Multimeter leakage measurement of the correct method is as follows:
1, first of all, you need to turn off the home's power supply, if there are some power appliances open, but also to unplug the socket, which will not affect the results of the test.
2, adjust the multimeter gear, to adjust to the resistance gear, and then to adjust it to the correct range, generally adjusted to more than 200 megohms, the first to put the multimeter pens on the wire, the other pens should be touching the ground or direct contact with the wall, but it is best to direct contact with the grounding wire.
3, carefully observe the multimeter display, if the number appears, then it is the insulation resistance of this wire.
4, if the insulation resistance value is 0.4 megohm, it means that this wire is unqualified, because it is poor insulation, there will be leakage problems.
5, if the measured value of 0.6 megohm, it means that this wire is not a problem, the insulation value within the normal range, there is no leakage problem. After that, you can use the same method to measure the other wires, one by one measurement can be.
Multimeter, also known as the multiplex meter, multi-meter, triple meter, traditional meter, etc., is an indispensable measurement instrument in the power electronics and other sectors, generally to measure voltage, current and resistance as the main purpose.
Multimeter is divided into pointer multimeter and digital multimeter according to the display mode. Is a multi-function, multi-range measurement instrument, general multimeter can measure DC current, DC voltage, AC current, AC voltage, resistance and audio level, some can also measure AC current, capacitance, inductance and semiconductor some parameters (such as β) and so on.