FlowLine DataPoint LC52 Series User manual

RevA2LC9000071of18
DataPoint
ContinuousRelayController
LC52SeriesManual
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2of18LC900007RevA2
INTRODUCTION/TABLEOFCONTENTSStepOne
TheLC52SeriesContinuousRelayControllerisageneral‐purposelevelcontrollerwhichprovidessingletank
levelindicationwithdualrelaysandarepeater4‐20mAoutput.TheLC52Seriesfeaturesbothasingle12A
SPDTandasingle12ALatchingSPDTrelay.Thispackageallowsforasystemthatcanperformautomatic
operations(fillorempty)andanalarmoperation(highorlow).TheLC52seriescanalsobeacontrollerthat
canperformdualalarms(2‐high,2‐lowor1‐high,1‐low).Packagethecontrollerwithatransmitterthat
providesa4‐20mAoutputandanenclosuretoprotectthecontrollerfromtheelements.
Features
3.5digitLEDdisplayindicateslevelincustomerengineeringunits.
Fail‐Saferelaycontrolofpumps,valvesoralarmswitha0.15to60seconddelay.
PolypropyleneenclosurecanbeDINrailmountedorbackpanelmounted.
Easysetupwithpushbuttoncalibrationfordisplayandrelaysettings.
ACpowered
TableofContents
Specifications:.........................................................................................................................................................3
Dimensions:.............................................................................................................................................................3
SafetyPrecautions:.................................................................................................................................................4
MakeaFail‐SafeSystem:............................................................................................................................5
Components:...............................................................................................................................................5
Installation:............................................................................................................................................................5
GettingStarted:.......................................................................................................................................................6
FeaturesoftheSingleInputHighorLowAlarmRelay:..............................................................................6
FeaturesoftheLatchingRelay(AutomaticFillorEmpty):.........................................................................6
GuidetoControls:.......................................................................................................................................7
Electrical:.................................................................................................................................................................8
WiringtoInputTerminals:.........................................................................................................................8
SettingInputPolarity:.................................................................................................................................9
RepeaterOutput:........................................................................................................................................9
VACPowerInputWiring:.........................................................................................................................10
Changingfrom120to240VAC:...............................................................................................................10
RelayInputWiring:...................................................................................................................................10
ApplicationExmaples:...........................................................................................................................................11
LowLevelAlarm:.......................................................................................................................................11
HighLevelAlarm:......................................................................................................................................11
AutomaticFill:...........................................................................................................................................12
AutomaticEmpty:.....................................................................................................................................12
Programming:......................................................................................................................................................13
Appendix:..............................................................................................................................................................14
ControllerLogic:........................................................................................................................................14
RelayLatchingLogicTable:.......................................................................................................................14
FactoryReset:...........................................................................................................................................14
LockoutFunction:.....................................................................................................................................16
Troubleshooting:.......................................................................................................................................15
Exercise:...............................................................................................................................................................16
Warranty,Returns&Limitations:.........................................................................................................................18

RevA2LC9000073of18
SPECIFICATIONS/DIMENSIONSStepTwo
Displaytype: LED,3.5digit
Displayunits:Engineering
Displayoutput:0to999or0.0to199.9
LEDindicators: Powerandrelaystatus
Bargraphdisplay: 4‐20mAwithsetpoints
Configuration: Pushbutton
Alarmindication: Amber:<4mA
Red:>20mA
Security: Lockoutmode
Sensorinput: (1) 4‐20mAtransmitter
Supplyvoltage: Selectable120VAC/240VAC
50‐60Hz.
Consumption: 5Wattmaximum
Sensorsupply: 24VDC@25mA(primary)
28VDC@50mA(secondary)
Contacttype: (1) SPDT
(1) LatchedSPDT
Contactrating: 250VAC,12A,½Hp
Contactoutput: Selectable,NOorNC
Contactlatch:ONorOFF
Contactconfiguration: 1:Highorlowlevelalarm
2:Highandlowlevelalarm
3:Automaticfillorempty
4:Automaticfilloremptywithalarm
Contactdelay: 0.15‐60seconds
Failsafety: Powerfail‐safe
Repeateroutput: 4‐20mA,12‐36VDC
Ambienttemperature: F:‐40°to158°
C:‐40°to70°
Enclosuretype: 35mmDIN(EN50022)
Enclosurematerial: Polypropylene
(U.L.94VO)
CECompliance: EN50082‐2immunity
EN55011emission
EN61010‐1Safety
TopView‐AllModels
SideView‐AllModels
InternalControllerLogic

4of18LC900007RevA2
SAFETYPRECAUTIONSStepThree
AboutThisManual:PLEASEREADTHEENTIREMANUALPRIORTOINSTALLINGORUSINGTHISPRODUCT.
ThismanualincludesinformationonthecontinuousrelaycontrollerfromFLOWLINE:LC52‐1001series.
User’sResponsibilityforSafety:FLOWLINEmanufacturesseveralmodelsofcontroller,withdifferent
mountingandswitchingconfigurations.Itistheuser’sresponsibilitytoselectacontrollermodelthatis
appropriatefortheapplication,installitproperly,performtestsoftheinstalledsystem,andmaintainall
components.
ElectricalShockHazard:Itispossibletocontactcomponentsonthecontrollerthatcarryhighvoltage,
causingseriousinjuryordeath.Allpowertothecontrollerandtherelaycircuit(s)itcontrolsshouldbe
turnedOFFpriortoworkingonthecontroller.Ifitisnecessarytomakeadjustmentsduringpowered
operation,useextremecautionanduseonlyinsulatedtools.Makingadjustmentstopoweredcontrollers
isnotrecommended.Wiringshouldbeperformedbyqualifiedpersonnelinaccordancewithallapplicable
national,stateandlocalelectricalcodes.
FlammableorExplosiveApplications:TheLC52seriescontinuousrelaycontrollersshouldnotbeusedwith
explosiveorflammableliquids,whichrequireanintrinsicallysafeorexplosionproofrating.Ifyouare
unsureofthesuitabilityofacontrollerforyourinstallation,consultyourFlowlinerepresentativefor
furtherinformation.
InstallInaDryLocation:Thecontrollerhousingisnotdesignedtobeimmersed.Wheninstalledproperly,
itshouldbemountedinsuchawaythatitdoesnotnormallycomeintocontactwithliquid.Refertoan
industryreferencetoensurethatcompoundsthatmaysplashontothecontrollerhousingwillnotdamage
it.Suchdamageisnotcoveredbythewarranty.
RelayContactRating:Therelayisratedfora12ampresistiveload.Manyloads(suchasamotorduring
start‐uporincandescentlights)arereactiveandmayhaveaninrushcurrentcharacteristicthatmaybe10
to20timestheirsteady‐stateloadrating.Theuseofacontactprotectioncircuitmaybenecessaryfor
yourinstallationifthe12ampratingdoesnotprovideanamplemarginforsuchinrushcurrents.Incritical
applications,redundantbackupsystemsandalarmsmustbeusedinadditiontotheprimarysystem.Such
backupsystemsshouldusedifferentsensortechnologieswherepossible.

RevA2LC9000075of18
SAFETYPRECAUTIONS/INSTALLATIONStepThree
MakeaFail‐SafeSystem:Designafail‐safesystemthataccommodatesthepossibilityofrelayorpower
failure.Ifpoweriscutofftothecontroller,itwillde‐energizetherelay.Makesurethatthede‐energized
stateoftherelayisthesafestateinyourprocess.Forexample,ifcontrollerpowerislost,apumpfillingatank
willturnoffifitisconnectedtotheNormallyOpensideoftherelay.
Whiletheinternalrelayisreliable,overthecourseoftimerelayfailureispossibleintwomodes:undera
heavyloadthecontactsmaybe“welded”orstuckintotheenergizedposition,orcorrosionmaybuildupona
contactsothatitwillnotcompletethecircuitwhenitshould.Incriticalapplications,redundantbackup
systemsandalarmsmustbeusedinadditiontotheprimarysystem.Suchbackupsystemsshoulduse
differentsensortechnologieswherepossible.
WhilethismanualofferssomeexamplesandsuggestionstohelpexplaintheoperationofFLOWLINEproducts,
suchexamplesareforinformationonlyandarenotintendedasacompleteguidetoinstallinganyspecific
system.
Components:
LC52‐1001 ‐Singleinputwithdualrelays,3.5digitLEDdisplayandrepeateroutput.
Owner’sManual

PanelDINRailMounting:Thecontrollermaybemountedbyeitherabackpanelusingtwoscrewsthrough
mountingholeslocatedatthecornersofthecontrollerorbysnappingthecontrolleron35mmDINRail.
 
Note:Alwaysinstallthecontrollerinalocationwhereitdoesnotcomeintocontactwithliquid.




6of18LC900007RevA2
GETTINGSTARTEDStepFour
FeaturesofaSingleInputHighorLowRelay:SingleInputRelays(Relay1orRelay2w/latchturnedOFF)are
designedtoswitchfromasingleset‐point.ItturnsitsinternalrelayONorOFF(assetbytheinvertswitch)in
responsetothepresenceofliquid,andchangestherelaystatusbackagainwhenthesensorisdry.
HighAlarm:InvertisOFF.
Relaywillenergizewhenthe
levelrisesabovethehighalarm
settingandwillde‐energize
whenitdropsbelowthehigh
alarmsetting.
LowAlarm:InvertisON.Relay
willenergizewhenthelevel
dropsbelowthelowalarm
settingandwillde‐energize
whenitrisesabovethelow
alarmsetting.
Singleinputhighorlowrelaysmaybeusedwithanydevicethatoutputsa4‐20mAsignal.Therelayisasingle
pole,doublethrowtype;thecontrolleddevicecanbeconnectedtoeitherthenormallyopenornormally
closedsideoftherelay.Atimedelayfrom0.15to60secondscanbesetbeforetherelayrespondstothe
sensorinput.Typicalapplicationsforsingleinputrelaysarehighlevelorlowlevelswitch/alarmoperations
(openingadrainvalvewheneverliquidlevelrisestoaset‐point)andover‐flowprotection(turningoffapump
orsoundinganalarmwhenahighlevelisreached).
FeaturesofaLatchingRelay(automaticfillorempty):Thelatchingrelay(relay2only)isdesignedtoswitcha
relayonandoffattwodifferentlevels.ItturnsitsinternalrelayONorOFF(assetbytheinvertswitch)in
responsewhenthelevelisabovethehighsettingorbelowthelowsetting.Therelaywillnotchangeitsstate
whenthelevelisbetweenthehighandlowsetting.
AutomaticEmpty:
LatchisON&InvertisOFF.Relay
willenergizewhenlevelreaches
highsetting(bothsettingsare
submersed).Relaywillde‐energize
whenlevelisbelowthebottom
setting(bothsettingsaredry).
AutomaticFill:
LatchisON&InvertisON.Relay
willenergizewhenlevelisbelow
thebottomsetting(bothswitches
aredry).Relaywillde‐energize
whenlevelisabovethehigh
setting(bothsettingsarewet).


RevA2LC9000077of18
GETTINGSTARTED(continued)StepFour
TheLatchingRelay(AutomaticFill/Empty)maybeusedwithanydevicethatoutputsa4‐20mAsignal.The
relayisasinglepole,doublethrowtype;thecontrolleddevicecanbeconnectedtoeitherthenormallyopen
ornormallyclosedsideoftherelay.TypicalapplicationsforLatchingRelaysareautomaticfilling(startingfill
pumpatalowlevelandstoppingpumpatahighlevel)orautomaticemptyingoperations(openingadrain
valveatahighlevelandclosingvalveatlowlevel).
GuidetoControls:Belowisalistingandthelocationofthedifferentcomponentsforthecontroller:

1. Powerindicator:ThisGreenLEDlightswhenACpowerisON.
2. Relayindicator:ThisRedLEDwilllightwheneverthecontrollerenergizestherelay,inresponsetothe
transmitterinputandafterthetimedelay.
3. ACPowerterminals:Connectionof120VACpowertothecontroller.Thesettingmaybechangedto240
VACifdesired.Thisrequireschanginginternaljumpers;thisiscoveredintheInstallationsectionofthe
manual.Polarity(neutralandhot)doesnotmatter.
4. Relayterminals(NC,C,NO):Connectthedeviceyouwishtocontrol(pump,alarmetc.)tothese
terminals:supplytotheCOMterminal,andthedevicetotheNOorNCterminalasrequired.The
switcheddeviceshouldbeanon‐inductiveloadofnotmorethan10amps;forreactiveloadsthecurrent
mustbederatedorprotectioncircuitsused.WhentheredLEDisONandtherelayisintheenergized
state,theNOterminalwillbeclosedandtheNCterminalwillbeopen.
5. Invertswitch:Thisswitchreversesthelogicoftherelaycontrolinresponsetotheswitch(es):conditions
thatusedtoenergizetherelaywillnowde‐energizetherelayandviceversa.
6. Timedelay:Setsdelayfrom0.15‐60seconds.HoldDelaybuttontoincreasedelayin5secondincrements.
7. Digitaldisplay:Showsthecurrent4‐20mAsignalinengineeringunits.
8. Inputterminals:Connectthetransmitterwirestotheseterminals:A24VDCpowerisprovidedfor
currentloopwithanadditional28VDCpowerterminalifrequired.
9. Latchswitch(relay2):Thisswitchdetermineshowtherelaywillbeenergizedinresponsetothetwoset
points.WhenLATCHisOFF,therelayrespondstosetpointRLY2Aonly;whenLATCHisON,therelaywill
energizeorde‐energizeonlywhenbothsetpoints(RLY2AandRLY2B)areinthesamecondition(bothwet
orbothdry).Therelaywillremainlatcheduntilbothsetpointschangeconditions.
10. BarGraph:Displays4‐20mAsignalasapercentageoftherange.
11. OP/SET:Usedtoscrollbetweensetpointsduringprogramming.
12. 20/Down:UsedtodecreasedisplayvalueduringprogrammingandforEasyCal™Spansetup.
13. 4/Up:UsedtoincreasedisplayvalueduringprogrammingandforEasyCal™Offsetsetup.
14. RepeaterOutput:Isolatedterminalwhichreproducestheinput4‐20mAsignal.Terminalrequires12‐36
VDCpowerforoperation.




8of18LC900007RevA2
ELECTRICALStepFive
WiringtoInputTerminals:Signalinputisalwaysthroughthe24VDCterminal.The28VDC
terminalisusedasanalternativepowersupplyforthree‐wiredevices.Pleasenotea
differencebetween2‐wireand3‐wireleveltransmittersandsourcingandsinkingmodes
below.BelowisaquickreviewofwiringtheLC52seriestocommon4‐20mAtransmitters.

EchoSonicII(LU23,LU27,LU28&LU29series)
&EchoPod(DL10,DL14,DL24&DL34series)
Sourcingmode(FactorySetting)
EchoSpan(LU80,LU81,LU83&LU84series)
SourcingMode(FactorySetting)

Echotouch(LU30‐5004andLU30‐5064only)
SourcingMode(FactorySetting)
Echotouch(LU30‐5003andLU30‐5063only)
Sinkingmode(internaljumpermustbechanged)

DeltaSpanpressure(LD30,LD31,LD32,LD34&
LD35series)SourcingMode(FactorySetting)
FloaTek(LV55series)
SourcingMode(FactorySetting)




RevA2LC9000079of18
ELECTRICAL(continued)StepFive
Echotouch(IntrinsicallySafe)(LU20‐5001‐IS&LU20‐5061‐IS)
Sinkingmode(internaljumpermustbechanged)

SettingInputPolarity(Sourcingvs.Sinkingmodes):TheLC52canbesetinoneoftwomodes,sourcingand
sinking.TheLC52isshippedfromthefactoryinthesourcingmode.Thisiscompatiblewithanylooppowered
transmittersuchastheEchoSonicII(LU23,LU27,LU28&LU29series),EchoSpan(LU80,LU81,LU83&LU84
series),EchoPod(DL10,DL14,DL24&DL34series),DeltaSpanpressure(LD30,LD31,LD32,LD34&LD35series)
andFloTek(LV55series)andthethree‐wireEchotouch(LU30‐5004andLU30‐5064only)withnoadjustment
required.IfusingaLU30‐5003,LU30‐5063,LU20‐5001‐ISorLU20‐5061‐IS,followtheinstructionsbelow.
1. Removethebackpanelofthecontrollerandgentlyslide theprintedcircuit
board(PCB)fromthehousing.UsecautionwhenremovingthePCB.
2. LocatejumpersJWAandJWBonthePCB.
3. Tochangefromsourcingtosinking,removejumperfromJWAandplaceon
JWB.TheLC52isshippedfromthefactoryinthesourcingmode(JWA
active).
4. GentlyreturnPCBintohousingandreplacebackpanel.
Note:Looppowereddevicescanoperateineitherthesouringorsinkingmodes.
SourcingMode
SinkingMode


NoChange
Required
EchoSonicII(LU23,LU27,LU28&LU29series),EchoSpan(LU80,LU81,
LU83&LU84series),EchoPod(DL10,DL14,DL24&DL34series),
DeltaSpanpressure(LD30,LD31,LD32,LD34&LD35series),FloaTek
(LV55series)andEchotouch(LU30‐5004andLU30‐5064only)
Sinkingor
Loop
Devices
Change
RequiredLU30‐5003,LU30‐5063,LU20‐5001‐ISorLU20‐5061‐ISSourcing Devices

RepeaterOutput:Theisolatedrepeateroutputreproducesthe
input4‐20mAcurrentsignal.Thissignalcanberepeatedtoany
otherdevicethatacceptsa4‐20mAinput,suchasaPLC,DCS,
SCADA,chartrecorderoranotherdisplay.Therepeated4‐20
mAsignalisnotanexcitedoutput.Anexternalpowersupplyis
requiredandshouldnotexceedamaximumof36VDC.See
thewiringdiagramtotherightforinstructionsinwiringall
threecomponents(repeateroutput,powersupplyandthenew
device)inserieswitheachother.




10of18LC900007RevA2
ELECTRICAL(continued)StepFive
VACPowerInputWiring:ObservethePOWERSUPPLYlabelontheLC52series.Thelabelidentifiesthepower
requirement(120or240VAC)andtheterminalwiring.Note:PolaritydoesnotmatterwiththeACinput
terminal.



Changingfrom120to240VAC:TheLC52‐1001isshippedfromthefactoryconfiguredasa120VACpowered
device.Toswitchto240VAC,followtheinstructionsbelow.
1. Removethebackpanelofthecontrollerandgentlyslidetheprinted
circuitboard(PCB)fromthehousing.Usecautionwhenremovingthe
PCB.
2. LocatejumpersJW1,JW2andJW3onthePCB.
3. Tochangefrom120VACto240VAC:
a. RemovethejumpersfromJW1&JW2andaddajumpertoJW3.
4. Tochangefrom240VACto120VAC:
a. RemovethejumperfromJW3andaddjumperstoJW1&JW2.
5. GentlyreturnPCBintohousingandreplacebackpanel.
120VACJumperSetting
240VACJumperSetting


RelayInputWiring:Therelayisasinglepole,doublethrowtyperated at
250VoltsAC,12Amps,½Hp.ThetwoterminalNOandNC(normallyopen
andnormallyclosed)willbeusedindifferentapplications.Rememberthat
the"normal"stateiswhentherelaycoilisde‐energizedandtheRedrelay
LEDisOff/de‐energized.



RevA2LC90000711of18
APPLICATIONEXAMPLESStepSeven
LowLevelAlarm:Thegoalistomakesurethattheliquidleveldoesnotfallbelowacertainpoint.Ifitdoes,
analarmissupposedtosound,alertingtheoperatorofalowlevelcondition.
Ifpowerisaccidentallycuttothecontroller,thesensor'sabilitytonotifytheoperatorofalowlevelcondition
couldbelost.Thesystemmustalerttheoperatornotonlytolowliquidlevel,buttocontrollerpowerloss.
Todothis,connectthehotleadofthealarmtotheNCsideoftherelay
terminalofthecontroller.Ifpowerislost,therelaywillbede‐energized,and
thealarmwillsound(ifthereisstillpowertothealarmcircuititself).The
alarmcircuitshouldhaveanon‐interruptiblepowersupplyorsomeother
indicatororbackupalarmtowarnofapowerfailureinthealarmcircuit.
Inthisapplication,thenormalstatusoftherelaysetpointatthebottomof
thetankwillbewet,andtherelaywillbeenergizedholdingthealarmcircuit
open.TherelayLEDwillbeON,soforthisapplication,Invertshouldbesetto
theOFFposition.
HighLevelAlarm:Inthesamemanor,thissystemcanbeusedtosoundanalarmwhenfluidreachesahigh
level,withjustachangeinthelocationoftherelaysetpointandthesetting
oftheInvertswitch.
ThealarmisstillconnectedtotheNCsideoftherelaytoallowforapower
failurealarm.
Therelaysetpointisnormallydry.Inthiscondition,wewanttherelaytobe
energizedsothealarmdoesnotsound:i.e.,theRedrelayLEDshouldbeON
whenalarmconditionoccurs.SoweturnInvertOn.Ifthefluidlevelrisesto
thehighrelaysetpoint,therelayde‐energizes,andthealarmsounds.





12of18LC900007RevA2
APPLICATIONEXAMPLES(cont.)StepSeven
AutomaticFill:Thissystemconsistsofatankwithavalvecontrolledbythe
LC52.Atalowsetpoint,thevalveopens,fillingthetank.Atthehighset
point,thevalvecloses.Partofaproperfail‐safedesignforthisparticular
systemisthatifpowerislosttothecontrollerforanyreason,thevalvefilling
thetankmustclose.Therefore,weconnectthevalvetotheNOsideofthe
relay.Whentherelayisenergized,thevalvewillopenandfillthetank.The
relayindicatorwillcorresponddirectlytotheOpen/Closestatusofthevalve.
NOTE:Ifthedevice’sloadexceedstheratingofthecontroller’srelay,a
stepperrelayofhighercapacitymustbeusedaspartofthesystemdesign.
DeterminingthesettingsofLATCHandINVERT:Thisisthewaythesystemmustoperate:
Whentheliquidlevelisbelowthelowrelaysetpoint,thevalveshouldopen,startingtofillthetank.
Whentheliquidisabovethelowrelaysetpoint,thevalvewillremainopen.
Whentheliquidreachesthehighrelaysetpoint,thevalveshouldclose.
Latch:Inany2‐setpointrelayconfiguration,LATCHmustbeON.
Invert:ReferringtothelogicchartinStepNine,welookforthesettingthatwillde‐energizetherelay(valve
close)whenbothrelaysetpointsarewet.Inthissystem,InvertshouldbeON.
AutomaticEmpty:Inthesamemanner,thecontrollercanbeusedtoautomaticallyemptyatankwithjusta
changetothesettingoftheINVERTswitch:
•ThevalveisstillconnectedtotheNOsideoftherelaytoallowforapowerfailurefail‐safecondition.
•Thenormalstateofthevalveisclosed.Inthisstate,wewanttherelaytobeenergizedatthehigh
relaysetpoint(openingvalvetodraintank).Therelaywillde‐energizeatthelowrelaysetpoint
(closingvalve).
Note:Afail‐safedesignisimportant.Ifthetankisbeingpassivelyfilled,andavalvemustbeusedtoactively
emptyit,apowerfailuretoeitherthecontrollerorthepumpcircuitswillcauseoverflow.





RevA2LC90000713of18
PROGRAMMINGStepEight
OFFSET:Equivalenttothe4mAsetpointonthetransmitter.Enterthevalueyouwouldliketoseewhenthe
LC52receives4mA.
SPAN:Equivalenttothe20mAsetpointonthetransmitter.Enterthevalueyouwouldliketoseewhenthe
LC52receives20mA.
RLY1,RLY2A,RLY2B:SetpointsforRelays.ValuesmustbebetweenOFFSETandSPAN.
Settingvalues:WiththeLatchOff,ignoresteps9and10.RLY2Bwillnotshowduringtheprogramming
sectionwithLatchOff.
1. PresstheSETbuttononce.Immediately,theLEDbargraphwillbegintoflashone
GreenbarnexttoOFFSET.
2. UseUP/DWNbuttonstochangedisplaytothedesiredOFFSETvalue.
3. PresstheSETbuttonagain.Immediately,theLEDbargraphwilljumponeGreenbarto
therightnexttoSPAN.
4. UseUP/DWNbuttonstochangedisplaytothedesiredSPANvalue.
5. PresstheSETbuttonagain.Immediately,theLEDbargraphwilljumponeGreenbarto
therightnexttoRLY1.
6. UseUP/DWNbuttonstochangedisplaytothedesiredRLY1value.
7. PresstheSETbuttonagain.Immediately,theLEDbargraphwilljumponeGreenbarto
therightnexttoRLY2A.
8. UseUP/DWNbuttonstochangedisplaytothedesiredRLY2Avalue.
9. PresstheSETbuttonagain.Immediately,theLEDbargraphwilljumponeGreenbarto
therightnexttoRLY2B.
10. UseUP/DWNbuttonstochangedisplaytothedesiredRLY2Bvalue.
11. PresstheSETbuttonagain.Immediately,theLEDbargraphwillreturnbacktoit
normaloperationofsolidbars.

EasyCalCalibration:TheOffsetandSpanpointsmaybeprogrammeddirectlytoaspecificlevelinthetank.
ThesearetheEasyCal4(Emptytank)andEasyCal20(Fulltank)values.Note:thelevelofthetankmust
physicallybeatitsdesiredlevelwhenusingEasyCal.Ifnot,theEasyCalwillacceptthelevelandthevalueson
thedisplaywillbeincorrect.Usethefactoryresettostartoverifthisoccurs.
TocalibrateEC4,setthetanktothenewOffsetlevel.Press[4]
buttononceand[E]willappearinthedisplay.Press[4]buttonagain
and[C]willappearinthedisplayandEC4isset.


TocalibrateEC20,setthetanktothenewSpanlevel.Press[20]
buttononceand[E]willappearinthedisplay.Press[20]buttonagain
and[C]willappearinthedisplayandEC20isset.
TimeDelay:Setdelayfrom0.15‐60seconds.HoldDelaybuttontoincreasedelayin5secondincrements.


14of18LC900007RevA2
APPENDIXStepNine
ControllerLogic:Pleaseusethefollowingguidetounderstandtheoperationofthecontrollers.
1. PowerLED:MakesuretheGreenpowerLEDisONwhenpowerissuppliedtothecontroller.
2. BarGraphLED:ThebargraphLEDonthecontrollerwillalwaysindicatetheproportional4‐20mAinput
signalgoingtotheLC52controller.i.e.:ifthetankis25%full,then25%ofthebargraphwillbelitGreen.
IfasingleAmberbarappears,thisindicatesaninputcurrentoflessthan4mA.IfasingleRedLEDappears,
thisindicatesaninputcurrentgreaterthan20mA.Usethisfeaturetoconfirmtheinputsignalforthe
LC52.
3. RelayLEDs:ThenormalstateoftherelayiswhentheLEDisOFF.Whentherelaybecomesenergized,the
RedLEDwilllight.Ifpowerisremovedfromthecontroller,therelaywillreturntothenormalstate(LED
OFF).
4. Display:Willindicatetheproportionalleveloftheliquidbaseduponthe4‐20mAinput.IfEasyCalisused
foreithertheemptytanklevel,fulltanklevelorboth,thedisplaywillignorethe4‐20mAinputsignaland
usetheEasyCalsettingasit’semptyand/orfullposition.
RelayLatchLogicTable(relay2only):Therelaycaneitherbeanindependentrelay(highorlowlevelalarm)
orcanbealatchingrelay(automaticfillorempty)withlatchON.WithLatchOFF,therelaywillonlyrespond
totheRLY2Arelaysetpoint.RLY2Bwillbeignored.
WithLatchOFF,thesettingforRLY
2Bwillbeignored.Allchangesto
therelay’sstatewilloccurfrom
theRLY2Arelaysetpoint.
InvertOFFLatchOFF
RLY2ARYL2BRelay
Wet
Dry
NoEffect
NoEffect
ON
OFF

InvertONLatchOFF
RLY2ARYL2BRelay
Wet
Dry
NoEffect
NoEffect
OFF
ON

WithLatchON,therelaywill
actuatewhenthelevelisabove
RLY2AandRLY2B.Therelaywill
notchangeitsconditionifthe
levelisbetweenRLY2AandRLY
2B.Therelaywillreverseit’sstate
whenthelevelisbelowbothRLY
2AandRLY2Brelaysetpoints.
InvertOFFLatchON
RLY2ARYL2BRelay
Wet
Dry
Wet
Dry
Wet
Wet
Dry
Dry
ON
NoChange
NoChange
OFF

InvertONLatchON
RLY2ARYL2BRelay
Wet
Dry
Wet
Dry
Wet
Wet
Dry
Dry
OFF
NoChange
NoChange
ON


FactoryReset:ReturnstheLC52toitsoriginalfactorysetpoints,including
settingtheOFFSETto4mAandtheSPANto20mA.ToperformaFactory
Reset,firstremovepowertothecontroller.Holdboththe4/UPand20/DWN
buttonswhileaddingpowertotheLC52.An“F”forFactoryResetwillappear
inthedisplayindicationtheFactoryResetwasachieved.Ifan“E”forError
appears,theFactoryResetwasnotperformedandyouwillneedtotryagain.
Note:makesurebothbuttonsarepressedwhileaddingpower.The“E”will
appearifonlyoneofthebuttonsispressed.

FactorySettingsforLC52Series
OFFSETSPANRLY1RLY2ARLY2B
4.020.06.018.08.0


RevA2LC90000715of18
APPENDIX(continued)StepNine
LockOutFunction:ThebuttonsonthefaceoftheLC52seriescanbedisengagedorlockedout.Tolockout
thebuttons,pressbothdelaybuttonsandtheDWNbuttonsimultaneously(seebelowleft).Thiswilllockout
allofthebuttonsandpreventanaccidentalchangingofsettings.Tounlockthebuttons,pressbothdelay
buttonsandtheUPbuttonsimultaneously(seebelowright).
LockOutON
(LOCKED)
LockOutOFF
(UNLOCKED)


Troubleshooting
PROBLEMSOLUTION
Displayisnotreading
correctlevel.
FirstchecktheBarGraphtomakesureitisindicating
thecorrectlevel.Ifnot,checktransmitter.Ifso,
performafactoryresetontheLC52andresetvalues.
BarGraphisnotindicating
thecorrectlevel.
Checkthetransmitter’s4‐20mAoutputmakingsureitis
spannedcorrectlyfortheapplication.
BarGraphshowsasingle
Amberbar.
Thisindicatesacurrentinputlessthan4mA.Checkfor
looseoropenwiresbetweenthetransmitterandLC52
andchecktheoutputofthetransmitter.
BarGraphshowsasingle
Redbar.
Thisindicatesacurrentinputgreaterthan20mA.
Removepowerimmediately.Checkforashortinthe
wiringbetweenthetransmitterandLC52orforsome
otherpowersourcethatisaffectingtheinputloop.
RLY2Bdoesnotappear.FlipLatchswitchtoON.
Relayswitchesonlyfrom
RLY2A(ignoresRLY2B).
LatchisturnedOFF.FlipthelatchswitchtoturnON.
LevelreachesalarmON,
butrelayisOFF.
First,checktomakesuretheinputLEDisON.Ifnot,
checkwiringtosensor.
Second,checkstatusofRelayLED.Ifincorrect,flipthe
Invertswitchtochangetherelaystate.
PumporValveissupposed
tostop,butitdoesnot.
First,checktomakesurethebargraphisindicatingthe
correctlevel.Nextchecktherelaysettings.Finally,
checkstatusofRelayLED.Ifincorrect,fliptheInvert
switchtochangetherelaystate.
Controllerispowered,but
nothinghappens.
FirstcheckthePowerLEDtomakesureitisGreen.If
not,checkthewiring,powerandmakesuretheterminal
isseatedcorrectly.
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16of18LC900007RevA2
EXERCISE StepTen
Thefollowingexercisedemonstratesinventory
controlwithautomaticfillingandahighlevelalarm.
Theusablerangeis60inchesofliquid.Thepump
startsfillingat10inchesofliquidandstopsfillingat
50inchesofliquid.Ahighlevelalarmoccursat55
inchesofliquid.
EnterallvaluesintotheLC52ininches.TheOFFSETis
thecorresponding4mAsettingininches.TheSPAN
isthecorresponding20mAsettingininches.RLY2A
andRLY2Bisdedicatedtothefillingofthetank
becauseRELAY2isalatchingrelay.RLY1isdedicated
tothehighlevelalarmbecauseitisasinglesetpoint
relay.Usethefollowingvaluesforprogrammingthe
LC52‐1001.


OFFSET
0.0
SPAN
60.0
RLY1
55.0
RLY2A
50.0
RLY2B
10.0

Thenextexercisedemonstratesthesameinventory
controlwithautomaticfillingandahighlevelalarm.
However,theunitshavebeenchangesfrominchesto
gallons.Withinthetank,1”=50gallonsofliquid. 
Theusablerangeisnow300gallonsofliquid.The
pumpstartsfillingat50gallonsofliquidandstops
fillingat250gallonsofliquid.Ahighlevelalarm
occursat275gallonsofliquid.
EnterallvaluesintotheLC52ingallons.TheOFFSET
isthecorresponding4mAsettingingallons.The
SPANisthecorresponding20mAsettingingallons.
RLY2AandRLY2Bisdedicatedtothefillingofthetank
becauseRELAY2isalatchingrelay.RLY1isdedicated
tothehighlevelalarmbecauseitisasinglesetpoint
relay.Usethefollowingvaluesforprogrammingthe
LC52‐1001.


OFFSET
0
SPAN
300
RLY1
275
RLY2A
250
RLY2B
50

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RevA2LC90000717of18
EXERCISE(continued)StepTen
Thefollowingexercisedemonstratesinventory
controlwithahighandlowlevelalarm.Theusable
rangeisbetween16and56inchesofliquid.Thehigh
levelalarmoccursat50inchesofliquidandthelow
levelalarmoccursat20"ofliquid.
EnterallvaluesintotheLC52ininches.TheOFFSETis
thecorresponding4mAsettingininches.TheSPANis
thecorresponding20mAsettingininches.RLY1is
dedicatedtothehighlevelalarmbecauseitisasingle
setpointrelay.RLY2Aisdedicatedtothelowlevel
alarmbecausethelatchisturnedoffonRelay2.Use
thefollowingvaluesforprogrammingtheLC52‐1001.


OFFSET
16.0
SPAN
56.0
RLY1
50.0
RLY2A
20.0
RLY2B
N/A

Thenextexercisedemonstratesthesameinventory
controlwithahighandlowlevelalarm.However,the
unitshavebeenchangesfrominchestogallons.
Alongthestraightsideofthetank,1”=50gallonsof
liquid.Theusablerangeisnowfrom50to250
gallonsofliquid.Thehighlevelalarmoccursat220
gallonsofliquid.Thelowlevelalarmoccursat70
gallonsofliquid.
EnterallvaluesintotheLC52ingallons.TheOFFSET
isthecorresponding4mAsettingingallons.The
SPANisthecorresponding20mAsettingingallons.
RLY1isdedicatedtothehighlevelalarmbecauseitis
asinglesetpointrelay.RLY2Aisdedicatedtothelow
levelalarmbecausethelatchisturnedoffonRelay2.
UsethefollowingvaluesforprogrammingtheLC52‐
1001.


OFFSET
0
SPAN
250
RLY1
220
RLY2A
70
RLY2B
N/A




18of18LC900007RevA2
WARRANTY,RETURNS&LIMITATIONSStepTen
Warranty
Flowlinewarrantstotheoriginalpurchaserofitsproductsthatsuchproductswillbefreefromdefectsin
materialandworkmanshipundernormaluseandserviceinaccordancewithinstructionsfurnishedbyFlowline
foraperiodoftwoyearsfromthedateofmanufactureofsuchproducts.Flowline'sobligationunderthis
warrantyissolelyandexclusivelylimitedtotherepairorreplacement,atFlowline'soption,oftheproductsor
components,whichFlowline'sexaminationdeterminestoitssatisfactiontobedefectiveinmaterialor
workmanshipwithinthewarrantyperiod.Flowlinemustbenotifiedpursuanttotheinstructionsbelowofany
claimunderthiswarrantywithinthirty(30)daysofanyclaimedlackofconformityoftheproduct.Anyproduct
repairedunderthiswarrantywillbewarrantedonlyfortheremainderoftheoriginalwarrantyperiod.Any
productprovidedasareplacementunderthiswarrantywillbewarrantedforthefulltwoyearsfromthedate
ofmanufacture.
Returns
ProductscannotbereturnedtoFlowlinewithoutFlowline'spriorauthorization.Toreturnaproductthatis
thoughttobedefective,gotowww.flowline.com,andsubmitacustomerreturn(MRA)requestformand
followtheinstructionstherein.Allwarrantyandnon‐warrantyproductreturnstoFlowlinemustbeshipped
prepaidandinsured.Flowlinewillnotberesponsibleforanyproductslostordamagedinshipment.
Limitations
Thiswarrantydoesnotapplytoproductswhich:1)arebeyondthewarrantyperiodorareproductsforwhich
theoriginalpurchaserdoesnotfollowthewarrantyproceduresoutlinedabove;2)havebeensubjectedto
electrical,mechanicalorchemicaldamageduetoimproper,accidentalornegligentuse;3)havebeenmodified
oraltered;4)anyoneotherthanservicepersonnelauthorizedbyFlowlinehaveattemptedtorepair;5)have
beeninvolvedinaccidentsornaturaldisasters;or6)aredamagedduringreturnshipmenttoFlowline.Flowline
reservestherighttounilaterallywaivethiswarrantyanddisposeofanyproductreturnedtoFlowlinewhere:1)
thereisevidenceofapotentiallyhazardousmaterialpresentwiththeproduct;or2)theproducthasremained
unclaimedatFlowlineformorethan30daysafterFlowlinehasdutifullyrequesteddisposition.Thiswarranty
containsthesoleexpresswarrantymadebyFlowlineinconnectionwithitsproducts.ALLIMPLIED
WARRANTIES,INCLUDINGWITHOUTLIMITATION,THEWARRANTIESOFMERCHANTABILITYANDFITNESSFOR
APARTICULARPURPOSE,AREEXPRESSLYDISCLAIMED.Theremediesofrepairorreplacementasstatedabove
aretheexclusiveremediesforthebreachofthiswarranty.INNOEVENTSHALLFLOWLINEBELIABLEFORANY
INCIDENTALORCONSEQUENTIALDAMAGESOFANYKINDINCLUDINGPERSONALORREALPROPERTYORFOR
INJURYTOANYPERSON.THISWARRANTYCONSTITUTESTHEFINAL,COMPLETEANDEXCLUSIVESTATEMENT
OFWARRANTYTERMSANDNOPERSONISAUTHORIZEDTOMAKEANYOTHERWARRANTIESOR
REPRESENTATIONSONBEHALFOFFLOWLINE.Thiswarrantywillbeinterpretedpursuanttothelawsofthe
StateofCalifornia.Ifanyportionofthiswarrantyisheldtobeinvalidorunenforceableforanyreason,such
findingwillnotinvalidateanyotherprovisionofthiswarranty.
Forcompleteproductdocumentation,videotraining,andtechnicalsupport,gotowww.flowline.com.
Forphonesupport,call562‐598‐3015from8amto5pmPST,Mon‐Fri.
(PleasemakesureyouhavethePartandSerialnumberavailable.)
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