Major tech MT790, Instruction Manual

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9
1. Turn the rotary switch dial to a position away from the OFF position.
Hearing a beep sound indicates the meter is turned on. The LCD
displays all symbols firstly and then return to the normal mode. If the
symbol is displayed, please changed the battery.
2. After auto-shut-off, there are some parts of the circuit of the meter
which still work. If no measurement is needed in a longer time, you'd
better turn the rotary switch back to the OFF position.
3. Press the backlight button when needed. Auto shut-down backlight
after 20 secs. Press the button again, turn the backlight off manually
7. DISPLAY SYMBOLS (See figure 3)
Figure 3