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Capsule Pressure Gauge

FIGURE 4.14 BOC Edwards Capsule Pressure Gauges (Harris, 2005)... [Pg.133]

EN 837-1 1996 Pressure Gauges - Part 3 Diaphragm and Capsule Pressure Gauges - Dimensions, Metrology, Requirements and Testing... [Pg.395]

This movement is transmitted fo a point by a lever system. The capsule vacuum gauge, designed according to this principle, indicates the pressure on a linear scale, independent of the external atmospheric pressure. [Pg.77]

Capsule vacuum gauges measure pressure accurately to 10 mbar (due to the linear scale, they are least accurate at the low pressure end of the scale). If only pressures below 30 mbar are to be measured, the DIAVAC is... [Pg.78]

Pressure gauges, Part 3 Pressure gauges with plate and capsule elements, dimensions, measurement technology, requirements and testing 2/97... [Pg.180]

DIN EN 837-3 1997-02 Pressure gauges - Part 3 Diaphragm Gauges and Capsule Manometers Dimensions, Measurement Method, Requirements and Testing. [Pg.372]

The best-known design of a diaphragm vacuum gauge is a barometer with an aneroid capsule as the measuring system. It contains a hermetically sealed, evacuated, thin-walled diaphragm capsule made of a copper-beryllium alloy. As the pressure drops, the capsule diaphragm expands. [Pg.77]

The mechanical phenomena gauges measure the actual force exerted by the gas. They include a U-tube, a capsule dial, a strain, a capacitance manometer, a McLeod gauge, etc. Vacuum is measured according to the displacement of an elastic material or by measuring the force required to compensate its displacement. The measurement ranges from atmospheric pressure to 102 Pa in rough vacuum conditions. [Pg.51]

Several types of pressure measurements can be taken. These include absolute pressure, where one side of the capsule is exposed to 0 psia in a sealed chamber. Gauge pressure is measured with one side of the capsule vented to atmosphere. Vapor pressure transmitter seals one side of the capsule, filling it with the chemical composition of the vapor to be measured. The vapor pressure in the sealed chamber is compared with the process pressure (at the same temperature). Ifequal, the compositions are inferred to be equal. This technique is used primarily for binary mixtures as multicomponent compositions have too many degrees of freedom. [Pg.689]


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See also in sourсe #XX -- [ Pg.128 ]




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