Ankang Mano Instrument Co.,ltd

Pressure gauges can help people monitor product quality and equipment safety in many areas, therefore its accuracy is very important.

The accuracy of a pressure gauge is not only related to the accuracy level and production process of the pressure gauge itself, but is also affected by some external factors.

1. Ambient temperature

The core principle of the pressure gauge is: The pressure can cause the elastic element - the spring tube to elastically deform to drive the pointer.

The temperature can also cause the spring tube to deform due to thermal expansion and contraction, especially pressure gauges that have been exposed to high temperatures for a long time. Therefore, when using the pressure gauge, sites with abnormal temperatures should be avoided as much as possible. If it is unavoidable, certain measures can be taken for the pressure gauge, such as installing a condenser tube or insulation device.

2. Environmental vibration

If the pressure gauge is exposed to vibration for a long time, it is not only detrimental to data reading, but the accuracy and sensitivity will also be affected.

Some pressure gauges have certain earthquake resistance, However, if the vibration is severe, you need to consider installing shock-absorbing devices such as buffer tubes.

3. Overload

Overloading a pressure gauge does more than just make the pointer reach the maximum indication on the dial. In fact, the maximum working pressure of the pressure gauge should not exceed 2/3 of the range, when it exceeds the 2/3 position, the elastic element of the pressure gauge is close to the limit state.

Long-term overloading of the pressure gauge will weaken or even lose the elasticity of the internal components. Be sure to promptly check and replace pressure gauges that have been under heavy load for a long time.