Chapter 5 Trigger RIGOL
MSO4000/DS4000 User’s Guide 5-11
Edge Trigger
In edge trigger, the oscilloscope triggers on the trigger level/threshold level of the
specified edge of the input signal.
Press MENU (in the trigger control area (TRIGGER) at the front panel) Type, turn
the multi-function knob to select “Edge” and press the knob. You can also press
Type continuously to switch to “Edge” trigger.
At this point, the trigger setting information (include the trigger type, trigger source
and trigger level/threshold level, as shown in the figure below) is displayed at the
upper-right side of the screen and changes with the trigger setting.
Set the edge trigger:
1. Specify the trigger source and adjust the trigger level/threshold level
1) Press Source to select CH1 to CH4, EXT, EXT/5, AC Line or D0 to D15
(please refer to “
Trigger Source”).
The trigger source currently selected is displayed at the upper-right side of
the screen.
1 to 4: analog channel (CH1 to CH4);
E: external trigger channel (EXT, EXT/5);
AC: AC line;
D0 to D15: digital channel (D0 to D15).
Note: Channels that are turned off can also be selected as the trigger
source.
2) Turn TRIGGER
LEVEL to adjust the trigger level (when the trigger
source is CH1 to CH4, EXT or EXT/5) or threshold level (when the trigger
source is D0 to D15) (please refer to “
Trigger Level/Threshold Level”).
The current trigger level/threshold level is displayed at the upper-right side
of the screen.
When the trigger source is AC line, there is no trigger level.
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