Digital multimeters generally have capacitance ranges for measuring capacitors. Select the range according to the capacitance of the measured capacitance. Then, first discharge the measured capacitance, and connect the red and black test leads to the two ends of the measured capacitance. The displayed value is the measured capacitance.
If you want to use an electric block or a diode block to judge whether the quality is good or bad, it is mainly by measuring the resistance value of the positive and negative electrodes of the capacitor whether the final measurement result is 1, then it is good.
