Burkert 8742 User manual

Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 8742
Profibus
Analogue
Mass Flow Meter (MFM) / Mass Flow Controller (MFC)
Massendurchflussmesser (MFM) / Massendurchflussregler (MFC)
Débitmètre massique (MFM) / Régulateur de débit massique (MFC)

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert SAS, 2020
Operating Instructions 2004/00_EU-ML_00573731 / Original EN

3
Table of contents
8742 Profibus, 8742 Analogue
1 THE OPERATING INSTRUCTIONS ............................................. 5
1.1 Denitionofthetermproduct........................................ 5
1.2 AboutNamurandNamurRecommendationNE107 ..... 5
1.3 Symbolsused................................................................ 5
2 INTENDED USE .................................................................... 6
2.1 VariantwithATEXcertication....................................... 7
3 BASIC SAFETY INFORMATION............................................ 7
4 GENERAL INFORMATION .................................................... 9
4.1 Contact .......................................................................... 9
4.2 Warranty ........................................................................ 9
4.3 InformationontheInternet ............................................ 9
5 DESCRIPTION..................................................................... 10
5.1 Productvariants........................................................... 10
5.1.1 MassFlowMeter(MFM)................................... 10
5.1.2 MassFlowController(MFC)............................. 11
5.2 Productstatus-indicator .............................................. 12
5.3 Statusindicatoroftheeldbuscommunication .............. 13
5.4 Memorycard ............................................................... 13
5.5 büS-interface ............................................................... 13
5.6 Bürkert-Communicatorsoftware ................................. 14
5.7 ProportionalvalveofanMFC ...................................... 15
6 TECHNICAL DATA............................................................... 15
6.1 Conformity ................................................................... 15
6.2 Standards .................................................................... 15
6.3 Operatingconditions ................................................... 15
6.4 Markings ...................................................................... 16
6.4.1 Calibrationplate ............................................... 16
6.4.2 Typelabel ......................................................... 17
6.4.3 Additionalmarkings.......................................... 17
6.5 Mechanicaldata .......................................................... 17
6.6 Fluiddata..................................................................... 18
6.6.1 Qualityoftheoperatinguid ............................ 18
6.6.2 Pressureloss(MFM)......................................... 18
6.7 Electricaldata...................................................................... 20
6.7.1 Analoguevariant............................................... 20
6.7.2 Probusvariant....................................................... 21
6.8 Communicationinterface:PROFIBUS-DP-V1............. 21
7 INSTALLATION .................................................................... 22
7.1 Safetyinstructions....................................................... 22
7.2 Installationsteps.......................................................... 22
7.3 Additionaldocumentation ........................................... 22
7.4 Fluidinstallation........................................................... 22
7.4.1 ProductwithG-threadedpipeconnections ..... 22
7.4.2 ProductwithNPT-threadedconnections ......... 25
7.4.3 Productwithangeconnections...................... 26
8 ELECTRICAL INSTALLATION ............................................. 26
8.1 Safetyinstructions....................................................... 26
8.2 WiringtheAnaloguevariant......................................... 27
8.2.1 Digitalinput ...................................................... 29
8.2.2 Relayoutput ..................................................... 30
8.3 WiringtheProbusvariant........................................... 30
8.4 Connectingthefunctionalearth .................................. 31
English

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8742 Profibus, 8742 Analogue
9 START-UP............................................................................ 32
9.1 Safetyinstructions....................................................... 32
9.2 Start-up steps ............................................................. 32
10 OPERATION ........................................................................ 33
10.1Safetyinstructions....................................................... 33
10.2User-denedcalibration .............................................. 33
10.3OperatingmodesofanMFC ....................................... 33
10.4Normaloperatingmode(MFC) .................................... 34
10.4.1Probusvariant ................................................ 35
10.4.2Analoguevariant............................................... 35
10.5Optimisingthecontrolparameters(MFC) ......................... 35
10.6Specifyingthesourcegivingtheset-pointvalue
(MFC) ........................................................................... 36
10.7Zero-pointshut-o(MFC)............................................ 37
10.8Flushmode(ProbusMFC) ......................................... 37
10.9Set-pointvalueswithoutcommunication
(ProbusMFC)............................................................. 37
11 MAINTENANCE................................................................... 38
11.1Maintenanceforoperationwithheavilycontami-
nateduids .................................................................. 38
11.1.1Inspectingandcleaningthestainless
steelmesh-lter................................................ 39
11.2Cleaningandrecalibrationatthefactory..................... 39
11.3Replacingthememorycard ........................................ 40
12 TROUBLESHOOTING ......................................................... 41
12.1Troubleshootingiftheproductstatus-indicator
showsaproblem ......................................................... 41
12.2Troubleshootingofotherproblems.............................. 43
13 ACCESSORIES /SPARE PARTS......................................... 45
13.1Electricalaccessories .................................................. 45
13.2Compressionttingsforaproductwiththreaded
pipeconnections ......................................................... 45
13.3Meshlters .................................................................. 46
13.4Additionalsoftware...................................................... 46
14 DECOMMISSIONING.......................................................... 46
14.1Safetyinstructions....................................................... 46
14.2Dismantlingtheproduct .............................................. 47
15 TRANSPORT....................................................................... 47
16 STORAGE, DISPOSAL ........................................................ 48
17 RETURNING THE PRODUCT ............................................. 48
English

5
The Operating instructions
8742 Profibus, 8742 Analogue
1 THE OPERATING INSTRUCTIONS
The Operating Instructions describe the entire life cycle of the
product.PleasekeeptheOperatingInstructionsinasafeplace,
accessibletoallusersandanynewowners.
Important safety information.
PleasecarefullyreadtheOperatingInstructions.Paypar-
ticularattentiontothesections"Basicsafetyinformation"
and"Intendeduse".
▶ReadtheOperatingInstructions.Ifyoudonotunderstandthe
contentoftheOperatingInstructions,contactBürkert.
1.1 Denition of the term product
Theterm"product"asusedintheOperatingInstructions,refers
tooneorseveralofthefollowingdevices:
•aType8742ProbusMassFlowMeter(MFM)
•aType8742AnalogueMassFlowMeter(MFM)
•aType8742ProbusMassFlowController(MFC)
•aType8742AnalogueMassFlowController(MFC)
1.2 About Namur and Namur
Recommendation NE107
Standardscommitteeformeasurementandcontroltechnology
(NAMUR)isaninternationalassociationofusersofautomation
systemsfortheprocessindustry.
NAMURrecommendation(NE)107:self-monitoringanddiag-
nosisofelddevices.
1.3 Symbols used
DANGER
The symbol warns of an immediate danger.
▶Failuretoobservethewarningwillresultinfatalorserious
injuries.
WARNING
The symbol warns of a potentially dangerous situation.
▶Failuretoobservethewarningmayresultinseriousorfatal
injuries.
CAUTION
The symbol warns of a possible danger.
▶Failuretoobservethewarningmayresultinmoderateor
minorinjuries.
NOTICE
The symbol warns of damage to property.
▶Failuretoobservethewarningmayresultindamagetothe
deviceorsystem.
Thesymbolindicatesimportantadditionalinformation,
tipsandrecommendations.
ThesymbolreferstoinformationintheOperating
Instructions,orinotherdocuments.
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Intended use
8742 Profibus, 8742 Analogue
▶Designatesaninstructionforriskprevention.
→Designatesaworkstepthatyoumustcarryout.
Indicatesaresult.
MenuDesignatesatextofauserinterface.
2 INTENDED USE
Improper use of the product may be a hazard to people, nearby
equipment and the environment.
Type 8742ProbusMFMorType8742Analogue MFM is used
exclusively to measure the mass ow rate of clean and dry
gases.
Type 8742ProbusMFCorType8742Analogue MFC is used
exclusively to control the mass ow rate of clean and dry gases.
▶Observethedatainthecontractdocuments,intheOperating
Instructions,ontheTypelabelandonthecalibrationplate:
-additionaldata
-operatingconditions
-serviceconditions
▶OnlyusetheproductfortheuidsindicatedontheType
labelandinthecalibrationprotocol.
▶Onlyusetheproductindoors.
▶Onlyusetheproductuptoanaltitudeof2000m.
▶Onlyusetheproductwithexternalinstrumentsthattheproduct
manufacturerrecommends.
▶Onlyusetheproductwithcomponentsthattheproductman-
ufacturerrecommends.
▶Operatetheproductcarefullyandensureregularandprofes-
sionalmaintenance.
▶Operatetheproductonlyinperfectworkingorder.Ensure
appropriatestorage,transport,installationandcontrol.
▶Onlyusetheproductforitsintendedpurpose.
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Basic safety information
8742 Profibus, 8742 Analogue
2.1 Variant with ATEX certication
DANGER
Risk of explosion in the event of improper use of the product
in potentially explosive areas.
▶ObservethespecicationsoftheATEX-conformity
certicate.
▶ObservethespecicationsintheATEXsupplementforType
8742.Thesupplementisavailableatwww.burkert.com.
The ATEX certication is only valid if the product is used as
describedintheATEXsupplement.
Ifunauthorizedchangesaremadetotheproduct,thentheATEX
certicationbecomesinvalid.
3 BASIC SAFETY INFORMATION
Thissafetyinformationdoesnottakeintoaccountanycontin-
genciesoroccurrencesthatmayariseduringinstallation,use
andmaintenanceoftheproduct.
Theoperatingcompanyisresponsiblefortherespectofthelocal
safetyregulationsincludingforthepersonnelsafety.
Risk of injury that is due to pressure in the installation or in
the product.
▶Beforeworkingontheinstallationorproduct,cutthepres-
sure.Ventanddrainthepipes.
Risk of injury from electric shocks.
▶Beforeworkingontheinstallationorproduct,switchothe
power.Makesurethatnobodycanswitchthepoweron.
▶Observeallapplicableaccidentprotectionandallapplicable
safetyregulationsforelectricalequipment.
Burn hazard and re hazard that are due to hot surface of the
product.
▶Donottouchthehotsurfacewithbarehands.
▶Wearsafetyglovestotouchtheproduct.
▶Keeptheproductawayfromanyhighlyammablematerials
oruids.
Risk of injury that is due to escape of the uid.
▶Observeallapplicableaccidentprotectionandallapplicable
safetyregulationsrelatingtotheoperatinguidused.
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Basic safety information
8742 Profibus, 8742 Analogue
Various dangerous situations.
Toavoidpersonalinjury:
▶Donotoperatetheproductwithoutitsmeshlter.
▶Onlyoperatetheproductintheinstallationpositionthatis
givenonthecalibrationplate.
▶MakesuretheMFMoperating-pressureisnothigherthan
theoperatingpressurevalueontheproductdata-sheet.
▶MakesuretheMFCoperating-pressureisnothigherthanthe
tightsealingpressureoftheproportionalvalve.
▶Onlyusetheproductfortheuidspeciedastheoperating
uidinthecalibrationprotocol.
▶Onlyuseagentsthatarestablewiththeproductmaterialsfor
cleaninganddecontamination
Findthecompatibilitychartonourhomepage:
www.burkert.com
Intheeventofanyambiguitypleasecontactyourlocalsales
oce.
▶Do not make any modications to the product and do not
subjecttheproducttomechanicalstress.
▶Protecttheinstallationandtheproductfromaccidental
actuation.
▶Onlytrainedpersonnelmayperformtheinstallationworkand
themaintenancework.
▶Afteraninterruptionintheelectricalsupplyorintheuid
supply,ensureacontrolledrestartoftheprocess.
▶Observebestindustrypractice.
NOTICE
Components / assemblies at risk from electrostatic charges.
Theproductcontainselectroniccomponentswhicharesuscep-
tibletoelectrostaticdischarge(ESD).Contactwithelectrostati-
callychargedpersonsorobjectsendangersthesecomponents.
Intheworstcase,theywillbecomedefectiveimmediatelyorwill
failwhenenergized.
•Tominimiseorevenavoidanydamagecausedbyanelec-
trostaticdischarge,takealltheprecautionsdescribedinthe
EN61340-5-1.
•Donottouchanyoftheliveelectricalcomponents.
English

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General information
8742 Profibus, 8742 Analogue
4 GENERAL INFORMATION
4.1 Contact
Thenameofthemanufacturerisdisplayedasinsetwritingonthe
coverandthehousingoftheproduct.
Tocontactthemanufactureroftheproduct,usethefollowing
address:
BürkertSAS
RueduGiessen
F-67220TRIEMBACH-AUVAL
Theaddressesofourinternationalsalesocesareavailableon
theinternetat:www.burkert.com
4.2 Warranty
Thewarrantyisconditionaloncompliantuseoftheproductin
observanceoftheoperatingconditionsspeciedintheOper-
atingInstructions.
4.3 Information on the Internet
OperatingInstructionsanddatasheetsfortheproductcanbefound
onlineat:www.burkert.com
English

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Description
8742 Profibus, 8742 Analogue
5 DESCRIPTION
5.1 Product variants
5.1.1 Mass Flow Meter (MFM)
3
12
11
4
2
7
10
9
8
6
13
5
1
15
14
1. Electricalconnection:
-Probusvariant:5-pinM12femaleconnector,Bcoding
-Analoguevariant:5-pinM12femaleconnector,Acoding
2. Electricalconnection:5-pinM12maleconnector,Acoding
3. Possibleuidconnections:
•G-threadedconnectionsaccordingtoDINISO228/1
•NPT-threadedconnectionsaccordingtoASME/
ANSIB1.20.1
4. M4screwforfunctionalearthconnection
5. Baseblock
6. Flowdirection
7. Productstatus-Indicator.Theindicatoroperatesaccording
toNamurNE107.
8. Notused
9. Statusindicatoroftheeldbuscommunication
10.Notused
11. Cover
12. M3screw
13. büSinterfacefortheBürkert-Communicatorsoftware
14. Slotforthememorycard
15. Impactprotection-cover.Theimpactprotection-coveris
onlydeliveredwithanATEXvariant.
Fig. 1: Mass Flow Meter, Probus variant or Analogue variant
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11
Description
8742 Profibus, 8742 Analogue
5.1.2 Mass Flow Controller (MFC)
3
13
12
4
2
8
11
10
9
6
14
5
1
16
15
7
1. Electricalconnection:
-Probusvariant:5-pinM12femaleconnector,Bcoding
-Analoguevariant:5-pinM12femaleconnector,Acoding
2. Electricalconnection:5-pinM12maleconnector,Acoding
3. Possibleuidconnections:
•G-threadedconnectionsaccordingtoDINISO228/1
•NPT-threadedconnectionsaccordingtoASME/
ANSIB1.20.1
4. M4screwforfunctionalearthconnection
5. Baseblock
6. Flowdirection
7. Proportionalvalve.Theproportionalvalvecanbebuilt
insidetheproduct.
8. Productstatus-indicator.Theindicatoroperatesaccording
toNamurNE107.
9. Notused
10.Statusindicatoroftheeldbuscommunication
11. Notused
12. Cover
13. M3screw
14. büSinterfacefortheBürkert-Communicatorsoftware
15. Slotforthememorycard
16. Impactprotection-cover.Theimpactprotection-coveris
onlydeliveredwithanATEXvariant.
Fig. 2: Mass Flow Controller, Probus variant or Analogue variant
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12
Description
8742 Profibus, 8742 Analogue
5.2 Product status-indicator
Theproducthasanindicatortodisplaytheproductstatus.Ifmorethanoneproductstatusexistsimultaneously,theproductstatuswith
thehighestpriorityisdisplayed.
Tab. 1: Description of the product status-indicator
Indicator
according to
NE107
Colour code
(for a PLC)
Description Meaning
Red 5Failure,errororfault MFM:Duetoamalfunctionoftheproductoritsperiphery,themeasuredvaluesarenotvalid.
MFC:Duetoamalfunctionoftheproductoritsperiphery,themeasuredvaluesarenotvalid
andthecontrolledoperationisnotpossible.
Orange 4Functioncheck Workisdoneontheproduct.
•MFM:Theoutputsignalistemporarilyinvalid.
•MFC:Thecontrolledoperationistemporarilynotpossible.
Yellow 3Outofspecication Theambientconditionsorprocessconditionsfortheproductareoutsidethespecied
ranges.
Productinternaldiagnosticspointtoproblemsintheproductorwiththeprocessproperties.
Blue 2Maintenancerequired →Dotherequiredmaintenanceoperation.
MFM:Theproductcontinuestomeasure.
MFC:Theproductcontinuestocontrol,butafunctionistemporarilyrestricted.
Green 1Diagnosticactive Noeventhasbeengenerated.Statuschangesareshownincolor.
Messagesarelistedandpossiblytransmittedthroughanyconnectedeldbus.
White 0 Diagnosticinactive Theproductisswitchedon.
Statuschangesarenotshown.
Messagesarenotlistednortransmittedthroughanyconnectedeldbus.
Whentheproductstatus-indicatorisblinking,aconnectionbetweentheproductandtheBürkert-Communicatorsoftwareis
established.
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13
Description
8742 Profibus, 8742 Analogue
→Tosolveaproblemindicatedbytheproductstatus-indicator,
refertochpt.12.1Troubleshootingiftheproductstatus-indi-
catorshowsaproblem.
5.3 Status indicator of the eldbus
communication
AProbusvarianthasanindicatortoshowthestatusofthe
connectiontothenetwork.
Statusindicatorofthe
eldbuscommunication
Fig. 3: Location of the status indicator of the eldbus communication
Tab. 2: Description of the status indicator of the eldbus
communication
Colour Meaning
green Cyclicdataisbeingexchangedbetweenthe
productandtheeldbusmaster
red Nocyclicdataisbeingexchangedbetweenthe
productandtheeldbusmaster
5.4 Memory card
NOTICE
Ifthememorycardisdefectiveorlost,thenbuyanewmemory
cardfromyourBürkertsalesoce.
Theproductisdeliveredwith a memory cardthat is insertedin
theproduct.
Atproductstart-up,therearetwopossibilities:
•Ifproduct-specicdataisstoredontheinsertedmemorycard,
theproductadoptsthedata.Atproductdelivery,thememory
cardcontainsproduct-specicdata.Togetalistofthestored
data,refertotheHelpfortheInitiationlethatcanbedown-
loadedfromwww.burkert.com.
•Iftheinsertedmemorycardisempty,theproductloadsits
owndataonthememorycard.Anewmemorycardisempty.
Thedataonthememorycardcanbetransferredtoanotherproduct
withthesamearticlenumber.Forexample,thedatacanbetrans-
ferredfromadefectiveproducttoanewproduct.
5.5 büS-interface
UsethebüS-interfaceforshort-termservicingoftheproduct.
OverthebüS-interfaceyoucansettheproductparameters.
→Toservicetheproduct,connectthebüS-interfacetoaPC.
ThePCmustbeequippedwiththeBürkert-Communicator
softwarewhichrunsunderWindows.
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14
Description
8742 Profibus, 8742 Analogue
5.6 Bürkert-Communicator software
TheMassFlowCommunicatorisanotherPCsoftwarethat
isnotcompatiblewiththeproduct.Youcannotusethe
PC-softwareMassFlowCommunicatortocongureor
operatetheproduct.
TheType8920Bürkert-CommunicatorisaPC-softwareand
enablesthefollowingactions,forexample:
•Settingtheparametersoftheproduct,forexamplethebasic
settingsfortheproductstart-up
•Runningthediagnostics,andreadtheerrormemoriesfor
example
•Updatingtheproductsoftware
•Adjustingtheuser-denedcalibrationcurve
TousetheType8920Bürkert-Communicatorsoftware,dothe
followingsteps:
→BuytheUSB-büS-interfacesetwitharticlenumber00772551
fromBürkert.
→DownloadthelatestversionoftheType8920Bürkert-Com-
municatorsoftwarefromwww.burkert.com
→InstalltheBürkert-CommunicatorsoftwareonaPC.During
installation,thebüSstickmustnotbeinsertedatthePC.
→AssemblethepartsoftheUSB-büS-interfaceset.Referto
Fig.4.
Fig. 4: Assembled parts of the USB-büS-interface set with article
number 00772551
→Setthetermination-resistanceswitchofthebüSsticktoON.
→InsertthebüSstickintoaUSBportofthePC.
→Energizetheproduct.Refertochpt.8Electricalinstallation.
→Insertthemicro-USBconnectorintothebüS-interfaceforthe
BürkertCommunicatorsoftware.ThelocationofthebüS-in-
terfaceontheproductisgiveninchpt.5.1onpage10
→WaituntiltheWindowspilotofthebüSstickhasbeencom-
pletelyinstalledonthePC.
→StarttheBürkert-Communicatorsoftware.
→Clickon intheBürkert-Communicatorsoftwaretoesta-
blishthecommunicationbetweentheBürkert-Communicator
softwareandtheproduct.Awindowopens.
→SelectbüS-Stick.
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15
Technical data
8742 Profibus, 8742 Analogue
→ChoosetheportBürkert büS Stick,clickonFinishandwait
untiltheproductsymbolappearsinthelistofdevices.
→Inthelistofdevices,clickonthesymbolrelatedtothe
product:themenustructurefortheproductisdisplayed.
5.7 Proportional valve of an MFC
TheMFCisequippedwithadirectacting,normally-closedsolenoid
valve.
Theproportionalvalveprovidesthesealingfunctionwhenthe
followingconditionsaremet:
•Theproductisusedwithinthespeciedpressurerange.
•Theproductisequippedwithaseatsealthatismadeofasoft
materialsuchasFKMorEPDM.
NOTICE
If the seat seal is made of a hard material such as PCTFE,
then the proportional valve may not be tight.
Productswithanominalvalvediameterof0.05mmor0.1mm
haveaseatsealmadeofahardmaterial.
6 TECHNICAL DATA
6.1 Conformity
TheproductcomplieswiththeEUdirectivesaccordingtotheEU
declarationofconformity(ifapplicable).
6.2 Standards
Theappliedstandards,whichverifyconformitywiththeEUdirec-
tives,canbefoundontheEUtypeexaminationcerticateand/or
theEUdeclarationofconformity(ifapplicable).
6.3 Operating conditions
WARNING
Risk of injury from malfunction that is due to outdoor use.
▶Donotusetheproductinoutdoorareas.
WARNING
Risk of injury caused by pressure, uid escape.
Importantproduct-specicdataisindicatedontheTypelabel
andthecalibrationplate.
▶Onlyusetheproductforthespeciedoperatinguid.
▶Donotexceedthespeciedcalibrationpressure.
→ForthespecialoperatingconditionsofproductswithATEX
certication,refertotheATEXsupplementfortheproduct.
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16
Technical data
8742 Profibus, 8742 Analogue
Tab. 3: Operating conditions of the product
Ambienttemperature
•Analoguevariant •–10°C...+50°C
•Probusvariant •–10°C...+50°C
Fluidtemperature
•MFM •–10°C...+70°C
•–10°C...+60°Cforoxygen
•MFC •–10°C...+70°C
•–10°C...+60°Cforoxygen
Ambienthumidity <95%,non-condensing
IP-Codeaccordingto
EN60529
IP651)
Thecablesmustbeconnected,
andthematingconnectorsmust
bepluggedinandtightened.
Operatingpressure
•MFM •Max.10bar
•MFC •Max.10bar
Dependsonthenominal
diameterofthesolenoidvalve
1) The IP-Code is determined by Bürkert. The IP-Code is not evaluated
according to UL61010.
6.4 Markings
WARNING
Risk of injury caused by pressure, uid escape.
Importantproduct-specicdataisindicatedontheTypelabel
andthecalibrationplate.
▶Onlyusetheproductforthespeciedoperatinguid.
▶Donotexceedthespeciedcalibrationpressure.
6.4.1 Calibration plate
5
4
3
2
1
6
Mass Flow Controller
Medium 1 Medium 2
P1: 1,00 barg P1: 1,00 barg
Mounting: horizontal upright
Id: 00******
QC passed: __ . __ . ____
1. Typeoftheproduct
2. Calibrationuid
3. Calibrationpressure
4. Installationposition
5. Productarticle-number
6. Calibrationdate
Fig. 5: Description of the calibration plate
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17
Technical data
8742 Profibus, 8742 Analogue
6.4.2 Type label
874x 24V ... 9W [5,5W]
IP65/IP67 NEC Class 2 only
5,0 Nl/min Air
10,0 Nl/min Air
PROFIBUS DPV1 max.12Mbit/s
GR:1 KL:A Ta =-10°C..+50°C
S/N 1000 W41ME PS=100barg EPDM
00******
12 3
4
5
6
7
810
11
9
12
13
14
15
16
1. Typeoftheproduct
2. Supplyvoltage,directcurrent
3. ConsumptionaccordingtoUL61010-1[typical
consumption1)]
1)Conditions:ambienttemperature23°C,nominalowrate
100%,regulationfor30minutes
4. Warningsymbol:observetheOperatingInstructionsdeli-
veredwiththeproduct.
5. Ambienttemperature
6. Sealingmaterial
7. Burstpressure
8. Manufacturingcode
9. ClassofthevalveaccordingtotheDVGW(DeutscherVerein
desGas-undWasserfaches)
10.Productarticle-number
11. Serialnumber
12. Categoryoftheproduct
13. Probusvariant:communicationinterface
Analoguevariant:inputandoutput
14. Nominalowrate(Qnominal),unitsandoperatinggas2
15. Nominalowrate(Qnominal),unitsandoperatinggas1
16. IP-Code
Fig. 6: Description of the Type label (example)
6.4.3 Additional markings
Rue du Giessen
F-67220 Triembach
Made in France
Conformitymarking
Certication
Fig. 7: CE marking and UL certication
6.5 Mechanical data
Dimensions,weight:seedatasheetoftheproduct.
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18
Technical data
8742 Profibus, 8742 Analogue
Tab. 4: Materials of the product
Base-blockmaterial •Aluminium
•Stainlesssteel1.4305
Housingmaterial Aluminium
Sealingmaterial SeeTypelabel
Productstatus-indicator Polycarbonate
ATEXimpactprotection-cover Stainlesssteel1.4301
MFC:Materialsofthesolenoidvalve
thatareincontactwiththeuid
1.4310,1.4113,1.4305
6.6 Fluid data
Calibrationuid Operatinggasorair
Measurementrange/
controlrange
1:50
Largermeasurementrangeavailable
onrequest.
Massflowraterange(referencetoN2(IN/min))
•measurementrange
1:50
•0.025...160IN/min
•measurementrange
1:20
•0.01...160IN/min
Measurementaccuracy
(after1minutewarm-up
time)
±0.8%ofthemeasuredvalue
±0.3%ofthefullscale
Repeataccuracy ±0.1%ofthefullscale
MFM:responsetime <300ms
MFC:settlingtime <300ms
6.6.1 Quality of the operating uid
UsetheoperatinguidthatisgivenontheproductType-label.
Theoperatinguidmustbecleananddry.
Thegasorgasmixturemustobeythequalitycriteria
inTab.5.Thequalitycriteriaaregiveninstandard
ISO8573-1,CompressedAir-Part1:Contaminantsand
purityclasses.Theoperatinggasmustobeythequality
criteriatoobeythefollowingrequirements:
•thenecessarymeasurementprecisionoftheproduct
•tomeetthesafetyrequirements
•tomeetthecontrolprecisionofanMFC
Forfurtherinformationonthequalitycriteria,referto
ISO8573-1.
Tab. 5: Quality criteria of the uid
Criteria Qualityclass Value
Maximumparticlesize 21μm
Maximumparticledensity 21mg/m³
Maximumdewpointunder
pressure
43°C
Maximumoilconcentration 10.01mg/m³
6.6.2 Pressure loss (MFM)
AMassFlowMeterhasapressurelossthatdependsonthefol-
lowingparameters:
•theowratevalue
•theproductuid-connectionsize
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19
Technical data
8742 Profibus, 8742 Analogue
•theproductuid-connectiontype
•theproductbase-blocksize
•theoperatinggas
ThepressurelossinanMFMcanbeeitherreadfromadiagram
thatisgivenbytheMFMmanufacturer,orcalculatedwitha
formula.
→Iftheoperatinggasisair,readthepressure-lossvalue
directlyfromthediagraminFig.8orinFig.9.Forexample,if
theowratethroughanMFMwith1/4"threadeduid-con-
nectionsis55lN/minthenthepressureloss pairasgivenin
Fig.8is20mbar.
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
110.00
120.00
130.00
140.00
150.00
160.00
170.00
01020304050607
080
Q [lN/min]
∆p [mbar]
Flange
1/4''
Example
Fig. 8: Pressure loss diagram, MFM with a 25µm mesh lter, for air, in
the measurement range 0...80lN/min
0.00
10.00
20.00
30.00
40.00
80 90 100 120 140 160
Q [Nl/min]
∆p [mbar]
1/4''
Flange
Fig. 9: Pressure loss diagram, MFM with a 250µm mesh lter, for air,
in the measurement range 80...160lN/min
→Iftheoperatinggasisnotair,determinethepressurelossas
follows:
1. Readtheairpressure-loss pairfromthediagram(approach
Qgas=Qair).
2. Calculatethepressureloss pgaswiththeformulainFig.10.
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20
Technical data
8742 Profibus, 8742 Analogue
ρ
ρ
air air
=pressurelossoftheoperatinggas
air =pressurelossofair
ρ=densityoftheoperatinggasatthestandardcon-
ditionsaccordingtoDIN1343(PN=1013.25mbar,
TN=273.15K)
ρair =densityofairatthestandardconditionsaccordingto
DIN1343(PN=1013.25mbar,TN=273.15K)
Fig. 10: Formula to calculate the pressure loss in an MFM
ExampleforargongasthatowsthroughanMFMwith1/4"
threadeduid-connections:
1. Iftheowrateis55lN/minthentheairpressure-loss pairas
giveninFig.9is20mbar.
2. Thepressurelossforargongasataowrateof55lN/minis
27.6mbarasgivenbythecalculationinFig.11.
argon =20mbar
1,784
1,294 =27,6mbar
Fig. 11: Calculation of the pressure loss for argon gas
6.7 Electrical data
6.7.1 Analogue variant
WARNING
▶ForUL-certiedcomponents,onlyuselimitedpowercircuits
of"NECClass2".
Tab. 6: Electrical data of an MFM
Operatingvoltage 24VDC±10%
(15VDC±10%onrequest)
Maximumpowerconsumption 1W
Digitalinput
•0...0,2V •toactivatelevel1
•1...4Voropen •toactivatelevel2
•5...28V •toactivatelevel3
Analogueoutputforthemeasuredvalue
•0/4...20mA •Maximumloopimpedance:
600Watanoperating
voltageof24VDC(200W
atanoperatingvoltageof
15VDC);
Resolution:20µA
•0...5/10V •Maximumcurrent:20mA
Resolution:10mV
Relayoutput Normallyclosedcontact(break
contact),freeofpotential
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