RIGOL DS1000B - Manual (Page 120)

RIGOL
User’s Guide for DS1000B series 2-90
Preference
Press Utility→Preference to go to the following menu
Figure 2-123 Table 2-73 The Preference menu
Menu Display Comments
Screen saver
1 min
…
5 hour
OFF
Set up screen saver timer.
Expand
Ground
Center Set up waveform vertical expand
reference.
Stickykey
Turn the sticky status of CH1, CH2,
CH3, CH4, MATH, REF, Trig.Lev. and
Trig.Pos. on or off.
Default Load
Last set
Default
Use the last setup in the next power
on.
Use the default setup of the system
in the next power on.
Key Points
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,
CH2, CH3, CH4, MATH, REF, Trig.Lev. and Trig.Pos.), the waveform will stop at
zero position until next adjustment, for the ease of getting back to initial
positions.