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Title: Liquid Flow Provers Conventional()
Author: Charles J. Mcntz
Source: 1994 International School of Hydrocarbon Measurement
Year Published: 1994
Abstract: The mechanical displacement meter prover is a field calibration standard that provides a practical means to determine the volume of liquid flow within very precise limits. The proliferation of this device in liquid measurement applications has resulted in a vast difference in the techniques used for liquid measurement as compared to those commonly used for gas measurement. In-situ calibration of gas flowmeters is not a common practice, and gas flow is usually measured to an accuracy in the range of 1% of scale. Displacement type meter provers, providing on-line calibration of liquid flowmeters have become commonplace, and as a result the volumetric measurement of liquids to 0.1% of reading is readily achievable. Meter provers are principally used for the custody transfer measurement of liquid petroleum products ranging from LPG to heavy crude oils, and the proper design and construction of these devices is essential to meet the accuracy standards for this service. This paper focuses on providing a clear understanding of the critical parameters that affect the performance of so called conventional meter provers.

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