Instructions / Assembly

Measurement instructions

Precautions before operation:

1. Turn on the power and check whether the battery is under voltage. If " "

is displayed on the screen, you need to replace the battery before operation. If not,

please follow the steps below.

2. The " " warning symbol next to the jack of the measurement probe

indicates that the input voltage or current should not exceed the indicated value,

which is to protect the internal circuit of the instrument from damage.

3. The instrument has the function of automatic shutdown, that is, the display

shows " " and it will shut down automatically about 10 minutes after no

operation. Cancel the automatic shutdown function: press and hold the " "

key to start the machine, after hearing the beep sound for about 5 times, release

the key,

and the " " is not displayed on the display screen, which can prevent the

instrument from entering the sleep state during the measurement process.

4. The backlight function turns off automatically after about 15 seconds.

5. The lighting function will turn off automatically about 15 seconds after it is turned

on.

AC voltage measurement

1. Insert the red probe into the " " jack and the black probe into the

jack.

2. Turn the knob switch to the " " position, and connect the probe to the power

supply or load to be measured, and the measured value will be displayed on the

screen.