1, after a period of use and pressure, the pressure gauge movement will inevitably appear some deformation and wear, the pressure gauge will produce a variety of errors and failures. In order to ensure its original accuracy without distorting the value, it should be replaced in time to ensure that the instructions are correct, safe and reliable.
2, pressure gauges should be cleaned regularly. Because the inside of the pressure gauge is not clean, it will increase the wear of various parts, which will affect its normal work, and will seriously cause the pressure gauge to malfunction and be scrapped.
3. The pressure gauge installed in the pressure measurement site, according to the provisions of JJG52-1999, its verification period generally does not exceed six months. For pressure gauges related to production safety and environmental monitoring, the verification period must be in accordance with the verification procedures, which can only be less than six months; if the conditions for mining and mining are poor, the verification period must be shorter.
4. The pressure measurement site has large fluctuations in medium, frequent use, high accuracy requirements, and strict requirements on safety factors. The verification cycle can be appropriately shortened according to specific conditions.
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