Precautions for the use of pressure gauges.

1. The meter must be vertical: use a 17mm wrench to tighten it during installation, and the case should not be twisted; collisions should be avoided during transportation;

2. The instrument should be used in the ambient temperature of -25~55℃;

3. The vibration frequency of the working environment is less than 25HZ, and the amplitude is not more than 1mm;

4. During use, due to the high ambient temperature, the indication value of the instrument does not return to zero or the indication value is out of tolerance, the sealing rubber plug on the upper part of the case can be cut off to make the inner cavity of the instrument communicate with the atmosphere;

5. The use range of the instrument should be between 1/3 and 2/3 of the upper limit;

6. When measuring corrosive media, media that may crystallize, and media with high viscosity, an isolation device should be added;

7. The instrument should be checked frequently (at least once every three months), and if any fault is found, it should be repaired in time;

8. From the date of leaving the factory, if the instrument is found to be invalid or damaged due to poor manufacturing quality under normal storage and use conditions within half a year, the company shall be responsible for repairing or replacing it;

9. Instruments for measuring corrosive media should be used, and the requirements should be specified when ordering.