Honeywell FS24X Plus User manual

Honeywell® FS24X Plus™
Advanced multi-spectrum 3IR Flame detector
USER
MANUAL

Table of Contents
Introduction 6
Safety 6
For additional Cautions and Warnings, see Appendices 1 and 2 6
Disclaimer 8
Warranty 8
Copyright Notice 9
Applications 9
Security Guide 10
Specifications 11
Product Overview 14
What’s in the Box 14
Features and Benefits 14
Self-Test 15
Available Spares/Accessories 15
Installation and Commissioning 16
Mounting 16
Opening the Detector 17
Installation Summary 18
Wiring 19
Commissioning the Detector 23
Analog Output: Flame Detected 23
Detector Module Replacement 24
Configuration and Operation 25
Test Lamp Operation 25
Declaration of Conformity 26
Maintenance 26
FS24XPlus™ Material Numbers 26
Product Label 27
Appendix 1: Hazardous Location Installation for FS & SS Series Flame
Detectors and Associated Test Lamps 28
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Overview 28
Safety 28
Nameplate Tag 29
Generic Nameplate View 30
Electrical Ratings 30
Installing the Flame Detector 31
Appendix 2: FM Performance for FS24XPlus™ 32
Product Overview 32
Safety 32
Hazardous Classifications 33
Performance Specifications 33
Available Accessories/Spares 35
What’s in the box? 35
Installation 35
Wiring 36
Wiring Configurations 37
Communication Wiring 38
Configure the Detector (Safe Area) 40
Commissioning the Detector 40
States & Outputs 40
Test Lamps 40
Maintenance 41
Flame Response Sensitivity 42
False Alarm Stimuli Response 43
Appendix 3: Honeywell® FlameManager 45
Install the Honeywell® FlameManager Application 45
Appendix 4: HART® User Information 54
EDD/DTM 54
Access Levels and Password Protection 54
Menu Structure 55
Menu Navigation 59
Error Reporting 59

Connection 59
Appendix 5: HART® Developer Information 60
HART® 60
Device Identification 60
Universal Commands 60
Device-Specific Commands 61
Additional Device Status (Command #48) 62
Command #128: Read Fire Alarm Status 63
Command #130: Read Device Status 64
Command #135: Read Inhibit Status 65
Command #136: Simulate 4-20 mA 66
Command #137: Read Internal Commination Fault Status 67
Command #138: Read Voltage Fault Status 68
Command #139: Read Test Lamp Detection Status 69
Command #140: Read Temperature 70
Command #141: Read Voltage 70
Command #142: Read All Sensor Readings 71
Command #144: Read Model 72
Command #153: Read Device Alarm State 72
Command #154: Set Detector Sensitivity 73
Command #155: Read Detector Sensitivity 74
Command #158: Set Relay Default State 75
Command #159: Read Relay Default State 76
Command #161: Reset Latch 76
Command #162: Set Password 77
Command #164: Read Event History 78
Command #165: Force Relay State 79
Command #166: Force 4-20 mA - Specific Loop Current 79
Command #167: Force HALO State 80
Command #168: Write mA Configuration 81
Command #169: Configure Alarm, Warning State - Latch/Unlatch 81
Command #173: Read HALO Mode for Normal 82
Command #174: Set Date Format 83
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Command #175: Set RTC (Time and Date) 83
Command #176: Read RTC (Time and Date) 84
Command #177: Configure HALO Mode for Alarm 85
Command #178: Read HALO Mode for Alarm 85
Command #179: Read Alarm, Warning State - Latch/Unlatch 86
Command #180: Start/End Inhibit 87
Command #181: Read Inhibit Timeout 87
Command #182: Configure Inhibit Timeout 88
Command #183: Read mA Configuration 89
Command #187: Read Force Timeout 90
Command #188: Configure Force Timeout 90
Command #189: Read Relay State 91
Command #190: Write Login 92
Command #191: Read Date Format 92
Command #192: Read Relay3 (Aux) Input Selection 93
Command #193: Set Relay3 (Aux) Input Selection 94
Command #195: Set Alarm Verification Time 94
Command #196: Write LED Intensity 95
Command #197: Read LED Intensity 96
Command #198: Read Serial Number 97
Common-Practice Commands 97
Tables 98
Performance 99
Appendix 6: Overview of the FS24X Plus™ Modbus Interface 100
Appendix 7: Fault Conditions 102
Appendix 8: Certifications and Approvals 103
Hazardous Area 103
Contact Us 107

CHAPTER
1Introduction
Safety
For additional Cautions and Warnings, see Appendices 1and 2
DANGER
RISK OF IMPROPER FLAME DETECTION
lInstallation, Commissioning, Periodic Testing, Calibration, and all other Maintenance must be
performed only by trained professionals.
lInstall in accordance with all local codes.
lFollow all warnings, cautions, and instructions.
lThe suitability of the system installed is the responsibility of that system’s designer and
installer.
lRoutinely check the system for proper operation and/or damage.
lReplace damaged and/or non-operating devices.
WARNING
RISK OF IMPROPER FLAME DETECTION
lInstall only in areas in accordance with the environmental and hazardous area ratings.
lCarefully review mounting area and position in accordance with the FS24X Plus™ FM
Performance Appendix and this Manual to ensure optimal flame detection regarding the
angle of device and unobstructed view.
lAvoid potential sources of direct or indirect radiation in the flame detector field of view.
lDo not touch the sensors on the front of the electronics module.
lAvoid direct sunlight into the flame detector window – use provided sunshade, aim flame
detectors down at 40 degrees or more when possible, and use multiple detectors to cover
hazardous areas from different directions.
lAvoid close proximity to rapid modulation/chopping of sunlight (creating moving dark
shadows) as optical sensor performance can be reduced, e.g. close trees in the wind, rotating
blades.
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lUse shielded cable for all wirings and ground the shield at one end as detailed in the Wiring
section.
lKeep all devices and wire runs away from mercury vapor lights, variable speed drives, radio
repeaters and other sources of electromagnetic interference.
lFollow local cabling and glanding rules.
lSeal all unused conduit entries and install proper drains/taps as required by local codes.
lDo not try to service parts inside the electronics module, there are no field serviceable parts.
CAUTION
RISK OF PRODUCT DAMAGE
lProtect the detector from physical damage (forklifts, scaffolding, etc.).
lFailure to follow all warnings cautions, and instructions may void the warranty.
lClean detector body and window with a damp cloth.
lSome regulatory agencies requires the use of hazardous area approved plugs, follow local
rules.
lTo maintain IP66/67 integrity, seal on conduit entries with thread sealant such as Loctite 565.
lDo not install in an area where there are incidents of high mechanical damage.
WARNING
RISK OF IMPROPER FLAME DETECTION
lIf internal temperatures rise above acceptable levels, the FS24XPlus™ will issue a Warning,
and if temperatures rise further, the unit will shut off to protect the internal components.
lThe detector may be damaged if external temperatures exceed 75ºC.
lPerform a Test Lamp test to assure proper function. The detector must be returned to
Honeywell® for service if high-temperature shutdown occurs.
CAUTION
RISK OF VULNERABILITY IN NETWORKS
The FSX Plus flame detectors may be vulnerable to a cyber-attack on the HART®and RS-485
networks. Thus, a cautious installation requires physically protecting the 4-20mA loop and the RS-
485 wiring.
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Disclaimer
In no event shall Honeywell® be liable for any damages or injury of any nature or kind, no matter
how caused, that arise from the use of the equipment referred to in this manual.
Strict compliance with the safety procedures set out and referred to in this manual, and extreme
care in the use of the equipment, are essential to avoid or minimize the chance of personal injury or
damage to the equipment.
The information, figures, illustrations, tables, specifications, and schematics contained in this
manual are believed to be correct and accurate as at the date of publication or revision. However, no
representation or warranty with respect to such correctness or accuracy is given or implied and
FS24XPlus™ will not, under any circumstances, be liable to any person or corporation for any loss
or damages incurred in connection with the use of this manual.
The information, figures, illustrations, tables, specifications, and schematics contained in this
manual are subject to change without notice. Unauthorized modifications to the gas detection
system or its installation are not permitted, as these may give rise to unacceptable health and safety
hazards.
Any software forming part of this equipment should be used only for the purposes for which
FS24XPlus™ supplied it. The user shall undertake no changes, modifications, conversions,
translations into another computer language, or copies (except for a necessary backup copy).
In no event shall Honeywell® be liable for any equipment malfunction or damages whatsoever,
including (without limitation) incidental, direct, indirect, special, and consequential damages,
damages for loss of business profits, business interruption, loss of business information, or other
pecuniary loss, resulting from any violation of the above prohibitions.
Warranty
Honeywell® warrants the FS24XPlus™ system against defective parts and workmanship, and will
repair or (at its discretion) replace any components that are or may become defective under proper
usage within 3 years from shipment from Honeywell®.
This warranty does not cover consumables, batteries, fuses, normal wear and tear, or damage
caused by accident, abuse, improper installation, unauthorized use, modification or repair, ambient
environment, contaminants or abnormal operating conditions.
This warranty does not apply to sensors or components that are covered under separate warranties,
or to any 3rd-party cables and components.
Any claim under the Honeywell® Product Warranty must be made within the warranty period and as
soon as reasonably practicable after a defect is discovered. Please contact your local Honeywell®
Service representative to register your claim.
This is a summary. For full warranty terms please refer to the Honeywell General Statement of
Limited Product Warranty, which is available on request.
* A Honeywell® approved representative is a qualified person trained or employed by Honeywell
Analytics, or a qualified person trained in accordance with this manual.

Copyright Notice
Microsoft, MS and Windows are registered trademarks of Microsoft Corp. Other brand and product
names mentioned in this manual may be trademarks or registered trademarks of their respective
companies and are the sole property of their respective holders. FS24XPlus™ is the registered
trademark of FS24XPlus™ Safety and Productivity Solutions (SPS). FS24XPlus™ is a registered
trademark of Honeywell®. Find out more at www.sps.honeywell.com.
Applications
Refineries Gas Processing Plants Offshore Drilling and Production Platforms
Co-generation Plants Gas Collection Facilities Petroleum Product Pipelines & Pumping
Stations
Petrochemical Plants Gas Turbine Enclosures Commercial and Military Aircraft Hangars
Airport Terminals LPG Storage/Distribution Rail and Truck Loading/Unloading Terminals
Engine Test Cells General Warehouses Gasoline Loading Terminals
Power Plants Aerosol Filling Facilities Product Storage Terminals
Marine Terminals Paint and Solvent Storage Crude & Product Tank Farms
Cold Storage Warehouses Marine Engine Rooms Gas Compressor Buildings
Advanced Multi-Spectrum Electro-Optical Flame Detector.
FS24XPlus™: Triple IR
No part of this document may be copied or reproduced without the express written permission of
Honeywell®.
This manual is subject to change without notice.
© 2022 by Honeywell® International Inc.
While this information is presented in good faith and believed to be accurate, Honeywell® disclaims
the implied warranties of merchantability and fitness for a purpose and makes no express warranties
except as may be stated in its written agreement with and for its customers.
In no event is Honeywell® liable to anyone for any indirect, special or consequential damages. The
information and specifications in this document are subject to change without notice.
FS24X, FS24XPlus, WideBand Infrared, WideBand IR, and FirePic are registered trademarks of
Honeywell® International Inc.
Other brand or product names are trademarks of their respective owners.
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Security Guide
The construction of a reliable flame detection system requires protecting the equipment from
unauthorized changes. The installer should comprehensively consider all types of tampering,
including over digital networks. The FS24XPlus™ is not vulnerable to traditional cyberattacks
because it does not contain any type of radio or routable communications protocol such as internet
protocol (IP). Security is usually achieved by listing and then limiting the attack vectors. An “attack
vector” is an approach that a malicious operator might try to exploit to harm the target. Possible
attack vectors are listed below. This has been made as comprehensive as possible to aid analysis.
Some of the attack vectors may be dismissed as trivial.
Cybersecurity traditionally has three goals – integrity, availability, and confidentiality. However,
confidentiality is excluded from the table below because it has lower importance in most flame
detection applications.
Note that the HART® interface is disabled by default. If desired, it can be enabled using
FlameManager.
Attack
Vector
Integrity,
Reliable detection of fire
Availability,
Uptime, No nuisance alarms
Mitigation,
Defense Measures
Disrupt
the front
window
Yes – Foreign material
could block the infrared
energy and prevent
detection of fire.
Yes – Flashing light from malicious
use of the test lamp.
Limit access by
unauthorized personnel.
Analog
signal
wires
Power,
20 mA,
relay
Yes – The detector could
be replaced with a
resistor in the mA loop.
Relay wiring could be cut
or shorted.
Yes – Resistance could be added in
series to generate a fault report or
in parallel to generate an alarm
report. Relay wiring could be cut or
shorted.
The power wiring could be cut,
causing a fault report.
Limit access by
unauthorized personnel.
Regularly perform end-to-
end testing.
HART®
Yes – The detector could
be inhibited, or the
sensitivity could be mis-
set low.
Yes – the outputs can be driven to
alarm state or the sensitivity could
be mis-set high.
Leave the HART® interface
in the default disabled state
unless used. Protect the
cabling from unauthorized
access.
USB-FP2 Secure the enclosure with
the supplied set screw.
RS-485
FP2
Protect cabling or leave RS-
485 terminals
unconnected.
RS-485
Modbus® No – interface is read only. No defense needed.
Note that by default the RS-485 interface is configured for FP2, not Modbus. It can be switched
between these protocols using FlameManager.
Cybercriminals frequently display astonishing creativity. A flame detection system should be
configured to resist attacks years in the future, during the equipment’s entire life cycle. The system
should be regularly tested end-to-end.

Specifications
Temperature:
Operating Temperature (ATEX/IECEx): -55°C to +75°C
Storage Temperature (ATEX/IECEx): -55°C to +85°C
Operating Temperature (North America): -50°C to +75°C
Storage Temperature (North America): -50°C to +85°C
Humidity: 0 to 99% relative humidity, can withstand 100% condensing
humidity for short periods of time.
Field of View (Conical) for
Standard Mount:
The detector has a cone of view for all standard mounts of 90°
(left 45°, right 45°, up 40°, down 50°) horizontal and vertical with
the very high sensitivity on the central axis. Note: At 50% of on-axis
distance horizontally and indoors at very high sensitivity the FoV can extend to 120°
(+/-60°).
Note: See Appendix 2: FS24X Plus™ FM Performance Appendix for FM 3260 FoV
performance.
EN 54-10 Field of View: EN 54-10 Field of View approved to symmetrical 90° (45° off axis
horizontal and vertical rotation).
Test Lamp:
FSX Plus flame detectors are compatible with the Honeywell® TL-
1055 and TL-2055 FSX test lamps.
Verification test distance: 3 to 8m (10 – 25 ft) at high sensitivity.
Recommended test every 3 months.
Operating Voltage: 24 VDC nominal (18-32 VDC) - Regulated
Power Consumption:
1.8 Watts (nominal)
2.4 Watts (Alarm)
12 Watts (max) = 0.50 A @ 24 V with heater ON 100% duty cycle.
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Notes:
lHeater turns ON at -13°F [-25°C] in Normal Operation)
lHeaters are used during extreme cold to bring the internal electronics up to a
minimum temperature. During this time, which can last up to 30 minutes
when the environment has a temperature of -55°C, the internal
microcontrollers are not running, halo will be off and the current loop will
report less than 1.5 mA.
l12W = 0.67 A at 18 V or 0.5 A at 24 V worst case.
Inrush Current is 0.75A for a maximum duration of less than 5ms.
Weight: Aluminum 3 lbs. 11 oz. (1.7 kg)
Stainless Steel 7 lbs. 7 oz. (3.4 kg)
Flame Detection Performance:
See Appendix 2: FS24X Plus™ FM Performance Appendix for
details of specific fuels, detection distances, and false alarm
immunity.
Note that fire is random and chaotic. The Flame detector will
typically respond in less than 10 seconds.
Housing material:
Low Copper (less than 0.25%) marine grade Painted casted
Aluminum of ASTM A356.0 grade.
Polished cast Stainless Steel of ASTM CF8M grade.
Outputs:
Fault, Alarm and Auxiliary SPDT relays Max. 32 Vdc/ac, max. 2 A,
min 10 mA at 12 V resistive load.
4-20 mA source, sink or isolated current output. Uncertainty is 1%
of reading.
FP2 over RS-485 and USB (USB is accessible through Detector
Module electronic device only).
Modbus over RS-485.
HART
The FS24XPlus™ Flame detector has HART® 7 communication;
registered with FieldComm Group. EDD and DTM files are
available.
Local notification indicator:
LEDs HALO Light ring. Shows instrument status.
HALO is visible at 50 ft. in daylight conditions. Suitable for indoor
and night applications.

HALO flash patterns during operation:
Illustration State Default Pattern
Optional
(settable)
Pattern
Off or de-
energized Off Same
Normal
Operation, No
fire
Mostly off,
flashing Green
every 5 seconds
Off
Inhibited Solid Yellow Same
Fault Flashing Yellow
every second Same
Alarm Solid Red Flashing Red
Warning
Flashing Yellow
and Green
Alternate
Same
Mean Time Before Failure:
>10 year MTBF with a commonly used database (e.g. MIL-217,
MIL-217D, or Siemens SN29500). Two calculations - All
components and only safety critical components.
Mounting Bracket:
Compatible with SM4 which has 10 degree increments of
adjustment in horizontal and vertical directions. SM4-M – marine
version available.
Enclosure:
Diameter: 125 mm (4.92 in) x 115 mm (4.52 in) deep; Two M25 X
1.5P or two ¾ ’’ NPT conduit entries.
Window size diameter: 79 mm (3.11 in)
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Product Overview
Honeywell® FS24XPlus™ is an advanced multi-spectrum electro-optical flame detector based on the
WideBand IRTM technology which responds quickly to radiant energy created by flaming fires. It is
suitable for operation in hazardous areas.
The FS24XPlus™ flame detectors are factory calibrated and robust. There is no need of a field
calibration. The sealed design with no moving parts allows for mounting in any orientation even in
harsh environments. These flame detectors are available in either 316 Stainless Steel or Painted Low
Copper Aluminum along with a choice of either two M25 or two ¾ ’’ NPT conduit entries.
These flame detectors operate under adverse weather conditions such as rain, mist, fog and in dirty
environments such as smoke. Please, note that the presence of environmental inhibitors, e.g. smoke,
rain, mist, and fog, can absorb IR radiation and reduce the sensitivity of the detector although
FS24XPlus™ is less affected than other available detection technologies.
What’s in the Box
l1 Certified Flame Detector with stopping plug
l1 Standard Mount (SM4) or Marine Mount (SM4-M)
l1 Sunshade (SH-001)
l1 FS24X Plus™ FM Performance Appendix
l1 Certificate of Conformity
Features and Benefits
3IR sensor technology
lSuperior performance in adverse weather conditions (through smoke, rain, mist and fog)
lAble to operate in harsh and corrosive environments
lHazloc, Performance, SIL 2, and Safety approvals
lPending marine certifications
lBuilt-in test diagnostics
lRobust false alarm avoidance
Ease of Installation
lSmall and light weight
lComes with mount as standard; one person mounting onto varied infrastructure
lComes with sunshade as standard
lSimple wiring with 2 entries and pluggable connections

Ease of Commissioning
lEasy aiming with graduated mount
lEasy guided setup via HART®, RS-485 or USB / PC Application
lSimple test with test lamp
Ease of Maintenance
lSimple bump test with Honeywell® long range test lamps (simply test at height)
lBuilt-in test diagnostics certified to IEC61508
lAdvanced window monitoring
lNo need to calibrate
lPlug and Play design for ease of installation and maintenance
Self-Test
The FS24XPlus™ executes a self-test sequence every minute. All optical sensor channels and the
related processing of sensor data are evaluated to ensure that analog circuits, processors, and
memory are functional. Depending on the function, tests are repeated several times to confirm
device status prior to declaring a fault. In the case of the optical self-test, which evaluates the optical
system by flashing an IR LED and monitoring the reflection from the window, a fault in not declared
until a total of 5 consecutive test attempts have failed. This takes a total of five minutes to complete.
Additional self-tests are conducted on a continuing basis to ensure the continuity of relay coils.
Available Spares/Accessories
lSM4 Swivel Mounting Bracket
lSM4-M Marine Swivel Mounting Bracket
lSH-001 Sunshade
lFVR-01 Field of View Restrictor
lTL-1055 safe area test lamp
lTL-2055 hazardous area test lamp
lElectronics module replacement
lNFPA 72 Connector Kit p/n FS24XP-NFPA-KIT
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CHAPTER
2Installation and Commissioning
Read this manual before starting the installation and commissioning.
Mounting
The FS24XPlus™ IR3 Flame detector is mounted to a structure which may be indoors or outdoors.
The detector is oriented to aim the detector to cover the desired area. Overlapping fields of view and
voting are recommended to deliver the required safety case.
Note: Must only be installed by appropriately trained and accredited personnel.
1. Mount the SM4 or SM4-M bracket.
Note: Select a location with a low chance of mechanical damage and low vibration.
Ensure that the detector has a line of sight to cover the threat location. Avoid obstructions.
Avoid radiant infrared energy sources, which may cause false alarms.
Refer to the sensitivity settings. Note the inverse square law to determine range to a specific
fire type and size.
Make sure that the flame detector is weather tight before leaving in position.
Ensure only approved fittings and plugs are used to seal unused openings. Thread lock on
conduit entries may be required to ensure sealing in areas with heavy rains or chance of
flooding.
Follow all local electrical codes for glands and installation.
Ensure sufficient grease is present on the cover thread before installation. The product can
be made tamper resistant by tightening the set screw.
2. Install the detector on the SM4/SM4-M bracket using the two bolts provided.
Note: We recommend angling all detectors down at least 40 degrees from horizontal. The SM4 and SM4-M mounts have
marked angle graduations.
Note: SM4-M is more resistant to vibration for marine or high-vibration applications.
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Opening the Detector
It is necessary to remove the detector module electronic device from the enclosure to access the
field connections.
CAUTION
RISK OF ELECTRIC SHOCK
Disconnect power before unscrewing the Housing Lid.
1. Loosen, but do not remove, the set screw on the enclosure lid (see Figure below):
2. Turn counterclockwise (CCW) to unscrew the enclosure lid (see Figure below):
3. Loosen the three captive screws on the detector module electronic device (see Figure below):
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4. Slide the detector module electronic device out of the enclosure base (see Figure below):
Installation Summary
1. Loosen, but do not remove the set screw on the cover assembly as shown in Figure 1 in
Opening the Detector section.
2. Unscrew the lid as shown in Figure 2 in Opening the Detector section.
3. Loosen the 3 Philips screws and remove the electro-optical Detector Module and place face
up in a safe location as shown in Figures 3 and 4 in Opening the Detector section.
Note: Do not drop the Detector Module and do not touch the sensor array.
4. Connect the armoured cable gland/conduit to the detector enclosure via the M25 or ¾ ’’ NPT
openings as per national electrical codes for the install location. Connect the appropriate
wires to the pluggable terminal block provided as per the wiring diagram on the cover of the
electro-optical Detector Module and this manual.
Note: Add thread sealant to conduit and cable entries such as Loctite® 565 or equivalent to ensure that no water or dust
ingress is possible.
5. Configuration is done by USB or RS-485 with the PC application available from
www.sps.honeywell.com. See Appendix 3: Honeywell® FlameManager section of this manual.
This is easiest done prior to installation.
Note: Refer to the fuel/sensitivity settings table to determine the correct configuration.
6. Connect the pluggable terminal block back into the electro-optical Detector Module and
secure the captive screws.
WARNING: Do not touch the sensor array as finger oils interfere with infrared signal
transmission.
7. Install the cover and ensure the O-ring is secure. Tighten the set screw on the cover assembly.
Loosen the bolts on the mounting bracket and make a rough FoV adjustment by aiming the
detector at the area you want to cover.
Note: The SM4/SM4-M mounts have 10° incremental graduations on the horizontal and vertical axes.
8. Tighten bolts on mounting bracket mount when FoV adjustments are complete.
Note: The ring terminal is tin plated. If the detector is installed in harsh corrosive environments, the ring terminal should be
protected with a conductive grease.
Note: Detector functionality and communication to safety system should be tested to confirm correct FoV and
configuration.
Note: The FS24XPlus™ runs an initial start-up procedure and is not able to detect flame for the first two minutes after
power is applied.

Wiring
The FS24XPlus™ 3IR Flame detector Electro-Optical Detector Module has pluggable terminal
blocks for interfaces (Power Supply, RS-485, Relay, etc.) with retention for easy wiring and for plug-
in replacement of a module in the field. The terminal block takes 14 AWG to 24 AWG cable with
stranded conductors. Typically 16 AWG or 2.5 mm2 shielded cable is recommended for all wiring.
When connecting to a fire panel, follow NFPA 72 standard. For duplicate terminals and leads for
supervised relay connections to the fire alarm system, use p/n FS24XP-NFPA-KIT NFPA assembly kit
include 6-pin two-row connector as well as 9-pin two-row connector.
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Note: On power-up, the FS24XPlus™ flame detector will run a start-up routine during which current levels maybe not be stable. The
controller should also be set to filter milliamp transients of less than 1 millisecond.