Vacuum pressure gauges are suitable for measuring the pressure of liquids, gases or vapors that are non-explosive, non-crystallizing, non-solidifying and non-corrosive to copper and copper alloys. Vacuum gauge is an instrument that is used to measure less than atmospheric pressure based on atmospheric pressure.

Vacuum pressure gauge is a commonly used measuring instrument, which has a certain application in many fields. There are many problems that users need to pay attention to when using vacuum pressure gauges. For example, the measurement range, temperature and other problems.

The ambient temperature of the vacuum pressure gauge is -40~70 ° C, and the relative humidity is not more than 80%. If it deviates from the normal operating temperature by 20 ° C, it must be included in the temperature additional error. Vacuum pressure gauge must be installed vertically, and strive to maintain the same level with the measurement point, such as the difference is too high into the liquid column caused by the additional error, the measurement of gas can not be considered. When installing, block the explosion-proof opening at the back of the case so as not to affect the explosion-proof performance.