General pressure gauge how to maintenance?

1, after a period of use, and pressure, pressure gauge movement deformation and wear, hard to avoid can appear some pressure gauge can produce all kinds of errors and failures. In order to guarantee the accuracy of its original without distortion, dissemination should be replaced in a timely manner, to ensure that the correct, safe and reliable. 2, pressure gauges need to clean them regularly. Because the interior of the pressure gauge is not clean, will increase the wear parts, thus affecting its normal work, serious can make the pressure gauge failure, scrap. 3, the pressure on the installation of pressure gauge, according to the JJG52 - 2013 regulations, pressure gauge calibration cycle can be used according to the environment and how often are used to determine, generally no more than 6 months. Pressure gauge is related to production safety, and environmental monitoring, verification cycle must be according to the verification regulation, can only be less than 6 months; If the industrial and mining conditions, the verification cycle must be shorter. 4 and pressure medium to large fluctuations, used frequently, the accuracy of the demand is higher, and more strict with safety factor, will test cycle shorten appropriately according to the specific situation. The following four kinds of pressure gauges need compulsory verification of 11 categories: 1, the pressure gauge should be used for safety protection compulsory verification. Includes the following seven categories: 1) Boiler main cylinder and parts of the feed water pressure measurement; 2) Stationary air compressor air warehouse and manifold pressure measurement; 3) Generators, steam turbine oil pressure and locomotive pressure measurement; 4) Medical autoclave, pressure cooker, pressure measurement; 5) With alarm pressure measurement; 6) Sealing pressure container pressure measurement; 7) Hazardous, toxic, corrosive medium serious pressure measurement. （ Such as: bourdon tube pressure gauge, electric remote transmission and electric contact pressure gauge) 。 2, wind pressure table for a safety protection should be compulsory verification. I. e. , the mine roadway in wind pressure, wind speed measurement. （ Such as: mine, mine anemometer wind pressure table) 。 3, oxygen gauge should be compulsory verification for safety protection. Includes the following two categories: 1) In the process of filling oxygen bomb oxygen monitoring pressure measurement; 2) In the process of explosive, affecting the safety of oxygen pressure measurement. 4, oxygen gauge should be compulsory verification for medical and health care. The hospital oxygen with buoy type oxygen inhaler and oxygen supply device oxygen pressure measurement.