Burkert 8081 User manual

Operating Instructions
Bedienungsanleitung
Manuel utilisateur
Type 8081
Water flow rate transmitter
Wasser-Durchfluss-Transmitter
Transmetteur de débit d’eau

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© 2008 Bürkert S.A.S
Operating Instructions Jul2009/1_EU-ML_00560456

3

english
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
Contents:
 
 
 
 
 
 
 
 
 
 
 
 
 
Design5.2.1. ......................................................................................9
Measuringitemandprinciple5.2.2. .............................................9
 
 
  
  
 
 
Mechanicaldata6.3.1. ..................................................................13
Generaldata6.3.2. .........................................................................14
Electricalcharacteristics6.3.3. ....................................................15
Electricalconnections6.3.4. ........................................................15
 
 
  
 
 
  
 
Assemblyofthefemalecableplug(ordercode8.3.1. 438680)................................................................................20
Wiringofthe5-pinM12fixedconnector8.3.2. ......................20

4

english

Contents
Connectingthepulseoutput8.3.3. ............................................21
Onlyconnectingthecurrentoutput8.3.4. ................................21
Connectingboththecurrentandpulseoutputs8.3.5. ..........22
 
 
 
 
 
  
 
 
 
 
  

5

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Aboutthismanual


Failuretoobservethiswarningcanresultinsubstantialorminor• injuries.


Failuretoobservethiswarningcanresultindamagetothedevice• orsystem.
indicatesadditionalinformation,adviceorimportantrecom-
mendationsforyoursafetyandforthecorrectoperationof
thedevice.
referstoinformationcontainedinthismanualorinother
documents.
indicatesaproceduretobecarriedout.
→

Thismanualdescribestheentirelifecycleofthedevice.Pleasekeep
thismanualinasafeplace,accessibletoallusersandanynewown-
ers.

Failureto complywith theseinstructions can lead to hazardous
situations.
Thismanualmustbereadandunderstood.•



Failuretoobservethiswarningcanresultindeathorinserious• injury.


Failuretoobservethiswarningcanresultinseriousinjuryoreven• death.

6

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intendeduse




The8081transmitterisintendedsolelyforthemeasurementof• theflowrateinwaterorneutralliquids.
Ifpossible,avoidplacingthisdevicenearsourcesofelectromag-• neticinterference
Thisdevicemustbeprotectedagainstultravioletraysand,when• installedoutdoors,theeffectsoftheclimaticconditions.
Thisdevicemustbeusedincompliancewiththecharacteristics• andcommissioninganduseconditionsspecifiedinthecontractual
documentsandintheusermanual.
Thedevicecanonlybeusedtogetherwithdevicesandcompo-• nentsrecommendedand/orapprovedbyBürkert.
Requirementsforsafeandproperoperationarepropertransport,• storageandinstallationaswellascarefuloperationandmainte-
nance
Onlyusethedeviceasintended.•

Observeanyexistingrestraintswhenthedeviceisexported.

Thetype8081ultrasoundflowratetransmittermustnotbeusedin•
apotentiallyexplosiveatmosphere.
Donotusefluidthatisincompatiblewiththematerialsofwhichthe•
transmitterismade.
Donotsubjectthedevicetomechanicalloads(e.g.byplacingobjects•
ontopofitorbyusingitasastep).
Donotmakeanyexternalmodificationstothedevice.Donotpaint•
orvarnishanypartofthedevice.

7

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Basicsafetyinformation

Thissafetyinformationdoesnottakeintoaccount:
anycontingenciesoroccurencesthatmayariseduringassembly,•
useandmaintenanceofthedevices.
thelocalsafetyregulationsthattheoperatormustensurethestaff•
inchargeofassemblyobserve.




Toavoidinjurytakecareto:
preventanypowersupplyswitchon.•
carryouttheinstallationandmaintenanceworkbyqualifiedand• skilledstaffwiththeappropriatetools.
guaranteea set or controlled restartingoftheprocess,aftera• powersupplyinterruption.
usethedeviceonlyifinperfectworkingorderandincompliance•
withtheinstructionsprovidedintheusermanual
observethegeneraltechnicalrulesduringtheplanninganduse• ofthedevice.


Thisdevicecontainselectroniccomponentssensitivetoelectro-• staticdischarges.Theycangetdamagediftheyaretouchedby
anelectrostaticallychargedpersonorobject.Intheworstcase
scenario,thesecomponentsareinstantlydestroyedorgooutof
orderassoonastheyareactivated.
Tominimiseorevenavoidalldamageduetoanelectrostaticdis-• charge,takealltheprecautionsdescribedintheEN100015-1
norm.
Alsoensurethatyoudonottouchanyoftheliveelectricalcom-• ponents.
Theultrasonicflowratetransmittertype8081wasdeveloped
withdueconsiderationgiventoacceptedsafetyrulesandis
state-of-the-art.However,risksmayarise.
Failuretoobservetheseinstructionsaswellasanyunauthorised
workonthedeviceexcludesusfromanyliabilityandalsonullifies
thewarrantywhichcoversthedeviceanditsaccessories.

8

english
Generalinformation


Whenyoureceivethemerchandise,makesurethatthecontentsof
thedeliveryhavenotbeendamagedinanywayandensurethatthey
correspondexactlywiththedeliverynoteorpackinglist.
Ifthisisnotthecase,contactusimmediately.
Theaddressesofourinternationalbranchescanbefoundonthe
lastpagesofthismanual.
Alsoontheinternet,at:
www.burkert.com Bürkert Company Locations

Theconditiongoverningthelegalwarrantyistheconforminguseof
the8081inobservanceoftheoperatingconditionsspecifiedinthis
manual.Thetermsandconditionsofanywarrantyaregovernedbyour
generaltermsandconditionsofsale.
Thelegalwarrantyonlycoverspossibledefectsinthe8081
flowratesensoranditscomponents.
Bürkertcannotbeheldresponsibleforanylossesordamage
relatedto the product,the service, this warrantyor other,
includingfinancialorintangiblelosses,thepricepaidforthe
product,alossofprofits,revenues,data,enjoymentoruseof
theproductorofanyrelatedproduct,orindirectorfortuitous
lossordamage.
Intheeventofdifferencesininterpretationandunderstanding
ofthisparagraph4.2,theFrenchversionaloneshallprevail.

Youcanfindtheusermanualsandtechnicaldatasheetsregarding
thetype8081at:
www.burkert.comDocumentation DatasheetsorManuals/Ap-
provals Type8081
Thecompletemanualcanbeorderedundercode:00560456

9

english
Description


Theultrasonicflowratetransmittertype8081isintendedforthe
measurementofwaterflowrateswhichmaybeslightlychargedwith
contaminants.


The8081ultrasonicflowratetransmitterconsistsofanelectronic
moduleandabrassfittingwithabuilt-inmeasuringtube.When
combinedwithacontrollerandacontrolloop,itenablesacontrol
looptobeestablished.
Theelectricalconnectionismadeviaa5-pinM12fixedconnector.
Thetransmitterfeatures,dependingontheversion:
apulseoutputor•
apulseoutputanda4-20mAcurrentoutput;•
Eachversionisavailablefor5differentflowrateranges:
modelQN0.6DN15:0.06to20l/min•
(nominalflowrate0.6m3/hnamely10l/min)
modelQN1.5DN15:0.1to50l/min•
(nominalflowrate1.5m3/hnamely25l/min)
modelQN2.5DN20:0.16to82l/min•
(nominalflowrate2.5m3/hnamely41l/min)
modelQN3.5DN25:0.6to116l/min•
(nominalflowrate3.5m3/hnamely58l/min)
modelQN6DN25:1to200l/min•
(nominalflowrate6m3/hnamely100l/min)

The8081flowmeterisbasedonthetransittimemethod.Thiscon-
sistsinmeasuringthetransittimesofthesoundfromemitter1to
receiver2andfromemitter2toreceiver1andsubsequentlycom-
paringbothvalues.Thecalculatedtransisttimedifferenceisdirectly
proportionaltotheflowspeedofthefluid.
1 2
emitter-receiver emitter-receiver
Direction
offlowof
thefluid
ultrasonic
wave1
ultrasonic
wave2
t0t1t2
∆t
Theelectronicmodulethendeliversapulsesignalproportionalto
thevolumeoranindustry-standard4-20mAsignal,proportionalto

10

english
Description
theflowrateortothetemperature.

Measuredquantity,typeofflowmeter1.
Supplyvoltage2.
Measuringprinciple3.
Pipediameter4.
Outputdata5.
Processconnection6.
Flowraterange7.
Manufacturer'scode8.
Serialnumber9.
Ordercode10.
Materials:housing,seal11.
FLOW8081 ULTRASON DN20
NPN/PNP : 0,7A - 36VDC
12-36 VDC 4-20mA G1
MSEPDMFKM
0,16-82L/MIN
S/N 1000
00559869 W41LP
Made in France
1
5
6
8
911
7
10
3 42

11

english
Description

    

0,6 15 0.06to
20l/min
G3/4''exter-
nalthread
Pulse,NPN 560131
Pulse,PNP+
4-20mA,sourcing
mode
560113
NPT3/4''ex-
ternalthread
Pulse,NPN 560612
Pulse,PNP+
4-20mA,sourcing 560617
1,5 15 0,1to
50l/min
G3/4''exter-
nalthread
Pulse,NPN 559865
Pulse,PNP+
4-20mA,sourcing
mode
559868
NPT3/4''ex-
ternalthread
Pulse,NPN 560613
Pulse,PNP+
4-20mA,sourcing
mode
560618
    

2,5 20 0,16to
82l/min
G1''external
thread
Pulse,NPN 559866
Pulse,PNP+
4-20mA,sourcing
mode
559869
NPT1''exter-
nalthread
Pulse,NPN 560614
Pulse,PNP+
4-20mA,sourcing
mode
560619
3,5 25 0,6to
116l/min
G11/4''ex-
ternalthread
Pulse,NPN 559867
Pulse,PNP+
4-20mA,sourcing
mode
559870
NPT11/4''
external
thread
Pulse,NPN 560615
Pulse,PNP+
4-20mA,sourcing
mode
560620

12

english
Technicaldata
    

625 1to
200l/min
G11/4''ex-
ternalthread
Pulse,NPN 560132
Pulse,PNP+
4-20mA,sourcing
mode
560114
NPT11/4''
external
thread
Pulse,NPN 560616
Pulse,PNP+
4-20mA,sourcing
mode
560621


Ambienttemperature: +5to+55°C
Storagetemperature: +5to+55°C
Airhumidity: <80%,notcondensated
Protectionrating: IP65withcableplugplugged-inand
 tightened


EMC:EN61000-6-3,61000-6-2
Vibration:EN60068-2-6
Shock:EN60068-2-27
Pressure:complyingwitharticle3of§3from97/23/CEdirective
Forthe97/23/CEpressuredirective,thedevicecanonlybeusedin
thefollowingcases(dependingonmax.pressure,pipediameterand
fluid)
 
Fluidgroup1,§1.3.a Forbidden
Fluidgroup2,§1.3.a Allowed(PN*DN ≤1000)
Fluidgroup1,§1.3.b Forbidden
Fluidgroup2,§1.3.b Allowed

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
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Technicaldata


 
Housing,cover PPS
Sealincontactwith
theenvironment Silicone
M12connector PA
Fitting Brass
Measuringtube PES
Sealincontactwith
thefluid EPDM,FKM
Dimensions[mm]
B
Hh
L3
L2
L4
L1
A
L5
DN A B H h L1 L2 L3 L4 L5
15 GorNPT3/4'' 65.5 83.5 23 110 90 58 6.5 19.5
20 GorNPT1'' 65.5 79 18 130 90 58 6.5 19.5
25 GorNPT11/4'' 65.5 76.5 14.5 260 90 58 6.5 19.5

14

english
Technicaldata

Pipediameter DN15toDN25
Typeoffluid water(orneutralliquidsonrequest)
Fluidtemperature 5to90°C
Fluidpressure PN16
Measuringrange 0.06to200l/min
Accuracy(seecurveson
nextpage)
±(0.01%ofFullScale*+2%of
measuredvalue)1)
Repeatability 1%ofmeasuredvalue
Measuringelement 2ultrasoundemitter-receivercells
* Full Scale, see measuring range on the diagram of measurement accuracy.
1) Reference conditions: fluid = water, water and ambient temperatures = 20°C

-10
-8
-6
-4
-2
0
2
4
6
8
10
0,1 1 10 100 1000
max DN25
max DN15
max DN20
Flowrateinl/min
Max.measurement
deviationin%

15

english
Technicaldata

Supplyvoltage(V+) 12-36VDC
Currentconsumption Ownconsumption:<4mA•
Consumptionwithload:<1A•
Pulseoutput
(transistor)
versionwithout•
currentoutput
versionwithcur-•
rentoutput

NPNasdefaultsetting;(PNPon•
request),opencollector,5mAmin.,
700mAmax.,NPNoutput:0,2-36VDC
PNPasdefaultsetting;(onrequest:•
NPNforthepulseoutputandsink-
ingmodeforthecurrentoutput),open
collector,5mAmin.,700mAmax.,
PNPoutput:supplyvoltage(V+)

IfQN=0.6or1.5:1pulsecorresponds
toavolumeV=0.002l(Kfactor=
500pulse/litre)
IfQN=2.5or3.5:1pulsecorresponds
toavolumeV=0.005l(Kfactor=
200pulse/litre)
IfQN=6:1pulsecorrespondsto
avolumeV=0.01l(Kfactor=
100pulse/litre)
Currentoutput 4-20mA(sourcingmodeasdefaultset-
ting;onrequest:sinkingmodeforthecur-
rentoutputandNPNforthepulseoutput)
correspondingtotheflowraterangeof
theselectedmodel(defaultsetting)ortoa
temperaturerange(onrequest)
max.loopresistance:
1100Wat36VDC
610Wat24VDC
100Wat12VDC
Protectionagainst:
reversedpolarity
voltagepeaks
short-circuits

yes
yes
yes,forthepulseoutput
Recommendedcable
type

max.crosssectionof1.5mm2




Anyversion female5-pinM12cableplug(availableasan
accessory;Ordercode438680)

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Assembly




Cutoffthepressureanddepressurizethepipesbeforeloosening• thepipesandfittings.

Beforestartingwork,switchoffthepowersupplyandsecureit• topreventrestarting.
Observetheapplicableaccidentpreventionandsafetyregulations• forelectricalequipment.


Thedevicemustonlybeassembledbyqualifiedandskilledstaff• withtheappropriatetools.


Take appropriatemeasures to avoidunintentional activation of• theinstallation.
Guaranteeasetorcontrolledrestartingoftheprocesssubsequent• totheassemblyofthedevice.





Donotdismantlethedevice•

17
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Installationandwiring


Theelectricalandfluidinstallationcanonlybecarriedoutbyquali-• fiedandskilledstaffwiththeappropriatetools
Installappropriate safety devices (correctlyrated fuse and/or• circuit-breaker).
Usecableswithanoperatingtemperaturelimitwhichissuitable• foryourapplication.
Undernormalconditionsofuse,cableswitha0.75mm• 2cross
sectionshouldbeenoughtotransmitthesignal.


Takeappropriatemeasurestoavoidanyinvoluntaryactivationof• theinstallation.
Guaranteeasetorcontrolledrestartingoftheprocesssubsequent• totheassemblyofthedevice.



Cutoffthepressureanddepressurizethepipesbeforeloosening• thepipesandconnections.




Cutoffthepressureanddepressurizethepipesbeforeloosening• thepipesandconnections.

Beforestartingwork,makesurethatyouswitchoffthesupply• voltageandsecureittopreventrestarting.
Observeallapplicableaccidentprotectionandsafetyguidelines• forelectricalequipment.

18
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Installationandwiring
The8081ultrasonicflowratetransmittercanbefittedontoahori-
zontalorverticalpipe.
Incorrect
Incorrect
Correct
Correct
Whenhorizontally
mounted,themax.fluid
temperatureis90°C.
Butthemax.fluidtem-
peraturemustbere-
ducedto80°Cwhenthe
electronics(blackenclo-
sure)isturnedupwards.
Whenverticallymounted
themax.fluidtempera-
tureisalso80°C.

→
.Itisindicatedwithanarrow,markedonthe
undersideofthefitting.
Itisadvisabletoavoidplacingthe8081transmitternear
anysourceofelectromagneticinterference(switch,electric
motor,fluorescentlamp,...)
Minimumupstreamanddownstreamdistancesarenotnecessary.
The8081workscorrectlywhenthepipeisfullandfreeofanyair
bubblesnearthetransmitter.Inpresenceofbubblesinthepipe,the
leftinstallationno.1shouldbeavoided.
1 2 3 4
Iftheabsenceofanyairbubblescannotbeguaranteed,thedevice
shouldthenbefittedonanhorizontalpipe,withtheelectronicen-
closurefacingdown.Thusthebubbleswillnotinterferewiththe
circulationofultrasonicwaves.