TLV EF200R-C Manual

172-65760M-01(EF200R-CVortexﬂowmeter)7June2022

EF200R-C

Vortexﬂowmeter

Allrightsreserved

EF200R-C

Tableofcontents

Aboutthisdocument

Symbols

Functionandsystemdesign

Measuringprinciple

Measuringsystem

Input

Measuredvariable

Measuringrange

Operableﬂowrange

Output

Outputsignal

Signalonalarm

Load

Lowﬂowcutoﬀ

Galvanicisolation

Protocol-speciﬁcdata

Powersupply

Terminalassignment

Supplyvoltage

Powerconsumption

Currentconsumption

Powersupplyfailure

Electricalconnection

Potentialequalization

Terminals

Cableentries

Cablespeciﬁcation

Overvoltageprotection

Performancecharacteristics

Referenceoperatingconditions

Maximummeasurederror

Repeatability

Responsetime

Inﬂuenceofambienttemperature

Installation

Mountinglocation

Orientation

Inletandoutletruns

Lengthofconnectingcable

Mountingthetransmitterhousing

Environment

Ambienttemperaturerange

Storagetemperature

Climateclass

Degreeofprotection

Vibration-andshock-resistance

Electromagneticcompatibility(EMC)

Process

Mediumtemperaturerange

Pressure-temperatureratings

Nominalpressureofsensor

Pressurespeciﬁcations

Pressureloss

Thermalinsulation

Mechanicalconstruction

DimensionsinSIunits

DimensionsinUSunits

Weight

Materials

Flangeconnections

Operability

Operatingconcept

Languages

Localoperation

Remoteoperation

Certiﬁcatesandapprovals

CEmark

RCM-ticksymbol

HARTcertiﬁcation

PressureEquipmentDirective

Experience

Otherstandardsandguidelines

Applicationpackages

Wetsteamdetection

Wetsteammeasurement

Supplementarydocumentation

Standarddocumentation

Registeredtrademarks

TLVEXPRESSLIMITEDWARRANTY

Service

EF200R-C

About this document

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Symbol Meaning

Directcurrent

Alternatingcurrent

Directcurrentandalternatingcurrent

Groundconnection

Agroundedterminalwhich,asfarastheoperatorisconcerned,isgroundedviaa

groundingsystem.

ProtectiveEarth(PE)

Aterminalwhichmustbeconnectedtogroundpriortoestablishinganyother

connections.

Thegroundterminalsaresituatedinsideandoutsidethedevice:

• Innergroundterminal:Connectstheprotectivearthtothemainssupply.

• Outergroundterminal:Connectsthedevicetotheplantgroundingsystem.

Symbols for certain types of information

Symbol Meaning

Permitted

Procedures,processesoractionsthatarepermitted.

Preferred

Procedures,processesoractionsthatarepreferred.

Forbidden

Procedures,processesoractionsthatareforbidden.

Tip

Indicatesadditionalinformation.

Referencetodocumentation.

AReferencetopage.

Referencetographic.

Visualinspection.

Symbols in graphics

Symbol Meaning

1,2,3,... Itemnumbers

1. , 2. , 3. ,… Seriesofsteps

A,B,C,... Views

A-A,B-B,C-C,... Sections

Flowdirection

EF200R-C

Function and system design

Measuring principle VortexmetersworkontheprincipleoftheKarmanvortexstreet.Whenﬂuidﬂowspastabluﬀbody,

vorticesarealternatelyformedonbothsideswithoppositedirectionsofrotation.Thesevorticeseach

generatealocallowpressure.Thepressureﬂuctuationsarerecordedbythesensorandconvertedto

electricalpulses.Thevorticesdevelopveryregularlywithinthepermittedapplicationlimitsofthe

device.Therefore,thefrequencyofvortexsheddingisproportionaltothevolumeﬂow.

A0033465

Samplegraphic

Thecalibrationfactor(K-factor)isusedastheproportionalconstant:

K-Factor=

ses

UnitVolume[m³]

Withintheapplicationlimitsofthedevice,theK-factoronlydependsonthegeometryofthedevice.

ItisforRe>10000:

• Independentoftheﬂowvelocityandtheﬂuidpropertiesviscosityanddensity

• Independentofthetypeofsubstanceundermeasurement:steam,gasorliquid

Theprimarymeasuringsignalislineartotheﬂow.Afterproduction,theK-factorisdeterminedin

thefactorybymeansofcalibration.Itisnotsubjecttolong-timedriftorzero-pointdrift.

Thedevicedoesnotcontainanymovingpartsanddoesnotrequireanymaintenance.

Thecapacitancesensor

Thesensorofavortexﬂowmeterhasamajorinﬂuenceontheperformance,robustnessand

reliabilityoftheentiremeasuringsystem.

TherobustDSCsensoris:

• burst-tested

• testedagainstvibrations

• testedagainstthermalshock(thermalshocksof150K/s)

Themeasuringdeviceusesthetried-and-tested,capacitancemeasuringtechnology,

whichisalreadyinuseinover450 000measuringpointsworldwide.Thankstoits

design,thecapacitancesensorisalsoparticularlymechanicallyresistanttotemperatureshocks

andpressureshocksinsteampipelines.

EF200R-C

Temperature measurement

Themeasuringdevicecanalsomeasurethetemperatureofthemedium.

ThetemperatureismeasuredviaPt1000temperaturesensors.Thesearelocatedinthepaddleof

theDSCsensorandarethereforeinthedirectvicinityoftheﬂuid.

A0034068

1 DSCsensor

Pressureandtemperaturemeasurement

Themeasuringdevicecanalsomeasurethepressureandtemperatureoftheﬂuid.

ThetemperatureismeasuredviaPt1000temperaturesensors.Thesearelocatedinthepaddleof

theDSCsensorandarethereforeinthedirectvicinityoftheﬂuid.Pressuremeasurementislocated

directlyonthemeterbodyatthelevelofthebluﬀbody.Thepositionofthepressuretappingwas

chosensothatpressureandtemperaturecouldbemeasuredatthesamepoint.Thisenablesaccurate

densityand/orenergycompensationoftheﬂuidusingpressureandtemperature.Themeasured

pressuretendstobesomewhatlowerthanthelinepressure.Forthisreason,TLVoﬀers

acorrectiontothelinepressure(integratedinthedevice).

Ordercodefor"Sensorversion;DSCsensor;measuringtube":

• Option"Masssteam;316L;316L(integratedpressure/temperaturemeasurement)"

Lifelongcalibration

Experiencehasshownthatrecalibratedmeasuringdevicesdemonstrateaveryhighdegreeof

stabilitycomparedtotheiroriginalcalibration:Therecalibrationvalueswereallwithintheoriginal

measuringaccuracyspeciﬁcationsofthedevices.Thisappliestothemeasuredvolumeﬂow,the

device'sprimarymeasuredvariable.

Varioustestsandsimulationhaveshownthatoncetheradiioftheedgesonthebluﬀbodyareless

than1mm(0.04in),theresultingeﬀectdoesnothaveanegativeimpactonaccuracy.

Iftheradiioftheedgesonthebluﬀbodydonotexceed1mm(0.04in),thefollowinggeneral

statementsapply(inthecaseofnon-abrasiveandnon-corrosivemedia,suchasinmostwaterand

steamapplications):

• Themeasuringdevicedoesnotdisplayanoﬀsetinthecalibrationandtheaccuracyisstill

guaranteed.

• Alltheedgesonthebluﬀbodyhavearadiusthatistypicallysmallerinsize.Asthemeasuring

devicesarenaturallyalsocalibratedwiththeseradii,themeasuringdeviceremainswithinthe

speciﬁedaccuracyratingprovidedthattheadditionalradiusthatisproducedasaresultofwear

andteardoesnotexceed1mm(0.04in).

Consequently,itcanbesaidthattheproductlineoﬀerslifelongcalibrationifthemeasuringdeviceis

usedinnon-abrasiveandnon-corrosivemedia.

EF200R-C

1) o.r.=ofreading

Sensorswithintegratednominaldiameterreduction

Inmanyapplicationsthenominaldiameterofthecustomer'spipedoesnotmatchthenominal

diameterthatisoptimumforavortexmeter.Asaresult,theﬂowvelocityistoolowforvortex

formationafterthebluﬀbody.Thisisexpressedinsignallossinthelowerﬂowrange.Theﬂow

velocitycanbeincreasedbyreducingthenominaldiameterbyonesizes.Thisenablesthe

installationofthefollowingadapters:

1234

A0034060

abc d

A0019070

A Nominaldiameterreductionbyinstallingvariousadaptersandpipesegmentsinthepipe

B NominaldiameterreductionbyusingtheProwirlwithintegratedlinesizereduction

1 Reducerelement

2 Straightpipesegmentastheinletrun(min.15×DN)upstreamfromthevortexmeter

3 Straightpipesegmentastheoutletrun(min.5×DN)downstreamfromthevortexmeter

4 Expansionelement

• EF200R-C":withsingleinnerdiameterlinesizereduction,e.g.fromDN80(3")toDN50(2")

Thesemodelsoﬀerthefollowingbeneﬁts:

Savingsintermsofcostandtime:theadditionaladaptersarereplacedentirelybyonesingledevice

• Measuringrangeextendedforlowerﬂowrates

• Lowerriskintheplanningphaseassamelengthsareusedcomparedtostandardﬂangeddevices

• Alldevicetypescanbeusedalternativelywithouttheneedforcomplicatedchangestothelayout

• Accuracyspeciﬁcationsidenticaltothoseforstandarddevices

Inletandoutletrunstobeconsidered→Seepage31.

EF200R-C

Measuring system Thedeviceconsistsofatransmitterandasensor.

Twodeviceversionsareavailable:

• Compactversion‒transmitterandsensorformamechanicalunit.

• Remoteversion-transmitterandsensoraremountedinseparatelocations.

Transmitter

EF200-C Deviceversionsandmaterials:

• Compactorremoteversion,aluminumcoated:

Aluminum,AlSi10Mg,coated

Conﬁguration:

• Viafour-linelocaldisplaywithkeyoperationorviafour-line,

• Viaoperatingtools

A0013471

Sensor

EF200R-C

A0034075

Pressuremeasuringcell

A0034080

1 Pressuremeasuringcell

Versions:

Pressurecomponents

• Pressuremeasuringcell40bara

Material

• Wettedparts:

• Processconnection

Stainlesssteel,1.4404/316L

• Membrane

Stainlesssteel,1.4435/316L

• Non-wettedparts:

Housing

Stainlesssteel,1.4404

Flangedversionwithintegratednominaldiameterreduction:

• Twoversionswithadiﬀerentnominaldiameterrangeareavailable:

• "R-type"withsingleinnerdiameterlinesizereduction:DN25Rto

200R(1Rto8R")

• Materials:

• MeasuringtubesDN15to150(½to6"):stainlesscaststeel,CF3M/

1.4408

EF200R-C

Input

Measured variable Directmeasuredvariables

Description Measuredvariable

Mass;316L;316L(integratedtemperaturemeasurement) • Volumeﬂow

• Temperature

Calculatedmeasuredvariables

Versionwithpressuremeasuringcell

Description Measuredvariable

Mass;316L;316L(integratedtemperaturemeasurement) • Correctedvolumeﬂow

• Massﬂow

• Calculatedsaturatedsteampressure

• Energyﬂow

• Heatﬂowdiﬀerence

• Speciﬁcvolume

Measuring range Themeasuringrangeisdependentonthenominaldiameter,theﬂuidandenvironmentalinﬂuences.

Thefollowingspeciﬁedvaluesarethelargestpossibleﬂowmeasuringranges(QmintoQmax )for

eachnominaldiameter.Dependingontheﬂuidpropertiesandenvironmentalinﬂuences,the

measuringrangemaybesubjecttoadditionalrestrictions.Additionalrestrictionsapplytoboth

thelowerrangevalueandtheupperrangevalue.

FlowmeasuringrangesinSIunits

[mm]

Liquids

[m³/h]

Gas/steam

[m³/h]

25R 0.1to4.9 0.52to25

40R 0.32to15 1.6to130

50R 0.78to37 3.9to310

80R 1.3to62 6.5to820

100R 2.9to140 15to1800

150R 5.1to240 25to3200

200R 11to540 57to7300

EF200R-C

FlowmeasuringrangesinUSunits

DN Liquids Gas/steam

[in] [ft³/min] [ft³/min]

1R 0.061to2.9 0.31to15

1½R 0.19to8.8 0.93to74

2R 0.46to22 2.3to180

3R 0.77to36 3.8to480

4R 1.7to81 8.6to1100

6R 3to140 15to1900

8R 6.8to320 34to4300

Flowvelocity

v,Q

A0033468

DiInternaldiameterofmeasuringtube(correspondstodimensionK→Seepage41)

v Velocityinmeasuringtube

Q Flow

TheinternaldiameterofmeasuringtubeDiisdenotedinthedimensionsasdimension

K.→Seepage25.

Calculationofﬂowvelocity:

v[m/s]=

]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

EF200R-C

Lowerrangevalue

Arestrictionappliestothelowerrangevalueduetotheturbulentﬂowproﬁle,whichonlyoccurs

withReynoldsnumbersgreaterthan5000.TheReynoldsnumberisdimensionlessandindicatesthe



ratiooftheinertiaforceofaﬂuidtoitsviscousforcewhenﬂowingandisusedasacharacteristic

variableforpipeﬂows.InthecaseofpipeﬂowswithReynoldsnumberslessthan5000,periodic



vorticesarenolongergeneratedandﬂowratemeasurementisnolongerpossible.

TheReynoldsnumberiscalculatedasfollows:

Re =4·Q[m

/s]· [kg/m

]ρ

·D [m]·µ[Pa·s]π

Re =4·Q[ft³/s]· [lbm/ft³]ρ

·D [ft]·µ[lbf·s/ft ]π

A0034291

Re Reynoldsnumber

Q Flow

DiInternaldiameterofmeasuringtube(correspondstodimensionK→See41)

µ Dynamicviscosity

ρ Density

TheReynoldsnumber,5000togetherwiththedensityandviscosityoftheﬂuidandthenominal

diameter,isusedtocalculatethecorrespondingﬂowrate.

Q [m /h]=

Re=5000 ³

5000 [Pa· ·D [m]· ·s]

πμ

· 3600[s/h]

4[kg/m]·³ρ

Q [ /h]=

Re=5000 ³

5000 [lbf· ·D [ft]· ·s/ft ]

²πμ

· 60[s/min]

4 [lbm/ ]· ³ρ

A0034302

QRe=5000 FlowrateisdependentontheReynoldsnumber

DiInternaldiameterofmeasuringtube(correspondstodimensionK→Seepage41)

µ Dynamicviscosity

ρ Density

Themeasuringsignalmusthaveacertainminimumsignalamplitudesothatthesignalscanbe

evaluatedwithoutanyerrors.Usingthenominaldiameter,thecorrespondingﬂowcanalsobe

derivedfromthisamplitude.Theminimumsignalamplitudedependsonthesettingforthe

sensitivityoftheDSCsensor(s),thesteamquality(x)andtheforceofthevibrationspresent(a).The

valuemfcorrespondstothelowestmeasurableﬂowvelocitywithoutvibration(nowetsteam)ata

densityof1kg/m3(0.0624lbm/ft^3).Thevaluemfcanbesetintherangefrom

6to20m/s(1.8to6ft/s)(factorysetting12m/s(3.7ft/s))withthe Sensitivityparameter(value

range1to9,factorysetting5).

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