How to test the resistance of soldering iron
Soldering iron is electronic production and electrical maintenance of the necessary tools, the main purpose is to weld components and wires, according to the mechanical structure can be divided into endothermic soldering iron and external hot soldering iron, according to the function can be divided into no suction tin soldering iron and suction tin soldering iron, according to the use of different types of soldering irons are divided into high-power soldering irons and low-power soldering irons.
Soldering iron test includes three parts: ground resistance test (cold/hot state), leakage voltage test and leakage current test.
1, the cooling state of the soldering iron grounding resistance test:
In the case of no power, one end of the multimeter pen will be in contact with the grounding end of the power plug, and the other end will be in contact with the tip of the soldering iron to test the data;
2, heating state of the soldering iron grounding resistance test:
Plug in the power supply, open the soldering iron, one end of the multimeter pen with the grounding end of the row of plugs, the other end of the soldering iron contact with the contact of the test board, measurement results;
3, the soldering iron leakage voltage test and leakage current test with resistance test method is similar, need to pay attention to is the multimeter need to switch gear or measure the current when the multimeter pen line position needs to be adjusted.
