Transcription of MICRO MOTION WHITE PAPER - Emerson
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MICRO MOTION WHITE PAPER - Emerson
MOTION WHITE PAPERWP-001287 / 2011 MICRO MOTION , Inc. All rights for the effects of high pressure on the measurement accuracy of Coriolis flowmetersIntroductionIn some applications that use Coriolis flowmeters for the measurement of liquid and gas, the effects of changes in pressure on the accuracy of the measurement data are insignificant. However, for custody transfer or other applications where high accuracy is required, it may be necessary to correct the flow data to compensate for the effects of an operating pressure that is different from the calibration pressure. Many meters have the built-in capability to perform this compensation some flowmeters that use Coriolis technology, pressure can cause a span error. Span is a generic term describing a coefficient used to establish a device s linear relationship between its input and output over a given operating range.
MICRO MOTION WHITE PAPER Page 2 of 4 transfer, the pressure effect would have to be calculated and applied separately for each data point to ensure an
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