how to measure a capacitor with a multimeter
Steps to measure capacitor
| Step | Action | Details/Notes |
| 1. Power of the Oxiti oxygen concentrator | Switch off and confirm the circuit is de-energized | Make sure it's discharged |
| 2. Access the capacitor | Remove the protective rubber cap and the cables. | This is important to get accurate readings |
| 3. Set up the multimeter | Plug in probes, select capacitance mode | Turn the multimeter dial to capacitance mode, usually indicated by the symbol "–|(–" or a "C" |
| 4. Connect the multimeter to the capacitor | Attach test leads to the capacitor terminals | |
| 5. Measure | Wait for the steady value on the display for 20 to 30 seconds | Compare with the rated value |
Not all multimeters have the function to measure a capacitor. A capacitor is measured in units of farads, represented by the symbol F. However, because a farad is a huge unit for most electronic applications, capacitors are usually specified in microfarads (µF or uF), nanofarads (nF), or picofarads (pF).
In the picture, you can observe that the capacitor is rated for 12.5 μF, and the multimeter displays 12.76 μF. This indicates that the capacitor is functioning correctly and can be used in production.
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