FT series dc to ac solar inverter 24v
How to measure the voltage of alternating current with a multimeter?
Digital multimeter to measure AC voltage: connect the black test lead to -or ground (marked in the test lead jack), the red pen to the AC (or add a ~) hole under the letter V; the gear point refers to 750 in the AC~ column (some are 1000) (If it is to measure the mains 220V) range. Then two pens touch the two holes of the power socket respectively, and the reading is the AC voltage value.
The pointer meter measures the AC voltage: the black pen is connected to negative or ground, the red pen is connected to +, the gear is dialed to AC~500V, and the same digital multimeter is inserted into two tests. The number pointed by the pointer should correspond to the maximum range on the right. If it is 500V, then look at the row with the maximum number marked 50 on the right side of the reading plate when reading. If the pointer points to 20, then the reading is 200V.
Digital multimeter to measure DC voltage: same as AC measurement, except that the red pen is connected to the + hole, and the red pen is also connected to the + pole of the power supply. big to small. For example, to measure a AA battery, choose the 2V range. If the polarity is reversed, there will be a negative display before the reading.
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