The precision of the precision pressure gauge is 0.1, 0.25, 0.4;
The accuracy of ordinary pressure gauges is 1.0, 1.6 (formerly 1.5), 2.5, 4.0 (basically no more)
Pressure gauges with a surface above 60 are basically class 1.0 and class 1.6
The pressure gauge on the surface of 60 and below is basically 2.5 grade
The diaphragm pressure gauge and diaphragm pressure gauge are generally 2.5 grades
The difference between pressure gauge accuracy and graduation
The minimum graduation of a pressure gauge can be generally regarded as its resolution, but it is not necessarily the accuracy of the gauge.
Because the pressure gauge is a testing instrument, what is displayed to us is the measured value. There is a certain error between the measured value and the real value. The range of this error is actually the accuracy, so the smaller the value of the accuracy, the smaller the value displayed by the testing instrument. The closer to the true value, the higher the credibility.
