Electric contact pressure gauge is a kind of instrument widely used in industrial measurement and control system, its core function is to visually display the size of the measured pressure value through the displacement of the pointer, and realize the upper and lower limits of the pressure alarm or control through the electric contact device.
Weird one: Three Pointers
The pointer of the electric contact pressure gauge is usually composed of a pointer shaft, a pointer blade and a pointer. The pointer shaft is the key component connecting the pointer blade and the transmission mechanism in the watch, ensuring that the pointer can rotate freely within the scale range of the dial.
In addition to the basic indicating function, the electric contact pressure gauge also has an electric contact device for upper and lower pressure alarm or control. When the measured pressure reaches the preset upper or lower limit, the electrical contact device will send an electrical signal to trigger the corresponding alarm or control action. The realization of this function depends on the precise coordination between the pointer and the electrical contact device.
Wonderful two: Most of the working voltage is 220V
It is important to know that most instruments operate at around 24V, and only a few instruments operate at 220V. It brings safety challenges to meter workers. The instrument worker who is not careful will be extremely dangerous when handled as a 24V instrument.
This requires us to find the cooperation of electrical personnel, cut off the 220V power supply and then carry out maintenance and repair.