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Title: Effective Use of Deadweight Testers
Author: John A. Kappes
Source: 2022 International School of Hydrocarbon Measurement
Year Published: 2022
Abstract: With the now common use of higher accuracy digital sensors, one of the most critical problems facing measurement managers is the accurate calibration of pressure or differential pressure (DP) measuring instruments. The deadweight gauge or tester is an economical answer to many of these problems, as a deadweight is a primary standard with accuracy expressed in percent of reading. The instrument engineer will typically specify the type of deadweight tester required for the application and the technician will use the standard. For both parties, it is essential to understand certain aspects of deadweight operations, concepts related to the design and functionality, and the best use practices for these instruments. This paper describes the scientific and engineering concepts related to, and methods used to select deadweight testers and gauges. Also included are procedures for using hydraulic and pneumatic deadweight testers.

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