How much do you know about soldering iron resistance testing
Soldering iron is a necessary tool for electronic production and electrical maintenance, the main purpose is to weld components and wires, according to the mechanical structure can be divided into internal and external hot soldering iron, according to the function can be divided into no tin soldering iron and tin-absorbing 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.
