Emerson Micro Motion 9739 MVD

Configureprocessmeasurement
tExample:Definingaspecialmeasurementunitformassflow
Youwanttomeasuremassowinouncespersecond.
1.SetBaseMassUnittoPounds(lb).
2.SetBaseTimeUnittoSeconds(sec).
3.CalculateMassFlowConversionFactor:
a.1lb/sec=16oz/sec
b.MassFlowConversionFactor=1/16=0.0625
4.SetMassFlowConversionFactorto0.0625.
5.SetMassFlowLabeltooz/sec.
6.SetMassTotalLabeltooz.
5.2.2ConfigureFlowDamping
DisplayNotavailable
ProLinkII
ProLink→Conguration→Flow→FlowDamp
FieldCommunicatorCongure→ManualSetup→Measurements→Flow→FlowDamping
Dampingisusedtosmoothoutsmall,rapiductuationsinprocessmeasurement.TheDampingValue
speciesthetimeperiod(inseconds)overwhichthetransmitterwillspreadchangesinthereported
processvariable.Attheendoftheinterval,thereportedprocessvariablewillreect63%ofthechange
intheactualmeasuredvalue.
Tips
•Ahighdampingvaluemakestheprocessvariableappearsmootherbecausethereportedvalue
mustchangeslowly.
•Alowdampingvaluemakestheprocessvariableappearmoreerraticbecausethereported
valuechangesmorequickly.
Procedure
SetFlowDampingtothedesiredvalue.
Thedefaultvalueis0.8seconds.Therangeis0to10.24seconds.WhenyouenteravalueforFlow
Damping,thetransmitterautomaticallyroundsitdowntothenearestvalidvalue.ThevalidvaluesforFlow
Dampingare:0,0.04,0.08,0.16,...10.24.
Tips
Forgasapplications,MicroMotionrecommendssettingFlowDampingto2.56orhigher.
ConfigurationandUseManual
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