Emerson Micro Motion 9739 MVD

Configureprocessmeasurement
5.3.3ConfigureVolumeFlowCutoff
DisplayNotavailable
ProLinkII
ProLink→Conguration→Flow→VolFlowCutoff
FieldCommunicatorCongure→ManualSetup→Measurements→Flow→VolumeFlowCutoff
VolumeFlowCutoffspeciesthelowestvolumeowratethatwillreportedasmeasured.Allvolume
owratesbelowthiscutoffwillbereportedas0.
Procedure
SetVolumeFlowCutofftothedesiredvalue.
ThedefaultvalueforVolumeFlowCutoffis0.0L/s.Thelowerlimitis0.Theupperlimitisthesensor’sow
calibrationfactor,inunitsofL/s,multipliedby0.2.
InteractionbetweenVolumeFlowCutoffandAOCutoff
VolumeFlowCutoffdenesthelowestliquidvolumeowvaluethatthetransmitterwillreportasmeasured.
AOCutoffdenesthelowestowratethatwillbereportedviathemAoutput.IfmAOutputProcessVariableis
settoVolumeFlowRate,thevolumeowratereportedviathemAoutputiscontrolledbythehigherof
thetwocutoffvalues.
VolumeFlowCutoffaffectsbothvolumeowvaluesreportedviaoutputsandvolumeowvaluesusedin
othertransmitterbehavior(e.g.,eventsdenedonvolumeow).
AOCutoffaffectsonlyowvaluesreportedviathemAoutput.
tExample:CutoffinteractionwithAOCutofflowerthanVolumeFlowCutoff
Conguration:
•mAOutputProcessVariablefortheprimarymAoutput:VolumeFlowRate
•FrequencyOutputProcessVariable:VolumeFlowRate
•AOCutofffortheprimarymAoutput:10liters/second
•VolumeFlowCutoff:15liters/second
Result:Ifthemassowratedropsbelow15liters/second,volumeowwillbereportedas0,and0
willbeusedinallinternalprocessing.
tExample:CutoffinteractionwithAOCutoffhigherthanVolumeFlowCutoff
Conguration:
•mAOutputProcessVariablefortheprimarymAoutput:VolumeFlowRate
•FrequencyOutputProcessVariable:VolumeFlowRate
•AOCutofffortheprimarymAoutput:15liters/second
•VolumeFlowCutoff:10liters/second
ConfigurationandUseManual
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