How to measure leakage with a multimeter
The method of measuring the short circuit, open circuit and leakage of the line with a multimeter
If there is leakage in the line, it is generally not recommended to use a multimeter to test. When there is no other measurement tool, it is also possible to use a multimeter.
Operation method:
Rotate the multimeter to the AC voltage range, and measure with electricity, and measure the metal casing of the equipment suspected of leakage.
When measuring, one test lead is connected to the shell, and the other is grounded. If the displayed voltage is higher than 30V, test again. If the power supply is confirmed to be higher than 30V, it means that there is leakage, and it is normal if it is lower than 30V. , After the pens of the FireWire meter are swapped, measure it once to confirm.
Summarize
Use a multimeter to test short circuits, open circuits, AC voltage, DC voltage, resistance, current, etc.
Note: The red pen is positive and the black pen is negative. When measuring, you must first check the measurement type and range. When the range cannot be estimated, first select a larger range, and then gradually change to a smaller range according to the value.
