Level indicator - MECON

MENKARLevel indicator

OPERATING INSTRUCTIONS

© MECON GmbH BA / MENKAR / EN / 19-10

2 © MECON GmbH BA / MENKAR / EN / 19-10

Content

1 SAFETYINSTRUCTIONS..............................................................................................41.1 Intended use .......................................................................................................................41.2 Certifications ......................................................................................................................51.3 Manufacturer’ssafetyinstructions ...............................................................................5

2 INSTRUMENTDESCRIPTION ......................................................................................62.1 Scopeofdelivery ...............................................................................................................62.2 Nameplate ...........................................................................................................................7

3 INSTALLATIONANDPRINCIPLEOFOPERATION ....................................................83.1 Installationnotes ...............................................................................................................83.2 Installationconditions ......................................................................................................83.3 Installationinstructions ...................................................................................................93.4 Principleofoperation .......................................................................................................93.5 Displayoftheactuallevel ................................................................................................103.6 Availablefloats ...................................................................................................................103.7 Changeofprocessconditions ........................................................................................103.8 Configuration ......................................................................................................................11

4 START-UP ......................................................................................................................11

5 TECHNICALDATA .........................................................................................................125.1 Max.pressure16bar,150lbs ..........................................................................................125.2 Max.pressure40bar,300lbs .........................................................................................145.3 Max.pressure250bar,1500lbs .....................................................................................155.4 Withoutsurgepipe(surfacetankmounting) ...............................................................165.5 WithsurgepipeØ54or60.3(surfacetankmounting) ..............................................175.6 With3guiderodsØ76orØ104(surfacetankmounting) ........................................185.7 WithsurgepipeØ76.1or88.9(surfacetankmounting) ............................................19

6 CONTACTORS ...............................................................................................................206.1 Generaluselevelswitch ..................................................................................................216.2 Intrinsicallysafelevelswitches(Exi) ............................................................................226.3 Pressure-safelevelswitches ..........................................................................................236.4 Reedchainforcontinuousdisplay.................................................................................24

3© MECON GmbH BA / MENKAR / EN / 19-10

IMPRINT

Allrightsreserved.AnyreproductionorusagewithoutthewrittenauthorisationofMECONGmbH-evenpartialcontent-isstrictlyprohibited.Subjecttochangewithoutnotice.

Copyright2019MECONGmbH-Röntgenstr.105-50169Kerpen-Germany

7 SERVICE .........................................................................................................................267.1 Storage ................................................................................................................................267.2 Maintenance .......................................................................................................................267.3 Returningtheinstrumenttothemanufacturer ..........................................................267.4 Disposal ...............................................................................................................................27

8 FAULTREPORTING .......................................................................................................27


SAFETY INSTRUCTIONS

1 SAFETYINSTRUCTIONS

1.1 Intended use

MENKARserieslevelindicatorsaresuitableforcontinuousmeasurementandmonitoringofthelevelofaliquidinopenorclosedcontainersasrequired.

Theliquidlevelinthecontainertobemonitoredistransmittedbyafloatina1:1ratioasananaloguevalue.Themeasurementisindependentoftheoperatingpressure.Theinstru-mentsarenotedfortheir robustconstruction,trouble-freeusageandgoodreadability,evenfromfurtheraway.

Variousmagneticallyoperatedcontactunitsforcontrolandregulationprocesses(acous-ticandopticalsignals,motorandvalvecontrollersorsimilar)areavailableasaccessories.Apartfromrequiringacertainminimumdistance,thecontactscanbefittedinanyorderandinanynumber.

Therobustdesignmeansitcanevenbeusedintoughconditions.Varioustypesofprocessconnectionsandfloatsmeetthediverseconditionsfoundacrossindustry.

Special features: » Universalapplicationsforalmostalltypesofliquids » Simple,robustconstructionwithmagneticdatatransmission » Strong,magneticcouplingsystemwithoutanymechanicaltransmission elements

» Goodreadability,evenfromadistance » Canalsobesuppliedforuseunderhighpressuresandtemperatures » Numberofcontactsandarrangementofthecontactisdefinedbytheuser;andonlylimitedbythecontacthousingdimensions

» Nohydraulicconnectionbetweenindicatorandmedium » Easytoinstall » Highmeasurement/displayedrange.Alsoavailableinasplitdesignabove5000 mm. » Alsoavailablewithamagneticflapperdisplay,


SAFETY INSTRUCTIONS

1.2 Certifications

CEmarking

ByaffixingtheCEmark,themanufacturercertifiesthattheMENKARlevelindicator,whereapplicable,complieswiththelegalrequirementsofthefollowingEUdirective:

» PressureEquipmentDirective2014/68/EU » ThepermittedmediaareGroup1gasesandliquids » ClassIII(ClassificationundertheconditionPS.V<1000(Article4.1.1a)

1.3 Manufacturer’ssafetyinstructions DisclaimerThemanufacturerisnotliablefordamagesofanykindcausedbytheuseoftheinstru-ment,including,butnotlimitedto,direct,indirect,incidental,punitiveandconsequentialdamages.

Awarrantyappliestoeveryproductpurchasedfromthemanufacturer,accordingtotherelevantproductdocumentationandourvalidtermsandconditions.Themanufacturerreservestherighttorevisethecontentofthedocuments, includingthisdisclaimer,withoutnotice,andisnotliableinanywayforanypossibleconsequencesofsuchchanges.

ProductliabilityandwarrantyTheresponsibilityforensuringthatthemeasuringinstrumentissuitablefortheparticu-larapplicationrestssolelywiththeoperator.MECONGmbHassumesno liabilityfortheconsequencesofmisuse,modificationsorrepairsthatwerecarriedoutbythecustomerwithoutpriorconsultation.

Incaseofacomplaint thedisputedelementsmustbecleanedofanyhazardoussub-stancesandbereturnedtothemanufacturer,unlessotherwiseagreed.

GeneralinformationTopreventinjurytotheuserordamagetotheinstrument,itisnecessarythatyoureadtheseoperatinginstructionscarefullybeforestartingtouseit.

Thishandbookis intendedtocoverthecorrect installation,operationandmaintenanceof the instrument.Specialdesignsfor special applicationsandcustommodelsarenotcoveredbythisdocumentation.

0035


INSTRUMENT DESCRIPTION

2 INSTRUMENTDESCRIPTION

2.1 Scopeofdelivery

MENKARwithlocalindicator,capanddrainplugFloatValve(vent/drain)-optionalOperatinginstructionsOptional:Magneticflapper(mounted),contacts,reedchain

Fig. 1 Scope of delivery


INSTRUMENT DESCRIPTION

2.2 Nameplate

Type DevicenameDrawingNo. DrawingnumberSerialNo. SerialnumberConnection ProcessconnectionCtoC Nozzledistance(centretocentre)Tsmin./max. Temperaturerange(min./max.)ofmediumin°Cpmin./max. Pressure(min/max)pmax.atTsmax. MaximumpermissibleoperatingpressureatTsmax.Material MaterialusedforthewettedpartsSpecificdensity RelativedensityCE CEmarking,classificationaccordingtothe

PressureEquipmentDirectiveTAGNo. TAGnumber


INSTALLATION AND PRINCIPLE OF OPERATION

3 INSTALLATIONANDPRINCIPLEOFOPERATION

3.1 Installation notes

Information!

All instruments are carefully checked for proper functionality before shipment.

Immediately on receipt, check the outer packing carefully for damage or signs of improper handling. Report any damage to the carrier and your local sales staff. In such cases, a description of the damage, the type and the serial number of the instrument should be given.

Unpack the instrument carefully to avoid damage.

Check the delivery for completeness on the basis of the delivery note and the match between the valve and the float.

Check the nameplate to ensure that the delivered level indicator meets with your order.

3.2 Installation conditions

Thefollowingpointsmustbeobservedwheninstallingtheinstrument.

» TheMENKARlevelindicatormustbemountedverticallyonthetank. » Itmustbeensuredthatanymagneticfieldsgeneratedbyotherinstrumentsdonotaffectthemeasurements.

» Selectscrewsandgaskets(tobeprovidedbythecustomer)thatmeetthepressurespecificationsoftheconnectionflangeandtheoperatingpressure.

» Theprocessconnections(flanges)mustfit,i.e.theymustbecentredandparallelandproperlyboltedontopreventanyunnecessarymechanicalstressbeingappliedtotheinstallation.

» Thetankmustbefreeofanycontamination.Theuseofshut-offelementsisrecom-mendede.g.taps,valves,etc.,installedbetweentankandlevelindicator,sothatthelevelindicatorcanbecleanedindependentlyofthetank.Thedrainplug(ifordered)inthebottomflangeshouldalsobereplacedwithadraintapfittedwithadrainpipe.



Thefollowingpointsshouldbenotedwheninstallingtheinstrumentsinthepipeline:

» Removethetransportlockfromthevalve. » Beforeinstallation,checkthatthefloatinthevalvecanmovefreelywithoutjamming.

3.3 Installation instructions » Theeffectivepressureoftheinstallation(themaximumpressureallowedbythepres-surereliefvalve)mustneverexceedthemaximumallowablepressurePSindicatedonthenameplate.

» Theusermustensurethatthematerials(guidetube,floats,seals,etc.)thatcomeintocontactwiththefluidarecompatiblewiththisfluidandmeettheageingcharacter-isticsofthefluidandthemeasurementenvironment.Theappropriateinformationiseithergiveninthemanualorlistedinthecontractunderownspecifications.

» Theexternalpressure(Pext)mustequaltheatmosphericpressure(Patm).

3.4 Principle of operation

TheMENKARlevelindicatorsoperatewithasystemofcommunicatingtubesorthefloatprinciple:

Themediumentersfromthetankthroughthelowerconnectingtubeinthestandpipe.Thefloatlocatedinthestandpipethenfloatsintheliquid,itsheight(seeFig.1)correspondingdirectlytothelevelinthetank.

Eachmovementofthefloat(whenthelevelchanges)istransmittedtothemagneticflap-persbyamagnetinsertedinthefloat(rotationfromwhitetored)-othercoloursonre-quest-theredsideindicatingthelevel.

Asanoption,contactdevicesareavailablethatarealsoactu-atedbythefloat.

Themagnetic transmissionsystemworkswithoutcontact inallcases.

Fig. 1: Principle of operation



3.5 Displayoftheactuallevel

Thefloatisequippedwitharingsystemmadeofpermanentmagnetsinordertotransmittheliquidlevel.

Fordesignreasons,theminimumlevelinthemeasuringtubeisindicatedbytheaxisofthelowerlateralconnectingflange,i.e.thezeropointformsthecentrelineofthelowerconnectingflange.

Intheeventofamajorchangeintheproductdensityspecifiedintheorder,orwhenin-stallinganotherfloat,thescaleontheMENKARmayneedtobeadjustedtoensureacor-rectreading.Insuchacase,pleasecontactMECONGmbH.

3.6 Availablefloats

Allmagneticlevelindicatorsareequippedwithafloat.Asstandard,thefloatissuppliedinstainlesssteel,butcanalsobeorderedintitanium,Hastelloy,PVC-C,PVC-U,PPorPVDF.Thefloatmusthavesufficientbuoyancy,sotheprocessconditionsshouldbeconsideredwhenmakingtheselection.

Thefollowinginformationisrequiredforchoosingtherightfloat: » Medium » Density » Operatingpressure » Operatingtemperature

Thelowestselectabledensityis380kg/m³,dependingontheprocessconditions.Inthecaseofaggressiveliquids,thefloatcanalsobeorderedwithalining.Examplesinclude:E-CTFE,PFAandETFE.

3.7 Changeofprocessconditions

IftheuserwishestousetheMENKARtomeasureanotherproduct,thefollowingpointsshouldbeconsidered:

» ContactMECONGmbHforinformationaboutthecompatibilityofinstrumentsandproducts,especiallyiftheinstrumentistobeusedinhazardousareas.

» Whereapplicable,ensurethattherequirementsofthePressureEquipmentDirective2014/68/EUareadheredto.

» Theimmersiondepthofthefloatincreaseswithdecreasingdensityoftheproduct.Thisdepthalsodependsonthemodeloffloatandthematerialused(stainlesssteelortitanium).


START-UP

3.8 ConfigurationMENKARlevelindicatorsaremanufacturedinlengthsofupto5,000mm,dependingonthetype,andwithasplitdesignforlongerlengthsinordertofacilitatetransport.Thecon-nectionismadeusingflanges.Thefollowingpointsmustbeobservedtakingaccountoftheparticularoperatingdataandlocalconditions: » Typeoffitting » Typeanddesignofinstrument » Length/measuringrange » Scaletype(%,volumeorheightunits):Forscalesinvolumeunits,theusermustprovideanoutflowtable.Thescalecanalsoberetrofittedandinstalledbytheuser.Forrectangularandcylindricalcontainerswithflatorcurvedbases,inahorizontalorverticalposition,thescalecanbecalculatedatthefactoryinunitsofvolume(atreimbursementofcost).Forthis,thegeometricdimensionsofthecontainermustbespecified.

» Gatevalve:Itisadvisabletoprovideagatevalveintheconnectingpipes,sothatthelevelindicatorcanbecleaned,removedorre-installed.

Additionaldata: » Typeofmedium(withdensity) » Operatingpressureandoperatingtemperature » Nominaldiameteranddesignoftheconnectionflanges » Nominalwidthanddesignoffrontandblankflanges,ifdifferentfromstandard » Sealingmaterial.

4 START-UP

Theoperatinginstructionsaretobereadintheirentiretybeforeinstallationandcommis-sioning.Installationandrepairmayonlybecarriedoutbysuitablepersonnel!Downloadingthisdocumentfromthehomepageofwww.mecon.deandprintingitoutispermittedwhenitisusedwithoneofourlevelindicators.Thismanualmaynotberepro-ducedor transmittedbyphotocopyingor any other recording techniques or any othermeanswithoutthepriorwrittenconsentofMECONGmbH.

Great carehasbeen taken in thedevelopment andpreparationof thismanual.Never-theless,mistakescannotbefullyeliminated.Thecompanyandtheauthorarenotabletoacceptanylegalorotherliabilityforincorrectfunctionalityorinformationandanyconse-quencesthatmayarise.

MECONGmbHoffersnowarranty,expressorimplied,astoitssuitabilityforanypurposeotherthanthatdescribedinthismanual.


START-UP

5 TECHNICALDATA

5.1 Max.pressure16bar,150lbs

Wereservetherighttochangetechnicaldataasaresultoftechnologicalprogress.Thelatestinformationonthisproductcanbefoundatwww.mecon.Youcanalsocontactoursalesdepartmentviae-mailatinfo@mecon.de.

MENKAR LMENKAR D


TECHNICAL DATA

Type D-16 / D 150 - L-16 / L-150

Material Stainlesssteel1.4404(316L),stainlesssteel1.4301(304),PP,PVC,

PVDF,PE,Monel,Titanium,Hastelloy,6Mo

Pipe 60.3x2mmor60.3x2.77mm

Pressure Max.16bar/150lbs

Temperature Max.+400°C

Measuringlength Upto5500mmin1piece,longerinseveralparts

Indicator rail Polycarbonate(maxtemp.+105°C,temporary+120°C)

Process connection DINDN15–DN32/PN16,B=75mm

ANSI½”–1¼”150#RF(RTJ),B=85mm

Weldingend/thread(external/internalthread),W=70mm

DN40–DN50andANSI1.½”–2”on1”pipe,B=130mm

Drain ¼",½"or¾"plugorvalveBSP/NPTorflange

Sideentryasabove

AdditionalflangeaccordingtoDINorANSI

Without

Sealingmaterial PTFE,aramides,graphite,spirallywound

Upper side ¼",½"or¾"plugorvalveBSP/NPTorflange

FlangeDN50/PN16orANSI2"150#RF

FlangeDN25/PN16(likedrain)

Without

Float Densitymin.380kg/m³

Pathlength Densitymin.920kg/m³A=210mm(*)

Densitymin.830kg/m³A=245mm(*)



Additionalreinforcement SpigotspacingCtoC>3metresforoffshore

SpigotdistanceCtoC>4metresforonshore

MENKAR Stainlesssteel

Marking NameplateaccordingtostandarddesigninVA

PEDmarkinguptoCategoryIIIstandard

Certifications MaterialcertificateEN102043.1+drawing

Pressure test

NACE MR 01.75 / ISO 15156

WPS/PQRstandardmaterial

Special Insulation,steamjacket,spring,electricheater

(*) Special length (also shorter) available on request.


TECHNICAL DATA

Type D-40/D-300,L-40/L-300

Material Stainlesssteel1.4404(316L),stainlesssteel1.4301(304),PP,PVC,

PVDF,PE,Monel,Titanium,Hastelloy,6Mo

Pipe 60.3x2mmor60.3x2.77mm

Pressure 40bar/300lbs




AluminiumwithstainlesssteelVA4flaps

CompletelystainlesssteelVA4

Process connec-

tionDINDN15–DN32/PN40,B=75mm

ANSI½”–1¼”300#RF(RTJ),B=85mm


DN40–DN50andANSI1.½”–2”on1”pipe,B=130mm

Drain ¼",½"or¾"plugorvalveBSP/NPTorflange

Sideentryasabove


Without


Upper side ¼",½"or¾"plugorvalveBSP/NPTorflange

Sideentryasabove


Without


Pathlength Densitymin.920kg/m³A=210mm(*)




Additional rein-

forcementSpigotspacingCtoC>3metresforoffshore






Pressure test

NACE MR 01.75 / ISO 15156


Special Insulation,steamjacket,spring,electricheater

(*) Special length (also shorter) available on request.


MENKAR L

MENKAR D


TECHNICAL DATA

Type D-64 / D-100 / D-160 / D-600 / D-900 / D-1500 / D-2500

Material Stainlesssteel1.4404(316L)/1.4571(316Ti)

Pipe 60.3x2.77mm/60.3x3.91mm

Pressure Max.250bar




WithstainlesssteelVA4flaps


Process connec-

tionDINDN15–DN32/PN64–PN160,B=80mm

ANSI½”–1¼”600#–2500#RF–RTJ,B=85mm


DN40–DN50andANSI1.½”–2”on1”pipe,W=130mm

Drain ¼”,½”or¾”plugsBSPorNPT

¼",½"or¾"valve


Without


Upperflange

(possiblyventi-

lation)

¼",½"or¾"plugorvalveBSP/NPTorflange

¼",½"or¾"valve


Without


Pathlength A=dependingonpressureandtemperature

Additional

reinforcementSpigotspacingCtoC>3metresforoffshore


MENKAR High&lowinstainlesssteel




Pressure test

NACE MR 01.75 / ISO 15156


Special Insulation,spring,electricheater


MENKAR D


TECHNICAL DATA

Type F-00A / F-00B

Material Stainlesssteel1.4404(316L),othersonrequest

Pipe 60.3x2mm(uppertank)

Surgepipe without

Pressure Max.60bar(dependingontype)


Measuringlength Max.5500mm




Process connec-

tionDINDN50–DN150/PN40,B

ANSI 2” – 6” 150# RF

ANSI 2” – 6” 300# RF

ANSI 2” – 6” 600# RF

Upper side ¼",½"or¾"plugorvalveBSP/NPT,flange

FloatF-00A FloatOD52mm

Densitymin.480kg/m³

Densitydependingonthemeasuringlength

Withameasuringlengthof1mforstandardfloats:

Fromdensity1210kg/m³A=115mm




FloatF-00B FloatOD67or72mm



Forameasuringlengthof1mforstandardfloats(OD72mm):








Pressure test

BVcertificate

NACE MR 01.75 / ISO 15156


5.4 Withoutsurgepipe(surfacetankmounting)

MENKAR F00


TECHNICAL DATA

Type F-01 / F-01A



Surgepipe Pipes54or60.3







Process connec-


ANSI 2” – 6” 150# RF

ANSI 2” – 6” 300# RF

ANSI 2” – 6” 600# RF


FloatF-01 SurgepipeOD60.3,floatOD52


Densitydependsonthemeasuringlength.






FloatF-01A SurgepipeOD54,floatOD47











Pressure test

BVcertificate

NACE MR 01.75 / ISO 15156


5.5 WithsurgepipeØ54or60.3(surfacetankmounting)

MENKAR F-01A


TECHNICAL DATA

Type F-02 / F-04



Surgepipe 3guiderodsØ76orØ104







Process connec-


ANSI 2” – 6” 150# RF

ANSI 2” – 6” 300# RF

ANSI 2” – 6” 600# RF


FloatF-02 3guiderodsØ76,floatOD52mm








FloatF-04 3guiderodsØ104,floatOD72mm











Pressure test

BVcertificate

NACE MR 01.75 / ISO 15156


5.6 With3guiderodsØ76orØ104(surfacetankmounting)

MENKAR F-02


TECHNICAL DATA

Type F-03A / F-03B



Surgepipe Pipes76.1or88.9







Process connec-


ANSI 2” – 6” 150# RF

ANSI 2” – 6” 300# RF

ANSI 2” – 6” 600# RF


FloatF-03A Pipe76.1,floatOD67








FloatF-03B Pipe88.9,floatOD72











Pressure test

BVcertificate

NACE MR 01.75 / ISO 15156


5.7 WithsurgepipeØ76.1or88.9(surfacetankmounting)

MENKAR F-03


CONTACTORS

6 Contactors

Youwillreceiveelectricalsignalsbymountingoneormoremagneticswitchesonthelevelindicator.Withseveralswitchesyoucan,forexample,outputapumpcontrolcommand(pumpon/off)and/oranalarm(high/low).Levelswitchesforgeneraluseaswellasswitchesforhazardousareascanbesupplied.

Important!

The power supply must be switched off before wiring the instrument.

The density of the liquid can change due to changing pressure / temper-ature. In this case, the float can indicate a different level. In the case of intrinsically safe systems, it may be necessary to provide electrical galvanic isolation.

The process temperature of the switches may depend on the isolation options of the level indicator.

Operating manual:1. Mount the switch in the correct position.2. Move the float from the bottom to the top and back.3. Check the function of the switch.4. If necessary, change the connections of the switch if another function

is required.5. Connect the switch to the mains.

The integrated cables must be protected against pulling, twisting and mechanical damage.

Overvoltageprotectionforreedswitch:

Capacitiveloads(inthecaseofextremelylongcableguides)andlamploadsmaycausehighstartingcurrents,whichcangreatlyreducethelifeoftheswitchcontactswhenclos-ing. It is recommendedthatanovervoltageprotectioncircuit isused inserieswiththeswitchandascloseaspossibletotheswitch.

Fornormal signal circuits, thecapacity in thecable canbeneglectedbecause severalhundredmetresofcablemustbeconnectedtotheswitchtocausedamage.


CONTACTORS

Type HLS-15 LMS-Ha2 LMS-Ha1

Function SPDT SPDT SPDT

System Reed switch bi-stable Reed switch bi-stable Reed switch bi-stable

Max. rated 2.5 A / 60 W / 60 VA 0.8 A / 60 W / 40 VA 2 A / 40 W / 100 VA

Supply voltage 10 - 230V 10 - 230V 10 - 230V

Temperature range -25… +95 °C -40… +180 °C -50… +380 °C

Lifetime 1 x 109 1 x 108 1 x 107

Housing protection IP66 / 67 and IP68 IP 65 IP 67

Connection 5 metres of PVC cable M16 cable gland. M16 cable gland.

Dimensions 65 x 25 x 15 mm 100 x 75 x 40 mm 95 x 65 x 54 mm

Material Resin Aluminium housing AlSi housing

Circuit blackbrownblue

Options Temperature up to +130 °C Temperature up to +130 °C

6.1 Generaluselevelswitch

1 2 3


Type HLS-25i LMS-Ha1E

Function SPDT SPDT

System Reed switch bi-stable Micro switch

Max. rated 250 mA / 1.3 W / 1.3 VA 0.5 A / 20 W / 30 VA

Supply voltage 10 - 30 V 10 - 24 V

Temperature range -25… +100 °C -50… +380 °C

Lifetime 1 x 109 1 x 107

Housing protection IP66 / 67 and IP68 IP 67

Connection 5 metres of PVC cable M20 cable gland. (blue)

Dimensions 80 x 25 x 20 mm 95 x 65 x 54 mm

Material Stainless steel VA4 housing AlSi housing


Options M16 cable gland. (blue)

Approval II 1 GD Exia IIC T6 GaII 1 GD Exia IIC T85°C IP 66/67 Da

Ex i "Simple resource"

6.2 Intrinsicallysafelevelswitches(Exi)


Type HLS-25d LMS-HaD

Function SPDT SPDT

System Reed switch bi-stable Micro switch

Max. rated 2.5 A / 60 W / 45 VA 2 A / 40 W / 100 VA

Supply voltage 10 - 230 V 10 - 230 V

Temperature range -25… +100 °C -40… +380 °C

Lifetime 1 x 109 1 x 107

Housing protection IP66 / 67 and IP68 IP66 / 67 and IP68

Connection 5 metres of PVC cable ¾ "NPT or M20 x 1.5 max 1.5 mm2

Dimensions 90 x 25 x 20 mm 130 x 130 x 90 mm

Material Stainless steel VA4 housing Aluminium housing


1 = brown, 2 = blue, 3 = black

Options Stainless steel VA4 housing2 x SPDT

Approval II 2 GD Exd IIC T6 GbII 2 GD Ex tb IIIC T85 °C Db

II 2G Ex d IIC T3..T4 GbII 2D Ex tb IIIC T135 °C..T200 °C Db

6.3 Pressure-safelevelswitches


6.4 Reedchainforcontinuousdisplay

Itispossibletogeneratea4-20mAsignalbyusingareedchain.Thereedchainismount-edasstandardontheentirelengthoftheindicator.

Important!

If necessary, mount the reed chain on the level indicator. The 4 mA setting (0%) is marked on the reed chain and should correspond to the lowest point of the lower process connection.Supply 12 - 30 VDC

Only + and - terminals should be used for the wiring. The other terminals (3, 4, 5 and 6) can only be used for the factory.


Type Standard Exi Exd

Transmitter "SMART" type "SMART" type "SMART" type

Approval II 1G Ex ia IIC T4..T6 II 2G Ex db IIC T5..T1 GbII 2D Ex tb T100 °C..T350°C

Supply voltage 8 – 35 VDC 8 – 30 VDC 8 – 30 VDC

Temperature range -50… +350 °C -50… +350 °C -50… +350 °C

Measuring accuracy ± 5 mm ± 5 mm ± 5 mm

Pipe material Stainless steel1.4404 (316)

Stainless steel1.4404 (316)

Stainless steel1.4404 (316)

Max. measuring length 5.5 metres 5.5 metres 5.5 metres

Housing material ABS or aluminium Aluminium or VA Aluminium or stainless steel SS316

Type of protection IP 67 IP 67 IP 66 – IP 68

Connection M16 x 1,5 M20 x 1,5 ¾ "NPT, M20 x 1.5

Signal range 4 - 20 mA / 2 conductors 4 - 20 mA / 2 conductors 4 - 20 mA / 2 conductors

Options Higher accuracy (± 2.5 or ± 1 mm)

M16 x 1.5, M20 x 1.5; ½ "NPT; ¾ "NPT connection

HARD

IP 68 housing

PROFIBUS

FIELDBUS

Stainless steel VA4 housing

Housing with LCD display (also with optical buttons)

Signal range (ohm or V) output


7 SERVICE

7.1 Storage

Storetheinstrumentinadryanddust-freeplace.Keepawayfromdirectcontinuoussunandheat.Avoidexternalloadsbeingplacedontheinstrument.

Thepermissiblestoragetemperaturesforstandard instrumentswithelectricalcompo-nentsare-40°Cto+70°C.

7.2 Maintenance

Attention!

Appropriate safety precautions must be taken when removing the instru-ment from the pipeline. As a rule, new seals must be used when they are being reinstalled in the pipeline!

7.3 Returningtheinstrumenttothemanufacturer

Duetocarefulmanufacturingprocessesandfinalchecksontheinstrument,theMENKAR is expected to operatewithout any troublewhere both installation and operation are carriedoutinaccordancewiththeseinstructions

ShouldyouneverthelessneedtoreturnainstrumenttoMECONGmbHpleaseobservethefollowingpoints:

Attention!

In order to protect the environment and safeguard the health and safety of our personnel, all instruments sent to MECON GmbH for repair must be free of toxic and hazardous substances. This also applies to cavities in these instruments. If necessary, the customer is kindly requested to neutralise or rinse these instruments before returning them to MECON GmbH.The customer must confirm this by filling in an appropriate form which is available for download on the MECON website.

» https://www.mecon.de/en/device-returns/


Attention!

If, in spite of these requirements, instruments are returned that contain toxic and dangerous substances, MECON GmbH is entitled to dispose of these substances at the expense of the customer without making any fur-ther enquiries.

7.4 Disposal

Attention!

Comply with the regulations in your country when disposing of instruments

8 FAULTREPORTING

Faultdescription Possiblecauseoffaultandrectification

Magneticindicatordoesnotreact Impuritiesblockingthefloat:Cleaningandcheckingifthefloatis

intact.

Floatdefective:Thefloatmustbereplaced.

Noelectricalsignal Checkelectricalconnectionsaccordingtowiringdiagram.


MECONGmbHRöntgenstr.10550169KerpenGermany

Tel.: +49(0)223760006-0Fax: +49(0)223760006-40E-mail: [email protected]

Web: www.mecon.de

Level indicator - MECON

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Transcript of Level indicator - MECON