How to proofread the multimeter?
The multimeter is the same as other measuring instruments. When it leaves the factory, the manufacturer has adjusted it, so if there is no major obvious problem, please do not adjust it at will. The head of the current multimeter is generally a voltmeter, so when you want to calibrate other gears, you must first adjust the DC voltage gear. This gear is what the industry calls the basic gear. Every gear and every function (except the resistance gear) may be inaccurate. Generally, a multimeter will set one potentiometer (such as DC voltage file) or multiple potentiometers (such as temperature file) for each function, and some have no potentiometer (such as resistance file). It is easy to handle with a potentiometer, input the detection signal, and then directly adjust it; if there is no potentiometer, generally it will not be inaccurate, in case of inaccuracy, it may be caused by damage to the instrument or poor contact of the line.
