TLV EF200F-C Manuel

172-65758M-01(EF200F-CVortexflowmeter)7June2022
EF200F-C
Vortexflowmeter
Copyright©2022byTLVCO.,LTD.
Allrightsreserved

EF200F-C
2
Tableofcontents
Aboutthisdocument
Symbols
Functionandsystemdesign
Measuringprinciple
Measuringsystem
Input
Measuredvariable
Measuringrange
Operableflowrange
Output
Outputsignal
Signalonalarm
Load
Lowflowcutoff
Galvanicisolation
Protocol-specificdata
Powersupply
Terminalassignment
Supplyvoltage
Powerconsumption
Currentconsumption
Powersupplyfailure
Electricalconnection
Potentialequalization
Terminals
Cableentries
Cablespecification
Overvoltageprotection
Performancecharacteristics
Referenceoperatingconditions
Maximummeasurederror
Repeatability
Responsetime
Influenceofambienttemperature
Installation
Mountinglocation
Orientation
Inletandoutletruns
Lengthofconnectingcable
Mountingthetransmitterhousing
Environment
Ambienttemperaturerange
Storagetemperature
Climateclass
Degreeofprotection
Vibration-andshock-resistance
Electromagneticcompatibility(EMC)
Process
Mediumtemperaturerange
Pressure-temperatureratings
Nominalpressureofsensor
Pressurespecifications
Pressureloss
Thermalinsulation
Mechanicalconstruction
DimensionsinSIunits
DimensionsinUSunits
Weight
Materials
Flangeconnections
Operability
Operatingconcept
Languages
Localoperation
Remoteoperation
Certificatesandapprovals
CEmark
RCM-ticksymbol
HARTcertification
PressureEquipmentDirective
Experience
Otherstandardsandguidelines
Applicationpackages
Wetsteamdetection
Wetsteammeasurement
Supplementarydocumentation
Standarddocumentation
Registeredtrademarks
TLVEXPRESSLIMITEDWARRANTY
Service

EF200F-C
3
About this document
slobmyslacirtcelEslobmyS
Symbol Meaning
Directcurrent
Alternatingcurrent
Directcurrentandalternatingcurrent
Groundconnection
Agroundedterminalwhich,asfarastheoperatorisconcerned,isgroundedviaa
groundingsystem.
ProtectiveEarth(PE)
Aterminalwhichmustbeconnectedtogroundpriortoestablishinganyother
connections.
Thegroundterminalsaresituatedinsideandoutsidethedevice:
• Innergroundterminal:Connectstheprotectivearthtothemainssupply.
• Outergroundterminal:Connectsthedevicetotheplantgroundingsystem.
Symbols for certain types of information
Symbol Meaning
Permitted
Procedures,processesoractionsthatarepermitted.
Preferred
Procedures,processesoractionsthatarepreferred.
Forbidden
Procedures,processesoractionsthatareforbidden.
Tip
Indicatesadditionalinformation.
Referencetodocumentation.
AReferencetopage.
Referencetographic.
Visualinspection.
Symbols in graphics
Symbol Meaning
1,2,3,... Itemnumbers
1. , 2. , 3. ,… Seriesofsteps
A,B,C,... Views
A-A,B-B,C-C,... Sections
Flowdirection

EF200F-C
4
Function and system design
Measuring principle VortexmetersworkontheprincipleoftheKarmanvortexstreet.Whenfluidflowspastabluffbody,
vorticesarealternatelyformedonbothsideswithoppositedirectionsofrotation.Thesevorticeseach
generatealocallowpressure.Thepressurefluctuationsarerecordedbythesensorandconvertedto
electricalpulses.Thevorticesdevelopveryregularlywithinthepermittedapplicationlimitsofthe
device.Therefore,thefrequencyofvortexsheddingisproportionaltothevolumeflow.
A0033465
Samplegraphic
Thecalibrationfactor(K-factor)isusedastheproportionalconstant:
K-Factor=
P
u
l
ses
UnitVolume[m³]
Withintheapplicationlimitsofthedevice,theK-factoronlydependsonthegeometryofthedevice.
ItisforRe>10000:
• Independentoftheflowvelocityandthefluidpropertiesviscosityanddensity
• Independentofthetypeofsubstanceundermeasurement:steam,gasorliquid
Theprimarymeasuringsignalislineartotheflow.Afterproduction,theK-factorisdeterminedin
thefactorybymeansofcalibration.Itisnotsubjecttolong-timedriftorzero-pointdrift.
Thedevicedoesnotcontainanymovingpartsanddoesnotrequireanymaintenance.
Thecapacitancesensor
Thesensorofavortexflowmeterhasamajorinfluenceontheperformance,robustnessand
reliabilityoftheentiremeasuringsystem.
TherobustDSCsensoris:
• burst-tested
• testedagainstvibrations
• testedagainstthermalshock(thermalshocksof150K/s)
Themeasuringdeviceusesthetried-and-tested,capacitancemeasuringtechnology,
whichisalreadyinuseinover450 000measuringpointsworldwide.Thankstoits
design,thecapacitancesensorisalsoparticularlymechanicallyresistanttotemperatureshocks
andpressureshocksinsteampipelines.

EF200F-C
5
Temperature measurement
Themeasuringdevicecanalsomeasurethetemperatureofthemedium.
ThetemperatureismeasuredviaPt1000temperaturesensors.Thesearelocatedinthepaddleof
theDSCsensorandarethereforeinthedirectvicinityofthefluid.
1
A0034068
1 DSCsensor
Pressureandtemperaturemeasurement
Themeasuringdevicecanalsomeasurethepressureandtemperatureofthefluid.
ThetemperatureismeasuredviaPt1000temperaturesensors.Thesearelocatedinthepaddleof
theDSCsensorandarethereforeinthedirectvicinityofthefluid.Pressuremeasurementislocated
directlyonthemeterbodyatthelevelofthebluffbody.Thepositionofthepressuretappingwas
chosensothatpressureandtemperaturecouldbemeasuredatthesamepoint.Thisenablesaccurate
densityand/orenergycompensationofthefluidusingpressureandtemperature.Themeasured
pressuretendstobesomewhatlowerthanthelinepressure.Forthisreason,TLVoffers
acorrectiontothelinepressure(integratedinthedevice).
Ordercodefor"Sensorversion;DSCsensor;measuringtube":
• Option"Masssteam;316L;316L(integratedpressure/temperaturemeasurement)"

EF200F-C
6
Lifelongcalibration
Experiencehasshownthatrecalibratedmeasuringdevicesdemonstrateaveryhighdegreeof
stabilitycomparedtotheiroriginalcalibration:Therecalibrationvalueswereallwithintheoriginal
measuringaccuracyspecificationsofthedevices.Thisappliestothemeasuredvolumeflow,the
device'sprimarymeasuredvariable.
Varioustestsandsimulationhaveshownthatoncetheradiioftheedgesonthebluffbodyareless
than1mm(0.04in),theresultingeffectdoesnothaveanegativeimpactonaccuracy.
Iftheradiioftheedgesonthebluffbodydonotexceed1mm(0.04in),thefollowinggeneral
statementsapply(inthecaseofnon-abrasiveandnon-corrosivemedia,suchasinmostwaterand
steamapplications):
• Themeasuringdevicedoesnotdisplayanoffsetinthecalibrationandtheaccuracyisstill
guaranteed.
• Alltheedgesonthebluffbodyhavearadiusthatistypicallysmallerinsize.Asthemeasuring
devicesarenaturallyalsocalibratedwiththeseradii,themeasuringdeviceremainswithinthe
specifiedaccuracyratingprovidedthattheadditionalradiusthatisproducedasaresultofwear
andteardoesnotexceed1mm(0.04in).
Consequently,itcanbesaidthattheproductlineofferslifelongcalibrationifthemeasuringdeviceis
usedinnon-abrasiveandnon-corrosivemedia.
Inletruncorrection
Inletruncorrectionmakesitpossibletoshortenthenecessaryinletrunbeforethemeasuringdevice
toaminimumlengthof10×DN.Iftheinletrunavailableistooshort,themeasuringdevicecan
correctthemeasurederrordependingontheprecedingdisruptionintheflowprofile.Thisproduces
anadditionalmeasurederrorof±0.5%o.r.1)
TheInletRunCorrectionfunctioncanbeusedforthefollowingpressureratingsandnominal
diameters:
DN15to150(½to6")
• EN(DIN)
• ASMEB16.5,Sch.40/80
Inletruncorrectionispossibleforthefollowingflowobstructions:
• Singleelbow(90°elbow)
• Doubleelbow(2×90°elbows,opposite)
• Doubleelbow3D(2×90°elbows,opposite,notononeplane)
• Reductionbyonenominaldiametersize
Inletandoutletrunstobeconsidered→See46
1) o.r.=ofreading

EF200F-C
7
Measuring system Thedeviceconsistsofatransmitterandasensor.
Twodeviceversionsareavailable:
• Compactversion‒transmitterandsensorformamechanicalunit.
• Remoteversion-transmitterandsensoraremountedinseparatelocations.
Transmitter
EF200-C Deviceversionsandmaterials:
• Compactorremoteversion,aluminumcoated:
Aluminum,AlSi10Mg,coated
Configuration:
• Viafour-linelocaldisplaywithkeyoperationorviafour-line,
• Viaoperatingtools
A0013471
Sensor
EF200F-C Flangedversion:
• Nominaldiameterrange:DN15to300(½to12")
• Materials:
• Measuringtubes
DN15to300(½to12"):stainlesscaststeel,CF3M/1.4408
• Flangeconnections
DN15to300(½to12"):stainlesssteel,triple-certifiedmaterial,
1.4404/F316/F316L
A0034075
Pressuremeasuringcell
1
A0034080
1 Pressuremeasuringcell
Versions:
Pressurecomponents
• Pressuremeasuringcell40bara
• Pressuremeasuringcell100bara
Material
• Wettedparts:
• Processconnection
Stainlesssteel,1.4404/316L
• Membrane
Stainlesssteel,1.4435/316L
• Non-wettedparts:
Housing
Stainlesssteel,1.4404

EF200F-C
8
Input
Measured variable Directmeasuredvariables
Description Measuredvariable
Mass;316L;316L(integratedtemperaturemeasurement) • Volumeflow
• Temperature
Calculatedmeasuredvariables
Versionwithpressuremeasuringcell
Description Measuredvariable
Mass;316L;316L(integratedtemperaturemeasurement) • Correctedvolumeflow
• Massflow
• Calculatedsaturatedsteampressure
• Energyflow
• Heatflowdifference
• Specificvolume
Ordercodefor"Sensorversion",option"massflow(integratedtemperaturemeasurement)"combined
withordercodefor"Applicationpackage"
Description Measuredvariable
Wetsteammeasurement • Steamquality
• Totalmassflow
• Condensatemassflow
Measuring range Themeasuringrangeisdependentonthenominaldiameter,thefluidandenvironmentalinfluences.
Thefollowingspecifiedvaluesarethelargestpossibleflowmeasuringranges(QmintoQmax )for
eachnominaldiameter.Dependingonthefluidpropertiesandenvironmentalinfluences,the
measuringrangemaybesubjecttoadditionalrestrictions.Additionalrestrictionsapplytoboth
thelowerrangevalueandtheupperrangevalue.
FlowmeasuringrangesinSIunits
DN
[mm]
Liquids
[m³/h]
Gas/steam
[m³/h]
15 0.076to4.9 0.39to25
25 0.23to15 1.2to130
40 0.57to37 2.9to310
50 0.96to62 4.9to820
80 2.2to140 11to1800
100 3.7to240 19to3200
150 8.5to540 43to7300
200 15to950 75to13000
250 23to1500 120to20000
300 33to2100 170to28000

EF200F-C
9
FlowmeasuringrangesinUSunits
DN Liquids Gas/steam
[in] [ft³/min] [ft³/min]
½ 0.045to2.9 0.23to15
1 0.14to8.8 0.7to74
1½ 0.34to22 1.7to180
2 0.56to36 2.9to480
3 1.3to81 6.4to1100
4 2.2to140 11to1900
6 5to320 25to4300
8 8.7to560 44to7500
Flowvelocity
D
i
v,Q
A0033468
DiInternaldiameterofmeasuringtube(correspondstodimensionK→Seepage25)
v Velocityinmeasuringtube
Q Flow
TheinternaldiameterofmeasuringtubeDiisdenotedinthedimensionsasdimension
K.→Seepage25.
Calculationofflowvelocity:
v[m/s]=
³
]h/m[Q·4
π·D [m]
i²·1
3600[s/h]
v[ /s]= 4 ·Q[ /min]ft³
π·D [ft]
i²·1
60[s/min]
A0034301
10 14to880 70to12000
12 19to1300 99to17000

EF200F-C
10
Lowerrangevalue
Arestrictionappliestothelowerrangevalueduetotheturbulentflowprofile,whichonlyoccurs
withReynoldsnumbersgreaterthan5000.TheReynoldsnumberisdimensionlessandindicatesthe
ratiooftheinertiaforceofafluidtoitsviscousforcewhenflowingandisusedasacharacteristic
variableforpipeflows.InthecaseofpipeflowswithReynoldsnumberslessthan5000,periodic
vorticesarenolongergeneratedandflowratemeasurementisnolongerpossible.
TheReynoldsnumberiscalculatedasfollows:
Re =4·Q[m
³
/s]· [kg/m
³
]ρ
·D [m]·µ[Pa·s]π
i
Re =4·Q[ft³/s]· [lbm/ft³]ρ
·D [ft]·µ[lbf·s/ft ]π
i
²
A0034291
Re Reynoldsnumber
Q Flow
DiInternaldiameterofmeasuringtube(correspondstodimensionK→See57)
µ Dynamicviscosity
ρ Density
TheReynoldsnumber,5000togetherwiththedensityandviscosityofthefluidandthenominal
diameter,isusedtocalculatethecorrespondingflowrate.
Q [m /h]=
Re=5000 ³
5000 [Pa· ·D [m]· ·s]
i
πμ
· 3600[s/h]
4[kg/m]·³ρ
Q [ /h]=
Re=5000 ³
5000 [lbf· ·D [ft]· ·s/ft ]
i
²πμ
· 60[s/min]
4 [lbm/ ]· ³ρ
A0034302
QRe=5000 FlowrateisdependentontheReynoldsnumber
DiInternaldiameterofmeasuringtube(correspondstodimensionK→Seepage25)
µ Dynamicviscosity
ρ Density
Themeasuringsignalmusthaveacertainminimumsignalamplitudesothatthesignalscanbe
evaluatedwithoutanyerrors.Usingthenominaldiameter,thecorrespondingflowcanalsobe
derivedfromthisamplitude.Theminimumsignalamplitudedependsonthesettingforthe
sensitivityoftheDSCsensor(s),thesteamquality(x)andtheforceofthevibrationspresent(a).The
valuemfcorrespondstothelowestmeasurableflowvelocitywithoutvibration(nowetsteam)ata
densityof1kg/m3(0.0624lbm/ft^3).Thevaluemfcanbesetintherangefrom
6to20m/s(1.8to6ft/s)(factorysetting12m/s(3.7ft/s))withthe Sensitivityparameter(value
range1to9,factorysetting5).
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