Usage: 1 Play the three-core plug into the rear three holes of the demagnetizer, insert the external wire into the AC220V power socket, press the top button of the demagnetizer, start the demagnetizer, move the magnetic device on the workpiece at a slow and continuous speed, and finally push out the surface of the workpiece. 2 After demagnetizing is completed, the workpiece is far away from the demagnetizer, and the power supply of the demagnetizer is turned off. 3. After use, unplug in time, cut off the power supply, time power, long too high, burn the demagnetizer coil.