Emerson Micro Motion 9739 MVD

Measurementsupport
Figure9-3D3orD3andD4densitycalibrationusingProLinkII
9.4.2PerformaD3andD4densitycalibrationusing
FieldCommunicator
Prerequisites
•Duringdensitycalibration,thesensormustbecompletelylledwiththecalibrationuid,and
owthroughthesensormustbeatthelowestrateallowedbyyourapplication.Thisisusually
accomplishedbyclosingtheshutoffvalvedownstreamfromthesensor,thenllingthesensor
withtheappropriateuid.
•ForD3densitycalibration,theD3uidmustmeetthefollowingrequirements:
−Minimumdensityof0.6g/cm
3
−Minimumdifferenceof0.1g/cm
3
betweenthedensityoftheD3uidandthedensityofwater.
ThedensityoftheD3uidmaybeeithergreaterorlessthanthedensityofwater.
•ForD4densitycalibration,theD4uidmustmeetthefollowingrequirements:
−Minimumdensityof0.6g/cm
3
−Minimumdifferenceof0.1g/cm
3
betweenthedensityoftheD4uidandthedensityofthe
D3uid.ThedensityoftheD4uidmustbegreaterthanthedensityoftheD3uid.
−Minimumdifferenceof0.1g/cm
3
betweenthedensityoftheD4uidandthedensityofwater.
ThedensityoftheD4uidmaybeeithergreaterorlessthanthedensityofwater.
•Beforeperformingthecalibration,recordyourcurrentcalibrationparameters.Ifthecalibration
fails,restoretheknownvalues.
ConfigurationandUseManual
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