Rigol 2000 Series User Manual page 71

Chapter 3 To Set the Horizontal System
The Waveform after Enlargement:
The waveform in the lower part of the screen is the horizontally expanded waveform.
Compared to the main time base, the delayed time base has increased the waveform
resolution (as shown in the figure above).
Note:
The delayed time base should be less than or equal to the main time base and
can be modified by rotating HORIZONTAL
Tip
You can also press down HORIZONTAL
to quickly switch to delayed sweep mode.
MSO2000A/DS2000A User Guide
SCALE.
SCALE (delayed sweep shortcut key)
RIGOL
3-3