Stainless steel pressure gauge verification Seismic stainless steel pressure gauge is mainly used for pressure detection in metallurgy, electric power, petroleum, chemical, light industry, machinery and other industrial sectors. Stainless steel pressure gauges rely on internal filling damping oil and supporting buffer devices and other measures. It has good seismic resistance. It is suitable for occasions where the pressure of the measured medium has a strong pulse change or pressure shock and often suddenly discharges in the production process, as well as places with large environmental vibration. The instrument can measure the average value of gas and liquid pulsating pressure. To overcome the damage caused by the strong pulse of the medium and the environmental vibration to the instrument, to ensure the accuracy of the reading.

In order to make the service life of the stainless steel pressure gauge long, it is necessary to verify the indicating error, the return error, and the tapping displacement. Let's take a look below:

The method of indicating value error verification: The indicating value verification of the stainless steel pressure gauge is carried out according to the numbered index line, and the pressure is gradually and steadily increased (or decreased) during the verification. When the indicating value reaches the detection upper limit, the pressure source is cut off, the pressure is withstand for 3MIN, and then the pressure is steadily decreased (or increased) in reverse order according to the original detection point.

Return error, for the same point check time, in the boost (or buck) and buck (or boost) verification, the allowable error value specified in Table 1.

Tap the displacement, for each point detection time, in the boost (or buck) and buck (or boost) verification, the change in the indication value caused by the lightweight case is not greater than 1/2 of the allowable error value specified in Table 1.

For each detection point, we remind you that in the boost (or buck) and buck (or boost) verification, the difference between the front and rear values of the lightweight case and the value of the standard should meet the requirements.

Then the above verification of stainless steel pressure gauges is introduced here, and I hope to help you understand.