Rion VM-55, Instruction Manual, Page: 73 / 204

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Reading the Display
Stop (Timer Auto mode)
Displays the screen to set the measurement stop time in the Timer Auto
mode.
Select [Stop] and press the MENU/ENTER key. The stop time setting
screen appears.
Timer Auto Interval (Timer Auto mode)
Displays the screen to select the timer auto interval in the Timer Auto mode.
Select [Timer Auto Interval] and press the MENU/ENTER key. The timer
auto interval screen appears.
Sleep Mode (Timer Auto mode)
Displays the screen to select whether to set the sleep mode.
Select [Sleep Mode] and press the MENU/ENTER key. The ON/OFF
setting screen appears.
When sleep mode is enabled, the unit will enter a power-saving standby
condition at 60 seconds after pressing the START/STOP key and during
intervals between measurements. In this mode, power consumption is
reduced to about 1/10. The LCD panel is off, and the indicator LED fl ashes
in blue once every 5 seconds. 90 seconds before the start of measurement,
the unit will wake up and go into standby until measurement begins.
To check the measurement settings in standby condition, press the LIGHT
key. The display will come on temporarily and will turn itself off again if
no further operation steps are taken. During sleep mode, the LCD panel
is off, and the AC and DC outputs, USB connector, RS-232C, comparator
functions etc. are also disabled. If one of these functions is required, set
the sleep mode to OFF.