Burkert 8746 User manual
Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 8746
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 - 2021
Operating Instructions 2103/01_EU-ML_00573732 / Original EN
3
Table of contents
Type 8746 Profibus, 8746 Analogue
1 THE OPERATING INSTRUCTIONS ............................................. 6
1.1 Denitionofthetermproduct........................................ 6
1.2 AboutNAMURandtheNAMURRecommen-
dationNE107................................................................ 6
1.3 Symbolsused................................................................ 6
2 INTENDED USE .................................................................... 7
2.1 ProductvariantwithATEXcertication ......................... 8
3 BASIC SAFETY INFORMATION............................................ 8
4 GENERAL INFORMATION .................................................. 10
4.1 Contact ........................................................................ 10
4.2 Warranty ...................................................................... 10
4.3 InformationontheInternet .......................................... 10
5 DESCRIPTION..................................................................... 11
5.1 Productvariants........................................................... 11
5.1.1 MassFlowMeter(MFM) ................................ 11
5.1.2 MassFlowController(MFC)with
proportionalvalve .......................................... 12
5.1.3 MassFlowController(MFC)withmotorvalve13
5.2 Productstatusindicator .............................................. 13
5.3 MotorvalvestatusLED ............................................... 15
5.4 StatusLEDfortheeldbuscommunication..................... 15
5.5 Memorycard ............................................................... 16
5.6 büS-interface ............................................................... 16
5.7 ControlvalveofanMFC.............................................. 16
6 TECHNICAL DATA............................................................... 17
6.1 Conformity ................................................................... 17
6.2 Standards .................................................................... 17
6.3 Operatingconditions ................................................... 17
6.3.1 MassFlowMeter............................................ 17
6.3.2 MassFlowControllerwithproportionalvalve 18
6.3.3 MassFlowControllerwithType3280
motorvalve .................................................... 18
6.3.4 MassFlowControllerwithType3285
motorvalve .................................................... 19
6.4 Markings ...................................................................... 19
6.4.1 Calibrationplate ............................................. 19
6.4.2 Typelabel ....................................................... 20
6.4.3 Conformitymarking,certicationmarking..... 20
6.5 Productmaterials......................................................... 21
6.6 Dimensions,weight ..................................................... 21
6.7 Fluiddata..................................................................... 21
6.7.1 MassFlowMeter............................................ 21
6.7.2 MassFlowControllerwithproportionalvalve 22
6.7.3 MassFlowControllerwithmotorvalve.......... 22
6.7.4 Qualityoftheoperatinguid.......................... 23
6.7.5 Pressureloss(MFM)....................................... 23
6.7.6 Operatinggasisair ........................................ 23
6.7.7 Operatinggasisnotair.................................. 25
6.8 Electricaldata...................................................................... 26
6.8.1 ProductvariantAnalogue............................... 26
6.8.2 ProductvariantProbus ..................................... 27
6.9 Communicationinterface(productvariantProbus) ... 27
English
4
Type 8746 Profibus, 8746 Analogue
7 FLUID INSTALLATION......................................................... 27
7.1 Safetyinstructions....................................................... 27
7.2 Installationsteps.......................................................... 28
7.3 ProductvariantwithG-internal-threadeduid
connections ................................................................. 28
7.4 ProductvariantwithNPT-internal-threadedcon-
nections ....................................................................... 31
7.5 Productvariantwithangeconnections ..................... 32
8 ELECTRICAL INSTALLATION ............................................. 32
8.1 Safetyinstructions....................................................... 32
8.2 Additionaldocumentation ........................................... 33
8.2.1 ProductvariantAnalogue............................... 33
8.2.2 ProductvariantProbus................................ 33
8.3 WiringtheproductvariantAnalogue ........................... 33
8.3.1 Digitalinput .................................................... 35
8.3.2 Relayoutput................................................... 36
8.4 WiringtheproductvariantProbus............................ 37
8.5 Connectingthefunctionalearth .................................. 38
9 COMMISSIONING............................................................... 39
9.1 Safetyinstructions....................................................... 39
9.2 Commissioningsteps .................................................. 39
10 SETTING AND OPERATION ............................................... 40
10.1Safetyinstructions....................................................... 40
10.2Functions ..................................................................... 40
10.2.1 Zero-pointshut-o(MFC) .............................. 40
10.2.2 Flushmode(MFCProbus) ........................... 41
10.3Toolsfordoingsettings ............................................... 41
10.4ConnecttheproducttotheBürkertCommuni-
catorsoftware.............................................................. 41
10.5User-denedadjustment ............................................. 42
10.6OperatingmodesofanMFC ....................................... 42
10.7Normaloperatingmode(MFC) .................................... 43
10.7.1 ProductvariantProbus................................ 43
10.7.2 ProductvariantAnalogue............................... 43
10.8Optimisetheclosed-loopcontrolparameters(MFC)........ 44
10.9Choosethesourcegivingtheset-pointvalue(MFC) .. 45
10.10Set-pointvalueswithoutcommunication(MFC
Probus)...................................................................... 45
11 MAINTENANCE................................................................... 46
11.1Maintenanceforoperationwithheavilycontami-
nateduids .................................................................. 46
11.1.1 Inspectandcleanthestainlesssteel
mesh-lter ...................................................... 47
11.2Cleaningandrecalibrationatthefactory..................... 48
11.3Replacethememorycard ........................................... 48
12 TROUBLESHOOTING ......................................................... 49
12.1Problemsshownbytheproductstatusindicator........ 49
12.1.1 Productstatusindicatorisred(MFM
Analogue) ....................................................... 49
12.1.2 Productstatusindicatorisred(MFM
Probus) ......................................................... 50
12.1.3 Productstatusindicatorisred(MFC
Analogue) ....................................................... 50
English
5
Type 8746 Profibus, 8746 Analogue
12.1.4 Productstatusindicatorisred(MFC
Probus) ......................................................... 50
12.1.5 Productstatusindicatorisorange(MFM)...... 50
12.1.6 Productstatusindicatorisorange(MFC) ...... 51
12.1.7 Productstatusindicatorisyellow(MFM)....... 51
12.1.8 Productstatusindicatorisyellow(MFC) ....... 51
12.1.9 Productstatusindicatorisblue ..................... 51
12.2ProblemsshownbythestatusLEDofthemotor
valve............................................................................. 52
12.2.1 LEDisredandashes,LEDisredandON ... 52
12.2.2 LEDisyellowandashes .............................. 52
12.3Miscellaneousproblems.............................................. 52
12.3.1 Productstatusindicatoriso ....................... 52
12.3.2 Productstatusindicatorashes .................... 52
12.3.3 Productstatusindicatorgoesout
periodically..................................................... 52
12.3.4 Replacementproductadoptsnone
ofthevaluesfromthedefectiveproduct ....... 53
12.3.5 Replacementproductdoesnot
adoptallofthevaluesfromthe
defectiveproduct ........................................... 53
12.3.6 Nomassowrate(MFM) ............................... 53
12.3.7 Nomassowrate(MFC)................................ 53
12.3.8 Unstablemeasuredvalue(MFM) ................... 53
12.3.9 Unstablemeasuredvalue(MFC).................... 54
12.3.10 Set-pointvalueat0%,butoperating
uidstillows(MFC)...................................... 54
12.3.11 Set-pointvalueat0%,control
valveisclosed,nomassow,buta
non-zeromassowrateismeasured(MFC) . 54
12.3.12 Set-pointvalueisnotreached(MFC) ............ 54
13 ACCESSORIES, SPARE PARTS ......................................... 55
13.1Electricalaccessories .................................................. 55
13.2Compressionttingsforaproductvariantwith
internal-threadeduidconnections............................. 55
13.3Meshlters .................................................................. 56
13.4Additionalsoftware...................................................... 56
14 DECOMMISSIONING.......................................................... 56
14.1Safetyinstructions....................................................... 56
14.2Dismantlingtheproduct .............................................. 57
15 TRANSPORT....................................................................... 57
16 STORAGE, DISPOSAL ........................................................ 58
17 RETURNING THE PRODUCT ............................................. 58
English
6
The Operating instructions
Type 8746 Profibus, 8746 Analogue
1 THE OPERATING INSTRUCTIONS
The Operating Instructions describe the entire life cycle of the
product.PleasekeeptheOperatingInstructionsinasafeplace,
accessibletoallusersandanynewowners.
Important safety information.
▶ReadtheOperatingInstructions.Ifyoudonotunderstandthe
contentoftheOperatingInstructions,thencontactBürkert.
▶Payparticularattentiontothechpt.Basicsafetyinformation
andtothechpt.Intendeduse.
1.1
Theterm"product"asusedintheOperatingInstructions,refers
tooneorseveralofthefollowingdevices:
•MassFlowMeter(MFM)Type8746Probus
•MassFlowMeter(MFM)Type8746Analogue
•MassFlowController(MFC)Type8746Probus
•MassFlowController(MFC)Type8746Analogue
1.2
Standardscommitteeformeasurementandcontroltechnology
(NAMUR)isaninternationalassociationofusersofautomation
systemsfortheprocessindustry.
NAMURrecommendation(NE)107:self-monitoringanddiag-
nosisofelddevices.
1.3
DANGER
Warns of an immediate danger.
▶Failuretoobservethewarningresultsindeathorinserious
injuries.
WARNING
Warnsofapotentiallydangeroussituation.
▶Failuretoobservethewarningcanresultinseriousinjuriesor
indeath.
CAUTION
Warns of a possible danger.
▶Failuretoobservethewarningcanresultinmoderateorminor
injuries.
NOTICE
Warns of damage to property.
▶Failuretoobservethewarningmayresultindamagetothe
productorsystem.
The symbol indicatesimportantadditionalinformation,
tipsandrecommendations.
English
7
Intended use
Type 8746 Profibus, 8746 Analogue
ThesymbolreferstoinformationintheOperating
Instructions,orinotherdocuments.
▶Designatesaninstructionforriskprevention.
→Designatesaworkstepthatyoumustcarryout.
Indicatesaresult.
MenuDesignatesatextofauserinterface.
2 INTENDED USE
Improper use of the product may be a hazard to people, nearby
equipment and the environment.
MFM Type 8746 Probus or MFM Type 8746 Analogue is
used exclusively to measure the mass ow rate of clean and
dry gases.
MFC Type 8746 Probus or MFC Type 8746 Analogue is used
exclusively to regulate the mass ow rate of clean and dry
gases.
▶Observethedatainthecontractdocuments,intheOperating
Instructions,ontheTypelabelandonthecalibrationplate:
-additionaldata
-operatingconditions
-serviceconditions
▶OnlyusetheproductfortheuidsindicatedontheType
labelandinthecalibrationprotocol.
▶Onlyusetheproductindoors.
▶Onlyusetheproductuptoanaltitudeof2000m.
▶Onlyusetheproductwithexternalinstrumentsthattheproduct
manufacturerrecommends.
▶Onlyusetheproductwithcomponentsthattheproductman-
ufacturerrecommends.
▶Operatetheproductcarefullyandensureregularandprofes-
sionalmaintenance.
▶Operatetheproductonlyinperfectworkingorder.Ensure
appropriatestorage,transport,installationanduse.
▶Onlyusetheproductforitsintendedpurpose.
English
8
Basic safety information
Type 8746 Profibus, 8746 Analogue
2.1
DANGER
Risk of explosion that is due to improper use of the product
in potentially explosive areas.
▶ObservethespecicationsoftheATEX-conformity
certicate.
▶ObservethespecicationsintheATEXsupplementforType
8746.Thesupplementisavailableatcountry.burkert.com.
The ATEX certication is only valid if the product is used as
describedintheATEXsupplement.
Ifunauthorizedchangesaremadetotheproduct,thentheATEX
certicationbecomesinvalid.
3
Thissafetyinformationdoesnottakeintoaccountanycontin-
genciesoroccurrencesthatmayariseduringinstallation,use
andmaintenanceoftheproduct.
Theoperatingcompanyisresponsiblefortherespectofthelocal
safetyregulationsincludingforthepersonnelsafety.
Risk of injury that is due to pressure in the installation or in
the product.
▶Beforeworkingontheinstallationorproduct,cutthepres-
sure.Ventanddrainthepipes.
Risk of injury from electric shocks.
▶Beforeworkingontheinstallationorproduct,switchothe
powersupply.Makesurethatnobodycanswitchthepower
supplyon.
▶Observeallapplicableaccidentprotectionandallapplicable
safetyregulationsforelectricalequipment.
Burn hazard and re hazard that are due to hot surface of the
product.
▶Donottouchthehotsurfacewithbarehands.
▶Wearsafetyglovestotouchtheproduct.
▶Keeptheproductawayfromanyhighlyammablematerials
oruids.
Risk of injury that is due to escape of the uid.
▶Observeallapplicableaccidentprotectionandallapplicable
safetyregulationsrelatingtotheoperatinguidused.
English
9
Basic safety information
Type 8746 Profibus, 8746 Analogue
Various dangerous situations.
Toavoidpersonalinjury,obeythefollowinginstructions:
▶Donotoperatetheproductwithoutitsmeshlter.
▶Onlyoperatetheproductintheinstallationpositionthatis
givenonthecalibrationplate.
▶MakesurethattheoperatingpressureoftheMFMisnot
higherthanthemaximumcalibrationpressurethatisgiven
onthecalibrationplate.
▶MakesurethattheoperatingpressureoftheMFCisnot
higherthanthetightsealingpressureofthecontrolvalve.
▶Onlyusetheproductfortheuidspeciedastheoperating
uidinthecalibrationprotocol.
▶Onlyuseagentsthatarestablewiththeproductmaterialsfor
cleaninganddecontamination
Findthecompatibilitychartonourhomepage:
country.burkert.com
Intheeventofanyambiguitypleasecontactyourlocalsales
oce.
▶Do not make any modications to the product and do not
subjecttheproducttomechanicalstress.
▶Protecttheinstallationandtheproductfromaccidental
actuation.
▶Onlytrainedpersonnelmayperformtheinstallationworkand
themaintenancework.
▶Afteraninterruptionintheelectricalsupplyorintheuid
supply,ensureacontrolledrestartoftheprocess.
▶Observebestindustrypractice.
NOTICE
Components or assemblies at risk from electrostatic
charges.
Theproductcontainselectroniccomponentswhicharesuscep-
tibletoelectrostaticdischarge(ESD).Contactwithelectrostati-
callychargedpersonsorobjectsendangersthesecomponents.
Intheworstcase,theywillbecomedefectiveimmediatelyorwill
failwhenenergised.
•Tominimiseorevenavoidanydamagecausedbyanelec-
trostaticdischarge,takealltheprecautionsdescribedinthe
EN61340-5-1.
•Donottouchanyoftheliveelectricalcomponents.
English
10
General information
Type 8746 Profibus, 8746 Analogue
4
4.1
Thenameofthemanufacturerisdisplayedasinsetwritingonthe
coverandthehousingoftheproduct.
Tocontactthemanufactureroftheproduct,usethefollowing
address:
BürkertSAS
RueduGiessen
F-67220TRIEMBACH-AUVAL
Theaddressesofourinternationalsalesocesareavailableon
theinternetat:country.burkert.com
4.2
Thewarrantyisconditionaloncompliantuseoftheproductin
observanceoftheoperatingconditionsspeciedintheOper-
atingInstructions.
4.3
OperatingInstructionsanddatasheetsfortheproductcanbefound
onlineat:country.burkert.com
English
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