Vacuum pressure gauges are suitable for measuring the pressure of liquids, gases, or vapors that are non explosive, non crystalline, non solidifying, and have no corrosive effect on copper and copper alloys. A vacuum gauge is an instrument used to measure pressures below atmospheric pressure.
Vacuum pressure gauge is a commonly used measuring instrument with certain applications in many fields. There are also many issues that users need to pay attention to when using a vacuum pressure gauge. For example, various issues such as measurement range and temperature.
The operating temperature of the vacuum pressure gauge is -40~70 ℃, and the relative humidity is not more than 80%. If it deviates from the normal operating temperature by 20 ℃, it must be included in the temperature additional error. The vacuum pressure gauge must be installed vertically, striving to be at the same level as the measuring point. If the difference is too high, it will be included in the additional error caused by the liquid column, which does not need to be considered when measuring gases. Block the explosion-proof port at the back of the watch case during installation to avoid affecting the explosion-proof performance.
The normal measurement range of a vacuum pressure gauge should not exceed 3/4 of the upper measurement limit under static pressure and 2/3 of the upper measurement limit under fluctuation. Under the above two pressure conditions, the minimum measurement of the large pressure gauge should not be lower than 1/3 of the lower limit, and all vacuum parts should be used when measuring vacuum.
That's all for the introduction about vacuum pressure gauges above. I hope it can be helpful for your understanding.
