RIGOL 
© 2008 RIGOL Technologies, Inc. 
  User’s Guide for DS1000B series 
 
 
Screen saver: This function extends the life of LCD backlighting system. 
Expand reference: When changing the volts/div. for channels, the signal expands 
or compresses around the signal ground level, or the center of the screen. When 
Center is selected, the waveform will expand or compress around the center of the 
display. When Ground is selected, the channel ground level will remain the same 
position on the display and waveform will zoom about the ground level. 
Sticky key: If sticky feature is turned ON, when adjusting positions (CH1, CH2ˈ
CH3ˈCH4, Math, Ref, Trigger level and Trigger offset), the waveform will stop at zero 
position until next adjustment, for the ease of getting back to initial positions.