How to operate digital display pen
1. Immediate measurement method
The immediate measurement method refers to a measurement method in which the camera of the electric test pen is directly contacted with the object to be measured to determine whether it is charged or not.
When using the direct measurement method, touch the metal camera of the test pen to the object to be measured, and press the direct measurement button (DIRECT) with your hand at the same time;
If the object being measured is charged, the indicator light on the test pen will light up and the display will display the measured voltage value.
Generally, electric test pens 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 a measurement method in which the camera of the electric test pen is brought close to but not touching the object to be measured, and voltage magnetic induction is used to determine whether the object to be measured is charged.
If the power line is live, the voltage indicator will appear on the monitor of the test pen;
If the disconnection indicator light in the middle of the power line goes out and the voltage indicator disappears, it indicates that there is a disconnection at that location.
The magnetic induction measurement method can find the disconnection position of insulated wires, and can also distinguish the live and neutral lines of insulated wires.
Electricity provides convenience to our daily lives, but it is also risky. Therefore, it is recommended that problems related to electricity be left to professional personnel to solve, and do not show off.
