however, a system check is required
upon initial start-up to guarantee system integrity.
3.2
Required Tools
The following tools are required to install the FL4000H:
Table 4: Required Tools
Tool
5mm Allen wrench
Flat-head screwdriver
3/16 inch (5 mm) maximum
Adjustable wrench
Use
To fasten/remove front assembly from base(included)
To connect wires into the Terminal Block (included)
To make conduit and cable gland connections (not included)
21
Model FL4000H
3.3
Detector Location Guidelines
Several variables are involved in selecting locations to install detectors. There are no hard and
fast rules defining the optimum location to ensure proper flame detection. However, the
following general suggestions should be considered in regard to particular conditions at the site
where the unit(s) is being installed:
3.3.1 Detector Field of View
Each FL4000H Flame Detector has a maximum range of 210 feet (64 m). The FOV5 has its
vertex at the center of the detector. Horizontal FOV is measured in the horizontal plane going
through the center axis of the detector, and vertical FOV is measured in the vertical plane going
through the same axis. Both horizontal and vertical FOV are defined for high, medium and low
sensitivity settings of the FL4000H, as shown in Figure 9 through Figure 14.
Table 5: Maximum Specified Fields of View at High Sensitivity6
Field of View: Horizontal
Max. Specified Range Max Specified FOV
210 ft (64 m)
90°
100 ft (31 m)
100°
30 ft (9 m)
90°
5
Field of View: Vertical
Max Specified Range Max Specified FOV
230 ft (70 m)
75°
100 ft (30 m)
80°
30 ft (9 m)
90°
Maximum specified FOV is the angle at which FL4000H can detect the flame at 50% of the maximum
specified range.
6
Maximum specified FOV is the angle at which FL4000H can detect the flame at 50% of the maximum
specified range.
22
Model FL4000H
Figure 9: Horizontal FOV – n-Heptane – High Sensitivity.
Figure 10: Horizontal FOV – n-Heptane – Medium Sensitivity.
23
Model FL4000H
Figure 11: Horizontal FOV – n-Heptane – Low Sensitivity.
Figure 12: Vertical FOV – n-Heptane – High Sensitivity.
24
Model FL4000H
Figure 13: Vertical FOV – n-Heptane – Medium
Sensitivity.
Figure 14: Vertical FOV – n-Heptane – Low
Sensitivity.
3.3.2 Optical Sensitivity Range
The distance at which the detector will respond to a flame is a function of the intensity of that
flame. The maximum distance is 210 ft (64.0 m) for an n-heptane fire with a surface area of
1 ft2 (0.092 m2). The following table shows the specified ranges for a given sensitivity setting.
Table 6: Sensitivity Settings for n-Heptane
Sensitivity Setting
Specified Range ft (m)
Low
Medium
High
60 (18)
120 (37)
210 (64)
25
Model FL4000H
3.3.3 Environmental Factors
•
Observe the ambient temperature range for the specific model – refer to Environmental
Specifications (Section 8.2.5). For outdoor installations or other areas exposed to
intense, direct solar radiation, the detector may reach temperatures well above
specifications. For this condition, a cover for shade may be required to bring the
detector temperature within specifications. As with any cover or object near-by, make
sure the field of view of the detector is not obstructed.
•
Avoid conditions of ice build up on the optical detector windows. Complete icing-over of
the IR detector window can result in fault conditions.
•
Modulated reflected sunlight shining at the face of the FL4000H reduces flame
detection distance.
3.4
Field Wiring Procedure
A
Figure 15: FL4000H Housing
26
Model FL4000H
The following procedure should be used in conjunction with Figure 15:
1.
Loosen the captive screws (A) located on the Optical Housing Assy.
2.
Pull the Optical Housing Assy from the Base Housing Assy to separate, gently rock from
side to side if necessary to loosen the connector's grip.
3.
Make all necessary wiring connections as described in Sections 3.6.1 thru 3.6.12. For an
example of wiring, please refer to the connection diagram in Figure 5.
4.
Set switch selectable options as described in Section 3.7 .
5.
Reassemble the unit using steps 1 thru 2 in reverse.
CAUTION:
3.5
Do not unscrew the field wiring board from the base housing assembly for wiring.
Detector Mounting and Installation
The FL4000H is enclosed in an explosion proof assembly, which is rated for use in the
environments specified in Section 8.3.2.
•
The unit should be mounted free from shock and vibration and convenient for visual
inspection and cleaning.
•
The detector(s) should be tilted downward so that dust or moisture does not
accumulate on the sapphire window.
•
The detector(s) should be mounted in locations, which will inhibit people or objects
from obscuring the detector’s FOV.
NOTE: Frequent inspection, cleaning, and sensitivity checking is suggested for detectors
mounted in dirty environments.
CAUTION:
General Monitors requires that the FL4000H conduit entry be sealed per the
Canadian Electrical Code Handbook (Part 1, Section 18-154) and NEC Article
501. Conduit seals or approved Ex d glands prevent water or gas from entering
the detector’s housing through the conduit entry. Water entering the housing
through the conduit entry will damage the electronics and nullify the warranty.
The FL4000H is mounted as shown in Figure 16 and the overall product dimensions are
depicted in Figure 17.
NOTE: Conduit seal must be within 18” of unit.
NOTE: Non-hardening thread sealant should be used if the plugs are removed or re-installed
in order to preserve ingress protection rating.
27
Model FL4000H
Figure 16: Detector Mounting and Installation
28
Model FL4000H
Figure 17: Dimensional Drawing
3.6
Terminal Connections
All wire connections are made through the ¾ inch (1.9 cm) NPT openings in the Base Housing
to the Terminal Block. The Terminal Block is located in the Base Housing Assembly and
accepts 14 AWG (2.08 mm2) to 22 AWG (0.33 mm2) stranded or solid-core wire. Each wire
should be stripped as shown in Figure 18.
.
Figure 18: Wire-Strip Lengths
To connect the wire to the Terminal Block, insert the conductor into the connection space
(Figure 20) and tighten the corresponding screw terminal.
29
Model FL4000H
Figure 19: Base Housing and Terminal Blocks
Table 7: Terminal Block Connections
Terminal Block – P2
Pin #
Description
10
WARN 2
9
WARN 1
8
WARN C
7
ALM C
6
ALM 1
5
ALM 2
4
RLY_10 (Relay Reset)
3
COM2+/DATA2+
2
COM2-/DATA21
CAL_ IO
Terminal Block – P1
Pin #
Description
FLT 2
1
FLT 1
2
FLT C
3
TEST_10 (Test Mode)
4
COM1+/DATA1+
5
COM1-/DATA16
0-20mA
7
+24 VIn
8
GND/COM
9
CHGND/CHASGND
10
(Chassis Ground)
There are twenty possible terminal connections.
Sections 3.6.1, 3.6.2, and 3.6.4 provide a description and specification for each connection.
30
Model FL4000H
3.6.1 Alarm Relay
Table 8: Alarm Relay Terminals
Terminal Block
P2
P2
P2
Connection
Point
Block Name
Term 5
Term 6
Term 7
ALM2
ALM1
ALMC
User Relay Settings
Normally Deenergized
Alarm NO
Alarm NC
Alarm Common
Normally
Energized
Alarm NC
Alarm NO
Alarm Common
NOTE: NO = Normally Open; NC = Normally Closed
Description: The connections are to the single pole, double throw (SPDT) ALARM relay.
ALARM output is time delayed for 0, 8, 10, or 14 seconds. This time delay can be set by
Modbus (RS-485) or the user selectable dipswitch (Section 3.7 ). Note that a minimum time
delay of 8 seconds can be applied if the flame source is removed within 50% of set delay time
from the start of flame. Please refer to Sec.3.7.1. If set via Modbus below 8 seconds, the
detector may go into alarm even if the flame source is removed within 50% of the delay time.
The ALARM output can be normally energized or de-energized, latching or non-latching, and
these options are also set via Modbus or by a dipswitch. The ALARM relay contact ratings are
8 A @ 250 VAC and 8 A @ 30 VDC. Refer to Figure 20 for all relay connections.
Figure 20: Terminal Connections7
7
For ULC-recommended wiring, please see Figure 5.
31
Model FL4000H
3.6.2 Warning Relay
Table 9: Warning Relay Terminals
Terminal Block
P2
P2
P2
Connection
Point
Block Name
Term 8
Term 9
Term 10
WARNC
WARN1
WARN2
User Relay Settings
Normally Deenergized
Warn Common
Warn NC
Warn NO
Normally
Energized
Warn Common
Warn NO
Warn NC
NOTE: NO = Normally Open; NC = Normally Closed
Description: These connections are to the SPDT WARN relay. The WARN output is immediate
on the FL4000H. The WARN output can be normally energized or de-energized, latching, or
non-latching. These options are also set via Modbus or by a dipswitch (Section 3.7 ). The
WARN relay contact ratings are 8 A @ 250 VAC and 8 A @ 30 VDC.
Refer to Figure 20 for all relay connections.
3.6.3 Alarm Wiring Relay Protection
Inductive loads (bells, buzzers, relay, contractors, solenoid valves, etc.) connected to the
Alarm, Warn, and Fault relays must be clamped down as shown on diagrams in
Figure 21. Unclamped inductive loads can generate voltage spikes in excess of 1000 volts.
Spikes of this magnitude will cause false alarms and possible damage.
Figure 21: Relay Contacts
Refer to Figure 20 for all relay connections.
32
Model FL4000H
3.6.4 Fault Relay
Table 10: Fault Relay Terminals
Terminal Block
Block Name
FLT2
Normally Energized
P1
Connection Point
Term 1
P1
Term 2
FLT1
Fault NO
P1
Term 3
FLTC
Fault Common
Fault NC
NOTE: NO = Normally Open; NC = Normally Closed
Description: These connections are to the SPDT FAULT relay. The FAULT output configuration
is normally energized and non-latching. This is the standard output configuration and it cannot
be changed.
The FAULT circuit will be activated during the time-out function, a low power or loss of power
condition, or during a failed COPM check. During these conditions, the FAULT relays will deenergize and the analog output signal will drop to 0 mA (2 mA for COPM Faults, 3.5 mA with
HART or 1.25 mA for HART with small current enabled) for the duration of the FAULT. The
FAULT relay contact ratings are 8 A @ 250 VAC and 8 A @ 30 VDC.
Refer to Figure 20 for all relay connections.
3.6.5 Alarm Reset Terminal
Table 11: Alarm Reset Terminal
Terminal Block
P2
Connection Point
Term 4
Block Name
RLY_IO
Setting
Relay Reset
The RESET, when activated, returns a latched ALARM and/or WARN output that is no longer
valid to its original state. For this RESET function, place one contact of a SPST (single pole,
single throw), normally open, momentary switch to P2 Terminal 4 and the other contact to P1
terminal 9 (GND). To activate, press and release the switch.
3.6.6 Test Mode Terminal
Table 12: Test Mode Terminal
Terminal Block
P1
Connection Point
Term 4
Block Name
TEST_IO
Setting
Test Mode
By connecting one contact of a SPST, normally open, momentary switch to P1 terminal 4 and
the other contact to P1 terminal 9 (GND), the user can put the unit into a special test mode.
When the switch is first closed, the mode is set and the FL4000H goes to 1.5 mA or 3.5 mA
with HART and small HART current disabled (ready mode) and remains at this value while
detecting the Test Lamp. The relays are not activated. Closing the switch a second time or after
approximately 3 minutes, the unit will return to normal operation.
NOTE: When in test mode via ground wire, the Test Lamp triggers a “ready” condition only.
33
Model FL4000H
3.6.7 Alarm Test Terminals
Table 13: Alarm Test Terminals
Terminal Block
P1
P2
Connection Point
Term 4
Term 4
Block Name
TEST_IO
RLY_IO
Setting
Test Mode
Relay Reset
By connecting one contact of a DPST, normally open, momentary switch to each of the P1
terminal 4 and P2 terminal 4 simultaneously and the other contact to (GND), the user can
perform an Alarm Test (Figure 22). Activating this switch for 0 to 14 seconds, depending on the
alarm time delay settings, can test the alarm outputs of the Flame Detector. The Alarm Test will
activate the WARN and ALARM relay outputs as well as the appropriate analog output. The
Flame Detector will remain in this state until the switch is released or until 3 minutes has
elapsed.
NOTE: The latching WARN and / or ALARM will have to be reset manually.
RESET RELAYS
TB2
PIN 4
TEST MODE
TB1
PIN 4
DPST
RESET RELAYS
SWITCH
TEST MODE
SWITCH
ALARM TEST
SWITCH
NOTE: ALL SWITCHES ARE MOMENTARY ON
Figure 22: Wiring Diagram – Reset Relays, Test Mode, & Alarm Test
3.6.8 Analog Output
Table 14: Analog Output Terminal
Terminal Block
P1
Connection Point
Term 7
Block Name
0 – 20 mA
The 0 to 20 mA output is a current signal that corresponds to the following:
34
Setting
Analog Output
Model FL4000H
Table 15: Analog Output Levels
Analog Output
Startup8
FAULT Signal
Test Mode
COPM Fault Signal
Ready signal
WARN signal
ALARM signal
Dual Modbus
0 to 0.2 mA
0 to 0.2 mA
1.5 ± 0.2 mA
2.0 ± 0.2 mA
4.3 ± 0.2 mA
16.0 ± 0.2 mA
20.0 ± 0.2 mA
HART (3.5 mA)
3.5 mA
3.5 mA
3.5 mA
3.5 mA
4.3 ± 0.2 mA
16.0 ± 0.2 mA
20.0 ± 0.2 mA
HART (1.25 mA)
1.25 mA
1.25 mA
1.5 mA
2.0 mA
4.3 ± 0.2 mA
16.0 ± 0.2 mA
20.0 ± 0.2 mA
The maximum analog output load is 600 Ω.
NOTE: The COPM Fault Signal may also be set to 0 mA at the factory (non HART only).
3.6.9 Cable Requirements
For interfacing with 250 Ω input impedance devices, the following maximum cable lengths
apply (maximum 50 Ω loop):
Table 16: Maximum Cable Lengths for 250 Ω Inputs
AWG
14
16
18
20
22
Feet
9,000
5,800
3,800
2,400
1,700
Meters
2,750
1,770
1,160
730
520
3.6.10 Power
Table 17: Power Terminals
Terminal Block
P1
P1
Connection Point
Term 8
Term 9
Block Name
+24IN
GND
Setting
+24 VIn (VDC)
Ground (COM)
Table 17 shows the power connections for the FL4000H. The supply voltage range is 20 to 36
VDC at the detector (low voltage is detected at 18.5 VDC). The following maximum cable
lengths apply for a +24 VDC supply (maximum 20 Ω loop):
Table 18: Maximum Cable Lengths for +24 VDC
AWG
14
16
18
20
22
8
Feet
4,500
2,340
1,540
970
670
Startup mode lasts exactly 15 seconds.
35
Meters
1,370
715
470
300
205
Model FL4000H
3.6.11 Modbus (RS-485) Output
Table 19: Modbus Terminals
Terminal Block
P1
P1
P2
P2
Connection Point
Term 5
Term 6
Term 2
Term 3
Setting
COM1+ (A)
COM1- (B)
COM2- (B)
COM2+ (A)
The connections for the Modbus output are shown in Table 19. The Modbus connection is used
to either query the unit’s status or to configure the unit. See Section 4.0 for detailed information
on Modbus protocol.
3.6.12 Chassis Ground
Table 20: Chassis Ground Terminal
Terminal Block
P1
Connection Point
Term 10
Block Name
CHGND
Setting
Chassis Ground
For proper operation of the detector, the FL4000H must be grounded through a wire to the
chassis. Table 20 shows the terminal block and connection point for the chassis ground
terminal. Failure to establish a ground connection can lead to greater susceptibility of the
detector to electric surges, electromagnetic interference, and ultimately, damage to the
instrument.
3.7
Switch Selectable Options
All settings on the FL4000H are selected via a dipswitch on the Power/Relay board or via
Modbus (overrides switch settings). To set these options, remove the detector head from the
Base Assembly and locate the dipswitch (Figure 23). On the dipswitch, ON/CLOSED means
the switch is pushed in on the side labeled ON or CLOSED (opposite the OPEN side).
OFF/OPEN means the switch is pushed in on the side with the number corresponding to the
switch position or the side labeled OPEN – refer to Table 21 for dipswitch assignments. The
settings for the WARN and ALARM outputs are covered in Section 3.6
3.7.1 Time Delay Settings
Time delay set via dipswitch guarantees that FL4000H will not go into ALARM mode (20 mA) if
the flame source is removed within 50% of set delay time from the start of flame. The unit will
always go into WARN mode (16 mA) upon seeing a flame source.
36
Model FL4000H
Figure 23: Dipswitch Location
Table 21: Dipswitch Options
#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Option
High Sensitivity
Medium Sensitivity
Low Sensitivity
0-Second Alarm Time Delay
8-Second Alarm Time Delay
10-Second Alarm Time Delay
14-Second Alarm Time Delay
ALARM Non-Latching
ALARM Latching
WARN Non-Latching
WARN Latching
ALARM Normally Energized
ALARM Normally De-Energized
WARN Normally Energized
WARN Normally De-Energized
37
On/Closed
1
2
3 and 4
4
3
Off/Open
1 and 2
2
1
3
3 and 4
4
5
5
6
6
7
7
8
8
Model FL4000H
3.8
Powering of the FL4000H
After connecting to a 24 VDC power source, the unit will go through a power up delay of
approximately 15 seconds. The LEDs will blink in alternating red – green sequence, the unit will
output an analog signal of 0mA (3.5 mA with HART or 1.25 mA for HART with small current
enabled) and the fault relay will be in the de-energized state. If the unit is configured with relays
energized, the relays will de-energize for approximately 0.5 seconds. Upon completion of the
power on sequence, the green LED will alternate - on for 5 seconds and off for 0.5 seconds to
indicate a READY status.
3.9
Power up Grounding of the Test and Relay Reset Lines
During power up, grounding the reset relay line for approximately 1 second forces the Modbus
parameters on both channels to go to their default values of: 19,200 Baud, 8-N-1 format, and
Unit ID = 1.
During power up, grounding the test line for approximately 1 second forces the unit to use the
dipswitch settings rather than use the settings stored in the flash memory. These settings are
for the energized/de-energized relay state, the alarm delay, and the unit sensitivity.
38
Model FL4000H
4.0 Modbus Interface
4.1
Introduction
The FL4000H provides communicating ability via the industry standard Modbus protocol, while
acting as the slave device in a typical master/slave configuration. Upon receiving an
appropriate query from the master, the FL4000H will respond with a formatted message as
defined below.
4.2
Communication Slave Address
The FL4000H communication slave address is a unique ID used by the Modbus protocol to
identify each unit on a multi drop Modbus communication bus. The address may contain the
values 1 – 247. There are two communication channels on the FL4000H. Each channel may
have a separate slave address. The default slave address for each channel is 1. Register 0x09
is used to modify the address for channel COM1 and register 0x2F is used to modify the
address for channel COM2.
4.3
Baud Rate
The FL4000H baud rate is selectable using either the Modbus communications interface. The
selectable baud rates are 38,400, 19,200, 9,600, 4,800, or 2,400 bits per second (bps). The
factory set baud rate is 19,200 bps. Register 0x0B is used to modify the baud rate for comm
channel 1 and register 0x30 is used to modify the baud rate for comm channel 2. The
selectable baud rates are as follows:
Table 22: Selectable Baud Rates
Modbus Register Value
04
03
02
01
00
4.4
Baud Rate (bps)
38,400
19,200
9,600
4,800
2,400
Data Format
The data format is selectable using the Modbus communications interface. The factory set data
format is 8-N-1. Register 0x0C is used to modify the data format for comm channel 1 and
register 0x31 is used to modify the format for comm channel 2. The selectable data formats are
as follows:
Table 23: Selectable Data Formats
Modbus
Register
Value
00
01
02
03
Format
Data Bits
Parity
Stop
8-N-1
8-E-1
8-O-1
8-N-2
8
8
8
8
None
Even
Odd
None
1
1
1
2
39
Model FL4000H
4.5
Supported Function Codes
The FL4000H supports the following function codes:
• Function Code 03 (Read Holding Registers) is used to read status from the slave unit.
• Function Code 06 (Preset Single Register) is used to write a command to the slave unit.
4.6
Modbus Read Status Protocol (Query / Response)
A master device reads registers from the FL4000H by sending an 8-byte message (Table 24).
Table 24: Modbus Read Register(s) Request
Byte
Modbus
Range
Referenced to FL4000H
Slave Address
1-247* (Decimal)
FL4000H ID (Address)
1st
Function Code
03
Read Holding Registers
2nd
Starting Address Hi
00
Not Used by the FL4000H
3rd
Starting Address Lo
00-44 (Hex)
FL4000H Commands
4th
th
Number of Registers Hi
00
Not Used by the FL4000H
5
Number of Registers Lo**
01 – 45 (Hex)
Number of 16 Bit Registers
6th
CRC Lo
00-FF (Hex)
CRC Lo Byte
7th
CRC Hi
00-FF (Hex)
CRC Hi Byte
8th
*
Address 0 is reserved for Broadcast Mode and is not supported at this time.
**
A maximum of 69 registers can be requested during a single block of time.
Upon receiving a valid read register request from the master device, the FL4000H will respond
with a message (Table 25). If the query generates an error, an exception message is returned
to the master device (Section 4.8 ).
Table 25: Modbus Read Register(s) Response
Byte
1st
2nd
3rd
4th
5th
Modbus
Slave Address
Function Code
Byte Count **
Data Hi **
Data Lo **
Range
1-247* (Decimal)
03
02 – 8A (Hex)
00-FF (Hex)
00-FF (Hex)
Referenced to FL4000H
FL4000H ID (Address)
Read Holding Registers
Number of Data Bytes (N+)
FL4000H Hi Byte Status Data
FL4000H Lo Byte Status Data
:
:
:
:
:
:
:
:
CRC Hi
00-FF (Hex)
CRC Hi Byte
N++4
CRC Lo
00-FF (Hex)
CRC Lo Byte
N++5
* Address 0 is reserved for Broadcast Mode and is not supported at this time.
** Byte count and the number of returned data bytes depends on the number of requested
registers.
+
N denotes the number of returned data bytes.
40
Model FL4000H
4.7
Modbus Write Command Protocol (Query / Response)
A master device writes to a FL4000H register by sending a properly formatted 8-byte message
(Table 26).
Table 26: Modbus Write Register Request
Byte
Modbus
Range
Referenced to FL4000H
Slave Address
1-247* (Decimal)
FL4000H ID (Address)
1st
Function Code
06
Preset Single Registers
2nd
Register Address Hi
00
Not Used by FL4000H
3rd
Register Address Lo
00-FF (Hex)
FL4000H Register Address Lo Byte
4th
Preset Data Hi
00-03 (Hex)
FL4000H Hi Byte Command Data
5th
Preset Data Lo
00-FF (Hex)
FL4000H Lo Byte Command Data
6th
CRC Hi
00-FF (Hex)
CRC Hi Byte
7th
th
CRC Lo
00-FF (Hex)
CRC Lo Byte
8
* Address 0 is reserved for Broadcast Mode and is not supported at this time.
Upon receiving a valid register write request from the master device, the FL4000H will respond
with a message (Table 27). If the write request generates an error, an exception message is
returned to the master device (Section 4.8 ).
Table 27: Modbus Write Register Response
Byte
Modbus
Range
Referenced to FL4000H
Slave Address
1-247* (Decimal)
FL4000H ID (Address)
1st
Function Code
06
Preset Single Registers
2nd
Register Address Hi
00
Not Used by FL4000H
3rd
th
Register
Address
Lo
00-FF
(Hex)
FL4000H
Register Address Lo Byte
4
th
Preset Data Hi
00-FF (Hex)
FL4000H Hi Byte Command Data
5
Preset Data Lo
00-FF (Hex)
FL4000H Lo Byte Command Data
6th
CRC Hi
00-FF (Hex)
CRC Hi Byte
7th
CRC Lo
00-FF (Hex)
CRC Lo Byte
8th
* Address 0 is reserved for Broadcast Mode and is not supported at this time.
4.8
Exception Responses and Exception Codes
4.8.1 Exception Response
In a normal communications query and response, the master device sends a query to the
FL4000H. Upon receiving the query, the FL4000H processes the request and returns a
response to the master device. An abnormal communication between the two devices produces
one of four possible events:
If the FL4000H does not receive the query due to a communications error, then no
response is returned from the FL4000H and the master device will eventually process a
timeout condition for the query.
If the FL4000H receives the query, but detects a communication error (CRC, etc.), then
no response is returned from the FL4000H and the master device will eventually
process a timeout condition for the query.
If the FL4000H receives the query without a communications error, but cannot process
the response within the master’s timeout setting, then no response is returned from the
41
Model FL4000H
FL4000H. The master device eventually processes a timeout condition for the query in
order to prevent this condition from occurring; the maximum response time for the
FL4000H is 200 milliseconds. Therefore, the master’s timeout setting should be set to
200 milliseconds or greater.
If the FL4000H receives the query without a communications error, but cannot process
it due to reading or writing to a non-existent FL4000H command register, then the
FL4000H returns an exception response message informing the master of the error.
The exception response message has two fields that differentiate it from a normal response.
The first is the function code – byte 2. This code will be 0x83 for a read exception and 0x86 for
a write exception. The second differentiating field is the exception code – byte 3 (Section 4.8.2).
In addition, the total exception response length is 5-bytes rather than the normal message
length.
Table 28: Exception Response
Byte
Modbus
Range
Referenced to FL4000H
Slave Address
1-247* (Decimal) FL4000H ID (Address)
1st
Function Code
83 or 86 (Hex)
Preset Single Registers
2nd
rd
Exception Code 01 – 06 (Hex)
Appropriate Exception Code (See Below)
3
CRC Hi
00-FF (Hex)
CRC Hi Byte
4th
CRC Lo
00-FF (Hex)
CRC Lo Byte
5th
* Address 0 is reserved for Broadcast Mode and is not supported at this time.
4.8.2 Exception Code
Exception Code Field: In a normal response, the FL4000H returns data and status in the
response data field. In an exception response, the FL4000H returns an exception code
(describing the FL4000H condition) in the data field. Below is a list of exception codes that are
supported by the FL4000H:
Table 29: Exception Codes
Code
Name
01
Illegal Function
02
Illegal Data Address
03
Illegal Data Value
04
Reserved
Description
The function code received in the query is not an allowable
action for the FL4000H.
The data address received in the query is not an allowable
address for the FL4000H.
A value contained in the query data field is not an allowable
value for the FL4000H.
NA
42
Model FL4000H
4.9
Command Register Locations
Table 30: Command Register Locations
Register
Address
(Hex)
Parameter
Function
0x0000
Analog Output
0-20mA current output
0x0001
Operating Mode
View operating mode
0x0002
Error Status
0x0003
0x0004
Data
Type
Data Range
Access
Numeric
Value
Numeric
Value
0-65535
(0-20.0 mA)
R
Table 31
R
View present error
Bit Map
Table 32
R
Reserved
N/A
N/A
N/A
Model Number
View Model ID
N/A
Numeric
Value
3500
R
0x0005
Firmware Revision
Firmware Revision ID
2 ASCII
chars
0x0006
COPM Fault
Indicates a COPM fault
on at least 1 of the
detectors
Bit Map
0x0007
DIP Switch
Override
Overrides
the
DIP
Switches at Startup to
use Flash Variables
Bit Map
0x0008
Unit Options
0x0009
COM1 Address
Indicates which options
are configured
Set/view
address
on
Modbus channel 1
Numeric
Value
Numeric
Value
0x000A
Reserved
N/A
N/A
COM1
Baud Rate
COM1
Data Format
COPM Count
Sensor 1
COPM Count
Sensor 2
COPM Count
Sensor 3
COPM Count
Sensor 4
Set/view baud rate on
Modbus channel 1
Set/view data format on
Modbus channel 1
Number of COPM Faults
on sensor 1
Number of COPM Faults
on sensor 2
Number of COPM Faults
on sensor 3
Number of COPM Faults
on sensor 4
Remotely resets latched
alarm & warning relays
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
0x000B
0x000C
0x000D
0x000E
0x000F
0x0010
0x0011
Reset Relays
43
1st char is
blank, 2nd is:
A, B, C, …
Bit 7 is 1 if
any COPM
fault, bits 0,
1, 2, 3
indicate
sensor id.
0 = Options
read from
DIP, 1
means from
Flash
R
R
R/W
R/W
1-247
R/W
N/A
N/A
Table 33
R/W
Table 23
R/W
0-65535
R
0-65535
R
0-65535
R
0-65535
R
1 = reset
relays
W
Model FL4000H
Register
Address
(Hex)
Parameter
Function
Data
Type
0x0012
Remote Alarm
Test
Activates Warn & Alarm
Relays
Numeric
Value
Clear COPM Fault
Counts
Sensor
Temperature
Reset COPM Counters to
zero.
Temperature in
Degrees C
0x0015 –
0x001C
Reserved
0x001D
0x0013
Bit Map
Data Range
1 = Alarm
test, 0 =
done test.
Bit 1 =
Reset
Access
R/W
W
Numeric
Value
-128… +128
R
N/A
N/A
N/A
N/A
HART
Enable/Disable
Enable/disable HART
Numeric
Value
0 - disable
1 - enable
R/W
0x001E –
0x001F
Reserved
N/A
N/A
N/A
N/A
0x0020
COM1 or COM2
Total Receive
Errors
Number of receive errors
on user Modbus
Numeric
Value
0-65535
R
0x0021
Data Errors
Numeric
value
0-65535
R
0-65535
R
0-65535
R
Numeric
value
0-65535
R
Numeric
value
0-65535
R
Numeric
value
0-65535
R
0x0014
0x0022
0x0023
Function Code
Errors
Starting address
errors
0x0024
Total COM1 Only
Receive Errors
0x0025
CRC errors LO for
serial channel
0x0026
CRC errors HI for
user serial
channel
0x0027
Total Overrun
Errors COM1 Only
0x0028
0x0029
0x002A0x002C
0x002D
0x002E
0x002F
Number of illegal data
write errors on user
Modbus
Number of function code
errors on user Modbus
Number of starting
register address errors
Total communication
errors received on Comm
1
Number of CRC LO
errors on user Modbus
channels
Number of CRC HI errors
on user Modbus channels
Numeric
Value
Numeric
Value
Numeric
value
0-65535
R
Reserved
Total Framing
Errors COM1 &
COM2
Total Overrun errors
received on comm
channel 1
N/A
Total Framing errors
received on comm
channels 1 & 2
N/A
N/A
N/A
Numeric
value
0-65535
R
Reserved
N/A
N/A
N/A
N/A
Clear Serial COM
Errors
HART small
current
Clear Modbus
communication errors
Enable/disable 1.25mA
HART minimum current
Set/view address on
Modbus channel 2
Numeric
Value
Numeric
Value
Numeric
Value
1
W
0 – disable
1 - enable
R/W
1-247
R/W
COM2 Address
44
Model FL4000H
Register
Address
(Hex)
Parameter
Function
Data
Type
COM2
Baud Rate
COM2
Data Format
Set/view baud rate on
Modbus channel 2
Set/view data format on
Modbus channel 2
Numeric
Value
Numeric
Value
0x0032 –
0x003E
Reserved
N/A
0x003F
Line Voltage
0x0040 –
0x0046
0x0047
Data Range
Access
Table 33
R/W
Table 34
R/W
N/A
N/A
N/A
Line input voltage * 10.0
Numeric
Value *
10
50 - 360
R
Reserved
N/A
N/A
N/A
N/A
Real Time Clock
Year, Month
Read/Set year and month
of RTC
Numeric
Value
1 –99 year,
1– 12
month
R/W
Real Time Clock
Read/Set day and hour of
RTC
Numeric
Value
1 – 31 day,
0 – 23 hour
R/W
Minute, Second
Read/Set minutes and
seconds of RTC
Numeric
Value
0 – 59
minutes
0 – 59
seconds
R/W
0x004A –
0x0059
Reserved
N/A
N/A
N/A
N/A
0x005A
TEST LAMP Test
Mode
Set/Reset TEST LAMP
test mode. 0 = Normal
Mode. 1 = Test Mode.
Numeric
Value
0-1
R/W
0x005B
Alarm Delay
Read/Set Alarm Delay
Numeric
Value
0 – 30
R/W
0x005C –
0x0090
Reserved
N/A
N/A
N/A
N/A
0x009A
Power Cycled
Flag
Time Reset After power
Cycled
Numeric
Value
0 = Time
not Reset, 1
= Time
Reset
R
0x009B –
0x009F
Reserved
N/A
N/A
N/A
N/A
0x00A0
Event Index
Index of Logged Events
Numeric
Value
0-9
R/W
0x00A1
Running Time Hi
0 - 65535
R
0x00A2
Running Time Low
0 - 65535
R
0x00A3
Clock Time Hi
0x00A4
Clock Time Mid
Running Time Hi for
Warning Event log entries
Running Time Low for
Warning Event log entries
Hi byte = year, Lo byte
month: Warning clock
time
Hi byte = Day, Lo byte
Hour: Warning clock time
0x0030
0x0031
0x0048
Day, Hour
Real Time Clock
0x0049
45
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
1 –99 year,
1– 12
month
1 – 31 day,
0 – 23 hour
R
R
Model FL4000H
Register
Address
(Hex)
Parameter
Function
Data
Type
Data Range
Access
0x00A5
Clock Time Low
Hi byte = Minute, Lo byte
second: Warning clock
time
Numeric
Value
0 – 59
minutes
0 – 59
seconds
R
0x00A6
Reserved
Reserved
0
R
0x00A7
Reserved
Reserved
0
R
0x00A8
Warning Event
Count
0 - 65535
R
0x00A9
Running Time Hi
0 - 65535
R
0x00AA
Running Time Low
Total Warning Event
Count
Running Time Hi for
Alarm Event log entries
Running Time Low for
Alarm Event log entries
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
0 - 65535
R
0x00AB
Clock Time Hi
Hi byte = year, Lo byte
month: Alarm clock time
Numeric
Value
0x00AC
Clock Time Mid
Hi byte = Day, Lo byte
Hour: Alarm clock time
Numeric
Value
0x00AD
Clock Time Low
Hi byte = Minute, Lo byte
second: Alarm clock time
Numeric
Value
0x00AE
Reserved
Reserved
0x00AF
Reserved
Reserved
0x00B0
Alarm Event
Count
Total Alarm Event Count
0x00B1
Running Time Hi
0x00B2
Running Time Low
0x00B3
Running Time Hi for Fault
Event log entries
Running Time Low for
Fault Event log entries
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
Numeric
Value
Clock Time Hi
Hi byte = year, Lo byte
month: Fault clock time
Numeric
Value
0x00B4
Clock Time Mid
Hi byte = Day, Lo byte
Hour: Fault clock time
Numeric
Value
0x00B5
Clock Time Low
Hi byte = Minute, Lo byte
second: Fault clock time
Numeric
Value
0x00B6
Fault Code
See Table 32
0x00B7
Reserved
Reserved
0x00B8
Fault Event Count
Total Fault Event Count
46
Numeric
Value
Numeric
Value
Numeric
Value
1 –99 year,
1– 12
month
1 – 31 day,
0 – 23 hour
0 – 59
minutes
0 – 59
seconds
R
R
R
0
R
0
R
0 - 65535
R
0 - 65535
R
0 - 65535
R
1 –99 year,
1– 12
month
1 – 31 day,
0 – 23 hour
0 – 59
minutes
0 – 59
seconds
R
R
R
0
R
0
R
0 - 65535
R
Model FL4000H
Register
Address
(Hex)
Parameter
0x00BA
Running Time Hi
0x00BB
Running Time Low
0x00BC
Clock Time Hi
0x00BD
Clock Time Mid
Function
Running Time Hi for
Maintenance Event log
entries
Running Time Low for
Maintenance Event log
entries
Hi byte = year, Lo byte
month: Maintenance
clock time
Hi byte = Day, Lo byte
Hour: Maintenance clock
time
0x00BE
Clock Time Low
Hi byte = Minute, Lo byte
second: Maintenance
clock time
0x00BF
Reserved
Reserved
Maintenance
Event Count
Reset Event
Counter
Total Maintenance Event
Count
Reset All Events Counter
to 0
0x00C0
0x00C1
4.10
Data
Type
Data Range
Access
Numeric
Value
0 - 65535
R
Numeric
Value
0 - 65535
R
Numeric
Value
1 –99 year,
1– 12
month
R
Numeric
Value
1 – 31 day,
0 – 23 hour
R
Numeric
Value
0 – 59
minutes
0 – 59
seconds
R
0
R
0 - 65535
R
0 - 65535
W
Numeric
Value
Numeric
Value
Numeric
Value
Command Register Details
The following sections provide a detailed description of each user Modbus command register.
4.10.1 Analog (0x0000)
A read returns a value, which is proportional to the 0-20 mA output current. The value
corresponds to a scaling of 0-65535 decimal.
4.10.2 Operating Mode (0x0001)
A read returns the present mode of the FL4000H. A write command changes the mode to the
requested mode.
NOTE: Returns an Exception Code 03 (Illegal Data Value) if an illegal write is requested.
Table 31: Status Mode Values
Mode
Power-Up Delay
Warn Non-Latching Only
Warn and Alarm Non-latching
Warn Latching Only, Alarm Off
Alarm Latching Only
Warn & Alarm Latching
Ready State
47
Decimal Value
1
2
3
4
5
6
7
Model FL4000H
Mode
Alarm Test
COPM Fault Detected
Warn Latching, Alarm Non-latching, Alarm On
TEST LAMP Cycle
TEST LAMP Cycle – Fire
Decimal Value
10
11
12
13
14
4.10.3 (Register 0x0002) Status/Error
A read returns the errors that are present, which are indicated by bit position. Table 32 shows
the error code returned via the Modbus register 2:
Table 32: Modbus Error Codes
Function
Bit Position
COPM
Low Voltage
Data Flash Checksum
Code Flash Checksum
Relay Reset Shorted
3
4
6
7
15
NOTE: Bits set to “1” when errors occur.
4.10.4 Unit Type (0x0004)
A read returns the Modbus identification number for the FL4000H. The identification number for
the FL4000H is 3500.
4.10.5 Software Revision (0x0005)
A read returns the software revision of the FL4000H as two ASCII characters.
4.10.6 COPM Fault (0x0006)
A read returns the type of COPM Fault, which is either due to an obstruction of the window or
detector malfunction. Cleaning the window or removing the obstacle can clear a COPM fault
caused by a window obstruction.
•
•
Bit 7 is 1 if a COPM fault exists
Bits 0, 1, 2, or 3 indicate which of the detectors are in Fault
4.10.7 Dipswitch Override (0x0007)
A read indicates the status of the dipswitch override bit. A write command changes the state of
the bit (Figure 24). When the dipswitch override bit is enabled, the options for the Detector
Sensitivity, Relay Delay, Relay Latching/Non-Latching and Relay Energized/De-Energized
features are controlled by the data stored in FLASH and are not controlled by the 8-position
dipswitch. When the dipswitch override bit is disabled the options are under the control of the 8position dipswitch. The override bit is located in the LSB of the Low Data Byte and the High
Data Byte is not used.
•
•
Bit = 1, Enabled: Configured from FLASH
Bit = 0, Disabled: Configured from DIP Switch
48
Model FL4000H
NOTE: By grounding the TEST input during the first 1 second of the power up cycle, the
FL4000H will enable the DIP Switch Override, enabling the 8-position Dip Switch
settings to take effect. The DIP Switch Override bit will be set to zero after
approximately 1 second, at which time this input can be released from ground.
Command Register (0x0007, Dipswitch Override)
Dipswitch#
Bit#
Bit
8
7
X
7
6
X
6
5
X
5
4
X
4
3
X
3
2
X
2
1
X
1
0
X
01
10
11
00
Low Sensitivity
Med Sensitivity
High Sensitivity
(Not Used)
00
01
10
11
0-Sec Alarm Time Delay
8-Sec Alarm Time Delay
10-Sec Alarm Time Delay
14-Sec Alarm Time Delay
0 ALARM Latching
1 ALARM Non-Latching
0 WARN Latching
1 WARN Non-Latching
0 ALARM Normally Energized
1 ALARM Normally De-Energized
0 WARN Normally Energized
1 WARN Normally De-Energized
Figure 24: Command Register
4.10.8 Options (0x0008)
A read returns the status of the settings for the Detector Sensitivity, Relay Delay, Relay
Latching/Non-Latching and Relay Energized/De-Energized features either from the Options
dipswitch or the FLASH depending on the setting of the dipswitch override bit listed above. A
write command changes the settings for the FLASH only when the dipswitch override bit is
enabled. The bits, 0-7 in the register, map directly to the dipswitches 1-8 as shown in Table 21.
NOTE: If one writes to register 0x005B, the delay value will be changed, but bits 2 and 3 in
register 8 will not be affected. If register 0x0008 is then written to, it will reset register
0x005B if the bits are different from their previous values. If you intend to set the delay
through register 0x005B, bits 2 and 3 of register 0x0008 should always be written as
11.
EXCEPTION: If an attempt to change the FLASH Options is made while the dipswitch
override bit is disabled, then the unit shall return an Exception Code 03 (Illegal Data
Value).
4.10.9
COM1 Address (0x0009)
A read command returns the current address for Com1. A write command changes the address
to the requested value. Valid addresses are 1-247 decimal. Factory default is 1.
49
Model FL4000H
NOTE: If the address is not in range an Illegal Data Value (03) is returned. By grounding the
RESET input during the first 1 second of the power up cycle, the FL4000H Address will
default to 1. The address will be set to a default of 1 when the red and green LED’s
flash alternately after approximately 1 second, at which time the RESET input can be
released from ground.
4.10.10
COM1 Baud Rate (0x000B)
A read command returns the current baud rate for COM1 channel. A write command changes
the baud rate to the requested values. Valid settings are shown in Table 33. Factory default is
19,200 baud.
Table 33: Com1 Baud Rate
Baud Rate
2,400
4,800
9,600
19,200
38,400
Value
0
1
2
3
4
Access
Read / Write
Read / Write
Read / Write
Read / Write
Read / Write
NOTE: If the baud rate is not in range, an Illegal Data Value (03) is returned. By grounding the
RESET input during the first 1 second of the power up cycle, the FL4000H Baud Rate
will default to 19.2K. The baud rate will be set to a default of 19.2K when the red and
green LED’s flash alternately after approximately 1 second, at which time the RESET
input can be released from ground.
4.10.11
COM1 Data Format (0x000C)
A read command returns the current data format for COM1 channel. Write command changes
the data format to the requested values. Valid settings are shown in Table 34. Default format is
8-N-1.
Table 34: Selectable Data Formats
Format
8-N-1
8-E-1
8-O-1
8-N-2
Parity
None
Even
Odd
None
Stop
1
1
1
2
Data Bits
8
8
8
8
Value
0
1
2
3
Access
Read / Write
Read / Write
Read / Write
Read / Write
NOTE: If the data format is not in range, an Illegal Data Value (03) is returned. By grounding
the RESET input during the first 1 second of the power up cycle, the FL4000H Data
Format will default to 8-N-1. The Data Format will be set to a default of 8-N-1 when the
red and green LED’s flash alternately after approximately 1 second, at which time the
RESET input can be released from ground.
4.10.12
COPM Counts Sensor 1 (0x000D)
A read indicates the number of COPM Faults that have occurred for sensor 1 in the FL4000H.
Please refer to Section 2.4.2 for more information on COPM and Section 6.0 for
troubleshooting tips.
50
Model FL4000H
4.10.13
COPM Counts Sensor 2 (0x000E)
A read indicates the number of COPM Faults that have occurred for sensor 2 in the FL4000H.
Please refer to Section 2.4.2 for more information on COPM and Section 6.0 for
troubleshooting tips.
4.10.14
COPM Counts Sensor 3 (0x000F)
A read indicates the number of COPM Faults that have occurred for sensor 3 in the FL4000H.
Please refer to Section 2.4.2 for more information on COPM and Section 6.0 for
troubleshooting tips.
4.10.15
COPM Counts Sensor 4 (0x0010)
A read indicates the number of COPM Faults that have occurred for sensor 4 in the FL4000H.
Please refer to Section 2.4.2 for more information on COPM and Section 6.0 for
troubleshooting tips.
4.10.16
Remote Reset (0x0011)
Writing a 1 to the register activates the Remote Reset function, which resets the Alarm and
Warn Relays. The function is active momentarily and will reset automatically after being used.
4.10.17
Remote Alarm Test (0x0012)
Writing a 1 to the register activates the Remote Alarm Test function, which activates the Warn
and Alarm Relays. In addition, the function also activates the corresponding LED sequence and
analog output. Upon completion of the test, a zero should be written to the register to conclude
the Alarm Test. If the relays are configured in a latching configuration, refer to Section 4.10.16
to reset the relays and the alarm condition.
4.10.18
Clear COPM Faults (0x0013)
Writing a 1 to the register activates the Clear COPM Faults function that resets all of the
detector fault counters.
4.10.19
Sensor Temperature Output (0x0014)
Reading this register retrieves the sensor temperature in degrees Celsius. The range is –128 to +128.
4.10.20
HART Enable/Disable (0x001D)
This command enables or disables the HART. A ‘0’ is to disable and a ‘1’ is to enable.
4.10.21
Total Receive Errors – COM1 or COM2 (0x0020)
A read indicates the total Modbus COM1 or COM2 channel receive errors in the FL4000H. The
maximum count is 65535, after which the counter resets to zero and begins counting anew.
The total errors are an accumulation of all communication errors.
4.10.22
Data Errors – COM1 and COM2 (0x0021)
A read indicates the number of illegal data write errors on user Modbus. These are errors
where the write value is out of range. The maximum count is 65535, after which the counter
resets to zero and begins counting anew.
51
Model FL4000H
4.10.23
COM1 and COM2 Function Code Errors (0x0022)
A read indicates the total Modbus COM1 & COM2 function code errors that occurred in the
slave device. The maximum count is 65535, after which the counter resets to zero and begins
counting anew.
4.10.24
Starting Register Address Errors (0x0023)
A read indicates the number of starting register address errors. The maximum count is 65535,
after which the counter resets to zero and begins counting anew.
4.10.25
Total Receive Errors – COM1 only (0x0024)
A read indicates the total number of Modbus COM1 receive errors in the FL4000H. The
maximum count is 65535, after which the counter resets to zero and begins counting anew.
4.10.26
CRC Errors Low – COM1 and COM2 (0x0025)
A read indicates the total number of COM1 or COM2 CRC low byte errors in the FL4000H. The
maximum count is 65535, after which the counter resets to zero and begins counting anew.
4.10.27
CRC Errors Hi – COM1 and COM2 (0x0026)
A read indicates the number of COM1 and COM2 CRC Hi byte errors that occurred in the
FL4000H. The maximum count is 65535, after which the counter resets to zero and begins
counting anew.
4.10.28
Total Overrun Errors – COM1 only (0x0027)
A read indicates the number of COM1 Overrun Errors that occurred in the FL4000H. The
maximum count is 65535, after which the counter resets to zero and begins counting anew.
NOTE: An overrun error occurs when a subsequent received data byte overwrites an earlier
unprocessed data byte. As a result, one of the received data bytes will be corrupted.
4.10.29
Total Framing Errors – COM1 and COM2 (0x0029)
A read indicates the number of Comm 1 and Comm 2 Framing Errors that occurred in the
FL4000H. The maximum count is 65535, after which the counter resets to zero and begins
counting anew.
4.10.30
Clear Communication Errors (0x002D)
A read indicates the total number of Modbus communication errors. The maximum count is
65535, after which the counter resets to zero and begins counting anew. A write resets this
value to 0. Only a write of value “0” is allowed for this register.
4.10.31
Enable/disable small HART current (0x002E)
Normally in HART mode the analog output current does not go below 3.5 mA and register 0x2E
reads 0. If a value of 1 is written to the register 0x2E, the minimum HART current becomes
1.25 mA. This allows to distinguish several operating modes that have output current below 3.5
mA.
4.10.32
COM2 Address (0x002F)
A read returns the COM2 address of the FL4000H. A write changes the address to the
requested number. The range of the address is from 1 to 247 (01 to F7 in Hex). After changing
52
Model FL4000H
the address of the FL4000H, it will be necessary for the controlling or master device to similarly
change its query address in order to once again communicate with the FL4000H.
NOTE: By grounding the RESET input during the power-up cycle (approximately 10 seconds),
the address of the FL4000H will default to 1.
4.10.33
COM2 Baud Rate (0x0030)
A read returns the COM2 baud rate of the FL4000H. A write changes the baud rate to the
requested level. After changing the baud rate of the FL4000H, it will be necessary for the
controlling or master device to similarly change its own baud rate in order to once again
communicate with the FL4000H.
NOTE: By grounding the RESET input during the power-up cycle (approximately 10 seconds),
the baud rate of the FL4000H will default to 19.2K. Valid settings are shown in Table 33
4.10.34
COM2 Data Format (0x0031)
A read returns the COM2 data format of the FL4000H. A write changes the data format to the
requested format. After changing the data format of the FL4000H, it will be necessary for the
controlling or master device to similarly change its own data format in order to once again
communicate with the FL4000H.
NOTE: By grounding the RESET input during the power-up cycle (approximately 10 seconds),
the data format of the FL4000H will default to 8-N-1. Valid settings are shown in Table
33.
4.10.35
Set/Read Real-time Clock Year, Month (0x0047)
This is used to read/write the real time clock. The high byte will be the year minus 2000. The
low byte will be a value from 1 to 12.
4.10.36
Set/Read Real-time Clock Day, Hour (0x0048)
This is used to read/write the real time clock. The high byte will be the day of the month from 1
to 31. The low byte will be the hour from 0 to 23.
4.10.37
Set/Read Real-time Clock Minute, Second (0x0049)
This is used to read/write the real time clock. The high byte will be the minute from 0 to 59 and
the low byte will be the seconds from 0 to 59.
NOTE: The registers when read, should be read in order: first 47, then 48, then 49. When
written, they should be written in order: first 47, then 48, and finally 49.
4.10.38
Set/Reset TEST LAMP Test Mode (0x005A)
This is used to place the unit into Test Lamp test mode or return it to the normal mode. Writing
a 1 to the register places the unit into test mode. Writing a 0 to the register places it back into
normal mode. Refer to Section 3.6.6 Test Mode Terminal.
53
Model FL4000H
4.10.39
TEST LAMP Alarm Delay (0x005B)
Using the dipswitches, the alarm delay may be set to one of four pre-programmed settings (0,
8, 10, or 14 seconds). Register 0x5B is used to set the alarm delay to any desired value from 0
to 30 seconds. The dipswitch override flag must be set to 1.
NOTE: If the user writes to this register, it overrides the value set by bits 2 and 3 of register 8.
Reading register 8 will simply return the last values in bits 2 and 3 that will not show the
value written to this register. This behavior is intentional and is to provide backward
compatibility with other General Monitors’ flame detectors.
4.10.40
Power Cycle Flag (0x009A)
This reads whether the time of day clock has been reset after a power has been re-cycled to
the unit. If the time has been reset, this flag will be = 0; otherwise the flag will = 1.
4.10.41
Event Index (0x00A0)
This is used to indicate which of the stored events the user would like to read. There are 4
event logs maintained by the FL4000H unit: Warning events, Alarm events, Fault events, and
Maintenance events. Each of these event logs consist of 10 of their most recent occurrences.
The user is able to read the times of each of these by setting this event index followed by a
reading of the desired event log. The event index is a number from 0 to 9. Zero refers to the
most recent event and 9 refers to the least recent event stored in the log. For example to read
the most recent Warning event in the Warning event log, set this register to 0 and then read
registers 0xA1 and 0xA2 (for the running time in seconds) or read registers 0xA3, 0xA4, and
0xA5 (for the clock time). There is also a warning counter which gives the total number of
warnings received by the system (with a maximum of 65535).
4.10.42
Warning Running Time in Seconds, Hi Word (0x00A1)
This register reads the hi word of the running time in seconds when the warning event
occurred. This time is in seconds since January 1, 2000. This register should be read before
register 0xA2.
4.10.43
Warning Running Time in Seconds, Low Word (0x00A2)
This register reads the low word of the running time in seconds when the warning event
occurred. This time is in seconds since January 1, 2000. This register should be read only after
register 0xA1.
Table 35: Event Log Clock Time Format
Item
Number
1
2
3
Register
Description
A3
A4
A5
Hi Byte =Year, Low Byte = Month
Hi Byte = Day, Low Byte = Hour
Hi Byte = Minute, Low Byte = Second
The values from the above table should be read in order: first item 1, then item 2, & then item 3.
4.10.44
Warning Clock Time: Year, Month (0x00A3)
These registers are described in Table 35 item number 1.
54
Model FL4000H
4.10.45
Warning Clock Time: Day, Hour (0x00A4)
These registers are described in Table 35 item number 2.
4.10.46
Warning Clock Time: Minute, Second (0x00A5)
These registers are described in Table 35 as item number 3.
4.10.47
Reserved (0x00A6)
This register returns the value 0.
4.10.48
Reserved (0x00A7)
This register returns the value 0.
4.10.49
Total Warning Event Counter (0x00A8)
This reads the total number of warning events have been stored in the unit.
4.10.50
Alarm Running Time in Seconds, Hi Word (0x00A9)
This register reads the hi word of the running time in seconds when the alarm event occurred.
This time is in seconds since January 1, 2000. This register should be read before register
0xAA.
4.10.51
Alarm Running Time in Seconds, Low Word (0x00AA)
This register reads the low word of the running time in seconds when the alarm event occurred.
This time is in seconds since January 1, 2000. This register should be read only after register
0xA9.
4.10.52
Alarm Clock Time: Year, Month (0x00AB)
These registers are described in Table 35 as item number 1.
4.10.53
Alarm Clock Time: Day, Hour (0x00AC)
These registers are described in Table 35 as item number 2.
4.10.54
Alarm Clock Time: Minute, Seconds (0x00AD)
These registers are described in Table 35 as item number 3.
4.10.55
Reserved (0x00AE)
This register returns the value 0.
4.10.56
Reserved (0x00AF)
This register returns the value 0.
4.10.57
Total Alarm Event Counter (0x00B0)
This reads the total number of alarm events have been stored in the unit.
55
Model FL4000H
4.10.58
Fault Running Time in Seconds, Hi Word (0x00B1)
This register reads the hi word of the running time in seconds when the fault event occurred.
This time is in seconds since January 1, 2000. This register should be read before register
0xB2.
4.10.59
Fault Running Time in Seconds, Low Word (0x00B2)
This register reads the low word of the running time in seconds when the fault event occurred. This
time is in seconds since January 1, 2000. This register should be read only after register 0xB1.
4.10.60
Fault Clock Time: Year, Month (0x00B3)
These registers are described in Table 35 as item number 1.
4.10.61
Fault Clock Time: Day, Hour (0x00B4)
These registers are described in Table 35 as item number 2.
4.10.62
Fault Clock Time: Minute, Seconds (0x00B5)
These registers are described in Table 35 as item number 3.
4.10.63
Fault Code (0x00B6)
This register is described in Table 32.
4.10.64
Reserved (0x00B7)
This register returns the value 0.
4.10.65
Total Fault Event Counter (0x00B8)
This reads the total number of fault events have been stored in the unit.
4.10.66
Maintenance Running Time in Seconds, Hi Word (0x00BA)
This register reads the hi word of the running time in seconds when the maintenance event
occurred. This time is in seconds since January 1, 2000. This register should be read before
register 0xBB.
4.10.67
Maintenance Running Time in Seconds, Low Word (0x00BB)
This register reads the low word of the running time in seconds when the maintenance event
occurred. This time is in seconds since January 1, 2000. This register should only be read after
register 0xBA.
4.10.68
Maintenance Clock Time: Year, Month (0x00BC)
These registers are described in Table 35 as item number 1.
4.10.69
Maintenance Clock Time: Day, Hour (0x00BD)
These registers are described in Table 35 as item number 2.
4.10.70
Maintenance Clock Time: Minute, Seconds (0x00BE)
These registers are described in Table 35 as item number 3.
56
Model FL4000H
4.10.71
Reserved (0x00BF)
This register returns the value 0.
4.10.72
Total Maintenance Event Counter (0x00C0)
This reads the total number of maintenance events have been stored in the unit.
4.10.73
Reset All Event Counters (0x00C1)
Writing to this register resets all event counters to zero.
57
Model FL4000H
5.0 Maintenance
5.1
General Maintenance
Once correctly installed, the unit requires very little maintenance other than regular sensitivity
checks and cleaning of the window. General Monitors recommends that a schedule be
established and followed. Do not remove the electronics from the housing. Doing so will void
the equipment’s warranty.
NOTE: The removal of particulate matter and any film buildup on the Sapphire Window and
COPM Reflector is necessary to ensure proper sensitivity of the system. It is
recommended that the window and reflector be cleaned at least every 30 days if the
detector is located in a particularly dirty environment.
5.2
Cleaning the Sapphire Window
A clean, soft, lint-free cloth, tissue or cotton swab should be used to apply the cleaning solution.
The window is not glass; it is made from sapphire. The cleaning solution should be General
Monitors’ P/N 10272-1 (Industrial Strength Windex® with Ammonia D).
Do not touch the window or COPM reflector with fingers.
1. Wet the window with the solution.
2. Rub with a dry, unsoiled cloth until the window is clean.
3. Completely dry the window.
4. Repeat steps 1, 2 and 3 for the reflector.
CAUTION: Dirty or partially blocked windows can significantly reduce the detectors field of
view and detection distance. Do not use a commercial glass cleaner other than
Industrial Strength Windex® with Ammonia D.
Figure 25: Optical Parts to Clean
58
Model FL4000H
5.3
Sensitivity Check
To verify that each detector is functioning correctly, a General Monitors’ Test Lamp and/or the
ALARM TEST function (Section 3.6.7) should be used. Refer to Section 8.5 for details on Test
Lamps.
5.4
Storage
The FL4000H should be stored in a clean, dry area and within the temperature and humidity
ranges quoted in Section 8.2.5, Environmental Specifications.
59
Model FL4000H
6.0 Troubleshooting
6.1
Troubleshooting Chart
This section is intended to be a guide to correcting problems, which may arise in the field.
General Monitors should be contacted for assistance if the corrective action listed does not
eliminate the problem. Defective units should be returned to General Monitors for repair with a
complete written description of the problem.
NOTE: If the equipment is under warranty, any repairs performed by persons other than
General Monitors’ authorized personnel may void the warranty. Please read the
warranty statement carefully.
CAUTION: Be sure to inhibit or disconnect external alarm wiring before making any check that
might send the unit into alarm.
Table 36: Troubleshooting Chart
PROBLEM
Analog output signal = 0 mA
and green LED in window is
off
Analog output signal = 0 mA
(3.5 or 1.25 mA with HART)
and green LED in window is
rapidly blinking
Analog output signal = 0 mA
(3.5 or 1.25 mA with HART)
and green LED in window is
rapidly blinking, +24 VDC
verified
Analog output signal = 0 mA
(3.5 or 1.25 mA with HART)
and green LED in window is
rapidly blinking, +24 VDC
verified OK, power was recycled
Analog output signal = 2 mA
(3.5 mA with HART and small
current disabled) and green
LED in window is slowly
blinking
Dipswitch settings do not
match those observed in the
operation of the detector
POSSIBLE CAUSE
CORRECTIVE ACTION
No DC power to the Unit
Be sure that the +24 VDC is applied
with the correct polarity
Low voltage FAULT (voltage at
unit is approximately +18.5 VDC)
Be sure that the unit is powered with
at least +24 VDC under load
Flash Checksum Not OK
Re-cycle power to the unit
Flash Checksum Still Not OK
Call GM customer support
COPM FAULT, dirty or obscured
optical path (detector window)
Clean the window and reflector
Device settings may have
been changed by either HART or
Modbus and no longer
correspond to those on the
dipswitch
Recycle power to the unit while
connecting the test IO terminal to
ground (refer to Section 3.9 ). After
startup, adjust settings via dipswitch
as described in Sec. 3.7 (Switch
Selectable Options)
60
Model FL4000H
6.2
Final Assembly
Figure 26: FL4000H Cross-Section View
61
Model FL4000H
7.0 Customer Support
7.1
General Monitors’ Offices
Table 37: GM Locations
Area
UNITED STATES
7.2
Phone/Fax/Email
Corporate Office:
26776 Simpatica Circle
Lake Forest, CA 92630
Toll Free: +1-800-446-4872
Phone: +1-949-581-4464
Fax:
+1-949-581-1151
Email: info@generalmonitors.com
9776 Whithorn Drive
Houston, TX 77095
Phone: +1-281-855-6000
Fax:
+1-281-855-3290
Email: gmhou@generalmonitors.com
UNITED KINGDOM
Heather Close
Lyme Green Business Park
Macclesfield, Cheshire,
United Kingdom, SK11 0LR
Phone: +44-1625-619-583
Fax:
+44-1625-619-098
Email: info@generalmonitors.co.uk
IRELAND
Ballybrit Business Park
Galway
Republic of Ireland
Phone: +353-91-751175
Fax:
+353-91-751317
Email: info@gmil.ie
SINGAPORE
Block 5, Amk Tech II, #05-20/22/23
Ang Mo Kio Industrial Park 2A
Singapore 567760
Phone: +65-6-748-3488
Fax:
+65-6-748-1911
Email: genmon@gmpacifica.com.sg
MIDDLE EAST
c/o MSA Middle East
B 19-Warehouse/LIU-Row B2
Dubai Airport Free Zone
Dubai 54910
United Arab Emirates
Phone: +971-4-299-6741
Email: gmme@generalmonitors.ae
Other Sources of Help
General Monitors provides extensive documentation, white papers, and product literature for
the company’s complete line of safety products, many of which can be used in combination with
the FL4000H. Many of these documents are available online at the General Monitors website
at http://www.generalmonitors.com.
62
Model FL4000H
8.0 Appendix
8.1
Warranty
General Monitors warrants the FL4000H to be free from defects in workmanship or material
under normal use and service within two (2) years from the date of shipment.
General Monitors will repair or replace without charge any equipment found to be defective
during the warranty period. Full determination of the nature of, and responsibility for, defective
or damaged equipment will be made by General Monitors’ personnel.
Defective or damaged equipment must be shipped prepaid to General Monitors or the
representative from which shipment was made. In all cases, this warranty is limited to the cost
of the equipment supplied by General Monitors. The customer will assume all liability for the
misuse of this equipment by its employees or other personnel.
All warranties are contingent upon proper use in the application for which the product was
intended and do not cover products which have been modified or repaired without General
Monitors’ approval or which have been subjected to neglect, accident, improper installation or
application, or on which the original identification marks have been removed or altered.
Except for the express warranty stated above, General Monitors disclaims all warranties with
regard to the products sold, including all implied warranties of merchantability and fitness and
the express warranties stated herein are in lieu of all obligations or liabilities on the part of
General Monitors for damages including, but not limited to, consequential damages arising out
of / or in connection with the use or performance of the product.
8.2
Specifications
8.2.1 System Specifications
Typical Response Time:
Field of View9:
Sensitivity:
≤ 10 sec for heptane fires when detector is on axis to fire source;
≤ 30 sec when detector is at angles of ±45º
90° @ 210 ft (64 m), 100° @ 100 ft (31 m)
60 ft (18 m), 120 ft (37 m), and 210 ft (64 m) for low, medium, and
high sensitivities, respectively. Maximum distance for a 1 square
foot (0.093 m2) n-heptane fire to be reliably detected. For settings
see 3.7 Switch Selectable Options.
NOTE: Response Times and Field of View data were obtained from tests with a 1 square foot
heptane fire. These are typical values and different results may occur depending on the
variation of each fire.
9
Maximum specified FOV is the angle at which FL4000H can detect the flame at 50% of the maximum
specified range. To comply with the directional dependence requirements for EN 54-10:2002, an angle of ± 35°
from 0°(0° = Orientation of detector in same axes as flame source) should not be exceeded, based on lab
testing at a distance of approximately 5.9 ft (1.8 m).
63
Model FL4000H
8.2.2 Mechanical Specifications
Enclosure material:
Color:
Finish:
316 Stainless Steel
Red
Red Wrinkle Powder Coat
8.2.3 Dimensions
Height:
Diameter:
Weight:
4.3" (109 mm)
5.44” (138mm) Base - 3.50" (89 mm) Optical Housing
7.9 lb. (3.6 kg)
8.2.4 Electrical Specifications
Nominal supply voltage:
Range:
Maximum supply
current:
Spectral Range:
Maximum output signal
load:
Output signal range:
FAULT signal:
COPM fault signal:
Ready signal:
WARN signal:
ALARM signal:
Relay Contact Ratings:
RS-485 Output:
Baud Rate:
Status Indicator:
24 VDC
20 to 36 VDC
150 mA
2 – 5 microns (IR)
600 Ω @ 24 VDC
Dual Modbus
HART
0 to 20 mA
3.5 – 20 mA
0 to 0.2 mA
3.5 mA
2.0 ± 0.2 mA
3.5 mA
4.3 ± 0.2 mA
16.0 ± 0.2 mA
20.0 ± 0.2 mA
8 A @ 250 VAC,
8 A @ 30 VDC,
Resistive MAX
Modbus
128 units in series MAX
(247 units with repeaters)
HART(small current)
1.25 – 20 mA
1.25 mA
2.0 ± 0.2 mA
2400, 4800, 9600, 19200, and 38400 Baud
(See Terminal Connections 3-4 for Alarm
Output Connections)
Two LED’s indicate status, fault conditions
8.2.5 Environmental Specifications
Operating temperature range:
Storage temperature range:
Humidity range:
-40°F to 176°F (-40°C to 80°C)
-40°F to 176°F (-40°C to 80°C)
10% to 95% RH, non-condensing
8.2.6 Maximum Cable Parameters
0-20 mA Output Signal
9,000 ft (2,750 m), maximum 50 Ω loop, with maximum 250 Ω input impedance of readout unit.
Remote Power Supply
3,000 ft (930 m), maximum 20 Ω loop and 24 VDC minimum (Section 3.6 ).
64
Model FL4000H
8.3
Regulatory Information
8.3.1 Approvals
Standard
Configuration10
Approvals
ATEX
IECEx
CSA
FM
ULC
HART Communication Foundation (HCF)
CPR (EN 54-10)*
INMETRO
BV Type Approval + MED
IEC 61508 to SIL 3, 2 or 1
X
X
X
X
X
X
X
X
X
HART
X
X
X
X
X
X
X
X
X
X
*Listed as Class 1 for High and Medium Sensitivity and Class 2 for Low Sensitivity
8.3.2 Classification Area and Protection Methods
The FL4000H is certified as follows:
• Protection Method:
Explosion proof, Flame proof, Dust-Ignition proof
• Temperature Class:
T5 (Tamb = -40°C to +80°C)
• Area Classifications:
Class I, Division 1, Groups B, C, and D
Class II, Division 1, Groups E, F, and G
Class III
Zone 1, Group IIC per ATEX / IECEx
Zone 21, Group IIIC per ATEX / IECEx
Ex d IIC T5 Gb, Ex tb IIIC T100°C Db
• EMC/EMI:
EMC Directive (2004/108/EC)
EN 50130-4, EN 61000-6-4
• Environmental Protection: Type 6P Enclosure, IP66/67
10
Dual Modbus with or without relays
65
Model FL4000H
8.4
Response to False Stimuli
The FL4000H detector is immune to a variety of false alarm sources. Below are representative
samples of detector response in the presence of false stimuli.
Table 38: False Alarm Immunity at High Sensitivity
Distance
ft (m)
Modulated
Response
Distance
ft (m)
Unmodulated
Response
Heater (1.5 kW)
6 (1.8)
No alarm
1 (0.3)
No alarm
100 W incandescent lamp
1 (0.3)
No alarm
1 (0.3)
No alarm
Fluorescent lamp (2 40-W
bulbs)
< 1 (0.3)
No alarm
< 1 (0.3)
No alarm
500 W halogen lamp
2 (0.6)
No alarm
< 1 (0.3)
No alarm
Sunlight, reflected
6 (1.8)
No alarm
6 (1.8)
No alarm
–
No alarm
–
No alarm
Hot plate (200°C)
3 (0.9)
No alarm
1 (0.3)
No alarm
Arc welding (#6012, 1/8 in,
180 – 200 A, DC)
5 (1.5)
No alarm
11 (3.4)
No alarm
Arc welding (#6012, 1/8 in,
190 A, AC)
5 (1.5)
No alarm
9 (2.7)
No alarm
Arc welding (#7014, 1/8 in,
180 – 200 A, DC)
15 (4.6)
No alarm
12 (3.7)
No alarm
Arc welding (#7014, 1/8 in,
190 A, AC)
15 (4.6)
No alarm
15 (4.6)
No alarm
Arc welding (#7018, 1/8 in,
180 – 200 A, DC)
15 (4.6)
No alarm
13 (4.0)
No alarm
Arc welding (#7018, 1/8 in,
190 A, AC)
12 (3.7)
No alarm
10 (3.1)
No alarm
False Alarm Source
Sunlight, direct
66
Model FL4000H
Table 39 shows the response characteristics of the FL4000H in the presence of false alarm
sources. The detector is set at a high sensitivity in this illustration.
Table 39: Flame Response in the Presence of False Alarm Sources (High Sensitivity)
Max. Distance
ft (m)
Fire Source
Min. Distance
ft (m)
Sunlight, reflected, unmodulated
6 (1.8)
1 x 1 ft2 heptane
35 (10.7)
Sunlight, reflected, modulated
30 (9.1)
1 x 1 ft2 heptane
30 (9.1)
Heater, unmodulated
1 (0.3)
1 x 1 ft2 heptane
35 (10.7)
Heater, modulated
12 (3.7)
1 x 1 ft2 heptane
35 (10.7)
Incandescent lamp, unmodulated
2.5 (0.8)
1 x 1 ft2 heptane
35 (10.7)
Incandescent lamp, modulated
2.5 (0.8)
1 x 1 ft2 heptane
35 (10.7)
Fluorescent lamp, unmodulated
2.5 (0.8)
1 x 1 ft2 heptane
35 (10.7)
Fluorescent lamp, modulated
2.5 (0.8)
1 x 1 ft2 heptane
80 (24.4)
Halogen lamp, unmodulated
2 (0.6)
1 x 1 ft2 heptane
70 (21.3)
Halogen lamp, modulated
4 (1.2)
1 x 1 ft2 heptane
35 (10.7)
Arc welding (#7014, 3/16 in, 190 A),
unmodulated
12 (3.7)
1 x 1 ft2 heptane
80 (24.4)
Arc welding (#7014, 3/16 in, 190 A),
modulated
15 (4.6)
1 x 1 ft2 heptane
80 (24.4)
False Alarm Source
In general, the operator should try to avoid exposing the detector to false alarm sources. Many
false stimuli such as welding or heaters emit high amounts of IR radiation, which tend to
degrade the performance of the instrument.
8.5
Spare Parts and Accessories
8.5.1 Spare Parts
When ordering Spare Parts and/or Accessories, please contact the nearest General Monitors
Representative or General Monitors directly and give the following information:
•
Part Number
•
Description
•
Quantity
67
Model FL4000H
Table 40: List of Spare Parts
#
1
2
3
4
5
6
Item Description
Window Cleaning Solution
Bracket Assembly
Instruction Manual
Test Lamp
Mounting Bracket
Rain Guard Kit
Part #
10272-1
71370-1
MANFL4000NH
71655-1
71313-1
712006-1
8.5.2 Test Lamp
Due to the advanced discrimination of the FL4000H, the TL105 Test Lamp was developed. The
Test Lamp is a battery operated, rechargeable, test source specifically designed to test General
Monitors’ IR Flame Detection Systems. It consists of a high-energy broadband radiation source
that emits sufficient energy in the infrared spectra to activate the IR detector. To simulate a fire,
the TL105 Test Lamp automatically flashes a signal that the FL4000H recognizes. The lamp
must be set to rotary switch position “4” to be recognized by the FL4000H. See Appendix A for
details.
Operating Instructions
The FL4000H has the ability to be put into a special test mode activated state by momentarily
grounding the test mode pin on the unit or by issuing a Modbus write command to register
0x5A. The unit will respond by going into this test mode activated state and by blinking a unique
flashing pattern with the green LED on for 0.9 seconds and off for 0.1 seconds. The analog
current output will respond by outputting 1.5 mA (3.5 mA with HART and small HART current
disabled). While the FL4000H is activated in test mode via the Test Lamp, the FL4000H will
detect the TL105 Test Lamp as a flame source. The analog output and relays will respond as if
a flame were present. The analog output will rise from 1.5 mA (3.5 mA with HART and small
HART current disabled) to 16 mA (warning condition) and then to 20 mA (alarm). Relays will
trip. In addition, an alternating red/green LED blink pattern is displayed. By momentarily
grounding the test mode pin a second time, or by re-issuing a Modbus write command to
register 0x5A, or after a 3-minute time out, the unit will return to normal operation in the Ready
state.
NOTE: The TL105 Test Lamp triggers the FL4000H into test mode, causing an alarm condition.
It is important to begin a series of flame detector checks with a fully charged Test Lamp. Stand
between 10 and 35 feet from the FL4000H that is to be tested and aim the Test Lamp directly
into the detector window. Press the ON button and be sure the high intensity pulsing beam
strikes the detector face squarely. Hold the Test Lamp as steady as possible.
To conserve charge, do not operate the Test Lamp longer than is necessary to test each
channel.
When the battery level drops below the level required to maintain the proper intensity of the
lamp, an internal low voltage circuit will shut the lamp off until the battery has been recharged.
Please refer to the TL105 Test Lamp manual for complete operating instructions.
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Model FL4000H
Recharging Instructions
NOTE: Charging must be carried out in a non-hazardous area. The charging receptacle is
located inside the housing adjacent to the ON button. To gain access, it is necessary to
unscrew the knurled plug from the body of the unit. The plug is secured to the ON
button by a safety strap to keep it from being lost.
Insert the charging plug into the receptacle. Complete recharging takes 3.5 hours,
minimum.
NOTE: Replace the plug after charging is complete.
It is recommended that the Test Lamp be kept on charge when not in use to prevent
excessive battery discharge. The batteries may be charged an average of 500 times
before the battery pack must be replaced.
8.5.3 Mounting Bracket
A mounting bracket is available to mount the FL4000H to a wall, pole, etc. The
mounting bracket design allows for optical alignment adjustments when utilizing to a
fixed installation. Please refer to Figure 16: Detector Mounting and Installation.
8.5.4 Rain Guard
A rain guard is available for the FL4000H. Install the rain guard per instruction sheet
712013.
Figure 27: Rain Guard Installation
69
Model FL4000H
9.0 Appendix A
Rotary Switch
shown in position 1
for testing FL3100
Flame Detectors (for
FL4000H use
position 4).
Figure 28: Functional Board Located Under TL105 Lamp Assembly
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Model FL4000H
Table 41: Detector Test Mode Initiation or/Detector Alarm Trigger with Test Lamp
Flame Detector
to Test
Rotary Switch
Setting
Maximum Distance
to Detector (ft)
Results
UV & UV/IR
Type V & VI
15
UV & UV/IR Type V & VI
triggers into alarm mode
FL3000
15
FL3000 triggers into alarm
mode
FL3001
35
FL3001 triggers into alarm
mode
FL3002
10
FL3002 triggers into alarm
mode
FL3100
20
FL3100 triggers into alarm
mode
FL3101
35
FL3101 triggers into alarm
mode
FL3102
10
FL3102 triggers into alarm
mode
FL3110
20
FL3110 triggers into alarm
mode
FL3111
35
FL3111 triggers into alarm
mode
FL3112
8
FL3112 triggers into alarm
mode
FL4000H
35 (High Sensitivity)
FL4000H enters test
mode
FL4000H
18 (Medium
Sensitivity)
FL4000H enters test
mode
FL4000H
8 (Low Sensitivity)
FL4000H enters test
mode
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Model FL4000H
ADDENDUM
Product Disposal Considerations
This product may contain hazardous and/or toxic substances.
EU Member states shall dispose according to WEEE regulations. For further General Monitors’ product
WEEE disposal information please visit: www.generalmonitors.com/faqs
All other countries or states: please dispose of in accordance with existing federal,
state and local environmental control regulations.
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