Simply put, the pressure switch is actually a pressure control device to control the pressure of the equipment. Whenever the measured pressure of pipeline or other equipment reaches a certain set value, the mechanical or electronic pressure switch will send out a control signal. The pressure switch should be wired before use. How to wire the pressure switch?
1. Take a wire with a plug, insert the plug into the socket A, and connect the wire to the 1 and 3 terminals of the pressure switch. The lead wires of terminals 2 and 4 are connected to socket B, and the power plug of the pump is inserted into socket B. ..
2. Disconnect the power cord of the pump. One end near the pump power plug is connected to the 1 and 3 terminals of the pressure switch, and then connected to the other end of the pump power cord from the 2 and 4 terminals.
Second, the pressure switch debugging and installation method
The invention relates to a detection method of a pressure switch, which is used for detecting whether the stability and the set value of the pressure switch are within the specification range. The detection method of the pressure switch comprises the following steps:
First, a standard pressure generator and a pressure sensor are provided so that the standard pressure generator is connected to the pressure switch and the pressure sensor, then a detection device is provided, and data including a set point pressure value and an operating condition of the pressure switch are established, then the detection device, the pressure switch and the pressure sensor are electrically connected, and then the standard pressure generator applies pressure to the pressure sensor and the pressure switch. Record the set pressure value and reset pressure value of the pressure switch, calculate the error value between the set pressure value, reset pressure value and set pressure value, and judge whether the stability and set value of the pressure switch are within the specification range according to the error value.