User Manual

1 Quick Start RIGOL
DS4000 User’s Guide
1-17
TRIGGER
MODE: press this key to switch the trigger mode to Auto,
Normal or Single and the state backlight of the current
trigger mode would be illuminated.
TRIGGER LEVEL: modify the trigger level. Turn
clockwise to increase the level and turn counterclockwise
to reduce. During the modification, the trigger level line
moves up and down and the value in the trigger
level message box (such as ) at the
lower-left corner of the screen would change accordingly.
Press down the knob to quickly reset the trigger level to
zero point.
MENU: press this key to open the trigger operation menu.
This oscilloscope provides various trigger types.
FORCE: in Normal and Single trigger modes, press this
key to generate a trigger signal forcefully.
50%: press this key to set the trigger level to the vertical
midpoint of the trigger signal amplitude.
CLEAR
Press this key to clear all the waveforms on the screen. If
the oscilloscope is in “RUN” state, waveforms will still be
displayed.