#shorts #capacitor #multimeter #electronic #electrical #engineering
How to Test a Capacitor With a Multimeter
(Using the capacitance mode on the multimeter)
In this video, we're going to learn how to test a capacitor with a multimeter. This is a very important skill to have if you're working with electronic devices, and it's a great way to troubleshoot problems.
We'll start by explaining how to use the multimeter, and then we'll test the capacitor. This is a simple procedure, and after watching this video, you'll be able to test your own capacitors with ease!
1. Remove the capacitor to be tested from the electric board.
2. Discharge the capacitor completely by connecting it across a resistor, and remove the capacitor thereafter for testing.
3. Connect the capacitor terminals to the leads of the probe (positive terminal of the capacitor to the red probe and the negative terminal of the capacitor to the black probe of the multimeter). In a typical polar capacitor, the longer lead is the positive terminal, and the shorter lead is the negative terminal.
4. Rotate the selection knob of the multimeter and select the capacitance mode.
Note the value on the display panel and compare it with the value given on the capacitor case to check for any faults.
5. Some fluctuation from the actual value is acceptable (typically within a tolerance band of 10-20 %), but if the displayed value is very high or very low compared to the actual value, the capacitor may be faulty and has to be replaced.