How to use the electronic display pen
1. Immediate measurement method
The immediate measurement method refers to the method of directly touching the camera of the test pen to the measured object to determine whether it is charged or not.
When using the direct measurement method, touch the metal camera of the test pen to the measured object, and hold down the direct measurement function key (DIRECT) with the other hand;
If the object under test is charged, the indicator light on the test pen will be brightened and the display will display the value of the measured voltage.
The general test pen can display 12v, 36v, 55v, 110v and 220v. Under normal circumstances, the final display value of the monitor is the measured voltage value.
Immediate measurement method (220v voltage)
2. Magnetic induction measurement method
The magnetic induction measurement method refers to the measurement method in which the camera of the test pen is brought close to but not touching the measured object, and the voltage magnetic induction is used to distinguish whether the measured object is charged or not.
If the power line is charged, the display of the test pen will display the symbol of the voltage;
If the power line is disconnected in the middle, the indicator light goes out and the voltage indicator disappears, indicating that there is a disconnection at the location.
The magnetic induction measurement method can find the disconnection position of the insulated wire, and can also distinguish the live wire and the neutral wire of the insulated wire.
Electricity provides convenience to our lives, but it is also risky, so it is recommended to hand over problems related to electricity to professionals, and don't try your best.
