Pressure gauges are inherently highly sensitive and precise instruments. During use, they are susceptible to various factors, including human and environmental factors, which can lead to safety hazards and measurement errors. Therefore, technicians must strictly follow established application procedures when using pressure gauges and be aware of factors that may affect test results. When using a pressure gauge, ensure that it remains vertical. When tightening, generally use a 17mm wrench to avoid damaging the gauge housing by force. If a pressure gauge is transported for work purposes, it should be wrapped with cushioning material to reduce bumps and mechanical damage. Pressure gauges have specific vibration frequency requirements for their operating environment. Technicians must manually control the vibration frequency to within 25Hz, and the amplitude must not exceed 1mm. The safe operating range of a pressure gauge varies from gauge to gauge. Generally, it is approximately 50% to 60% of the upper limit of the gauge value. Exceeding this range may damage the gauge, so flexibility is required when selecting and replacing pressure gauges. To ensure the service life of the pressure gauge, it is necessary to avoid direct contact between the pressure gauge and corrosive substances or oxidizing substances during specific application. If the pressure gauge must be used in a special environment due to testing requirements, the pressure gauge can be isolated and sealed before use. When the pressure gauge is operating in a high-temperature environment, it may have problems such as the indicator needle exceeding the value or being unable to return to zero. This problem is relatively common in practice. The technician only needs to remove the rubber plug and let the outside air enter the dial to solve it. If there are a lot of corrosive substances in the production environment, when purchasing a pressure gauge, you should give priority to the type of pressure gauge with strong corrosion resistance. At the same time, the pressure gauge needs to be maintained and inspected every 90 days to ensure the service life of the pressure gauge.
