How to check the multimeter capacitor

In this article I will discuss how to check the serviceability of the capacitor with a multimeter. So, let's get started.

Determine the polar or non-polar capacitor

There are two types of capacitors: polar and non-polar. For polar capacitors are mainly electrolytic and they have a plus and minus.

These capacitors are extremely sensitive to polarity. If you do it the wrong way around and soldered an element contrary, when first switched capacitor simply fails. And if you have installed a modern condenser with so-called notches,

it just bulges and revealed to these incisions, which is precisely intended to prevent explosion. If it has been soldered to the old Soviet electrolytic capacitor, then there is a risk of explosion. So be careful and always pay attention to the polarity of the product.

By the way, it is easy to identify. Polar capacitors minus leg stands black bird or light stripe, e.g., as in:

Why am I telling you all? In addition, when checking that we too critical or non-polarity of the polarity of the capacitor.

Thus, the polarity of the clear, let us now look at how to check capacitor. We remember the main feature of the capacitors. It is concluded that it passes a constant current in only the first few seconds of time (until the capacitor is charged) and scored once its capacity capacitor, a current stops flowing.

Important. To test multimeter suitable capacitors between 0.25 uF.

Getting to the verification of the polar capacitor

So today we will check the condenser:

Take multimeter expose a dial on the device or the resistance measurement. Since in this mode, the measuring device outputs a constant voltage, the leaning probes and strictly the polarity (black test lead to negative and red to positive), we will charge our test capacitor.

Initially, therefore, the instrument will be the minimum value that will grow as the capacitor charging, and eventually on the device turns to "1". This means that reach the limit of measurement on your DMM.

Important. After checking the capacitor needed to defuse, to do this, take a piece of conductive wire and do the following:

If leaning probes to the capacitor you have found on the display zeros and should squeak, then the condenser was a short circuit and it is broken. If, however, immediately saw the "1", it means that inside the condenser open.

This product is deemed defective, and therefore it should be thrown out.

Check the non-polar capacitor

In this embodiment, inspection is extremely simple. Expose on the multimeter resistance measurement Meg and leans against the test leads to the capacitor, the polarity does not matter. And if the display you will see the resistance of at least two mega, this capacitor is unusable, it should also be thrown out.

If your device is present in the next slot,

Then check capacitors easier at times, you simply insert the ends into the connector and see the capacitance of the capacitor.

conclusion

That's all I wanted to tell you on the audit of the capacitor with a multimeter. If the article was interesting and useful to you, you will appreciate her finger up. Thank you for your attention!