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Title: Advancements In Residential And Commercial Meter Proving In The 21st Century
Author: Gregory A. Germ
Source: American Gas Association 2004
Year Published: 2004
Abstract: There have been a number of significant changes made over the past several decades pertaining to gas measurement. The majority of residential gas metering is performed using aluminum-cased diaphragm meters - including newer, compact designs and automated meter reading devices. Light commercial and industrial metering applications primarily use rotary (impeller-type) gas meters, with a number of large aluminum-cased diaphragm meter installations still present. The ultrasonic meter has been accepted as an accurate measurement device for light commercial and industrial loads, and is gradually growing in popularity. Ultrasonic metering is also widely used in transmission metering, as well as gas turbine (inferential) meters. These light commercial, industrial, and transmission gas meters commonly employ advanced electronic correction for pressure and temperature. Gas meter proving equipment, however, has made modest changes over the past several decades. The most significant changes to the gas meter prover have occurred over the past fifteen years. Most of the changes made to gas meter proving equipment have paralleled advancements in computer and electronics technologies. The purpose of the gas meter prover is evolving from a stand-alone prover to a proving and data management tool - not only is it critical for the gas meter prover to accurately prove all size gas meters in the most efficient manner, the prover has become an integral part of a utilitys meter management system. The following discussion will focus on the gas meter prover and the on-going advancements made to gas meter proving into the 21st century. Current proving methods will be compared to those methods used in the past. Finally, future considerations will be made to help the gas meter prover meet the needs of gas utilities in the upcoming years.

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