Checking the various types of capacitors for operation

How to check the ceramic capacitor?

Condensers are polar( electrolytic) and non-polar, for example, ceramic. In this type of device, various materials, such as glass, air, paper, can be used as a dielectric. The process of measuring the capacitance of a device with a ceramic dielectric is as follows:

1. It is necessary to switch the multimeter to the resistance measurement mode.
2. The maximum measuring limit must be set on the digital multimeter.
3. After adjusting the instrument, the probes are attached to the legs of the condenser.

If the part is working, then the device will display a value that exceeds 2 megaohms. If the received resistance does not exceed 2 megohms, it is inefficient.

It is important to note that during the measurements you do not need to touch the probes with your hands, as this can significantly affect the quality of the measurements. This will happen for the reason that the resistance of the human body is very small, and the leakage resistance significantly exceeds it. Consequently, the current passes through the body, that is, by a smaller resistance, and not through the capacitor. The resistance of a person will be shown on a multimeter, which does not apply to our problem.

How to check the electrolytic capacitor?

You can also measure the capacitor using an ohmmeter that is part of a multimeter. Video checks in this case will be slightly different from the video in which the operability of the ceramic capacitor is checked. The leakage resistance of high-quality polar capacitors will exceed 100MΩ.Step-by-step instruction:

1. It is important to first unload it before starting the test. Discharge can be accomplished by shortening the legs of the device.
2. It is necessary to set the measurement mode on the device, which corresponds to a resistance value of 100 kΩ.
3. The two terminals of the multimeter must be touched to the legs of the capacitor. It is important that the red lead touches the positive contact, and the left one - to the negative one.
4. If the resistance value exceeds 100 kOhm for the first test on the screen, the part works well.

How do I check the capacity?

A multimeter with capacitance measurement is necessary to determine faults such as loss of capacitance or breakage. If there is a breakage, the capacitor completely loses its capacitance. With the capacitance measurement mode, you can also check the starting capacitor. You can measure the capacitance of the capacitor as follows:

1. Set the multimeter to the capacitance measurement mode.
2. Connect the capacitor leads to the terminals of the multimeter twice( during the second connection, the pins have to be swapped).
3. We wait for the result of the measurements and compare them.
4. If the first measurement on the screen is zero, and the second is a line, this means that the part is working. If the measurement results do not differ, it is faulty.

The above instructions solve the problem, which is how to ring the capacitor. The call will help to determine the loss of the operability of the part and replace it.