Emerson Micro Motion 9739 MVD

Configureprocessmeasurement
Tip
AlthoughconguringthetemperatureunittomatchthetemperatureunitsusedbyyourAPI
referencetableisnotrequired,
MicroMotionrecommendsit.
5.(Optional)Ifyouwanttousetemperaturedatafromanexternaltemperaturesensor:
a.SetTemperatureSourcetoExternal.
b.Dependingonyourexternalsetup,dooneofthefollowing:
•Setuppollingfortemperature
•Usedigitalcommunicationstowritetemperaturedatatothesensoratappropriateintervals
•CongurethemAinputtoreceivetemperaturedatafromanexternalmeasurementdevice
Youcannowcongureyourtransmittertoreportandhandlepetroleummeasurementprocessvariables
inthesamewaythatitreportsandhandlesotherprocessvariables.
5.9.1Petroleummeasurementapplication
ThepetroleummeasurementapplicationenablesCorrectionfortheeffectofT emperatureonvolumeof
Liquids(CTL),bycalculatingandapplyingaVolumeCorrectionFactor(VCF)tovolumemeasurement.
InternalcalculationsareperformedincompliancewithAmericanPetroleumMeasurement(API)
standards.
APIreferencetablesareusedtocontrolhowCTLiscalculated.YourselectionofAPITableTypespecies
thetypeofprocessuidthatthecalculationswillassume,andtheCTLsourcedata,thereference
temperature,andthedensityunitthatthecalculationswilluse.DependingonyourselectionofAPITable
Type,youmayormaynotneedtospecifyReferenceTemperatureandThermalExpansionCoefcient.See
Table5-11foralistingoftheAPIreferencetablesandrelatedinformation.
Table5-11APIreferencetables,associatedprocessfluids,andassociatedcalculationvalues
TablenameProcessfluidCTLsourcedata
Reference
temperatureDensityunit
5A
Generalizedcrude
andJP4
Observeddensity
andobserved
temperature
60°F(non-
congurable)
DegreesAPI
Range:0to100
5B
Generalized
products
Observeddensity
andobserved
temperature
60°F(non-
congurable)
DegreesAPI
Range:0to85
5DLubricatingoils
Observeddensity
andobserved
temperature
60°F(non-
congurable)
DegreesAPI
Range:−0to+40
6C
Liquidswitha
constantdensity
baseorknown
thermalexpansion
coefcient
User-supplied
referencedensity(or
thermalexpansion
coefcient)
andobserved
temperature
60°F(non-
congurable)
DegreesAPI
92MicroMotion9739MVDTransmitters