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Title: Correcting Instruments For Displacement And Turbine Gas Meters
Author: D. R. Fulton
Source: 1976 International School of Hydrocarbon Measurement
Year Published: 1976
Abstract: In gas measurement the meter is considered the basic element of measurement. It provides the measure of volume of the gas at line conditions. When using displacement type meters such as rotary or diaphragm type, and in many applications of the turbine gas meter, volume through the meter is indicated by a continuously driven index. If line conditions are at low pressure (close to atmospheric), the meter index indicates the volume through the meter in cubic feet and no additional correction is required. When metering takes place under conditions of variable line pressure and/or temperature it is necessary to provide a meter mounted instrument which will account for these variations. The instrument could be either a recording type, utilizing a circular chart, or an indicating type giving direct readout in corrected cubic feet.

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