Water flow switch SCRXQ-W4-SW, flow sensing switch, wet mill accessories, water flow control switch is a magnetic induction switch: When there is no water pipe, it is naturally disconnected: its two lines are not through; Only when it is connected to the water pipe, when the water pipe passes through, the water shocks the electronic components inside to close, and the two wires are through.
It can pass the voltage is 3--350V (AC/DC), so the voltage of 220V is OK! But its power is very small: (the conventional rated current is 0.5A), so it can not be directly connected with power consumption components than its power! If the power is high, like the motor/motor... Such as high-power power consumption components, it is necessary to pass the relay/AC contactor: 0.5A water flow switch, you can use a relay within 10A.
Flow switch is used for wet mill, humidifier, electric water heater, solar water heater, air conditioner and other water systems of water circulation control, in and out of water control, water heating control, pump switch control, solenoid valve on and off control or outlet power off, outlet power control and other processes, when a certain flow rate will be converted into a switching electrical signal sensor. Suitable thread can be selected for the inlet end and outlet end interface.
Working principle: When the water flow in the pipeline is greater than the rated flow, the magnetic core generates displacement under the action of water flow and drives the magnetic source to produce magnetic control effect, so that the sensor output "1" switch signal, which is input to the equipment control system, and realizes the purpose of water flow control after power expansion and amplification. When the water flow in the pipeline is less than the rated flow, the magnetic core drives the magnetic source to return under the action of the reset spring, so that the sensor outputs the "0" switch signal and stops the work of the system. The flow switch has the advantages of high sensitivity and strong durability.