Emerson Micro Motion 9739 MVD

Configureprocessmeasurement
Defineaspecialmeasurementunitforvolumeflow
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ProLinkII
ProLink→Conguration→SpecialUnits
FieldCommunicatorCongure→ManualSetup→Measurements→SpecialUnits→VolumeSpecialUnits
Aspecialmeasurementunitallowsyoutoreportprocessdata,totalizerdata,andinventorydataina
unitthatisnothard-codedinthetransmitter.Aspecialmeasurementunitiscalculatedfromanexisting
measurementunitusingaconversionfactor.
Restriction
Althoughyoucannotdeneaspecialmeasurementunitusingthedisplay,youcanusethedisplayto
selectanexistingspecialmeasurementunitandtoviewprocessdata.
Procedure
1.SpecifyBaseVolumeUnit.
BaseVolumeUnitistheexistingvolumeunitthatthespecialunitwillbebasedon.
2.SpecifyBaseTimeUnit.
BaseTimeUnitistheexistingtimeunitthatthespecialunitwillbebasedon.
3.CalculateVolumeFlowConversionFactorasfollows:
a.xbaseunits=yspecialunits
b.VolumeFlowConversionFactor=x/y
4.EntertheVolumeFlowConversionFactor.
5.SetVolumeFlowLabeltothelabeltobeusedforthevolumeowunit.
6.SetVolumeTotalLabeltothelabeltobeusedforthevolumetotalandvolumeinventoryunit.
Thespecialmeasurementunitisstoredinthetransmitter.Youcancongurethetransmittertousethe
specialmeasurementunitatanytime.
tExample:Definingaspecialmeasurementunitforvolumeflow
Youwanttomeasurevolumeowinpintspersecond.
1.SetBaseVolumeUnittoGallons(gal).
2.SetBaseTimeUnittoSeconds(sec).
3.Calculatetheconversionfactor:
a.1gal/sec=8pints/sec
b.VolumeFlowConversionFactor=1/8=0.1250
4.SetVolumeFlowConversionFactorto0.1250.
5.SetVolumeFlowLabeltopints/sec.
6.SetVolumeTotalLabeltopints.
72MicroMotion9739MVDTransmitters