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Title: Transfer Provers
Author: John D. Gray
Source: 1995 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1995
Abstract: A Transfer Prover consists of a master meter mechanically set to zero percent error. It is equipped to read temperature, pressure and correcting for any difference between the master and fleld meter- Transfer Prover 12185 was my first prover. It came to me in 1975. Technology has moved rapidly in the gas industry with provers now being rim by laptop computers. This enables field technicians to pre-conflgure and save to the menu any meters and their desired flow rates. The latest provers warn of high differential, low test times, questions as to your purging meter of gas after blocking meter in, and taking pressure off the meter. If your transducers sense any pressure, it is programmed not to allow the test run to start. This safety feature should make you attend to any gas leaking by the valves that have the meter isolated from flow of gas to customers.

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