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Title: Gas Meter Proving: The Equipment And Methodology Used Today In The Natural Gas Industry
Author: Gregory A. Germ
Source: 2005 Appalachian Gas Measurement Short Course
Year Published: 2005
Abstract: To determine the accuracy of a natural gas meter, a known volume of air is passed through the meter, and the meter registration is compared against this known volume. The known volume of air originates from the meter prover. In earlier times, the gas meter prover was a stand-alone device (usually a bell-type prover), manually operated without any electronics or automation. Today, the majority of gas meter provers are fully automated computer controlled and operated, and responsible for other job functions besides the proving of gas meters. The bell-type meter prover - though still commonly used in the industry - is not the only kind of meter prover used today. The advancements and developments in electronics and computer technology has lead to an evolution of meter proving equipment - far from the manual proving methods that were commonplace only a few decades ago. Many utilities have replaced the bell-type prover with sonic nozzle and transfer provers. Provers can now store and retrieve information from a utilitys meter management system, reduce the human error factor in the proving operation, and provide self-diagnostics to assist the prover operator in maintenance and in troubleshooting problems.