how to use a multimeter to detect the quality of resistance?

Sep 11, 2023

There are many ways to determine the good and bad resistance, the most simple and easy to use method is to use a multimeter resistance file detection, the next power adapter manufacturers to tell you how to proceed

1. First select the measurement gear and range

Turn the multimeter function knob to gear, any range. Normally, choose R x 1 range for resistors below 100, R x 10 or R x 100 range for resistors 1K~10K, R x 1K or R x 10K range for resistors 10K~100K, and x10K range for resistors above 100K.

2. Zeroing

With one hand will be two pens metal bar short, the other hand adjust the "zero knob" using the multimeter pointer on the right end of the dial 0 position.
3.Measurement

The multimeter two pens were stable contact resistor two electrodes, and from the ohm dial to read the data indicated by the pointer, the data will be multiplied by the range value of the result is the resistance value of the resistor.

4. How to judge the good and bad

The measured results will be compared with the marked value of the resistor, the measured results and the marked value is about equal, indicating that the resistor is normal, is good, if the difference is too large, far more than the accuracy of the allowable rice fee, indicating that the resistor has been bad, if the measurement in the ranges, the pointer does not deflect, indicating that the resistor has been open-circuit damage.

Power adapter manufacturer's sharing ends here today, want to know more about power supply information, welcome to pay attention to Eahunt.

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