The amperage is the current drawn by an electronic device. It is a bit more complex to measure the amperage. I measured here 12.15V for my power supply, which roughly corresponds to the datasheet.Ĭheck this Digital Multimeter DT830B on AliExpressĪmperage measurement using a DT830B multimeter You can measure directly the voltage using the digital multimeter since you don’t have to disconnect the fan while you do the readings. Put the black probe of the multimeter on the negative end (-) of the connector and the red probe to the positive side (+). You can now read the voltage of this power supply. In my example, I’m using a 12V DC power supply so I should select the DCV20 reading mode on the multimeter. On the other hand, for a 12V battery, you should select 20V. For example, if you want to test the voltage in a circuit powered by a 1.5V battery you can select the 2000m reading mode on the multimeter. The value selected should be higher than the value expected. To read the voltage of the DC power supply, you can turn on the digital multimeter and select the appropriate reading mode. Check this DT830B Digital Multimeter on Amazon
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