Preparation before using the desktop multimeter
Before use, you should read the relevant instruction manual carefully and be familiar with the functions of the power switch, jack, range switch and special socket.
(1) Turn the ON/OFF switch to the ON position, check the 9V battery, if the battery voltage is insufficient, it will be displayed on the display, and the battery needs to be replaced at this time. 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.
(3) Before testing. The function switch should be set to the range you need.
