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Title: Operations and Problems Associated with Prover Detector Switches
Author: Nathan Wilson
Source: 2022 International School of Hydrocarbon Measurement
Year Published: 2022
Abstract: A meter prover is used to calibrate meters to establish a meter factor. The volume that passes through the meter is compared to the known prover volume. This known volume is the displacement of the liquid between the detector switches on the prover. The displacement is measured either by a sphere or piston from the activation of the first detector switch to the activation of the second detector switch. The known volume is typically determined by a calibration known as the waterdraw method. Detector switches are critical in the design of a prover and the ability to establish the known volume to determine a meter factor .

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