Pressure gauge (English name: pressure gauge) refers to an instrument that uses elastic elements as sensitive elements to measure and indicate the pressure higher than the environment. It is widely used in almost all industrial processes and scientific research fields. It can be seen everywhere in the fields of heating pipe network, oil and gas transportation, water supply and gas supply system, automobile maintenance factory, shops and so on.
Especially in the process of industrial process control and technical measurement, mechanical pressure gauges are widely used because of their high mechanical strength and convenient manufacture.
Pay attention to use
1, the instrument must be vertical: it should be tightened with a 17mm wrench during installation, and the shell cannot be forcibly twisted; Collision should be avoided during transportation.
2. The instrument should be used at 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 65438 0 mm..
4. In use, because the ambient temperature is too high, the indicated value of the instrument does not return to zero or the indicated value is out of tolerance. You can cut off the sealant plug on the upper part of the case to make the instrument cavity communicate with the atmosphere.