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Title: Meter Proving: Function Of Flow Rate Or Fluid Properties Too
Author: Zaki Husain
Source: 2016 International School of Hydrocarbon Measurement
Year Published: 2016
Abstract: The current industry practice is to prove a meter when the flow rate change is anticipated to influence the meter performance beyond the allowable tolerance of shift in Meter Factor (MF). For example, if the acceptable shift in MF is defined to be less than +/- 0.1%, then a change in flow rate that is anticipated to shift the MF by more than +/-0.1% should initiate a proving of the meter to establish the new meter factor for the operating flow rate. Typically meters with moving parts, e.g. displacement or turbine flow meter, are field proven, if change in flow rate is greater than 10% or whatever is pre-selected amount of percentage change from its operating flowrate at which the meter was last proved. If the meter performance is characterized for a given fluid and MF can be pre-defined as a function of flow rate for the given fluid, then instead of proving the meter against a reference (prover or master meter-transfer proving), the calculated MF for the operating flow rate is often implemented to correct for the anticipated change in meter factor for the actual flow rate.

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