What is the accuracy of pressure gauge?

The accuracy level of the pressure gauge refers to the percentage of the allowable error of the pressure gauge in the full range

For example, if the full range of a pressure gauge is 100Mpa and the accuracy class is 1.6, then its allowable error is 100Mpa × 1.6%=±1.6Mpa。 If the accuracy grade is 1.5, the allowable error is 100Mpa × 1.5%=±1.5Mpa。

Under normal use conditions, the accuracy of the instrument measurement results is called the accuracy of the instrument. The smaller the reference error is, the higher the accuracy of the instrument is. The reference error is related to the range of the instrument. Therefore, when using instruments with the same accuracy, the range is often compressed to reduce the measurement error. In industrial measurement, in order to indicate the quality of the instrument, the accuracy level is usually used to indicate the accuracy of the instrument. The accuracy level is to remove the positive, negative and percent signs from the maximum reference error. Accuracy grade is one of the important indexes to measure the quality of instruments.

In industrial measurement, in order to express the quality of the instrument easily, the accuracy level is usually used to express the accuracy of the instrument The accuracy level is to remove the positive, negative and percent signs from the maximum reference error. Accuracy grade is one of the important indexes to measure the quality of instruments.

Instrument precision=(maximum absolute error/instrument range) * 100%

The absolute value of the above formula minus% is the precision level we see.

How to define the current 1.5 class pressure gauge?

According to the current national standards for pressure gauges, the accuracy class is 1.6. The allowable error of 1.5 level pressure gauges in use is calculated as 1.6, and the accuracy class can not be changed.