Precautions for measuring voltage with GVDA multimeter:
1) Before using the multimeter, "mechanical zero adjustment" should be performed first, that is, when there is no electricity to be measured, make the pointer of the multimeter point to the position of zero voltage or zero current.
2) In the process of using the multimeter, do not touch the metal part of the test pen with your hands, so on the one hand, it can ensure the accuracy of the measurement, and on the other hand, it can also ensure personal safety.
3) When measuring a certain amount of electricity, it is not possible to change gears while measuring, especially when measuring high voltage or large current, more attention should be paid. Otherwise, the multimeter will be destroyed. If you need to change gears, you should disconnect the test leads first, and then go to measure after changing gears.
4) When using the multimeter, it must be placed horizontally to avoid errors. At the same time, pay attention to avoid the influence of external magnetic fields on the multimeter.
5) After the multimeter is used, the transfer switch should be set to the maximum block of AC voltage. If it is not used for a long time, the battery inside the multimeter should also be taken out to prevent the battery from corroding other components in the meter.
The multimeter can not only be used to measure the resistance of the object to be measured, but also the AC and DC voltage can also be used to measure the DC voltage.
Even some multimeters can measure the main parameters of transistors and the capacitance of capacitors. From: Home of Electrotechnical Technology
Introduce the multimeter from the basic knowledge of the multimeter and the skills of measuring the voltage of the multimeter, and help you master the basic skills of the multimeter.
