Emerson Micro Motion 9739 MVD

Integratethemeterwiththecontrolsystem
7.1.2ConfigureLowerRangeValue(LRV)andUpperRangeValue(URV)
Display
OFF-LINEMAINT→OFF-LINECONFG→IO→AO1/2→4mA
OFF-LINEMAINT→OFF-LINECONFG→IO→AO1/2→20mA
ProLinkII
ProLink→Conguration→AnalogOutput→Primary/SecondaryOutput→LowerRangeValue
ProLink→Conguration→AnalogOutput→Primary/SecondaryOutput→UpperRangeValue
FieldCommunicatorCongure→ManualSetup→Inputs/Outputs→mAOutputX→mAOutputSettings→PV/SVLRV
Congure→ManualSetup→Inputs/Outputs→mAOutputX→mAOutputSettings→PV/SVURV
TheLowerRangeValue(LRV)andUpperRangeValue(URV)areusedtoscalethemAoutput,i.e.,todene
therelationshipbetweenmAOutputProcessVariableandthemAoutputlevel.ThemAoutputusesa
rangeof4–20mAor0–20mAtorepresentmAOutputProcessVariable.BetweenLRVandURV,themA
outputislinearwiththeprocessvariable.IftheprocessvariabledropsbelowLRVorrisesaboveURV,
thetransmitterpostsanoutputsaturationalarm.
Note
IfyouchangeLRVandURVfromfactorydefaultvalues,andyoulaterchangemAOutputProcessVariable,
LRVandURVwillnotberesettothedefaultvalues.Forexample,ifyouconguremAOutputProcessVariable
asmassowandchangetheLRVandURVformassow,thenyouconguremAOutputProcessVariableas
density,andnallyyouchangemAOutputProcessVariablebacktomassow,LRVandURVformassow
areresettotheconguredvalues.
Procedure
1.SetLRVasdesired.
LRVisthevalueofmAOutputProcessVariablerepresentedbyanoutputof0or4mA.Thedefault
valuedependsonthesettingofmAOutputProcessVariable.
EnterLRVinthemeasurementunitsthatareconguredformAOutputProcessVariable.
2.SetURVasdesired.
URVisthevalueofmAOutputProcessVariablerepresentedbyanoutputof20mA.Thedefaultvalue
dependsonthesettingofmAOutputProcessVariable.
EnterURVinthemeasurementunitsthatareconguredformAOutputProcessVariable.
Note
YoucansetURVbelowLRV.Forexample,youcansetURVto50andLRVto100.
DefaultvaluesforLowerRangeValue(LRV)andUpperRangeValue(URV)
EachoptionformAOutputProcessVariablehasitsownLRVandURV.IfyouchangethecongurationofmA
OutputProcessVariable,thecorrespondingLRVandURVareloadedandused.
DefaultvaluesforLRVandURVareshowninTable7-2.
120MicroMotion9739MVDTransmitters