HONGQI INSTRUMENT (CHANGXING) CO.,LTD CHINA

Pressure gauge industry experts, the biggest pressure gauge manufacturers in China

Home > NEWS > Content
Pressure Gauge Accuracy
- Jan 13, 2017 -

1. Pressure gauge accuracy is reflected by test tables in comparison with the precision table, indicates the accuracy value closer to the real value. Its absolute value equal to the maximum basic errors with the measuring cap the ratio of percentage is based on the validation errors in the size of the decision.

2. China general industrial pressure gauge accuracy is divided into 4 levels, conformto the JJG52-1999 of the Bourdon tube pressure gauge, pressure vacuum gauge verification regulation of the pressure gauge to the vacuum gauge and the development of tolerance. 4 accuracy class are: level 1, 1.6, 2.5, 4 level. Permissible error(calculated by measuring the percentage of limit) ± 1%, respectively 4% ± 1.6% ± 2.5% ±.

3. 2005, China announced a new digital pressure gauge verification procedures implemented, in line with the JJG875-2005 of the digital manometer verification regulations. Provides accuracy pressure ± 0.02% ± ± 0.01%, respectively 0.05%, ± 0.1% ± 0.2% ± 0.5% ± 1% ± 1.6%.

4. Select the pressure gauge accuracy and reasonable means, should be based onproduction, economical and practical, detection methods, such as request, according to the measured pressure minimum value required to allow the error to select the accuracy class.