Abstract
In the article, the need to create a master meter prover for verifying gas meters in the gas volume flow range up to 6500 m3/h in SE Ivano-Frankivskstandardmetrology is presented. An analysis of the existing prover’s types was carried out, indicating the advantages and disadvantages. Reasonable selection master meters of the rotary, turbine and drum type as part of the prover. Features the master meters volume flow ranges, which overlap each other, are determined. The stages of modeling the piping of the reference prover are given. The stages the calibration methodology the reference prover are described. The initial stage involves the calibration of pressure and temperature sensors, which are mounted as part of the prover to exclude the influence of the installation. Calibration the master meters is carried out with the help of transfer standards, which are calibrated on national standards gas volume and volume flow rate. The components of uncertainty that affect the calculation of expanded uncertainty are described in detail. The features of the developed prover software, which contains the requirements of new verification methods for gas meters of various types, are given.
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