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Title: How Three Measurment Needs Are Addressed
Author: A.R. Kahmann
Source: 1983 Appalachian Gas Measurement Short Course
Year Published: 1983
Abstract: Instruments commonly used for measuring pressure are the manometer, the dial or spring-type gauge, and the deadweight gauge. The choice between these instruments usually depends on the pressure being measured, accuracy and repeatability of device, ease of device application in the field, need for device recalibration, and cost of purchasing and maintaining the instrument. The deadweight gauge is the most accurate instrument available for the measurement of pressures above the range of the manometer. Repeatatile readings with accuracies of 1/10 of 1 percent 1 pound in 1000-pounds indicated pressure) or better are obtainable. The device does not require recalibration unless the piston and cylinder have excessive wear or a piston or weights are replaced, is easily transported and set up in the field, requires minimum maintenance, and is simple to operate. With the addition of a pressure pump, valves, and pressure connections, the deadweight gauge becomes a deadweight tester and can be used to calibrate pressure transducers and other, less-accurate pressure gauges.

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