QYD series differential pressure switch is designed to prove flow through pumps. It can be used in fluorinated refrigerant, also in air and liquid (-20 to 120°C), renovated SPDT micro-switch ensure the reliable switch function and flexible mounting bracket suits various kinds of application. Ambient working temp: -20℃~70℃
Installations (Electrical Wiring, Connections)
1.The new outer cover, two fingers pinch both sides of the plastic lid, open the outer cover can be pumped out;
2.To be installed in the pipe, must use two wrenches and twist tight;
3.Do not install the controller over electric rating of the device.