Selection of Pressure Gauge

Shanghai QualityWell Industrial Co.,Ltd
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Selection of Pressure Gauge

1.Accuracy Grade

The accuracy grade should be determined according to the requirement of production technology, economy and practicality, detection method, and the allowable error required by the minimum measured pressure. Pressure gauges for general measurement, diaphragm box pressure gauges and diaphragm pressure gauges should be 1.6 or 2.5 grades. For precision pressure gauge ,grades 0.4, 0.25 or 0.16 should be selected.

2.Measurement Range:

a. When measuring stable pressure, the normal operating pressure should be 1/3 to 2/3 of the upper limit of the measuring range of the instrument.

b. When measuring the fluctuating pressure (such as the pressure at the outlet of pump, compressor and fan), the normal operating pressure should be 1/3 to 1/2 of the upper limit of the measuring range of the instrument.

c. When measuring high and medium pressure (greater than 4 MPa), the normal operating pressure should not exceed 1/2 of the upper limit of the measuring range of the instrument.

Selection of Pressure Gauge

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