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Title: Improving Bell Prover Automation
Author: Glenn H. Chamberlain
Source: American Gas Association 1976
Year Published: 1976
Abstract: The progression from manual to automatic bell proving of gas meters improved the accuracy of the test data by relieving the operator of the responsibility of visually determining the test results. For the first time the test results were digitally displayed and automatic printers could be employed to prevent transcription errors occurring through manual tabulation. The natural transition of automatic proving evolved from electro-mechanical switching to solid state switching. Considerable changes in the state of the art and the availability of complex electronic integrated circuits at a relative low cost have given rise to another generation of improved equipment with which to automate bell provers. Specifically this improved format deals with the use of pulse generators counting into solid state digital modules.

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