MSA General Monitors FL4000H User manual


Operating Manual
General Monitors® Model FL4000H
Multi-Spectral Infrared
  
OrderNo.:MANFL4000NH/S
PrintSpec:10000005389(EO)
CR:800000060233
MSAsafety.com
US

© MSA 2023. All rights reserved
WARNING!
Theseinstructionsmustbeprovidedtousersbeforeuseoftheproductandretainedforreadyreferencebytheuser.Readthismanualcarefullybefore
usingormaintainingthedevice.Thedevicewillperformasdesignedonlyifitisusedandmaintainedinaccordancewiththemanufacturer's
instructions.Otherwise,itcouldfailtoperformasdesigned,andpersonswhorelyonthisdevicecouldsustainseriousinjuryordeath.

ThewarrantiesmadebyMSAwithrespecttotheproductarevoidediftheproductisnotinstalledandusedinaccordancewiththeinstructionsinthis
manual.Pleaseprotectyourselfandyouremployeesbyfollowingtheinstructions.
PleasereadandobservetheWARNINGSandCAUTIONSinside.Foradditionalinformationrelativetouseorrepair,call1-800-MSA-2222during
regularworkinghours.
ForcountriesofRussianFederation,RepublicofKazakhstanandRepublicofBelarus,thegasdetectorwillbedeliveredwithapassportdocumentthat
includesvalidapprovalinformation.OntheCDwithmanualinstructionattachedtothegasdetectortheuserwillfindthedocuments"TypeDescription"
and"TestMethod"-appendixestoPatternApprovalCertificateofMeasuringinstrument,validinthecountriesofuse.
TheDeclarationofConformitycanbefoundunderthefollowinglink:https://MSAsafety.com/DoC.
MSAisaregisteredtrademarkofMSATechnology,LLCintheUS,EuropeandotherCountries.Forallothertrademarksvisit
https://us.msasafety.com/Trademarks.
GeneralMonitors
16782VonKarmanAvenue,Unit14
Irvine,CA92606
1-949-581-4464
ForyourlocalMSAcontacts,pleasegotoourwebsitewww.MSAsafety.com

US Model FL4000H 3
Contents
1 QuickStartGuide 5
1.1 MountingandWiringtheDetector 5
1.2 ApplyingPowertotheDetector 6
1.3 Testing 6
1.4 AboutthisManual 6
2 BeforeInstallation 6
2.1 SystemIntegrityVerification 6
2.2 CommissioningSafetySystems 7
2.3 ConditionsofUse 7
2.4 GlossaryofTerms 8
3 ProductOverview 9
3.1 GeneralDescription 9
3.2 FeaturesandBenefits 9
3.3 Applications 10
3.4 PrincipleofOperation 10
4 Installation 15
4.1 UnpackingtheEquipment 15
4.2 RequiredTools 15
4.3 DetectorLocationGuidelines 15
4.4 DetectorMountingandInstallation 17
4.5 FieldWiringProcedure 17
4.6 TerminalConnections 18
4.7 SwitchSelectableOptions 23
4.8 PoweringoftheFL4000H 24
4.9 PowerUpGroundingoftheTestandRelayResetLines 24
5 ModbusInterface 25
5.1 Introduction 25
5.2 CommunicationSlaveAddress 25
5.3 BaudRate 25
5.4 DataFormat 25
5.5 SupportedFunctionCodes 25
5.6 ModbusReadStatusProtocol(Query/Response) 25
5.7 ModbusWriteCommandProtocol(Query/Response) 26
5.8 ExceptionResponsesandExceptionCodes 27
5.9 CommandRegisterLocations 28
5.10 CommandRegisterDetails 31
6 Maintenance 41
6.1 GeneralMaintenance 41
6.2 CleaningtheSapphireWindow 41
6.3 SensitivityCheck 42
6.4 Storage 42
7 Troubleshooting 42
7.1 TroubleshootingChart 42
7.2 FinalAssembly 43
8 CustomerSupport 44
8.1 GeneralMonitors'Offices 44
8.2 OtherSourcesofHelp 44

4 Model FL4000H US
9 Appendix 45
9.1 Warranty 45
9.2 Specifications 45
9.3 RegulatoryInformation 47
9.4 ResponsetoFalseStimuli 47
9.5 SparePartsandAccessories 49
10 AppendixA 50

1 Quick Start Guide
US Model FL4000H 5
1 QuickStartGuide
1.1 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.
Figure 1 FL4000H Housing
1. Loosenthecaptivescrews(A)locatedontheopticalhousingassembly.
2. Pulltheopticalhousingassemblyfromthebasehousingassembly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(Figure5).
4. Reassembletheunitusingsteps1thru2inreverse.
CAUTION!
Donotunscrewthefieldwiringcircuitboardfromthebasehousinginordertowiretheunit.
Failuretofollowthiscautioncanresultinminorormoderateinjury.
Figure 2 Mounting Instruction Figure 3 Wall Mounting Assembly

6 Model FL4000H US
2 Before Installation
Figure 4 Bracket Assembly Figure 5 Field Terminations
1.2 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.
1.3 Testing
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4.7SwitchSelectableOptionsandthenchangingthedipswitchsettingslocatedonthebottomof
thepowerboard(SW1).
Theinstrumentisnowreadytooperate.
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,see7Troubleshooting,orcallthefactorydirect.
1.4 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.
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).
2 BeforeInstallation
2.1 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.

2 Before Installation
US Model FL4000H 7
2.2 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.
2.3 ConditionsofUse
WARNING!
• Toxic,combustible,andflammablegasesandvaporsaredangerous.Extremecautionshouldbeusedwhenthese
hazardsarepresent.
• Keepcovertightwhilecircuitsarealive.
• Donotopenwhenanexplosiveatmosphereispresent.
Failuretofollowthesewarningscanresultinseriouspersonalinjuryordeath.
• AnEnd-Of-Line(EOL)resistorwithamaximumpowerdissipationofupto0.6Wmaybefittedinthecircuitinsidethe
enclosure;however,itmustbeinstalledbytheuser/installerinaccordancewiththerelevantinstructionsthatare
stipulatedinthemanufacturer'sproductmanual.
NOTE:Usefastenerswithyieldstress450MPa.
• TheFL4000HFlameDetectorflangedjoint,betweenthewindowcoverandmainbody,maybesitedtowithina
distancenolessthan9.62mmofanyadjacentsurface,oritssunshieldwhenfitted.
• 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.
• 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.

8 Model FL4000H US
2 Before Installation
2.4 GlossaryofTerms
Term/Abbreviation Definition
A Amps
AC AlternatingCurrent
ANN ArtificialNeuralNetwork
AWG AmericanWireGauge
BaudRate Thenumberofsignallevelchangespersecondinaline,regardlessoftheinformationcontentof
thosesignals
bps Bitpersecond
CableArmor Cablehavinginterlockedorcorrugatedarmorwhereitisessentialtoprovidepositivegrounding
ofcablearmor
CableScreen Meshsurroundingacable
COM DCGround
COPM ContinuousOpticalPathMonitoring
CR ControlRoom
CRC CycleRedundancyCheck
DC DirectCurrent
DCS DistributedControlSystem
De-Energized Todisconnectfromapowersource
DSP DigitalSignalProcessor
EEPROM ElectricallyErasableProgrammableRead-OnlyMemory
EMI ElectromagneticInterference
Energized Toapplyvoltageorenergy
FOV FieldofView
FS FullScale
GM GeneralMonitors
HART HighwayAddressableRemoteTransducer-communicationprotocol
Hex HexadecimalNumber
I/O Input/Output
InstrumentEarth Groundedusingagroundingstrap
Latching Referstorelaysremaininginthe“on”stateevenafterthe“on”conditionhasbeenremoved
LED LightEmittingDiode
LSB LightSignificantBit
mA Milli-Ampsrefersto1/1000ofanAmp
Master Controlsoneormoredevicesorprocesses
Modbus Master-slavemessagingstructure
N/A NotApplicable
NC NormallyClosed
NO NormallyOpen
Non-Latching Referstorelaysbeingresettotheinitialstateafter“on”conditionhasbeenremoved
NPT NationalPipeThread

3 Product Overview
US Model FL4000H 9
Term/Abbreviation Definition
OVReturn Overvoltagereturn
OVDC PowerSupplyCommonGround
Oxidation CombiningwithOxygen
PCB PrintedCircuitBoard
PLC ProgrammableLogicController
ppm Partspermillion
RFI RadioFrequencyInterference
RMS Root-Mean-Square
ROM ReadOnlyMemory
RTV RoomTemperatureVulcanization
SafetyEarth Groundedtotheearth
Slave Oneormoredevicesorprocessescontrolledbyamastercontroller
SMT SurfaceMountTechnology
SPANValue Theprogrammedrangeofmeasurablepartspermillion
SPDT SinglePole,DoubleThrow
SPST SinglePole,SingleThrow
TB TerminalBlock
V Volts
VAC VoltsAlternatingCurrent
VDC VoltsDirectCurrent
XP ExplosionProof
3 ProductOverview
3.1 GeneralDescription
Figure 6 FL4000H Front View
TheGeneralMonitorsFL4000HisaMultiSpectralInfrared(MSIR)FlameDetector
(Figure6).TheFL4000Hemploysstate-of-theart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(9.3.2
ClassificationAreaandProtectionMethods).Itcanalsobeusedforgeneral-purpose,
nonhazardousapplications.
3.2 FeaturesandBenefits
HighFalseAlarmImmunity:ProvidesreliableflamedetectionperformancebyutilizingaproprietaryANNprocessing
algorithmtominimizefalsealarms.RefertoTable37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.

10 Model FL4000H US
3 Product Overview
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.
3.3 Applications
TheFL4000Hprovidesflamedetectionforawiderangeofapplications,including,butnotlimitedtothefollowing:
Industries SampleApplications
OilandGas OnandOffshorePlatforms
GasPipelines CompressorBuildings
Airports/Military AirplaneHangars
GasTurbines TurbineEnclosures
ChemicalPlants ProcessBuildings
LoadingTerminals TruckingOn/OffLoadingAreas
Petrochemical ProcessAreas
Refineries TankFarmsandProcessAreas
Table 1 Sample Industry Applications
3.4 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
NOTE:Referto4Installationand5ModbusInterfaceformoreinformationondetectoroutputs.
3.4.1 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LEDflashingsequencesinTable2indicatevariousoperatingconditions:

3 Product Overview
US Model FL4000H 11
# State Red Green Notes
1 Powerup 0.5secondsOn 0.5secondsOn Alternating15seconds
2 Ready Off 5secondsOn
0.5secondsOff

3 Warning 0.5secondsOn
0.5secondsOff
Off 
4 Alarm 0.2secondsON
0.2secondsOFF
Off 
5 COPMFault Off 0.5secondsOn
0.5secondsOff

6 LowVoltage,Codeor
Date,ChecksumFault
Off 0.2secondsON
0.2secondsOFF

7 TestModeActivated Off 0.9secondsON
0.1secondsOFF

8 TestModeWarning 0.5secondsOn 0.5secondsOn AlternatingwhiledetectingTestLamp
9 TestModeAlarm 02.secondsOn 0.2secondsOn AlternatingwhiledetectingTestLamp
Table 2 LED sequence for each operating condition
3.4.2 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.
Failuretofollowthiscautioncanresultinminorormoderateinjury.
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.
3.4.3 TestModeInitiation
NOTE:TheFL4000NH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. FlashingoftheTestLamp
2. Momentarygroundingoftestwire
NOTE: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.
3. Modbuscommand
4. HARTcommand(availableinHARTconfigurationonly)

12 Model FL4000H US
3 Product Overview
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.
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2.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2),andsettingthe
relaytoWarningState.
• Afterauser-selectabletimedelayof0-30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
2)“Warning”mode.
NOTE: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.
• 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2),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.
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2).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:
• 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2).
• 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2).
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).

3 Product Overview
US Model FL4000H 13
*Usersettingviadipswitch(0,8,10,or14seconds)orModbus(0-30seconds)
**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)

14 Model FL4000H US
3 Product Overview
*Factoryprogrammable
Figure 8 Grounding of Test Wire or Modbus Command Options

4 Installation
US Model FL4000H 15
4 Installation
WARNING!
• Thedevicecontainscomponentsthatcanbedamagedbystaticelectricity.Alwaysweargroundingapparelwhen
handlingorinstallingtheunit.
• OnlypersonneltrainedandqualifiedintheHARTcommunicationprotocolmayinstallandusetheHART
configurationofthedevice.
• Onlytrainedandauthorizeduserscanconfigurethedevice.
• ThedevicemustbeinstalledinaccordancewithNFPA72requirements.
Failuretofollowthesewarningscanresultinseriouspersonalinjuryordeath.
Thebasicstepsinatypicalinstallationarelistedinthesectionsthatfollow.Theinstallationprocessmayvarydependingon
theexactsiteconfiguration.
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.
4.1 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,contactGeneralMonitors.Referto8Customer
Support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.
4.2 RequiredTools
ThefollowingtoolsarerequiredtoinstalltheFL4000H:
Tool Use
5mmAllenwrench Tofasten/removefrontassemblyfrombase(included)
Flat-headscrewdriver
3/16(5mm)maximum
ToconnectwiresintotheTerminalBlock(included)
Adjustablewrench Tomakeconduitandcableglandconnections(notincluded)
Table 3 Required Tools
4.3 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in2BeforeInstallation,3
ProductOverview,and4Installationshouldbeconsideredinregardtoparticularconditionsatthesitewheretheunit(s)is
beinginstalled.
4.3.1 DetectorFieldofView
EachFL4000HFlameDetectorhasamaximumrangeof210feet(64m).TheFOVhasitsvertexatthecenterofthe
detector.
NOTE:Maximum specified FOVistheangleatwhichFL4000Hcandetecttheflameat50%ofthemaximumspecified
range.

16 Model FL4000H US
4 Installation
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,Figure10,Figure11,Figure12,Figure13,andFigure
14.
FieldofView:Horizontal FieldofView:Vertical
MaxSpecifiedRange MaxSpecifiedFOV MaxSpecifiedRange MaxSpecifiedFOV
210ft(64m) 90° 230ft(70m) 75°
100ft(31m) 100° 100ft(30m) 80°
30ft(9m) 90° 30ft(9m) 90°
Table 4 Maximum Specified Fields of View at High Sensitivity
Figure 9 Horizontal FOV - n-Heptane -
High Sensitivity
Figure 10 Horizontal FOV - n-Heptane -
Medium Sensitivity
Figure 11 Horizontal FOV - n-Heptane
- Low Sensitivity

Figure 12 Vertical FOV - n-Heptane -
High Sensitivity
Figure 13 Vertical FOV – n-Heptane –
Medium Sensitivity
Figure 14 Vertical FOV – n-Heptane –
Low Sensitivity
4.3.2 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).Table5showsthespecifiedrangesfora
givensensitivitysetting.
SensitivitySetting SpecifiedRange
Low 60ft(18m)
Medium 120ft(37m)
High 210ft(64m)

4 Installation
US Model FL4000H 17
Table 5 Sensitivity Setting for n-Heptane
4.3.3 EnvironmentalFactors
• Observetheambienttemperaturerangeforthespecificmodel–referto9.2.5EnvironmentalSpecifications.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.
4.4 DetectorMountingandInstallation
TheFL4000Hisenclosedinanexplosionproofassembly,whichisratedforuseintheenvironmentsspecifiedin9.3.2
ClassificationAreaandProtectionMethods.
• 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.
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15andtheoverallproductdimensionsaredepictedinFigure16.
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.
AFL4000HUnit
BMountingPin
CMountingClamp
DMountingBracket
Figure 15 Detector Mounting and Installation Figure 16 Dimensional Drawing
4.5 FieldWiringProcedure
WARNING!
Readallelectricalwarningsandwiringrequirementsbeforeconnectingpowertothedevice.
Failuretofollowthiswarningcanresultinseriouspersonalinjuryordeath.

18 Model FL4000H US
4 Installation
Figure 17 FL4000NH Housing
1. Loosenthecaptivescrews(A)locatedontheOpticalHousingAssembly.
2. PulltheOpticalHousingAssemblyfromtheBaseHousingAssembly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4.6.1thru
4.6.12.
NOTE:Foranexampleofwiring,pleaserefertotheconnectiondiagramin
Figure5.
4. Setswitchselectableoptionsasdescribedin0.1SwitchSelectableOptions.
5. Reassembletheunitusingsteps1thru2inreverse.
WARNING!
• Toxic,combustible,andflammablegasesandvaporsaredangerous.Extremecautionshouldbeusedwhenthese
hazardsarepresent.
• Keepcovertightwhilecircuitsarealive.
• Donotopenwhenanexplosiveatmosphereispresent.
Failuretofollowthesewarningscanresultinseriouspersonalinjuryordeath.
4.6 TerminalConnections
Figure 18 Wire-Strip Lengths
1. 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(Figure18).
Toconnectthewiretotheterminalblock(A),inserttheconductorintotheconnection
space(Figure19)andtightenthecorrespondingscrewterminal.
Figure 19 Base Housing and Terminal Blocks

4 Installation
US Model FL4000H 19
TerminalBlock-P2 TerminalBlock-P1
Pin# Description Pin# Description
10 WARN2 1 FLT2
9 WARN1 2 FLT1
8 WARNC 3 FLTC
7 ALMC 4 TEST_10(TestMode)
6 ALM1 5 COM1+/DATA1+
5 ALM2 6 COM1-/DATA1-
4 RLY_10(RelayReset) 7 0-20mA
3 COM2+/DATA2+ 8 +24VIn
2 COM2-/DATA2- 9 GND/COM
1 CAL_IO 10 CHGND/CHASGND
(ChassisGround)
Table 6 Terminal Block Connections
Therearetwentypossibleterminalconnections.
Sections4.6.1,4.6.2,and4.6.4provideadescriptionandspecificationforeachconnection.
4.6.1 AlarmRelay
TerminalBlock ConnectionPoint BlockName UserRelaySettings
   NormallyDe-
energized
NormallyEnergized
P2 Term5 ALM2 AlarmNO AlarmNC
P2 Term6 ALM1 AlarmNC AlarmNO
P2 Term7 ALMC AlarmCommon AlarmCommon
NOTE:NO-NormallyOpen;NC=NormallyClosed
Table 7 Alarm Relay Terminals
Figure 20 Terminal Connections
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(RS485)ortheuserselectabledipswitch(0.1SwitchSelectable
Options).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.Referto4.7.1
TimeDelaySettings.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.
NOTE:ForULC-recommendedwiring,pleaseseeFigure5.

20 Model FL4000H US
4 Installation
4.6.2 WarningRelay
TerminalBlock ConnectionPoint BlockName UserRelaySettings
   NormallyDe-
Energized
NormallyEnergized
P2 Term8 WARNC WarnCommon WarnCommon
P2 Term9 WARN1 WarnNC WarnNO
P2 Term10 WARN2 WarnNO WarnNC
NOTE:NO-NormallyOpen;NC=NormallyClosed
Table 8 Warning Relay Terminals
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(0.1SwitchSelectableOptions).TheWARNrelaycontactratingsare8A@250VACand8A@30VDC.
RefertoFigure20forallrelayconnections.
4.6.3 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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.
4.6.4 FaultRelay
TerminalBlock ConnectionPoint BlockName NormallyEnergized
P1 Term1 FLT2 FaultNC
P1 Term2 FLT1 FaultNO
P1 Term3 FLTC FaultCommon
NOTE:NO-NormallyOpen;NC=NormallyClosed
Table 9 Fault Relay Terminals
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.