The difference between vacuum pressure gauge and vacuum gauge is shown in detail
The names of vacuum pressure gauge and vacuum gauge seem to be the same, but they are actually different, because vacuum pressure gauge is an instrument used to measure greater than or less than atmospheric pressure based on atmospheric pressure; The vacuum gauge is based on the atmospheric pressure and is used to measure instruments less than atmospheric pressure. So the two are easily confused. However, it is still difficult to distinguish such a general introduction. It is necessary to distinguish the vacuum pressure gauge from the vacuum gauge in specific details.
Since vacuum pressure gauge and vacuum gauge are two different instruments, they must be different in manufacturing process, parameter setting and internal structure. However, the biggest difference is that the electric contact pressure vacuum pressure gauge is mainly used to measure the pressure and negative pressure of non corrosive and non explosive non crystalline non solidified liquid, gas and other media of copper and copper alloy. When the measured pressure and negative pressure reach the predetermined value, the pressure gauge can be connected or disconnected from the control circuit through the function of the contact device, and at the same time, it can send an electrical signal. The shock proof vacuum gauge is mainly used to measure the negative pressure of non corrosive and non crystalline medium under vibration and pressure fluctuation. It can be seen that it can only measure the pressure less than atmospheric pressure, and its application is very limited.
