Omega LVCN-40 Owner's manual

Brand: Omega

Model: LVCN-40

Type: Owner's manual

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INTRODUCTION/TABLEOFCONTENTS StepOne

The general purpose indicator displays tank level or volume in engineering units with 1‐4 relay status

indicators, and is compatible with any LVCN‐414, LVCN‐210 & LVCN‐318 Series level sensor that's been

configured with LVCN‐414‐SW 6.0 software and updated to V50 firmware or higher. Powered by the LVCN‐

414,LVCN‐210&LVCN‐318Seriessensor,thefieldmountindicatormaybelocatedupto4.5m(15')fromthe

sensor.LVCN‐40Seriesrequiresnoprogramming.Theindicatorrepeatsthemeasuredvalue,applicablerelay

status and set point configuration of the attached sensor. If the level

sensor’s relay set points require

changing,theycanbeeasilymadethroughthefieldindicator.



TableofContents

Specifications:.........................................................................................................................................................4

Dimensions: .........................................................................................................................................................4

 Components:..............................................................................................................................................4

SafetyPrecautions:................................................................................................................................................5

GettingStarted:......................................................................................................................................................6

Wiring: .........................................................................................................................................................7

 AddingaLoopPoweredDisplay:...............................................................................................................7

UnderstandingLVCN

‐414,LVCN‐210&LVCN‐318Seriessensors:.......................................................................8

 LiquidHeightvs.Volume:..........................................................................................................................8

 Linearvs.Non‐Linear:................................................................................................................................9

Example#1(VolumeOutput):.......................................................................................................9

Example#2(CurrentOutput):.....................................................................................................10

 RelaySettings:.........................................................................................................................................11

Installation: .......................................................................................................................................................12

LVCN‐40SeriesGettingAround:..........................................................................................................................13

 Menu:.......................................................................................................................................................13

 ChangingaPumpSetPoint:.....................................................................................................................14

 ChanginganAlarmSetPoint:..................................................................................................................15

Troubleshooting....................................................................................................................................................16

 DisplayDescriptors:..................................................................................................................................16

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 4

SPECIFICATIONS/DIMENSIONS StepTwo

Displaytype: LCD,6‐digitwith4relay

indicators

Displayunits: Engineeringunits,liquidvolume

orheight

Displayoutput:‐9999.9to99999.9

Characterheight: 0.374"(9.5mm)

Decimalpoint: Fixed

Dotindication: Relaystatus

Userinterface: Threebutton

Sensorinput: AnyLVCN‐414,LVCN‐210&

LVCN‐318Seriessensor

Supplyvoltage: Providedbythelevelsensor

Operatingtemp.: F: ‐4°to140°

 C:‐20°to60°

Cabletype: 4‐conductor,#22AWG

Cablelength: 4'(1.2m)

Cablematerial: Polyurethane

Enclosurerating: NEMA4(IP65)whenmounted

Enclosuremat’l: Polycarbonate

Enclosuretype: Panelmount

Buttonmat’l: Siliconrubber

Compliance: CE,RoHS

Dimensions

IncludedComponents

LVCN‐40Seriescomeswitha4’(1.2m)cable,lockingnutandtheManual.

LVCN‐40SeriesFrontView LVCN‐40SeriesSideView

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 5

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 LVCN‐40 Series level indicator from OMEGA ENGINEERING.Please

refertothepartnumberlocatedontheswitchlabeltoverifytheexactmodelconfiguration,whichyouhave

purchased.

User’s Responsibility for Safety:OMEGA ENGINEERING manufactures a broad range of level sensing

technologies.Whileeachofthesesensorsisdesignedtooperateinawidevarietyofapplications,itistheuser’s

responsibilitytoselectasensormodelthatisappropriatefortheapplication,installitproperly,performtestsof

the installed system, and maintain all components. The failure to do so could result in property damage or

seriousinjury.

ProperInstallationandHandling:Onlyprofessionalstaffshouldinstalland/orrepairthisproduct.Install

the level indicator with the includedlocking nut and never over tightenthe indicator within theinstallation.

Alwayscheckforleakspriortosystemstart‐up.

WiringandElectrical:Asupplyvoltageof 12to28 VDCisusedtopowertheLVCN‐40SeriesandtheLVCN‐

414,LVCN‐210&LVCN‐318Seriessensor.El ectrica lwiringofthetransmittershouldbeperformedinaccordance

withal lapplicablenational,state,andlocalcodes.

Material Compatibility:The enclosure is made of Polycarbonate (PC) with the Cable made of

PolyurethaneandtheButtonsmadeofsiliconrubber.Makesurethatthemodel,whichyouhaveselected,is

chemicallycompatiblewiththeapplicationmedia.

Enclosure:  While the level indicator housing is liquid‐resistant the LVCN‐40 Series is not designed to be

operationalwhenimmersed.Itshouldbemountedinsuchawaythattheenclosureandlevelindicatordonot

comeintocontactwiththeapplicationmediaundernormaloperationalconditions.

Makea Fail‐SafeSystem:Designafail‐safesystemthataccommodatesthepossibilityofLVCN‐414,LVCN‐

210&LVCN‐318Series/LVCN‐40Seriesand/orpowerfailure.OMEGAENGINEERINGrecommendstheuseof

redundantbackupsystemsandalarmsinadditiontotheprimarysystem.

Flammable, Explosive or Hazardous  Applications:LVCN‐40 Series should not be  used within classified

hazardousenvironments.

Safety

Installationshouldbedonebyproperlytrainedstaff

Supplyvoltageshouldneverexceedamaximumof28VDC

Makesurethesensorischemicallycompatiblewithyourapplication

Designafail‐safesystemthataccommodatesthepossibilityofsensorand/orpowerfailure

Thissensorshouldnotbeusedinclassifiedhazardousenvironments

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 6

GETTINGSTARTED StepFour

LVCN‐40Seriesdoesnotrequireanyconfiguration.LVCN‐40Serieslevelindicatorwillautomaticallyreadthe

configuration of the attached LVCN‐414, LVCN‐210 & LVCN‐318 Series sensor and display the level per the

sensor’sconfiguration.ThesensordoesrequireconfigurationwiththeLVCN‐414‐SW6.0software(especially

if any relays are to be used).For a copy of the LVCN‐414‐SW 6.0 software, please go to

http://www.Omega.com/ftp

, click on the  Flow, Level, pH, Environmental, and Pressure Section, select

ProductsandthenclickontheLVCN414folder.BeforeattachingLVCN‐40Seriestoanysensor,configure the

LVCN‐414,LVCN‐210&LVCN‐318SeriessensortoLVCN‐414‐SW6.0softwareviatheFob.Oncethesensor

is

configured,removetheFobandattachtheLVCN‐40Series.

Note:Please referto LVCN‐414, LVCN‐210 & LVCN‐318 Seriesmanual for  the wiring, configuration with the

LVCN‐414‐SW6.0softwareandinstallationofthesensor.





 7

WIRING StepFive

WiringLVCN‐40SeriestoanyLVCN‐414,LVCN‐210&LVCN‐318SeriesSensor:LVCN‐40Seriesandassociated

levelsensorrequirea12to28VDCpowersupplytooperate.ThemaximumcabledistancebetweenLVCN‐40

Seriesandthesensoris15’(4.5m).FollowthebelowstepstowireLVCN‐40serieswiththesensor:



Sensor



LVCN‐40Series

WiringidenticalforallseriesofLVCN‐414,LVCN‐210&LVCN‐318SeriesSensors.

UseonlytheRed,Black,GreenandWhitewires.

1. ConnecttheRedandBlackwiresofbothLVCN‐40Seriesandthesensortothe12‐28VDCpowersupply.

2. ConnecttheGreenandWhitewiresofLVCN‐40SeriestothecorrespondingGreenandWhitewiresofthe

sensor.

3. IsolatetheGreenandWhitewiresfromactivepowertopreventashortoftheconfigurationcircuit.

AddingaLoopPoweredDisplay



GeneralSafety

 Wherepersonalsafetyorsignificantpropertydamagecanoccurduetoaspill,theapplicationmust

havearedundantbackupsafetysysteminstalled.

 Wiringshouldalwaysbedonebyalicensedelectrician.

 Supplyvoltageshouldneverexceed28VDC.

 Protectthesensorfromelectricalspikesbyisolatingthepower.

 Designafail‐safesystemforpossibleindicatorand/orpowerfailure.

 NeverusethesensorinenvironmentsclassifiedasHazardous.

 8

UNDERSTANDINGLVCN‐40SERIES StepSix

LevelHeightvs.Volume:ThelatestversionofLVCN‐414‐SW6.0softwarehasanewfeaturewhichallowsthe

sensor to beconfigured to readeitherthe height of the liquid or the volume of the liquid.This selection is

made under the Sensor Output Units selection of either Volume (volume of liquid) or Distance (height of

liquid).SeethechartbelowfortheengineeringunitoptionsavailableforbothDistanceandVolume.



UnitsofMeasurement

Distance Volume

Inches

Cm

Feet

Meters

Gallons

Liters



Thereare6differenttankshapesthatyoucanselectwithLVCN‐414‐SW6.0Software.

VerticalCylinderTank



VerticalCylinderTank

withConeBottom



RectangularTank



HorizontalCylinderTank

withEndCaps



HorizontalCylinderTank

withSphericalEndCaps



SphericalTank





 9

UNDERSTANDINGLVCN‐40SERIES StepSix

Linearvs.Non‐Linear:Twooftheshapes(VerticalCylinderTankandRectangularTank)willalwaysprovidea

linearoutput, regardlessof selectingDistance orVolume.Theremainingfourshapes(VerticalCylinderTank

withConeBottom,HorizontalCylinderTankwithEndCaps,HorizontalCylinderTankwithSphericalEndCaps

andSphericalTank)willhavealinearoutputwhenDistanceisselected,butwillhaveanon‐linearoutputwhen

volumeisselected.



VerticalCylindricalTank



In the above illustration, 10” of liquid will always

beequalto100gallonsofliquid(1”=10gallons).

HorizontalCylinderTankwithEnd

Caps



In the above illustration, 10” of liquid does not

equal 100 gallons.The 10” at the bottom

representsariseof62.8gallonswherethechange

between 10” and 20” represents an increase of

109.6gallons.

Whenvolumeisselected,the4‐20mAoutputfromthesensorwill beproportionaltothevolumeofthetank,

nottheheightofthetank.Thismeansthatthecurrentoutputwilltrackthevolume ofthetank(ingallonsor

liters) within a non‐linear tank (Vertical Cylinder

 Tank with Cone Bottom, Horizontal Cylinder Tank with End

Caps,HorizontalCylinderTankwithSphericalEndCapsorSphericalTank).

Whenconnectingthe4‐20mAoutputtoadisplay,thecurrentsignalwillfollowthevolumeofthetank.The

displaywillalsoreflectthevolumeofthetank

andnottheheightoftheliquid.

Example#1(VolumeOutput):Intheillustrationsabove,@20”ofliquid,thedisplaywillshow200.0gallonsin

theVerticalCylindrical Tank.However, intheHorizontal CylinderTankwith End Caps,thesamelevel of20”

wouldshow172.4gallons.





 10

UNDERSTANDINGLVCN‐40SERIES StepSix

Example#2 (CurrentOutput):intheillustrations below, the 4mAsignalis set at0”(0.0 gallons) and the20

mAsignalissetto60”(600.0gallons).IntheVerticalCylindricalTank,40”ofliquidwilloutputacurrentsignal

of 14.67mA.However, in the Horizontal Cylindrical Tank with End Caps, 40” of liquid will output a current

signal of 15.41mA.A simple loop display set with 4mA = 0 gallons and 20 mA =  600 gallons will show two

differentvolumesbaseduponthetankshapeconfiguration.VerticalCylindricalTankwillshow400.0gallons

whileHorizontalCylindricalTankwith

EndCapswillshow428.0gallons.

VerticalCylindricalTank



 10” of liquid willalwaysbeequal to 100gallons

ofliquid(1”=10gallons).

HorizontalCylinderTankwithEndCaps



 1” of liquid does not equal 10 gallons.The 10”

at the bottom represents a rise of

 62.8 gallons

where the change between 10” and 20”

representsanincreaseof109.6gallons.





 11

UNDERSTANDINGLVCN‐40SERIES StepSix

Relay Settings:LVCN‐40 Series not only displays the level reading of the LVCN‐414, LVCN‐210 & LVCN‐318

Seriessensor(HeightorVolume),butLVCN‐40Seriesalsoallowsyoutoadjustthe settingsforrelays.LVCN‐40

SerieswillnotallowchangestoSensorHeightorFill‐Height,justtherelaysettings.

The sensor configured to read inches of liquid plus 4 

highalarmrelays.



The sensor configured to read inches of liquid plus

duplexrelaysandhighandlowalarmrelays.



Thesensorconfiguredtoread gallonsofliquidplus 2

highalarmand2lowrelays.



Thesensorconfiguredtoreadgallons ofliquidplusan

autoemptyrelaysandhighandlowalarmrelays.





 12

INSTALLATION StepSeven

LVCN‐40Seriesisdesignedfortypicalpanelmountinstallations,eitherlocatedwithinaninstrumentpanelor

throughthewallofaNEMAboxenclosure.

Panel Mount: The maximum cable distance between LVCN‐40 Series and LVCN‐414, LVCN‐210 & LVCN‐318

Seriessensoris15’(4.5m).Followthebelow

stepstoinstalltheindicatorinapanelorNEMAboxenclosure

locatednearthesensor:

1. Drill(1)large0.75”(19.1mm)diameterholeinthe

panelforthecableandnipple.

2. Drill (1) small 0.25” (6.4mm) diameter hole 0.83”

(21.1mm) below the large hole that will prevent

the

installedindicatorfromrotatingoffcenter.

3. Runtheindicatorcablethroughthelargetophole

andlockingnut(ontherearsideofthepanel).

4. Properly align the indicator with the flat gasket

and holes on the panel. Then press the indicator

inplaceagainstthepanel.

5. Tighten thelockingnutdownoverthenippleand

routethecablefortermination.





 13

GETTINGAROUNDLVCN‐40SERIES StepEight

LVCN‐40Seriesfeaturesa6‐digitdisplaywithrelayindicatorsandathree‐buttonuserinterface.Theindicator

displays the measured value and relay statusof the connected sensor (if the sensor has relays and they are 

configuredforuse).

 Relay 1‐4 – Indicates when the sensor’s relay is

energized.Note: Not all LVCN‐414 series sensor

modelshaverelays.

o If the sensor does not have any relays, then

theindicatorswillremainoff.

 6‐digit Display – Shows the liquid level in height

(inches, cm, feet or meters) or the volume of

liquid(gallonsorliters).

o Theselectionofheightvs.volumeissetinthe

LVCN‐414‐SW6.0software.

 UpButton–Usedtoincreaseasetpointvalue.

 Select Button – Used to enter the Menu and

acceptvalues.

 Down Button – Used to decrease a set point

value.



Note:To increase the  scrolling speed of the display,

hold down the  SELECT button while simultaneously

pressingtheUPorDOWNbutton.

Entering the MENU:If desired, users can change the sensor’s relay ALARM, VALVE or PUMP ON‐OFF set

pointsusingLVCN‐40Series.ToenterthemenuLVCN‐40SeriesMENUfunctions,pressandholdtheSELECT

button for 5 seconds.The MENU will then scroll between the configured PUMP, ALAMRS and RUN modes.

Note:IftherelaysareconfiguredforPUMPSandALARMS,thenbothwillappearinthemenu.Iftherelaysare

configuredforAlarmsonly,thenPUMPwillnotappear.IftherelaysareconfiguredforPUMPSonly(alsofor

valves),thenALARMSwillnotappear.



 Tochangeapumpsetpointvalue,pressSELECTwhenPUMPappears.

 TochangeanAlarmsetpointvalue,pressSELECTwhenALARMSappear.

 Toexitthemenuandreturntorunmode,pressSELECTwhenRUNappears.



 14

GETTINGAROUNDLVCN‐40SERIES StepEight

ChangingaPumpSetPoint:Sensors(LVCN‐414,LVCN‐210&LVCN‐318Series)withrelayshave(1‐4)channels

activeontheLVCN‐40Series.IfafteraccessingtheMENU,PUMPappearsinthedisplay,thenatleast(1)relay

isconfiguredforpumporvalvecontrol.Simplexpumpcontrolhas(1)ONand(1)OFFsetting.Duplexpump

control(2‐pumps)hasathirdadditionalLAGsetting.Note:Priortomakinganychanges,werecommendthat

you write down all existing set point values.The example below highlights a duplex pump system in an

automatic empty or automatic fill operation with (1) LAG, (1) ON and (1) OFF set point.Use the following

stepstochangeyoursimplexorduplexpumpcontrolsettings.

AutomaticEmptyOperation



AutomaticFillOperation



StepstoChangePumpSet Points

1. HoldSELECTfor5secondstoentertheMENU.

2. PressSELECTwhenPUMPappears.

3. PressSELECTwhenthesetpoint(ON,OFF,LAG)youwantto

changeappears.

4. PresstheUPandDOWNbuttonstoincreaseordecrease the 

setpointtothedesiredvalue.Toscrollfaster,holdSELECT

whilepressingUPorDOWN.

5. Toenterthesetpoint,holdSELECTfor2seconds.

6. Tochangeanothersetpoint,pressSELECTwhentheset

pointappears.

7. ToexittheMENU,pressSELECTwhenRUNappears.

TechTips

 Neverplacearelaysetpoint(ON,OFF,LAG)attheliquidemptyorliquidfullposition.Youshould

have

atleastsomedistanceorvolumebufferseparatingthem.Forexample,ina500gallontank,therelay

setpointscouldbeplacedat≥10gallonsor≤490gallons.



 

 15

GETTINGAROUNDLVCN‐40SERIES StepEight

Changing an Alarm Set Point:Sensors (LVCN‐414, LVCN‐210 & LVCN‐318 Series) with relays have (1‐4)

channelsactiveontheLVCN‐40Series.Ifafteraccessingthe MENU,ALARMSappearsinthedisplay,thenat

least(1)relayisconfiguredasanalarm.TheAlarmsettingsmaybeinanycombinationofLOWand/orHIGH

alarms(4‐HIGH,1‐LOW&3‐HIGH,2‐LOW&2‐HIGH,etc.).Note:Priortomakinganychanges,werecommend

that you write down  all existing set point values.The example below highlights a 2‐LOW and 2‐HIGH alarm

operationwith(4)setpoints.Usethefollowingstepstochangeyouralarmsettings.



StepstochangeAlarmsettings:

1. HoldSELECTfor5secondstoentertheMENU.

2. PressSELECTwhenALARMSappears.

3. PressSELECTwhenthesetpoint(HIGH2,HIGH1,LOW1,LOW2)youwanttochangeappears.

4. Press the UP and DOWN buttons to increase or decrease the set point to the desired value.To scroll

faster,holdSELECTwhilepressingUPorDOWN.

5. Toenterthesetpoint,holdSELECTfor2seconds.

6. Tochangeanothersetpoint,pressSELECTwhenthesetpointappears.

7. ToexittheMENU,pressSELECTwhenRUNappears.

Hints:

 Never place a relays set point (High 1, Low 1) at the liquid empty or liquid full position.You should

haveatleastsomedistanceorvolumebufferseparatingthem.Forexample,ina500gallontank,the

relaysetpointscouldbeplacedat≥10gallonsor≤490gallons.





 16

TROUBLESHOOTING StepNine

DisplayDescriptors:Thefollowingarethedisplay’soperationaldescriptors,meaningandcorrectiveaction:

WARMUP

WARMUPisseenwhenpowerisfirstappliedtothesensorandLVCN‐40Series.WARMUP

indicatesthatthedisplayiswaitingforthesensortoacquireandsendavalidlevelreading.

MENU Indicatesthemenuforconfigurationofrelaysetpoints.

PUMP PUMPistheidentifierfortherelaysetpointsaffectingPumporValveoperations.

 OFF OFFistherelaysetpointthatturnsOFFthepump.

 ON ONistherelaysetpointthatturnsONthepump.

 LAG LAGisthesetpointthatturnsONthelagpump.

ALARM AlarmistheidentifierfortherelaysetpointsaffectingAlarmoperations.

 HIGH# HIGH#istherelaysetpointthatenergizesahighalarmrelay.

 LOW# LOW#istherelaysetpointthatenergizesalowalarmrelay.

CHECKWIRES

NotAllfourwiresareproperlyconnectedtothesensor.Checkthewiringbetweenthe

LVCN‐40Seriesandthelevelsensor.

UPDATEFWREV

Theattachedsensorisnotrunningaversionofthefirmware(50.0orhigher)thatis

compatiblewithLVCN‐40Series.ConnecttheLVCN‐414,LVCN‐210orLVCN‐318Seriesto

theLVCN‐414‐SW6.0softwareandupdatethefirmware.





 17



 18





 19

 20



Omega LVCN-40 Owner's manual

Omega LVCN-40 Owner's manual

Omega LVCN-40 Owner's manual

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