Service and Maintenance 
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qSCALE i2 Cranes (Tool Version 3.0.34) Operators Manual / Issue B / 11-2017 / ac. 
4.2.1  Brightness & Volume 
In this menu settings can be made to the buzzer volume and brightness of display and illumination. 
 
     
All three settings can be set by the following instructions: 
  Turn the rotary encoder to clockwise to increase value 
  Turn the rotary encoder counter clockwise to decrease value 
  Once the desired brightness is selected, press the SET    function key to set. 
  To abort, press the ESCAPE    function key