How to determine an electric soldering iron's resistance
1. Grounding resistance test of electric soldering iron in cooling state:
In the case of no electricity, connect one end of the multimeter pen to the ground end of the power plug, and the other end to the tip of the electric soldering iron to test the data;
2. Grounding resistance test of electric soldering iron under heating state:
Plug in the power supply, turn on the electric soldering iron, touch one end of the multimeter pen to the ground terminal of the power strip, and the other end to the test board in contact with the electric soldering iron, and measure the result;
3. The leakage voltage test and leakage current test of the electric soldering iron are similar to the resistance test method. It should be noted that the position of the multimeter pen line needs to be adjusted when the multimeter needs to switch gears or measure the current.
