Earthquake-resistant magnetic pressure gauge structure principle and wiring principle

Seismic magnetic-assisted pressure gauge consists of measuring system, indicating device, magnetic assisted electrical contact device, housing, adjusting device and junction box.

When the measured pressure acts on the spring tube, the corresponding elastic deformation-displacement occurs at the end of the spring tube. After being amplified by the transmission mechanism, the indicator device is indicated on the dial. At the same time, the pointer drives the momentary contact between the movable contact of the electrical contact device and the contact (upper or lower limit) on the setting pointer, which causes the control system to switch on or off the circuit so as to achieve the purpose of automatic control and signaling alarm.

The electric contact signal of the electric contact device is equipped with an adjustable permanent magnetic steel, which can increase the contact suction force and speed up the contact action, so that the contact contact is reliable, the arc is eliminated, the instrument can effectively avoid the vibration due to the working environment or the medium Pressure pulsation causes the contact to close frequently. Therefore, the instrument has the advantages of reliable operation, long service life, and large contact switching power.

Earthquake-resistant magnetic pressure gauge wiring principle:

Need to increase an intermediate relay, electrical contact pressure gauge has a high pressure point, a midpoint, a low pressure point, current direction: FireWire into the midpoint, through the low pressure point, to the intermediate relay 1 group of contacts normally closed point, to One end of the contactor coil and the other end of the relay coil is connected to the neutral line. Select a group of contactors on the normally open contact, 2 end parallel to the pressure gauge low pressure and midpoint end. The middle relay is controlled from the midline of the pressure gauge to the high pressure point to the middle relay coil, and the middle relay coil is connected to the neutral line at the other end.

Earthquake-magnetic pressure gauge application:

Seismic magnetic-assisted pressure gauges are suitable for measuring the pressure of copper alloys without corrosive, non-explosive, amorphous liquids, gases and other media. After the instrument is used in conjunction with the corresponding electrical device, it can achieve the purpose of dual-position automatic control and signaling (alarm) to achieve the preset maximum or minimum pressure value of the measured pressure system. The instrument has the function of measurement and control, and it can arbitrarily set the upper and lower control pressure values. The operation is stable and reliable. It is widely used in petroleum, chemical, power station, metallurgy and other industrial enterprises and electromechanical equipment.