The maintenance of the pen should not be considered such a simple matter. It is not just a matter of connecting the wires to use it normally. This is a wrong viewpoint, and the quality of the pen determines the size of the measurement error. If the pen is only casually connected and repaired, there is no value in repairing it, so pen repair should be highly valued.
Repair steps for the pen:
1: Firstly, determine the length and thickness of the wiring, which is the key point.
Because we all know that the longer the wire, the greater its resistance value, so the current flowing through the wire is smaller. This must be mastered properly, and the length of the probe wire should not be too long, otherwise the resistance value will increase, and it should not be too short.
2: Secondly, it is necessary to ensure that the wires are properly connected during wiring to avoid short circuits.
Because the pen wires are composed of several copper wires, if there is a short circuit between two or three copper wires, the consequences would be unimaginable. Therefore, it is necessary to check the pen wires for short circuits and ensure that the wires are properly connected to avoid short circuits.
Furthermore, it is necessary to check the insulation of the probe.
That is to say, the insulation of the probe should not be easily scraped off: because if the copper wire of the probe leaks out, there will be an electric shock accident. Secondly, if the probe wire is exposed outside (because there is also a certain resistance value in the air), it will increase the resistance value of the probe wire, which will affect measurement error. Therefore, it is necessary to check the insulation of the probe. These are several key parts of repairing a watch pen.
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