Pro'sKit MT-3112, Руководство пользователя, Страница: 6 / 32

5
Power off: with the device in the on state, press the button, and keep it pressed,
until the buzzer produces the sound “di”.

Auto Shut-down Function
If no button is pressed, and no signal is input, the device will turn off automatically
within five minutes.

Backlight Function
Press the button to turn on the backlight; press the button again to turn off the
backlight.

Illumination Function
Press the button to turn on the illumination lamp; press the button again to
turn off the illumination lamp.

Data Hold Function
Press the button to enable the data hold function, with the symbol “H” shown
on the display; press the button again to disable the function.

AC/DC Voltage/ Resistance Measurement/ Connectivity
1
）
Press the power button to turn on the device;
2
）
Insert the red pen into the V jack, and the black pen into the COM jack;
3
）
Connect the pens in parallel to the circuit, power source or resistance to be
measured. The device detects AC voltage, DC voltage or resistance automatically;
4
）
When the resistance is measured, if the resistance is smaller than about 50
Ω
, the
built-in buzzer will make a sound;
5
）
The measuring results are read from the display. When the DC voltage is measured,
the display will also show the voltage polarity of the test point of the red pen;
6
）
When the AC voltage is measured, the frequency will also be shown on the auxiliary
display;
7
）
At the end of measurement, press the power button to turn off the device.
Note:
The device
’
s automatic detection order:
AC voltage DC voltage AC current Resistance and connectivity
Warning: To avoid such possible safety accidents as electric shock or bodily injury,
please strictly observe the safety work guidelines.