Anhui Star Control Instrument Co., Ltd.

Anhui Star Control Instrument Co., Ltd.

Daily inspection during use of pressure gauges

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 all 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.
The following 4 types of pressure gauges require mandatory verification:
1. pressure gauges used for safety protection require mandatory verification. Includes the following 7 categories:
1) Measurement of boiler main cylinder and water pressure location;
2) Measurement of the pressure of the fixed air compressor and the total pressure in the air compressor;
3) Measurement of generator, gas turbine oil pressure and locomotive pressure;
4) Measurement of medical autoclave and autoclave pressure;
5) Measurement of pressure with alarm device;
6) Measurement of the pressure of the sealed pressurized container;
7) Measurement of harmful, toxic, corrosive and severe medium pressure. (For example: spring tube pressure gauge, electric remote transmission and electric contact pressure gauge).
2. The wind pressure table used for safety protection needs mandatory verification. That is: the measurement of wind pressure and wind speed in a mine shaft. (such as: mine wind pressure table, mine anemometer).
3. The oxygen meter used for safety protection needs mandatory verification. Includes the following 2 categories:
1) Measurement of oxygen monitoring pressure during filling of oxygen cylinders;
2) Measurement of oxygen pressure that is explosive and affects safety during the process.
4. Oxygen meters used for medical and health needs mandatory verification. The measurement of oxygen pressure on buoy-type oxygen inhalers and oxygen supply devices for oxygen delivery in hospitals.
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 all 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.
The following 4 types of pressure gauges require mandatory verification:
1. pressure gauges used for safety protection require mandatory verification. Includes the following 7 categories:
1) Measurement of boiler main cylinder and water pressure location;
2) Measurement of the pressure of the fixed air compressor and the total pressure in the air compressor;
3) Measurement of generator, gas turbine oil pressure and locomotive pressure;
4) Measurement of medical autoclave and autoclave pressure;
5) Measurement of pressure with alarm device;
6) Measurement of the pressure of the sealed pressurized container;
7) Measurement of harmful, toxic, corrosive and severe medium pressure. (For example: spring tube pressure gauge, electric remote transmission and electric contact pressure gauge).
2. The wind pressure table used for safety protection needs mandatory verification. That is: the measuremen
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