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Title: Field Inspections And Calibration Of Measurement Instruments
Author: Carl Rousseau
Source: 1988 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1988
Abstract: Positive displacement and turbine type metering is commonly used in the measurement of natural gas by distribution, transmission and production companies. These meters would be self sufficient if they could always work at base pressure and base temperature conditions. Unfortunately, this is not the case. When large volumes of gas are to be measured and transported to distant points where it is to be consumed, it must often be done at elevated and varying pressure conditions and varying temperature conditions. When this is the case, adjustments must be made to metered volumes to correct them to the base conditions according to the basic gas laws. This may be done by manual calculation or by auxilliary instrumentation. This instrumentation may be of a data gathering type or a mechanical or electronic integrating type. Since large sums of money may be effected by the accuracy of this type instrumentation, it is important that periodic tests and inspections be performed by qualified personnel.

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