Measurementsupport
Figure9-1D1andD2densitycalibrationusingProLinkII
9.3.2PerformaD1andD2densitycalibrationusing
FieldCommunicator
Prerequisites
•Duringdensitycalibration,thesensormustbecompletelylledwiththecalibrationuid,and
owthroughthesensormustbeatthelowestrateallowedbyyourapplication.Thisisusually
accomplishedbyclosingtheshutoffvalvedownstreamfromthesensor,thenllingthesensor
withtheappropriateuid.
•
D1andD2densitycalibrationrequireaD1(low-density)uidandaD2(high-density)uid.You
mayuseairandwater.
•
Thecalibrationsmustbeperformedwithoutinterruption,intheordershown.Makesurethatyou
arepreparedtocompletetheprocesswithoutinterruption.
•Beforeperformingthecalibration,recordyourcurrentcalibrationparameters.Ifthecalibration
fails,restoretheknownvalues.
Restriction
ForT-Seriessensors,theD1calibrationmustbeperformedonairandtheD2calibrationmustbe
performedonwater.
170MicroMotion9739MVDTransmitters