Digital multimeters are relatively simple measuring instruments. In this article, the author will teach you how to use the digital multimeter correctly. Starting from the measurement methods of digital multimeters such as voltage, resistance, current, diodes, triodes, and MOS field effect tubes, you can better grasp the multimeter measurement methods.
Before use, you should read the relevant instruction manual carefully and be familiar with the functions of the power switch, range switch, jack, and special jack.
(1) Put the ON/OFF switch in the ON position, check the 9V battery, if the battery voltage is insufficient, it will be displayed on the display, then the battery needs to be replaced. If the display does not show, follow the steps below.
(2) The symbol next to the test pen jack indicates that the input voltage or current should not exceed the indicated value, which is to protect the internal circuit from damage.
⑶ Before the test. The function switch should be set to the range you need.
