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Title: A Search For Environmental Factors Affecting Meter Testing Accuracy
Author: Ralph C. Stanford,
Source: American Gas Association 1971
Year Published: 1971
Abstract: AS so often happens, the study which was a search for factors that affect diaphragm meter proof testing accuracy was a natural outgrowth of a study of much less scope. The original study was to test statistically the effectiveness of an automatic temperature correction device on bell-type meter provers. This correction was to be accomplished by an electronic device connected to the digital readout of the prover which senses, through thermistor probes, the temperature of the air in the bell and at the outlet of the meter being tested. The difference in temperature at the (wo locations is converted to an electrical signal by the device and fed into digital readout to reflect automatically the temperature correction. The question that needed to be answered was whether it in fact would correct for minor temperature variations which were evident in the meter testing areas within the meter shop.

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