Type 8718 / 8719 LFC, Liquid Flow Controller Type 8708 / 8709 LFM, Liquid Flow … · The actual flow-rate value supplied by the integrated sensor is available as an output, via a

Operating Instructions

Bedienungsanleitung Manuel d‘utilisation

Type8718/8719

LFC, Liquid Flow Controller

Type8708/8709

LFM, Liquid Flow Meter

Type 8719 Type 8709

Type 8718 Type 8708

We reserve the right to make technical changes without notice.Technische Änderungen vorbehalten.Sous resérve de modification techniques.

© 2009 Bürkert Werke GmbH & Co. KG

Operating Instructions 0910/01_EU-ML_00805765

3

Contents

1. OperatinginstructiOns........................................................................................................................................................6

1.1. symbols......................................................................................................................................................................................6

2. authOrizeduse.............................................................................................................................................................................7

2.1. restrictions...............................................................................................................................................................................7

2.2. predictableMisuse................................................................................................................................................................7

3. BasicsafetyinstructiOns.................................................................................................................................................8

4. generalinfOrMatiOn................................................................................................................................................................9

4.1. scopeofsupply.....................................................................................................................................................................9

4.2. Warranty......................................................................................................................................................................................9

4.3. trademarks...............................................................................................................................................................................9

4.4. informationontheinternet............................................................................................................................................10

5. systeMdescriptiOn................................................................................................................................................................11

5.1. generaldescription...........................................................................................................................................................11

5.1.1. LFC,LiquidFlowController..................................................................................................................11

5.1.2. LFM,LiquidFlowMeter.........................................................................................................................11

5.2. functions.................................................................................................................................................................................11

5.2.1. FunctionoftheLFC,LiquidFlowController.....................................................................................11

5.2.2. FunctionoftheLFM,LiquidFlowMeter............................................................................................12

5.2.3. Functionofthesensor............................................................................................................................12

5.2.4. Controlelectronics..................................................................................................................................13

5.3. proportionalvalve...............................................................................................................................................................15

6. technicaldata.............................................................................................................................................................................16

6.1. labelsonthedevice.........................................................................................................................................................16

6.1.1. Inscriptionontheratingplate/calibrationplate..............................................................................16

6.2. Operatingconditions........................................................................................................................................................17

LFC, Liquid Flow Controller Type 8718, 8719

LFM, Liquid Flow Meter Type 8708, 8709

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6.3. conformitywiththefollowingstandards...............................................................................................................17

6.4. Mechanicaldata..................................................................................................................................................................18

6.5. installationdimensions....................................................................................................................................................19

6.6. fluidicdata............................................................................................................................................................................25

6.7. electricaldata.......................................................................................................................................................................25

7. installatiOnandstart-up................................................................................................................................................27

7.1. safetyinstructions.............................................................................................................................................................27

7.2. procedurespriortoinstallation...................................................................................................................................27

7.3. sequenceofthestepstobeperformed................................................................................................................28

7.4. fluidinstallation..................................................................................................................................................................28

7.5. electricalinstallation.........................................................................................................................................................29

7.5.1. Settingthebusaddressondeviceswithoutrotaryswitchforsettingtheaddress.................30

7.5.2. Settingthebusaddressondeviceswithrotaryswitchforsettingtheaddress(Types8718/8708)..............................................................................................................................30

7.5.3. Pinassignment.........................................................................................................................................31

8. OperatiOnandfunctiOn....................................................................................................................................................34


8.2. Operationofthelfc/lfM..........................................................................................................................................34

8.2.1. LEDs...........................................................................................................................................................35

8.2.2. Inputs/Outputs.........................................................................................................................................35

8.3. functionsofthelfc/lfM...........................................................................................................................................38

8.3.1. Standardcontrolmode..........................................................................................................................39

8.3.2. Autotunefunction....................................................................................................................................39

8.3.3. Safetyfunction.........................................................................................................................................40

8.3.4. Set-pointvalueprofile............................................................................................................................40

8.3.5. Controlmode...........................................................................................................................................40

9. Maintenance,trOuBleshOOting.................................................................................................................................41


9.2. MaintenanceWork..............................................................................................................................................................41

9.2.1. Maintenancewhenoperatingwithhighlysoiledfluids...................................................................42

9.2.2. Cleaningandrecalibrationatthefactory...........................................................................................43

9.3. Malfunctions..........................................................................................................................................................................43

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10. accessOries/spareparts.............................................................................................................................................45

10.1. accessories............................................................................................................................................................................45

10.1.1.Electricalaccessories.............................................................................................................................45

10.1.2.Fluidaccessories.....................................................................................................................................46

10.1.3.MassFlowCommunicator(PCsoftware).........................................................................................46

10.1.4.Documentation.........................................................................................................................................47

10.2. spareparts.............................................................................................................................................................................47

11. shutdOWn........................................................................................................................................................................................48


11.2. removalofthelfc/lfM.............................................................................................................................................48

12. packaging,stOrage,transpOrt.................................................................................................................................49

12.1. packing,transporting.......................................................................................................................................................49

12.2. storing......................................................................................................................................................................................49

13. returningthedevice............................................................................................................................................................50

14. dispOsal............................................................................................................................................................................................51

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Operating Instructions

OperaTinginsTrucTiOns1.

Theoperatinginstructionsdescribetheentirelifecycleofthedevice.Keeptheseinstructionsinalocationwhichiseasilyaccessibletoeveryuserandmaketheseinstructionsavailabletoeverynewownerofthedevice.

Warning!

theoperatinginstructionscontainimportantsafetyinformation!

Failuretoobservetheseinstructionsmayresultinhazardoussituations.

Theoperatinginstructionsmustbereadandunderstood.•

symbols1.1.

Danger!

Warnsofanimmediatedanger!

Failuretoobservethewarningresultinafatalorseriousinjury.•

Warning!

Warnsofapotentiallydangeroussituation!

Failuretoobservethewarningmayresultinseriousinjuriesordeath.•

CauTion!

Warnsofapossibledanger!

Failuretoobservethiswarningmayresultinamediumorminorinjury.•

noTe!

Warnsofdamagetoproperty!

Failuretoobservethewarningmayresultindamagetothedeviceortheequipment.•

indicatesimportantadditionalinformation,tipsandrecommendations.

referstoinformationintheseoperatinginstructionsorinotherdocumentation.

designatesaprocedurewhichyoumustcarryout.→

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Authorized use

auThOrizeduse2.

non-authorizeduseofthelfc/lfMtypes8718,8719/8708,8709maybeahazardtopeople,nearbyequipmentandtheenvironment.

TheLFCTypes8718and8719aredesignedforcontrollingtheflow-rateofcleanandlow-viscosityliquids.•

TheLFMTypes8708and8709areusedexclusivelyformeasuringtheflow-rateofcleanandlow-viscosityliquids.•

Onlythefluidsstatedontheratingplateandonthecalibrationprotocolmaybeusedforoperation.•

Ifusedoutdoors,thedevicemustbeprotectedfromtheelements.Protectagainsthumidityanddirect•sunlightandobservethepermittedambienttemperature.

Duringuseobservetheauthorizeddataandoperatingconditionsspecifiedinthecontractdocumentsand•operatinginstructions,aswellastherangeofapplicationsdescribedinChapter5.1. .

Correcttransportation,storageandinstallation,andcarefuluseandmaintenance,areessentialforreliable•andfaultlessoperation.

Usethedeviceonlyasintended.•

restrictions2.1.

Ifexportingthesystem/device,observeanyexistingrestrictions.

predictableMisuse2.2.

TheLFC/LFMTypes8718,8719/8708,8709mustnotbeusedforcontrolling/measuringtheflow-rateof•fluidscontainingparticles(particlesize>20µm).

Donotoperatethedevicewithoutthestainlesssteelmeshfilterdiscinstalledatthefactory.•

Donotfeedanyotherfluidsintothesystemotherthanthedesignatedoperatingfluidindicatedonthedevice•typeplate.Exception:Agentforcleaninganddecontaminatingthedevice(seealsoChapter9.2.1. ).Indoingso,observetheresistanceofthematerialsusedinthedevice.TheChemicalResistanceChartcanbefoundontheInternetat:www.burkert.com Documentation Brochures&CataloguesIfindoubt,contactthemanufacturer.

Donotoperatethedeviceinanmountingpositionwhichdeviatesfromthecalibrationconditions.•

Donotputanyloadsonthehousing(e.g.byplacingobjectsonitorstandingonit).•

Donotmakeanymodificationstothedevicehousings.Donotpaintthehousingpartsorscrews.•

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Type8718,8719/8708,8709

http://www.burkert.com/COM/literatur.php

8

Basic Safety Instructions

BasicsafeTyinsTrucTiOns3.Thesesafetyinstructionsdonotmakeallowanceforany

contingenciesandeventswhichmayariseduringtheinstallation,operationandmaintenanceofthedevices.•

localsafetyregulations–theoperatorisresponsibleforobservingtheseregulations,alsowithreferencetothe•installationpersonnel.

danger–highpressure!

Beforelooseningthelinesandvalves,turnoffthepressureandventthelines.•

riskofelectricshock!

Beforeremovingcovers,• switchoffthepowersupplyandsecuretopreventreactivation!

Observeapplicableaccidentpreventionandsafetyregulationsforelectricalequipment!•

dangerfromescapingoperatingfluid!

Ifcontactismadewiththeoperatingfluidanditsreactionproducts,includinginvaporform(touching,inhaling),•thereisanacuteriskofinjury.

Observeapplicableaccidentpreventionandsafetyregulationsfortheoperatingfluidsused.•

generalhazardoussituations.

Topreventinjury,ensurethat:

Thesystemcannotbeactivatedunintentionally.•

Installationandrepairworkmaybecarriedoutbyauthorizedtechniciansonlyandwiththeappropriatetools.•

Afteraninterruptioninthepowersupplyorfluidsupply,ensurethattheprocessisrestartedinadefinedor•controlledmanner.

Thedevicemaybeoperatedonlywheninperfectconditionandinconsiderationoftheoperatinginstructions.•

Thegeneralrulesoftechnologyapplytoapplicationplanningandoperationofthedevice.•

noTe!

electrostaticsensitivecomponents/modules!

Thedevicecontainselectroniccomponentswhichreactsensitivelytoelectrostaticdischarge(ESD).Contactwithelectrostaticallychargedpersonsorobjectsishazardoustothesecomponents.Intheworstcasescenario,theywillbedestroyedimmediatelyorwillfailafterstart-up.

ObservetherequirementsinaccordancewithEN61340-5-1and5-2tominimizeoravoidthepossibilityof•damagecausedbysuddenelectrostaticdischarge!

Alsoensurethatyoudonottouchelectroniccomponentswhenthepowersupplyvoltageispresent!•

Failure

to

observe

this

operating

manual

and

its

operating

instructions

as

well

as

unauthorized

tampering

with

the

device,

release

us

from

any

liability

and

also

invalidate

the

warranty

covering

the

devices

and

accessories!

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Type8718,8719/8708,8709

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General Information

generalinfOrMaTiOn4.

scopeofsupply4.1.

Checkimmediatelyuponreceiptofthedelivery,thatthecontentsarenotdamagedandthatthetypeandscopeagreewiththedeliverynoteandpackinglist.

Ifthereareanydiscrepancies,pleasecontactusimmediately.

germany

Contactaddress:

BürkertFluidControlSystemsSalesCenterChr.-Bürkert-Str.13-17D-74653IngelfingenTel.+49(0)7940-1091111Fax+49(0)7940-1091448E-mail:[email protected]

international

Contactaddressescanbefoundonthefinalpagesoftheprintedoperatinginstructions.

Andalsoontheinternetat:

www.burkert.com Bürkert Company Locations

Warranty4.2.

Thisdocumentcontainsnopromiseofguarantee.Pleaserefertoourgeneraltermsofsalesanddelivery.Thewar-rantyisonlyvalidiftheLFC/LFMTypes8718,8719/8708,8709areusedasintendedinaccordancewiththespecifiedapplicationconditions.

ThewarrantyextendsonlytodefectsintheLFC/LFMTypes8718,8719/8708,8709anditscomponents.

Weacceptnoliabilityforanykindofcollateraldamagewhichcouldoccurduetofailureormalfunctionofthedevice.

Trademarks4.3.

Thebrandslistedbelowaretrademarksofthecorrespondingcompanies/associations/organisations

PROFIBUS PROFIBUSNutzerorganisatione.V.

DeviceNet ODVAOpenDeviceNetVendorAssociation

CANopen CiACANinAutomation

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Type8718,8719/8708,8709

http://www.burkert.com/COM/179.html

10

General Information

informationontheinternet4.4.

OperatinginstructionsanddatasheetsforTypes8718,8719,8708und8709canbefoundontheInternetat:

www.burkert.com Documentation Type

ThecompletedocumentationisalsoavailableonCDwhichcanbeorderedbyquotingpartno.804625.

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11

System Description

sysTeMdescripTiOn5.

5.1. generaldescription

TheLFC/LFMTypes8718,8719/8708,8709aredevicesforcontrollingormeasuringtheflow-rateofliquidsinprocesstechnology.Thedevicesarespecifiedforthecontrolandmeasurementoflowflow-rates.

lfc,liquidflowcontroller5.1.1.

Theactualflow-ratevaluesuppliedbytheintegratedsensoriscomparedinthedigitalcontrolelectronicswiththeset-pointflow-ratevaluespecified,viaastandardsignalorfieldbus.Theactualflow-ratevalueisalsoavailableasanoutput,viaastandardsignalorfieldbus.

Ifthereisacontroldeviation,theactuatingvariableoutputtotheproportionalvalveismodifiedviaacontrolalgorithm.Asaresult,theactualflow-rateisadjustedtotheset-pointvalueandtheflow-ratecanbeheldonafixedvalueorfollowapredefinedprofilesequence,irrespectiveofpressurechangesorotherdisturbancesinthesystem.

Alow-frictionproportionalvalvewithahighresponsesensitivityisusedasanactuatingelement.

lfM,liquidflowMeter5.1.2.

Theactualflow-ratevaluesuppliedbytheintegratedsensorisavailableasanoutput,viaastandardsignalorfieldbus.

functions5.2.

functionofthelfc,liquidflowcontroller5.2.1.

TheLFCTypes8718and8719arecompactdevicesforcontrollingtheflow-rateofliquids.

Theycorrectastipulatedset-pointflow-ratevalueindependentlyofdisturbancevariables,suchaspressurefluc-tuationsorfluctuatingflowresistance,e.g.duetofiltersoiling.

TheLiquidFlowControllerconsistsofthefollowingcomponents:

Flowsensor(Qsensor),•

Controlelectronics(withsignalprocessing,controlandvalveactuationfunctions),•

Proportionalsolenoidvalveasanactuatingelement.•

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System Description

w

p

xout

y

x

xd=w-x

Controlelectronics

Qsensor Actuatingelement(proportionalvalve)

Components of the Liquid Flow ControllerFig. 1:

Operatingmode

Theset-pointdefaultvalue(w)isimplementedelectricallyviaastandardsignalorafieldbus.Theactualvalue(x)measuredbythesensoriscomparedwiththeset-pointvalueinthecontroller.Thecontrollersuppliestheactuatingelementwithapulse-widthmodulatedvoltagesignalasanactuatingvariable.Thepulse-dutyfactorofthevoltagesignalisvariedaccordingtotheestablishedcontroldeviation.

Theactualvalueisalsosuppliedexternallyasxoutviaananalogueelectricalinterfaceorafieldbusandisavailabletotheuserformonitoringpurposesorotherevaluations(e.g.consumptiondeterminationbyintegration).

functionofthelfM,liquidflowMeter5.2.2.

TheLFMTypes8708and8709lacktheproportionalvalvecomponent,comparedtothecorrespondingLFCTypes8718and8719.

Thedevicescanthereforeonlymeasuretheflow-rateandnotcorrectitindependently.Thepropertiesoftheothercomponents,inparticularthesensordescribedbelow,areidenticaltothoseoftheLFCTypes.

functionofthesensor5.2.3.

Theflow-rateismeasuredaccordingtothedifferentialpressuremethod.

Ameasuringorificeinthemainductgeneratesapressuredropinaflow-ratefromp1top2;thispressuredropismeasuredbythedifferentialpressuresensor(seeFig. 2: Flow-rate measurement; Differential pressure method).Thedifferentialpressuresensor,constructedfromtwoindividualpressuremeasuringcells,suppliesapreciseandtemperature-compensatedmeasuringsignalwhichisusedtocalculatetheflow-rate.

Irrespectiveofthecontrolstatus,theflow-ratevaluemeasuredbythesensorissentviaastandardanaloguesignaloutputordigitallyviathefieldbus.

Tomaintainadynamicorquietactualvalueoutputsignal,thedampingoftheoutputsignalcanbechangedwiththe"MassFlowCommunicator"software(seechapter10.1.3. Mass Flow Communicator (PC software)).

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System Description

p1 p2

Fig. 2: Flow-rate measurement; Differential pressure method

propertiesofthedifferentialpressuremethod

Thismeasuringmethodhasveryshortresponsetimesandthereforealsoallowsveryshortsamplingratesby•thecontrolelectronics.

Themeasurementoccursstatically,nomovingpartsarerequiredinthefluid.•

controlelectronics5.2.4.

Microprocessorelectronicsprocessthecurrentset-pointandactualflow-ratesandcontroltheactuatingelement.

Thesensorsignalisprocessedbythecontrolelectronicsandisconvertedbythecalibrationcurvestoredinthedeviceintoavaluecorrespondingtotheactualflow-rate.

Tocontrolcriticalprocesses,wherequickflow-ratechangesarenotpermitted,arampfunctioncanbeactivatedvia the "MassFlowCommunicator" software (seeChapter10.1.3. Mass Flow Communicator (PC software)).Indoingso,theparametersforanascendingandadescendingset-pointvaluecanbesetseparately.

MoredetailedinformationontherampfunctionandonallotherfunctionscanbefoundinthesoftwaredocumentationfortheLFC/LFM.

controldeviation:

Controldeviation = Set-pointvalue – Actualvalue

xd = w – x

ThecontroldeviationisprocessedaccordingtoaPIcontrolalgorithm.

Thecontrolparametersaresetatthefactory.Totakeaccountofthepropertiesofthecontrolpath,thecontrolleroperateswithpath-dependentamplificationfactors.Whentheautotunefunctionruns,thesearedeterminedautomatically.

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System Description

controlparameters:

Thedevicehasastoredparameterwhichcanchangethecontroldynamicswiththeaidofthe"MassFlowCommuni-cator"software(seeChapter10.1.3. Mass Flow Communicator (PC software)).Itsextremeeffectsare

averyquickadjustmentinwhichovershootsareaccepted,1.

asloweradjustmenttotherequiredflow-rate.2.

Theformermayresultinthecontrollerrespondingimmediatelytoverylowcontroldeviations,causingthecontroltobeveryturbulent.Iftheprocessislessdynamic,thebehaviourofthecontrollermaybedampedsothatminorfluctuationsoftheactualvalueorset-pointvalueareadjustedslowly.

actuatingvariable:

Theactuatingvariableisavailableasapulse-widthmodulated(PWM)signaltotheproportionalvalve.Thefrequencyofthissignalisadjusteddependingonthevalveused.

Thepulse-dutyfactorofthePWMsignalisusedasanactuatingvariable.

Thepulse-dutyfactoristhequotientoftheswitch-ontimeandthecycleduration.

Thegreatertheswitch-ontime,i.e.thelongerthevalvecoilisactuated,thegreatertheaveragecoilcurrent.Thecoilcurrentisthecauseoftheresultingmagneticfieldinthecoil.

Agreatercoilcurrentresultsinagreatermagneticfield,whichincreasesthevalve'smagneticforce,whichfinallymovesthevalvearmature(alsoknownasvalvecore)upagainstaspringforce.

correctiontime:

Anoverallbriefcorrectiontimeisachievedbytheproportionalvalverespondingrapidlyasanactuatingelementandbythebriefresponsetimeofthemeasuringelement(seeChapter6.6. Fluidic Data).

zeropointshut-off:

Toensurethesealingfunctionofthevalve,azeropointshut-offisintegrated.Thisisactivatedifthefollowingconditionsoccuratthesametime:

Set-pointvalue<10%ofnominalflow-rateQnom and Actualvalue<10%ofnominalflow-rateQnom

Ifzeropointshut-offisactive,thePWMsignalissetto0%sothatthevalveiscompletelyclosed.

Thevalveisadirect-acting,normallyclosedvalve.Areturnspringpressesthevalvearmatureontothevalveseatandsealsit,providedthecoilisnotactuated,i.e.itcannotgenerateamagneticforcecounteractingtheresetforce.Asoftseatsealintegratedinthevalvearmatureensuresthatthevalvereliablyshutsoffthefluidflow.

set-pointvalue:

Theset-pointvalueisspecified,accordingtothedevicemodel,eitherasananaloguesignalviathestandardsignalinputordigitallyviatheserialinterfaceorthefieldbusinterface.

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System Description

proportionalvalve5.3.

TheLFCusesdirectacting,lifting-armature,proportionalvalvesasactuatingelements,takenfromtheBürkertrangeofvalves.

Thelow-frictionguideofthevalvearmatureensures(inconjunctionwiththePWMcontrol)acontinuous,mainlylinearcharacteristic,aswellashighresponsesensitivity.BothareimportantfortheoptimumfunctionalityoftheLFCclosedcontrolcircuit.

Theorificesofthevalvesarebasedontherequirednominalflow-rateQnom,thepressureconditionsintheappli-cationandthedensityoftheoperatingfluid.

Aproportionalvalveisselectedbythemanufactureronthebasisofthisdata,sothattheflow-ratecoefficientkVoftheLFC(accordingtotheflow-rateequationsatthespecifiedpressureconditions)allowsamaximumflow-rateofatleasttherequirednominalflow-rateQnom.

Ifthedeviceisoperatedwithinthespecifiedpressurerange,theproportionalvalvesimultaneouslytakesoverthesealingfunctiontogetherwiththecontrolfunction.

Inthecaseofspecial,hardsealmaterials,thesealfunctioncouldnotbeensured.Inthiscaseanaddi-tionalshut-offvalvemayberequired.

TheLFCorLFMistypicallycalibratedtounitswhichareusefulforlowflow-ratessuchasl/horml/min.

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Technical Data

TechnicaldaTa6.

CauTion!

riskofinjuryfrompressureanddischargeoffluid.

Importantdevice-specifictechnicaldataisindicatedontheratingplateandthecalibrationplate(seeChapter6.1.1. Inscription on the rating plate / calibration plate).

Observepermittedfluidaccordingtoratingplate(dependingonsealmaterial).•

Observepermittedpressurerangeonthecalibrationplateofthedevice.•

labelsonthedevice6.1.

examples: 8719 LFC WASSER

M

ad

e in

Ge

rma

ny

00202378 W1XLP24V DC 0-10V FKM

6,0 l/h

S/N 1006

Calibrationplate

CalibrationDate29. 01. 2009 Pressure 2.0 barHorizontalmountingposition

Ratingplate

8719 LFC WASSER

Mad

e in

Ger

man

y

00202378W

1XLP24V DC 0-10V

6,0 l/h

S/N 1006

Rating plate, calibration plateFig. 3:

6.1.1. inscriptionontheratingplate/calibrationplate

Exampleofratingplate

8719 LFC WASSER

Ma

de

in G

erm

any

00202378 W1XLP24V DC 0-10V FKM

6,0 l/h

S/N 1006

Type

Briefdescriptionofthedevice

Operatingfluid

Finalvalue(Qnom)andunit

Powersupplyvoltage,actualvalue

Sealmaterial

Serialnumber,CEidentification

Barcode

Identificationnumberofthedevice

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Technical Data

Exampleofcalibrationplate

CalibrationDate28. 01. 2009 Pressure 2.0 barHorizontalmountingposition

Calibrationdate

Calibrationpressure

Mountingposition

Operatingconditions6.2.

Warning!

riskofinjuryfrommalfunctionduetoeffectsofweather!

TheLFC/LFMisnotdesignedforunrestricteduseoutdoors.Ifthedeviceisnotprotectedfromtheelements,thereisariskofinjuryfromthedevicefailing.

Protectthedevicefromdirectsunlight.•

Ensurethattheambienttemperaturepermittedforthedeviceisobserved.•

Protectthedevicefromhumidityinconsiderationoftheprotectionclassindicatedbelow.•

allowabletemperatures

Ambienttemperature: Operation: 0–+55°CStorage: -10–+70°C

Fluidtemperature: +10–+40°C

Permittedairhumidity: 0–95%,withoutcondensation

Operatingfluids: cleanandlow-viscosityliquids

ProtectionclassinaccordancewithDINEN60529: Types8709and8719:IP65(onlyifcables,plugsandsocketshavebeen

connectedcorrectly)Types8708and8718:IP40

conformitywiththefollowingstandards6.3.

CEmarkconformstoEMCDirective2004/108/EEC(previously:89/336/EEC)(onlyifcables,plugsandsocketshavebeenconnectedcorrectly)

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Technical Data

Mechanicaldata6.4.

Mountingposition: horizontalorvertical(seecalibriationplate/calibrationprotocol)

Material: Housing:Types8709and8719:Stainlesssteel1.4404Types8708and8718:Stainlesssteel1.4404

Cover: Types8709and8719:PTBTypes8708and8718:PC

Sealingmaterial FKM,EPDM,FFKM(seeratingplate)

Weight: Types8709and8719:approx.1200g(stainlesssteel)Types8708and8718:approx.1000g(stainlesssteel)

Dimensions:(LxHxW) Types8709and8719:115mmx137.5mmx37mm

Types8708and8718:107mmx115.5mmx28mmTypes8708and8718withflangedconnection:107mmx115.5mmx43mm

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Technical Data

installationdimensions6.5.

lfctype8719andlfMtype8709:

M4-8deep

AA

71

10

97

23

42

M4-8deep

4

10

12.5

37115

dimensiona

G1/4 G1/8

NPT1/4 NPT1/8

137.5

Installation dimensions LFC Type 8719 and LFM Type 8709Fig. 4:

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Technical Data

lfctype8719andlfMtype8709,fieldbusversion:

dimensiona

G1/4 G1/8

NPT1/4 NPT1/8

M4-8deep

AA

71

10

137.5

97

23

42

M4-8deep

4

10

12.5

37115

112

16.5

Installation dimensions LFC Type 8719 and LFM Type 8709, field bus versionFig. 5:

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Technical Data

lfctype8718andlfMtype8708:

2xM4-6deep

AA

12.5

12

84

12

4

115.5

87

28 20

107

dimensiona

G1/4 G1/8

NPT1/4 NPT1/8

Installation dimensions LFC Type 8718 and LFM Type 8708Fig. 6:

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Technical Data

lfctype8718andlfMtype8708,withflangedconnection:

58.5

8

92

84

107

4

115.5

97

28

10

ø6

17.75

35.5

58.5M4

M4

ø6

17.75

35.5

Installation dimensions LFC Type 8718 and LFM Type 8708, with flanged connectionFig. 7:

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Technical Data

lfctype8718andlfMtype8708,fieldbusversion:

dimensiona

G1/4 G1/8

NPT1/4 NPT1/8

2xM4-6deep

AA

12.5

1284

12

4

115.5

87

28 20

43.5

16.5

107

Installation dimensions LFC Type 8718 and LFM Type 8708, field bus versionFig. 8:

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Technical Data

lfctype8718andlfMtype8708,fieldbusversionwithflangedconnection:

58.5

8

92

84

107

4

115.5

97

28

10ø6

17.75

35.5

58.5M4

M4

ø6

17.75

35.5

43.5

16.5

Installation dimensions LFC Type 8718 and LFM Type 8708, field bus version with flanged connectionFig. 9:

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Technical Data

6.6. fluidicdata

Finalvalue(Qnom): 0.6–36l/hwithregardtowater(seeratingplate/calibrationprotocol)

Measuringrange/controlrange:1:10

Measuringprecision: ±1.5%o.r.±0.5%f.s.(after15min.warminguptime)

Reproducibility: ±0.5%f.s.

Correctiontime(t95%): <500ms

Max.operatingpressure: 2barrel,6barrel,10barrel,accordingtoversiondependingonthenominalsizeofthevalveandthesensormeasuringrange(formoredetailedinformationseecalibrationprotocol)

Calibrationfluid: Operatingfluidorwater(seecalibrationprotocol)

Portconnections: G1/4orNPT1/48708,8718:alsoavailableasflangedconnection

electricaldata6.7.

Powersupply: 24VDC±10%residualripple<2%

Powerconsumption: 8718and8719:max.7.5Wforfieldbusversionmax.10W

8708and8709:max.2.5Wforfieldbusversionmaxmax.5W

Inputs:

Set-pointvalue: Standardsignal0/4–20mAmax.inputimpedance:300ΩResolution:5µA

Standardsignal0–5/10V min.inputimpedance:20kΩResolution:2.5mV

Binaryinput: Low-active,foractivationconnecttoDGND(forbinaryinputs)(assignmentcanbeconfigured)

8709and8719:3binaryinputs8708and8718:2binaryinputs

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Technical Data

Outputs:

Actualvalue: Standardsignal0/4–20mAmax.burden:600ΩResolution:20µA

Standardsignal0–5/10Vmax.current:10mAResolution:10mV

Binaryoutput: potential-freechangers60V,1A,60VA(assignmentcanbeconfigured)

8709and8719:2binaryoutputs8708and8718:1binaryoutput

Display:

Light-emittingdiodes: StatusdisplayforPower,Communication,Limit,Error(assignment canbeconfigured)

8709and8719:4LEDs8708and8718:3LEDs

Fieldbuses: alternativetothestandardsignalversion

PROFIBUSDPV1DeviceNetCANopen

Electricalconnections: 8719and8709:8-poleroundsocket15-poleSub-HDsocketoptional:5-poleM12socketorplugforfieldbus

8718and8708:15-poleSub-Dplugoptional:5-poleM12socketorplugforfieldbus

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Installation and Start-up

insTallaTiOnandsTarT-up7.

safetyinstructions7.1.

Danger!

riskofinjuryfromhighpressureintheequipment!



Ifcontactismadewiththeoperatingfluidanditsreactionproducts,includinginvaporform(touching,inhaling),thereisanacuteriskofinjury.


riskofinjuryduetoelectricalshock!

Beforeremovingcovers,switchoffthepowersupplyandsecuretopreventreactivation!•


Warning!

riskofinjuryfromimproperinstallationorimproperstart-up!

Installationandstart-upmaybecarriedoutbyauthorizedtechniciansonlyandwiththeappropriatetools!•

riskofinjuryfromunintentionalactivationofthesystemandanuncontrolledrestart!

Securesystemfromunintentionalactivation.•

Followinginstallation,ensureacontrolledrestart.•

procedurespriortoinstallation7.2.

BeforeinstallingtheLFC/LFM,removedirtfromthepipesandfluidsystemcomponents.→

Connectasuitablefilter(→ ≤ 20µmmeshsize)upstreamtoensurethattheoperatingfluidiskeptclean.

noTe!

duringinstallationobservethefollowing!

Themountingpositionaccordingtocalibrationplateorcalibrationprotocol.•

Theuseofapowersupplyunitwithadequatepower.•

Themaximumpermittedresidualrippleoftheoperatingvoltage.•

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sequenceofthestepstobeperformed7.3.

Installandstart-uptheLFC/LFMinthedescribedsequence:

1. Mechanicalandfluidinstallation

2. Electricalinstallation

3. Applypressurewithoperatingfluid

4. Flushandcompletelydeaeratethelineswithoperatingfluidatcalibrationpressure

5. Regularoperatingmode

fluidinstallation7.4.

Danger!



Selecttheavailablefluidconnectionssuitableforthemaximumflow-rate.Inletpathsarenotrequired.

Ifrequired,thedevicescanalsobesuppliedwithfittedfluidconnections.

Warning!

dangerfromleaks!

Ifflow-ratesarelowandpressureshigh,ensurethatthesystemissealedtopreventincorrectmeteringortheoperatingfluidfromleaking.

Toensurethatthesealissecure,observethemodeofoperationdescribedbelow.•

Tosealthesystemproperly,installtheclampingringscrewjointsasfollows:

Fitpipeconnectionstension-free(ifrequired,usecompensators).→

Usepipewithsuitablediameterandsmoothsurface.→

Sawthepipestraightanddeburr.→

Firstpushtheunion,thenthesupportring(ifavailable)andfinallytheclampingringinthestatedsequence→ontothepipe.

Insertthepipeallthewayintothescrewjoint.→

Tightenunionbyhand.→

Counterwithawrenchonthescrew-inside(donotputpressureonthedevicehousing)andtighten1¼→revolutions.

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noTe!

Duringprolongedoperatingpauses,drainthefluidoutoftheLFC/LFMandflushwithcompressedair.Todothis,thedevicemustbeactuatedsothatthevalveisopen.

Ensurethatthecalibrationpressureofthedeviceisnotexceeded.•

ToohighapressurewithintheLFC/LFMwillcauseirreparabledamagetothedevice.

electricalinstallation7.5.

Danger!




Warning!

riskoffireandignitionduetoelectrostaticdischarge!

Ifthedeviceiselectrostaticallycharged,highlyflammablefluidvaporsmayigniteifadischargeoccurs.

Topreventanelectrostaticcharge,connectthehousingtothefunctionearth(FE)viatheshortestpossible•cablelength(cross-sectionaslargeaspossible).

dangerfromelectromagneticfields!

IftheFEconnectionisnotconnected,theconditionsoftheEMCLawarenotbeingsatisfied!

Connectthehousingtothefunctionearth(FE)viatheshortestpossiblecablelength(cross-sectionaslargeas•possible).

noTe!

importantinformationfortheproblem-freefunctioningofthedevice:

TheGNDorearthcablesforallsignalsoftheLFC/LFMmustalwaysbefedseparatelytotheLFC/LFM.IfallGNDsignalsarebridgeddirectlyontheLFC/LFMandonlyonecommoncableisfedtothecontrol,signaldisplacementsandinterferenceoftheanaloguesignalsmayoccur.

Connectthefunctionearth(FE)totheindicatedscrew,e.g.withtheaidofaringtongue.→

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7.5.1. settingthebusaddressondeviceswithoutrotaryswitchforsettingtheaddress

ThebusaddressofthedevicescanbeseteitherviatheBürkertconfigurationtool“MassFlowCommunicator”in"Views"→ PROFIBUS/DeviceNet/CANopenordirectlyviathebusmaster.

Whenanaddresshasbeenchanged,itmustbere-initialisedontheslaveandonthemaster.Indoingso,itisnecessary,dependingonthebus,tosendacorrespondingtelegram.

Recommendation:Toensureatrouble-freesetting,thedeviceshouldbereset.(Disconnectthedevicefromthepowersupply).

settingthebusaddressondeviceswithrotaryswitchfor7.5.2.settingtheaddress(Types8718/8708)

Whenthedeviceisswitchedon,theaddresssetwiththerotaryswitchesisacceptedasaslaveaddress.

Validaddressesare: •PROFIBUS 0–126•DeviceNet 0–63•CANopen 1–127

Iftheaddresswassetoutsidethepermittedrange,theaddresssettinghasthevalidityasdescribedinChapter 7.5.1. .

lsBUnitposition(x1)

Unitposition Digittimes10–9 0–9

MsB

Tensposition

(x10)

Tensposition Digittimes100–9 0–90A 100B 110C 120D 130E 140F 150

TheaddressiscomposedofLSB+MSB

Example:

address MsBsetting lsBsetting1 0 163 6 3100 A 0127 C 7

Setting the bus address on devices with rotary switch (Types 8718 / 8708)Fig. 10:

Ifanaddresssettingisrequiredusingtheavailablerotaryswitchesviathebusmaster,thiscanbeimplementedbysettinganaddressoutsidethevalidrange.

Achangetothebusaddressviatherotaryswitchesdoesnotbecomeeffectiveuntilthedeviceisrestarted.

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pinassignment7.5.3.

pinassignmentlfctype8719andlfMtype8709

8-poleroundsocket pin configuration

1

4

2

3

5

678 1 24V–supply+

2 Relay1–centercontact3 Relay2–centercontact4 Relay1–normallyclosedcontact5 Relay1–normallyopencontact6 24V–supplyGND7 Relay2–normallyopencontact8 Relay2–normallyclosedcontact

lfctype8719:socketsuB-hd15-pole

pin configuration

109876

1

432

51514131211

11) Set-pointvalueinput+21) Set-pointvalueinputGND31) Actualvalueoutput+4 Binaryinput25 12Voutput(forinternaluseonly)6 RS232TxD(directconnectiontoPC)7 Binaryinput1

8 DGND(forbinaryinputs)

9 forinternaluseonly(donotuse!)10 12Voutput(forinternaluseonly)11 12Voutput(forinternaluseonly)12 Binaryinput3131) ActualvalueoutputGND14 RS232RxD(directconnectiontoPC)15 DGND(forRS232interface)

lfMtype8709:socketsuB-hd15-pole

pin configuration

109876

1

432

51514131211

1 notused2 notused31) Actualvalueoutput+4 Binaryinput25 12Voutput(forinternaluseonly)6 RS232TxD(directconnectiontoPC)7 Binaryinput18 DGND(forbinaryinputs)9 forinternaluseonly(donotuse!)10 12Voutput(forinternaluseonly)11 12Voutput(forinternaluseonly)12 Binaryinput3131) ActualvalueoutputGND14 RS232RxD(directconnectiontoPC)15 DGND(forRS232interface)

Pin assignment LFC Type 8719 and LFM Type 8709Table 1:

1) In the field bus version the connections 1, 2, 3 and 13 are not used.

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pinassignmentlfctype8718andlfMtype8708

lfctype8718:plugsuB-d15-pole

pin configuration

12345678

9101112131415

1 Relay–Normallyclosedcontact2 Relay–Normallyopencontact3 Relay–Centrecontact4 GNDfor24Vsupplyandbinaryinputs5 24V–supply+6 8Voutput(forinternaluseonly)72) Set-pointvalueinputGND82) Set-pointvalueinput+92) ActualvalueoutputGND102) Actualvalueoutput+11 DGND(forRS232)12 Binaryinput113 Binaryinput214 RS232RxD(withoutdriver)15 RS232TxD(withoutdriver)

lfMtype8708:plugsuB-d15-pole

pin configuration

12345678

9101112131415

1 Relay–Normallyclosedcontact2 Relay–Normallyopencontact3 Relay–Centrecontact4 GNDfor24Vsupplyandbinaryinputs5 24V–supply+6 8Voutput(forinternaluseonly)7 notused8 notused92) ActualvalueoutputGND102) Actualvalueoutput+11 DGND(forRS232)12 Binaryinput113 Binaryinput214 RS232RxD(withoutdriver)15 RS232TxD(withoutdriver)

Pin assignment LFC Type 8718 and LFM Type 8708Table 2:

2) In the field bus version the connections 7 – 10 are not used.

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pinassignmentoffieldbuslfctypes8718,8719andlfMtypes8708,8709

prOfiBusdp

socketM12,B-coded(dpv1max.12Mbaud)

pin configuration

4

23

5

1

1 VDD2 RxD/TxD–N(Acable)3 DGND4 RxD/TxD–N(Bcable)5 notused

devicenetorcanopen

M12plug

pin configuration

4

23

5

1

1 Shielding2 notused3 DGND4 CAN_H5 CAN_L

Pin assignment of field bus LFC Types 8718, 8719 / LFM Types 8708, 8709Table 3:

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Operation and function

OperaTiOnandfuncTiOn8.


Warning!

riskofinjuryfromimproperoperation!

Improperoperationmayresultininjuriesaswellasdamagetothedeviceandtheareaaroundit.

Theoperatingpersonnelmustknowandhaveunderstoodthecontentsoftheoperatinginstructions.•

Observethesafetyinstructionsandintendeduse.•

Onlyadequatelytrainedpersonnelmayoperatetheequipment/thedevice.•

Operationofthelfc/lfM8.2.

TheLFC/LFMisoperatedbymeansofanaloguestandardsignalsorfieldbuscommunicationaswellasbinaryinputs.Foroperatingandstatusdisplays3or4LEDsarealsousedasbinaryoutputs.

Thereisalsoaserialinterface(RS232)viawhichaconnectiontoaPCcanbeestablished,e.g.usingthe“MassFlowCommunicator”software.

selectingthestandardsignals/assigningthebinaryinputs•

Therequiredconfigurationofthestandardsignaltypeaswellastheassignmentofthebinaryinputscanbespecifiedonorderplacementorcanbeconfiguredviathe“MassFlowCommunicator”software(seealsoChapter10.1.3. Mass Flow Communicator (PC software)).

ledassignment/assigningbinaryoutputs•

TheLEDassignment(exceptthePowerandtheErrorLED)aswellastheassignmentofthebinaryoutputscanalsobeconfiguredviathe“MassFlowCommunicator”PCsoftware(seealsoChapter10.1.3. Mass Flow Communicator (PC software)).

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leds8.2.1.

3or4LEDsareusedforoperatingandstatusdisplays.

standardassignmentoftheleds:

ledstatus description

Power(green) lit Thedeviceisconnectedtothepowersupply.

flashing Autotunefunctionisactive.

Communication(yellow3))

lit Thedevicecommunicatesviathefieldbusortheserialinterface(RS232).

Limit(y)(blue4)) lit LFC:Indicatesthattheactuatingvariableoftheproportionalvalvehasalmostreached100%.Inpracticethisusuallymeansthatthepressureonthecontrollerisnotadequatetoreachtherequiredflow-rate.

LFM:Indicatesthattheactualvaluehasalmostreachedthenominalflow-rate.

flashing ThedeviceisinanoperatingstateotherthancontrolledoperationortheAutotunefunction.

Error(red) lit Notaseriousfault,e.g.Autotunefunctionnotconcludedsuccessfully.

flashingSeriousfault,e.g.sensorbreak,defectiveinternalpowersupplyvoltageortoohighoperatingpressure.

3) not available for analogue version of 8708 / 87184) not available for bus version of 8708 / 8718

Standard assignment of the LEDsTable 4:

inputs/Outputs8.2.2.

set-pointvalueinput(analogueversionlfconly)

Theset-pointvalueinputisusedtospecifytheanalogueflow-ratebymeansofastandardsignal.

actualvalueoutput(analogueversionlfc/lfMonly)

Theactualvalueoutput,usesastandardsignaltorepresentthecurrentflow-rate.

Busconnection(fieldbusversionlfc/lfMonly)

Set-pointandactualvaluesarereceivedorsignalledbackindigitalformviathefieldbus.ItispossibletoselectbetweenPROFIBUSDP,DeviceNetandCANopenconnection(seesupplementtotheoperatinginstructionsforfieldbusdevices).

Binaryinputs

Ifthebinaryinputsareactivated,differentoperationscanberunontheLFC/LFM,andthelattercanbeswitchedtoaspecificoperatingmode.ActivationoccursbyconnectingtheparticularbinaryinputtoDGNDforatleast0.5s(forbinaryinputs).

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possiblebinaryinputfunctions

function description

ActuateAutotune StartofAutotunefunctionforoptimizationofthecontrolparameterstotheconditionsavailableinthesystem,descriptionseeChapter8.3. Functions of the LFC / LFM.

Switchtocharacteristic2 ThecalibrationcurvesavedunderGas2aswellasusingallparam-etersenteredthere.

Resettotalizer Theintegratedtotalizer(quantityintegrator)isresetto0.

Startset-pointvalueprofile Startofthesavedset-pointvalueprofile,descriptionseeChapter8.3. Functions of the LFC / LFM.

Controlmode Switchtocontrolmodeforthesystematicopeningoftheintegratedproportionalvalve,descriptionseeChapter8.3. Functions of the LFC / LFM.

Correctsafetyvalue5) Correctthesafetyvaluestoredinthedeviceasaflow-rateset-pointvalue.Theflow-rateset-pointvalueappliedanalogicallyortransmittedbythefieldbusisignoredinthiscase.

Closevalvecompletely5) Valveclosedcompletely.Theflow-rateset-pointvalueisignoredinthiscase.

Openvalvecompletely5) Valveopenedcompletely.Theflow-rateset-pointvalueisignoredinthiscase.

5) The operating principle of the binary input (active / inactive) can be selected for these functions

Binary input functionsTable 5:

standardassignmentofthebinaryinputs:

input configuration

Binaryinput1 LFC:ActuateAutotune

LFM:unused

Binaryinput2 LFC:Openvalvecompletely

LFM:unused

Binaryinput36) unused

6) not available for 8718 / 8708

Standard assignment of the binary inputsTable 6:

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Binaryoutputs

TheLFC/LFMfeaturebinaryoutputstoindicateoperatingstates,andlimitvalueswhichexceedmaximum/dropbelowminimumorfaults.

possiblebinaryoutputfunctions

function description

unused Nofunctionisassignedtothebinaryoutput.

Poweron Thepowersupplyison.

Autotuneactive TheAutotunefunctionisactive.

Gas1or2active Thecalibrationcurve1or2iscurrentlyselected.

User-definedcalibrationactive Thedeviceoperatesatthecalibrationadjustedbycustomer.

Binaryinput1,2or3active Binaryinput1,2or3isset.

Activatebinaryoutputbyfieldbus Thestatusofthebinaryoutputsisspecifiedviathefieldbusortheserialinterface.

Correctsafetyvalueactive Thesetsafetyvaluehasbeencorrected.

Set-pointvalueprofileactive Theset-pointvalueprofilestoredinthedevicehasbeencorrected.

Controlmodeactive Thecontrolmodeisactive,i.e.thespecifiedset-pointvalueisoutputeddirectlyasanactuatingvariableoftheproportionalvalve.

Closevalvecompletelyactive Theclosevalvecompletelyfunctionisactivated.

Openvalvecompletelyactive Theopenvalvecompletelyfunctionisactivated.

Defectivepowerrequirement Thepowerrequirementofthedeviceismonitored.Ifthisvalueisoutsidedefinedlimits,thisfunctionisactuated.Atoohighortoolowpowerrequirement,mayforexample,indicateadefectivedevice.

Defectiveinternalpowersupply Theoperatingvoltageofthedeviceismonitored.Ifthedefinedlimitsexceedthemaximumordropbelowtheminimum,thisfunctionisactuated.

Defectivepowersupplyofthesensor Thepowersupplyvoltageofthesensorismonitored.Ifthedefinedlimitsexceedthemaximumordropbelowtheminimum,thisfunctionisactuated.

Defectivedatastorage Ifdatastorageisinthenon-volatilememoryofthedevice,afaulthasoccurred.

Sensorfault Thedeviceisabletodetectadefectivesensorviaaself-test.Ifthisisthecase,thisfunctionisactivated.

MFIfault Thefieldbusmodule(MFI)isdefectiveorincorrectlyequipped.Fieldbuscommunicationisnotpossible.

xlimit Theactualvaluehasexceededordroppedbelowafreelyadjustablelimitvalue.

wlimit Theset-pointvaluehasexceededordroppedbelowafreelyadjustablelimitvalue.

y2limit Theactuatingvariablehasexceededordroppedbelowafreelyadjustablelimitvalue.

Totalizerlimit Thetotalizerhasexceededordroppedbelowafreelyadjustablelimitvalue.

Binary output functionsTable 7:

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standardassignmentofthebinaryoutputs:

Output configuration

Binaryoutput1 Limit(y)

Binaryoutput27) Error(forseriousfault,e.g.sensorbreakordefectiveinternalpowersupply)

7) not available for 8718 / 8708

Standard assignment of the binary outputsTable 8:

8.3. functionsofthelfc/lfM

TheLFC/LFMcanadoptdifferentoperatingstates:

Overviewofoperatingstates

Operatingstate canbeinterruptedorendedby

displayonledsforstandardsetting

attainmentofoperatingstateviabinaryinput(ifconfigurable)

Standardcontrolmode

Autotunefunction•

Safetyfunction•

Set-pointvalueprofile•

Controlmode•

PowerLED(green)islit -

Autotunefunction Safetyfunction•

Devicereset•

PowerLED(green)flashes

Activationforatleast0.5swhenbinaryinputactive(permanentinputactivationleadstoafunctionrestart)

Safetyfunction – LimitLED(blue)flashes Aslongasactive

Set-pointvalueprofile

Autotunefunction•

Safetyfunction•

Devicereset•

LimitLED(blue)flashes Activationforatleast0.5swhenbinaryinputactive(permanentinputactivationleadstoafunctionrestart)

Controlmode Autotunefunction•

Safetyfunction•

Devicereset•

LimitLED(blue)flashes Aslongasactive

Operating statesTable 9:

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standardcontrolmode8.3.1.

TheLFC/LFMisinthisoperatingstateimmediatelyafterthedeviceisswitchedon,afterabriefinitialisationphase.ThegreenPowerLEDislit.

Theflow-rateiscorrectedfortheLFCtothespecifiedset-pointvalueatahighdynamic.Malfunctions,e.g.duetopressurechanges,arequicklycounterbalancedbyacorrespondingadjustmentoftheproportionalvalveposition.

Theset-pointvalueisspecifiedinthisoperatingstatedependingonthedeviceversionviatheanalogueinput(standardsignalinput)orthefieldbus.

Thecontrollerparametersaresetinsuchawaythatset-pointvaluechangesoractuatingvariablesarecorrectedasquicklyaspossiblewithoutappreciableovershootoccurring.

Theactualflow-ratevaluecanbereaddependingonthedeviceversionviatheanalogueoutput(standardsignaloutput)orthefieldbus.

Pleasenote!ifthebluelimit(y)ledlightsup,thismeans

forthelfc• thecontrolsignaloftheproportionalvalveisapproachingthe100%limit.Thecauseisusually -atoolowpressuredifferenceviatheLFC,

e.g.duetoaninadequatepressuresupplyor

-aheavilysoiledfilter.

Thismaycausethespecifiedset-pointvaluenottobereachedandresultinapermanentpositivecontroldeviation(w–x).

forthelfM•thecurrentflow-rateisapproachingthenominalflow-rateorhasexceededit.Ifthenominalflow-rateisgreatlyexceeded,thismaycausetheoutputflow-ratetodeviatefromtheactualflow-rate.

togiveanexternalresponsetothedeviations,abinaryoutputisswitched.

autotunefunction8.3.2.

Aprerequisitefortheautomaticadjustmentofthecontroller,totheconditionsofthesystem,isthattypicalpressureconditionsprevail.

ActivatetheAutotunefunctionbybrieflyactuating(>0.5s)thebinaryinput1.→

TheAutotunefunctionrunsautomatically.

WhiletheAutotunefunctionisrunning,thegreenPowerLEDflashes.

Warning!

Whiletheautotunefunctionisrunning,notethefollowing:

Differentflow-ratechangesoccur.

ThepowersupplyoftheLFCmustnotbeswitchedoff.•

Thesupplypressureshouldbekeptconstant.•

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WhiletheAutotunefunctionisrunning,theLFCisnotcontrolling.

Theproportionalvalveiscontrolledaccordingtoaninternallyspecifiedprofile,resultinginflow-ratechanges.Therebyseveralcontrolparametersareadjustedtotheconditionspresentinthesystem.

Theseparametersaretransferredintothenon-volatilememoryofthedeviceattheendofasuccessfullyrunAutotunefunction.

WhentheAutotunefunctionends,theLFCreturnstothepreviousoperatingstate.

EachLFChasrunthoughtheAutotunefunctionduringthefinalinspectioninthefactory,attheoperatingpressureindicatedinthecalibrationprotocolandwiththecalibrationfluid.

Therefore,there-actuationofthisfunctionisnotessentialforareliablecontrolledoperationinthesystem.

However,theAutotunefunctionshouldbeactivatedif

thepressureconditionsinthesystemhavechangedsignificantly.•

thecalibrationfluiddoesnotcorrespondwiththeoperatingfluid.•

safetyfunction8.3.3.

Thisfunctioncanbeactivatedorresetdependingonthedeviceconfigurationviaabinaryinputorfieldbus.

Inthisoperatingstatethedevicebehavesasinstandardcontrolmode.However,anexternalset-pointvalueisignoredandadefinedsafetyvalue(standardsetting:0%,canbechangedwith“MassFlowCommunicator”PCsoftware)isusedastheset-pointvalue.

set-pointvalueprofile8.3.4.

Thisfunctioncanbeactivatedorresetdependingonthedeviceconfigurationviaabinaryinputorfieldbus.

Inthisoperatingstatethedevicebehavesasinthestandardcontrolmode.However,theexternalset-pointvalueisignoredandapreviouslydefinedchronologyofupto30flow-ratevaluesisusedastheset-pointvalue(canbeconfiguredwith“MassFlowCommunicator”PCsoftware).

Whentheset-pointvalueprofilehasrunthrough,thedevicedropsbacktothepreviousoperatingstate,providedthisoperatingstatewasresetbyabinaryinputduringactivation.

controlmode8.3.5.

Thisfunctioncanbeactivatedorresetdependingonthedeviceconfigurationviaabinaryinputorfieldbus(canbeconfiguredwith“MassFlowCommunicator”PCsoftware).

Inthisoperatingstatetheset-pointvalueisusedastheoutputvariableforthevalvepulse-dutyfactoroftheproportionalvalve,e.g.set-pointvalue10%→Valvepulse-dutyfactor=10%.

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Maintenance, Troubleshooting

MainTenance,TrOuBleshOOTing9.


Danger!






Warning!

riskofinjuryfromimpropermaintenance!

Maintenancemaybecarriedoutbyauthorizedtechniciansonlyandwiththeappropriatetools!•

riskofinjuryfromunintentionalactivationofthesystemandanuncontrolledrestart!

Securesystemfromunintentionalactivation.•

Followingmaintenance,ensureacontrolledrestart.•

MaintenanceWork9.2.

TheLFC/LFMismaintenance-freeduringoperation,accordingtotheinformationindicatedinthismanual.Aroutinerecalibrationisnotrequired.

CauTion!

riskofinjuryfromfunctionimpairmentanddevicefailureifthedeviceisopened!

Insidethedeviceareelementstoconditiontheflowandmeasuretheflow-rate.Itispermittedtoenterthedevice,forexampleforcleaning,onlyasdescribedinChapter9.2.1. .

Extensivedeviceinterventioncausesachangetothesensorsignal,requiringarecalibrationatthefactory.

Donotopenthedevice.•

Cleaningotherthanthatdescribedinchapter• 9.2.1. andrecalibrationmaybeperformedbythemanufactureronly.

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9.2.1. Maintenancewhenoperatingwithhighlysoiledfluids

Iflargerquantitiesofparticleswererecordedafterprolongedoperationwithsoiledfluid,thestainlesssteelmeshfilterdisccanbecleanedorreplacedandtheorificepipecanbecleaned.

➆ O-ring6x1.5➅ Orificepipe

➄ Stainlesssteelmeshfilterdisc➃ O-ring12x2

➂ O-ring17x1.5➁ Inputflangeplate

➀ M3x12bolt

Guidepinoftheorificepipe

Fig. 11: Maintenance, Cleaning

procedure:

Togainaccesstothestainlesssteelmeshfilterdisc,detachtheinputflangeplate→ ➁(seeFig. 11: Maintenance, Cleaning).

Takeoutstainlesssteelmeshfilterdiscandorificepipe.→

Cleanstainlesssteelmeshfilterdisc/orificepipe.→Therearevarioustypesofsuitablecleaningagents,e.g.distilledwater(nottapwater),acetone,isopropanolorcompressedair.

Aftercleaning,thepartsmustdry.→

Re-insertpartsinthecorrectsequenceandposition(see→ Fig. 11: Maintenance, Cleaning).

•Theorificepipe ➅mustbeinsertedinsuchawaythattheguidepinofthepipeisinsertedintothecorre-spondingboreinthebaseblock.

•Wheninserted,thefinemeshofthestainlesssteelmeshfilterdisc➄mustfacetheinputflangeplate➁.

Sparepartsseechapter10.2. Spare parts.

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cleaningandrecalibrationatthefactory9.2.2.

Iftheorificeisexcessivelysoiledordamaged,thedevicemaydeviatesignificantlyfromtheflow-rate.Itmustthenbereplacedandrecalibratedatthefactory.

noTe!

importantinformationfortheproblem-freefunctioningofthedevice!

Arecalibrationshouldbecarriedoutatthefactoryonly,asverypreciseflow-ratestandardsanddigitalcommunicationarerequired.

Malfunctions9.3.

problem possiblecause remedialaction

PowerLEDisnotlit Nopowersupply. Checktheelectricalconnections.

PowerLEDflashes TheAutotunefunctionisactive. Seechapter8.3. Functions of the LFC / LFM.

PowerLEDgoesoutperiodically

Thepowersupplycollapsesperiodically–Thedeviceimplementsareset.

Selectpowersupplywithadequatepower.

Thelossesintheconnectioncablearetoohigh.

Increasecablecross-section.

Reducelinelength.

Limit(y)LEDislit LFC:theactuatingvariableofthevalvehas(almost)reached100%.Theset-pointvaluecannotbecorrected.

Increaseoperatingpressure(observemaximumpermittedsupplypressure).

Checklineresistanceandifrequiredreduce.

Checkequipmentdesign.

Checkthefilterinstalledinthelineandifrequiredclean.

LFM:theactualflow-ratevaluehas(almost)reachedorexceededthenominalflow-rate.

Reduceflow-rate.

Limit(y)LEDflashes ThedeviceisinanoperatingstateotherthanstandardcontrolledoperationortheAutotunefunction.

Seechapter8.3. Functions of the LFC / LFM.

ErrorLEDislit Thisisnotaseriousfault,e.g.thelastAutotunefunctionwasnotconcludedsuccessfully.

RepeatAutotunefunctionorremovethefaultbyperformingareset.

ErrorLEDflashes Theresidualrippleofthepowersupplyvoltageistoohigh.

Useapowersupplywithasmoothoutputvoltageattherequiredpower.

Aseriousfaulthasoccurred,e.g.brokensensororfaultintheinternalpowersupply.

Returndevicetothemanufacturertohavethefaultrepaired.

Thesensorwasoperatedabovethepermittedmaximumoperatingpressure.

Reduceoperatingpressure.


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problem possiblecause remedialaction

Noflow-rateavailable Theset-pointvalueisbelowthelimitforthezeropointshut-off.

Increaseset-pointvalueto>10%ofthenominalflow-rate.

Thedeviceisinanoperatingstateotherthanstandardcontrolledoperation.

Checkoperatingstate,seealsoChapter8.3. Functions of the LFC / LFM.

Thepipelineshavebeensizedtoolargeormaynotyethavebeencompletelydeaerated.

Deaeratelines.

Changepipesize.

Actualvaluefluctuates FEconnectionnotcorrect. ConnectFEtotheearthingpoint(asshortaspossible,wireatleast2.5mm²).

Thecontrolleriscontinuouslycorrectingmalfunctionsinanunstablepressuresupply,e.g.bypumping.

Connectsuitablepressurecontrollerupstream.

Installbuffertanktoabsorbpressurefluctuations.

Theresidualrippleofthepowersupplyvoltageistoohigh.

Usepowersupplywithasmoothoutputvoltageattherequiredpower.

Set-pointvalue=0%,flow-ratestillavailable

Theoperatingpressureisabovethemaximumoperatingpressureofthevalve.

Reducetheoperatingpressure.


Set-pointvalue=0%,valveisclosed,noflow-rateavailable;however,actualvalueoutputindicatesalowflow-rate

Themountingpositionofthedeviceisincorrect.

InstallLFCinthecalibratedmountingpositionandrunanAutotunefunctiontoadjusttotheoperatingconditions.

Afluidisusedotherthanthatdesignatedbythecalibration.

Returndevicetothemanufacturerforrecalibrationfortheoperatingfluid.

Set-pointvalueisnotreached

Thefilterisblocked. Cleanorreplacefilter.Theprimarypressureistoolow. Increaseprimarypressuretocalibration

pressure.Thebackpressureistoohigh. Checksystemcomponentsforsoilingon

outputsideandifrequiredclean.

MalfunctionsTable 10:

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Accessories / Spare parts

accessOries/spareparTs10.

CauTion!

riskofinjuryand/ordamagebytheuseofincorrectparts!

Incorrectaccessoriesandunsuitablesparepartsmaycauseinjuriesanddamagethedeviceandsurroundingarea.

UseoriginalaccessoriesandoriginalsparepartsfromBürkertonly.•

accessories10.1.

InthismanualtheBürkertaccessoriesindicatedbelowarerecommendedfortheproblem-freeoperation,mainte-nanceandrepairofthedevice.

electricalaccessories10.1.1.

types article Ordernumber

8719,8709 8-poleroundplug(solderedconnection) 918299

8-poleroundplugwith5mcable,one-sidedfabricated 787733

8-poleroundplugwith10mcable,one-sidedfabricated 787734

SUB-HD15-poleplugwith5mcable,one-sidedfabricated 787735

SUB-HD15-poleplugwith10mcable,one-sidedfabricated 787736

RS232adapterforconnectiontoaPCinconjunctionwithanextensioncable(orderno.917039)

654757

ExtensioncableforRS2329-polesocket/plug2m 917039

RS485adapter 658499

USBadapter 670696

Configurationsoftware(MassFlowCommunicator) Downloadfromwww.buerkert.com

8718,8708 Sub-D15-poleplugsolderedconnection 918274

Sub-DhoodforSub-Dsocket,withscrewlockingdevice 918408

Sub-D15-poleplugwith5mcable,one-sidedfabricated 787737

Sub-D15-poleplugwith10mcable,one-sidedfabricated 787738

RS232adapterforconnectiontoaPC 654748

PCextensioncableforRS2329-polesocket/plug2m 917039

RS485adapter 654538

USBadapter 670639

Configurationsoftware(MassFlowCommunicator) Downloadfromwww.buerkert.com

Electrical accessoriesTable 11:

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fluidaccessories10.1.2.

Ingeneral,Bürkertoffersscrew-inconnectionswithimperialscrew-inthreadonly.

Theflangeplatesusedtherefore,haveimperialscrew-inthreads.

Thepipeconnectionsidecanbeorderedbothinmetricandimperialsizes.

screw-inthreadinaccordancewithDINISO228/1

pipeØ

Material Ordernumber OrdernumberSealingring

G1/4 6mm VA 901538 901575

G1/4 8mm VA 901540 901575

G1/4 1/4" VA 901551 901579

G1/4 3/8" VA 901553 901579

Fluid accessoriesTable 12:

caution!Asealingringmustbeorderedforeachscrewjoint!

OtheraccessoriesforthefluidconnectionofanLFC/LFMcanbefoundunderType1013intheBürkertaccessoriescatalogue.

10.1.3. Massflowcommunicator(pcsoftware)

The"MassFlowCommunicator"PCprogramisdesignedforcommunicationwiththedevicesfromtheMassFlowControllerandLiquidFlowControllerfamiliessuppliedbyBürkert.Itisusedtoconfigure,aswellasdisplayandwritevariousparameters.

TheprogramrunsontheWindowsplatformandrequiresaserialinterface(RS232)forcommuncationwiththeLFC/LFM.

Thisprogramcanbeusedtoconfiguredifferentsettingsonthedevices:

Readoutinformationspecifictothedevice•

Changetheassignmentofbinaryinputsandoutputs•

ChangetheLEDfunctionassignment•

Activatevariousfunctions•

Changethedynamicproperties•

Adetaileddescriptionandpreciselistingoftheoperationprocedureofthe"MassFlowCommunicator"softwarecanbefoundinthesoftwaredocumentation.

Downloadthesoftwarefrom:www.burkert.com

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47


documentation10.1.4.

designation identificationnumber

Ordernumber

Quickstart 805788 Printedversion

805788

Operatinginstructions 805765 AsdataonCD

804625Supplementtotheoperatinginstructionsforfieldbusdevices 804553

ContaminationDeclaration 806075

DocumentationTable 13:

10.2. spareparts

Forthetypes8708,8718,8709and8719therearedifferentsparepartsetsaccordingtothesealmaterial.

sealmaterial*) designation Ordernumber

EPDM,DA SealsetwithEPDMfilter 208579

FKM SealsetwithFKMfilter 208580

FFKM SealsetwithFFKMfilter 208582

Spare-part setsTable 14:

*) Observethespecificationsontheratingplateforthesealmaterial!

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Shutdown

shuTdOWn11.


Danger!




Ifcontactismadewiththeoperatingfluidanditsreactionproducts,includinginvaporform(touching,inhaling),thereisanacuteriskofinjury.





Warning!

riskofinjuryfromimproperremoval!

Removalmaybecarriedoutbyauthorizedtechniciansonlyandwiththeappropriatetools!•

removalofthelfc/lfM11.2.

procedure:

Relievesystempressure.→

Switchoffpowersupply.→

Removeelectricalconnections.→

Removefluidconnections.→

EmptyLFC/LFM.→

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Packaging, Storage, Transport

packaging,sTOrage,TranspOrT12.

12.1. packing,Transporting

noTe!

transportdamage!

Inadequatelyprotectedequipmentmaybedamagedduringtransport.

Removeallcables,connections,separatefiltersandinstallationmaterial.•

Cleanandemptycontaminateddevices.•

Protectfluidconnectionsfromdamagebyfittingprotectivecapsandseal.•

Packdeviceintwosuitableandsealableprotectivefilmbags.•

Duringtransportationprotectthedeviceagainstwetanddirtinshock-resistantpackaging.•

Avoidexceedingordroppingbelowtheallowablestoragetemperature.•

storing12.2.

noTe!

incorrectstoragemaydamagethedevice.

Draindevicepriortoprolongedoperatingpauses!•

Storethedeviceinadryanddust-freelocation!•

Storagetemperature:-10–+70°C.•

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Returning the device

reTurningThedevice13.

Toreturnadevicealreadyinuse,youwillrequireanauthorizationnumber!

IfyouwouldliketoreturnadevicealreadyinusetoBürkert,proceedasfollows:

CompletetheContaminationDeclarationincludedwiththeoriginaldocuments.→

Sendthedeclarationtotheaddressindicatedontheform.→Bürkertwillfaxore-mailyouanauthorizationnumbertoreturnthedevice.

PackthedeviceinconsiderationoftheinformationinChapter→ 12.1. Packing, Transporting.

ReturnthedevicetoBürkertquotingthisauthorizationnumberandtheContaminationDeclaration.→

Address:

BürkertFluidControlSystemsCorporateQuality/ComplaintManagementChr.-Bürkert-Str.13-17D-74653IngelfingenTel.+49(0)7940-1091599Fax+49(0)7940-1091490E-mail:[email protected]

noworkortestswillbecarriedoutonthedeviceuntilthereisavalidcontaminationdeclaration.

TheContaminationDeclarationcanbedownloadedfromourHomepageorrequestedfromBürkertIngelfingen.

BürkertFluidControlSystemsSalesCenterChr.-Bürkert-Str.13-17D-74653IngelfingenTel.+49(0)7940-1091111Fax+49(0)7940-1091448E-mail:[email protected]

www.burkert.com Documentation OperatingInstructions Type Declarationoncontamination

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Disposal

dispOsal14.

Disposeofthedeviceandpackaginginanenvironmentallyfriendlymanner.→

noTe!

damagetotheenvironmentcausedbydevicecomponentscontaminatedwithfluids.

Observeapplicabledisposalandenvironmentalregulations.•

Observenationalwastedisposalregulations.

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Inhalt

1. dieBedienungsanleitung.................................................................................................................................................56

1.1. darstellungsmittel..............................................................................................................................................................56

2. BestiMMungsgeMässeverWendung.......................................................................................................................57

2.1. Beschränkungen.................................................................................................................................................................57

2.2. vorhersehbarerfehlgebrauch.....................................................................................................................................57

3. grundlegendesicherheitshinWeise.....................................................................................................................58

4. allgeMeinehinWeise..............................................................................................................................................................60

4.1. lieferumfang.........................................................................................................................................................................60

4.2. gewährleistung....................................................................................................................................................................60

4.3. Warenzeichen........................................................................................................................................................................60

4.4. informationeniminternet...............................................................................................................................................61

5. systeMBeschreiBung............................................................................................................................................................62

5.1. allgemeineBeschreibung..............................................................................................................................................62

5.1.1. LFC,LiquidFlowController..................................................................................................................62

5.1.2. LFM,LiquidFlowMeter.........................................................................................................................62

5.2. funktionen..............................................................................................................................................................................62

5.2.1. FunktiondesLFC,LiquidFlowController.........................................................................................62

5.2.2. FunktiondesLFM,LiquidFlowMeter................................................................................................63

5.2.3. FunktiondesSensors.............................................................................................................................63

5.2.4. Regelelektronik........................................................................................................................................64

5.3. proportionalventil................................................................................................................................................................66

6. technischedaten.....................................................................................................................................................................67

6.1. kennzeichnungenamgerät.........................................................................................................................................67

6.1.1. BeschriftungdesTypschilds/Kalibrierschilds.................................................................................67

6.2. Betriebsbedingungen.......................................................................................................................................................68

LFC, Liquid Flow Controller Typ 8718, 8719

LFM, Liquid Flow Meter Typ 8708, 8709

Typ8718,8719/8708,8709

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6.3. konformitätmitfolgendennormen..........................................................................................................................68

6.4. Mechanischedaten...........................................................................................................................................................69

6.5. einbaumaße...........................................................................................................................................................................70

6.6. fluidischedaten..................................................................................................................................................................76

6.7. elektrischedaten................................................................................................................................................................76

7. installatiOnundinBetrieBnahMe.............................................................................................................................78

7.1. sicherheitshinweise..........................................................................................................................................................78

7.2. Maßnahmenvorderinstallation.................................................................................................................................78

7.3. reihenfolgederauszuführendenarbeitsschritte.............................................................................................79

7.4. fluidischeinstallation.......................................................................................................................................................79

7.5. elektrischeinstallation.....................................................................................................................................................80

7.5.1. EinstellenderBusadressebeiGerätenohneDrehschalterzurAdresseinstellung.................81

7.5.2. EinstellenderBusadressebeiGerätenmitDrehschalterzurAdresseinstellung(Typen8718/8708)..............................................................................................................................81

7.5.3. Anschlussbelegung................................................................................................................................82

8. BedienungundfunktiOn...................................................................................................................................................85


8.2. Bedienungdeslfc/lfM.............................................................................................................................................85

8.2.1. LEDs...........................................................................................................................................................86

8.2.2. Ein-/Ausgänge.........................................................................................................................................86

8.3. funktionendeslfc/lfM............................................................................................................................................89

8.3.1. Standard-Regelbetrieb..........................................................................................................................90

8.3.2. Autotune-Funktion...................................................................................................................................90

8.3.3. Sicherheitsfunktion..................................................................................................................................91

8.3.4. Sollwert-Profil...........................................................................................................................................91

8.3.5. Steuerbetrieb............................................................................................................................................91

9. Wartung,fehlerBeheBung.............................................................................................................................................92


9.2. Wartungsarbeiten................................................................................................................................................................92

9.2.1. WartungbeiBetriebmitstarkverschmutztenMedien....................................................................93

9.2.2. WerkseitigeReinigungundNeukalibrierung....................................................................................94

9.3. störungen...............................................................................................................................................................................94

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10. zuBehör/ersatzteile.........................................................................................................................................................96

10.1. zubehör....................................................................................................................................................................................96

10.1.1.ElektrischesZubehör..............................................................................................................................96

10.1.2.FluidischesZubehör...............................................................................................................................97

10.1.3.MassFlowCommunicator(PC-Software)........................................................................................97

10.1.4.Dokumentationen....................................................................................................................................98

10.2. ersatzteile...............................................................................................................................................................................98

11. ausserBetrieBnahMe............................................................................................................................................................99


11.2. demontagedeslfc/lfM...........................................................................................................................................99

12. verpackung,lagerung,transpOrt...................................................................................................................... 100

12.1. verpacken,transportieren.......................................................................................................................................... 100

12.2. lagern.................................................................................................................................................................................... 100

13. rücksendung............................................................................................................................................................................ 101

14. entsOrgung................................................................................................................................................................................ 102

Typ8718,8719/8708,8709

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Die Bedienungsanleitung

dieBedienungsanleiTung1.

DieBedienungsanleitungbeschreibtdengesamtenLebenszyklusdesGerätes.BewahrenSiedieseAnleitungsoauf,dasssiefürjedenBenutzergutzugänglichistundjedemneuenEigentümerdesGeräteswiederzurVerfügungsteht.

Warnung!

dieBedienungsanleitungenthältwichtigeinformationenzursicherheit!

DasNichtbeachtendieserHinweisekannzugefährlichenSituationenführen.

DieBedienungsanleitungmussgelesenundverstandenwerden.•

darstellungsmittel1.1.

geFahr!

Warntvoreinerunmittelbarengefahr!

BeiNichtbeachtungsindTododerschwereVerletzungendieFolge.•

Warnung!

Warntvoreinermöglicherweisegefährlichensituation!

BeiNichtbeachtungdrohenschwereVerletzungenoderTod.•

VorsiChT!

Warntvoreinermöglichengefährdung!

NichtbeachtungkannmittelschwereoderleichteVerletzungenzurFolgehaben.•

hinWeis!

Warntvorsachschäden!

BeiNichtbeachtungkanndasGerätoderdieAnlagebeschädigtwerden.•

bezeichnetwichtigeZusatzinformationen,TippsundEmpfehlungen,diefürIhreSicherheitunddieein-wandfreieFunktiondesGeräteswichtigsind.

verweistaufInformationenindieserBedienungsanleitungoderinanderenDokumentationen.

markierteinenArbeitsschritt,denSieausführenmüssen.→

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57

Bestimmungsgem�

Documents

Type 8718 / 8719 LFC, Liquid Flow Controller Type 8708 / 8709 LFM, Liquid Flow … · The actual flow-rate value supplied by the integrated sensor is available as an output, via a