The reason why the multimeter may not be able to measure the capacitance value is because
1, The multimeter and capacitor have no capacity
Firstly, we need to check if the multimeter is faulty. What about it? The method for troubleshooting a multimeter is to use a multimeter to measure resistance. If there is a standard resistance measurement, the resistance range of the multimeter may be calibrated. If you have a response and the value is normal when Wang Yongmeter measures resistance, then we can determine that the multimeter is not damaged.
A capacitor has no capacity, which cannot be observed by the naked eye. If there is no response when using a multimeter, we need to replace it with a new capacitor and measure it with a multimeter. If the capacitor has a response, we can determine that the previous capacitor did not respond due to a lack of capacity.
2, Not selecting the appropriate gear properly
Measuring capacitance can be done in either resistance or capacitance mode, using either a pointer multimeter or a digital multimeter. If using a pointer multimeter, it is important to choose a good time. If the capacitance is large, we should try to choose a low resistance mode so that we can observe the return to normal more clearly. If the capacitance is large and a large mode is chosen, the fluctuation is relatively small, and sometimes we cannot detect it with our naked eyes.
If we choose a digital multimeter, we must also first find the gear and observe the changes in the values. Generally, there will be fluctuations when the capacitor discharges, and then returning to the forest is only a discharge process, indicating that the capacitor is good.
3, Directly select the universal meter for measuring capacitance value
With the above experience, we can directly purchase a multimeter that can measure capacitance values. Set the multimeter to the capacitance mode, with the red probe on one pin and the black probe on the other pin. Generally, a multimeter only has one capacitance mode. Connect it directly for measurement. If the capacitance is good, the capacitance value can be displayed directly on the screen, and the measured value will have a 5% error of the calibration value.
