Use a multimeter to measure the leakage voltage of the machine:
1. First, move the multimeter to the 250V AC voltage range. First, insert the two test leads into the powered jack to check whether the multimeter indicates normal.
2. Then, touch the surface that one test lead has touched, and the other test lead to contact the ground or zero line, and the indication on the voltmeter is its leakage voltage. Note: When measuring, do not touch the bare metal parts of the test leads with both hands to prevent electric shock.
Multimeters, also known as multiplex meters, multimeters, triple meters, multimeters, etc., are indispensable measuring instruments in power electronics and other departments. Generally, the main purpose is to measure voltage, current and resistance. Multimeters are divided into pointer multimeters and digital multimeters according to the display mode. It is a multi-functional and multi-range measuring instrument. Generally, the multimeter can measure DC current, DC voltage, AC current, AC voltage, resistance and audio level, etc., and some can also measure AC current, capacitance, inductance and semiconductor. Some parameters (such as β), etc.
Adjust the multimeter to the AC voltage range, connect one test lead to the machine shell, and the other test lead to the ground wire (if the machine does not have a static ground wire, connect it to the ground of the three-hole socket, left zero and right fire) Read out The AC voltage is the leakage voltage. How to check whether the electrical appliance is leaking with a multimeter
