Sleep Mode; Rs232 Button - UNI-T UT803 Operating Manual

Sleep Mode

When the Meter display
turns off if you do not turn the rotary switch or press
any button for around 10 minutes to preserve battery.
The last measurement value will be kept.
The Meter can be activated by pressing the POWER
button off and then on or pressing the HOLD button, it
will display the last measurement value before it entered
sleep mode and under the HOLD mode.
Turning the rotary switch can also activate the Meter.
However, it will start from the switch selected function
and it will not display the last measurement value before
it entered sleep mode.
To disable the Sleep Mode function, press MAX MIN,
RANGE, or RS232 button while turning on the Meter,
the symbol disappears.
36
symbol, it automatically
Model UT803: OPERATING MANUAL

RS232 Button

Press RS232 button to enter or exit data output mode.
In RS232C serial port data output mode, the Hold and
Max Min mode cannot output to the computer, the
computer will only display the present measuring value.
In RS232C serial port data output mode, Sleep Mode
function will be disabled,
hFE and cannot output to the computer.
symbol disappears. +DC,