Rion VM-83, Instruction Manual, Page: 13 / 106

3
Controls and Features
Front panel
LEVEL RANGE keys
Serve for switching the level range up ( ) or down ( ).
Display backlight key (LIGHT key)
Serves for turning the display backlight on and off.
When the unit is operating on batteries, the display automatically turns
itself off after 60 seconds. When the batteries are run down, the display
will be darker.
Calibration key (CAL key)
This key turns the calibration signal supplied at the AC and DC outputs on
and off. The signal is used to perform calibration of external equipment.
Accelerometer sensitivity key (PICKUP SENS key)
Serves for setting the accelerometer sensitivity. When the accelerometer
sensitivity setting mode is on, the indicator above the key lights.