Chapter 5 Trigger RIGOL
MSO4000/DS4000 User’s Guide 5-5
Trigger Level/Threshold Level
The adjustment of the trigger level/threshold level is related to the trigger source
type.
When the trigger source is any of CH1 to CH4, turn TRIGGER
LEVEL to
adjust the trigger level.
During the adjustment, a trigger level line (orange dotted line) and a trigger
label (
) are displayed on the screen; they move up and down with the
variation of the trigger level. At the same time, the trigger level information (as
shown in the figure below) pops up at the lower-left side of the screen in
real-time. The trigger level line and trigger level information at the lower-left
side of the screen disappears about 2 s later after you stop modifying the trigger
level. The current trigger level is displayed at the upper-right side of the screen.
Note: For runt trigger and slope trigger, you need to set the trigger level upper
limit and trigger level lower limit. You can turn TRIGGER
LEVEL to adjust
the value of the specified trigger level. The difference between the current
upper limit and lower limit of the trigger level is displayed at the upper-right side
of the screen. Two trigger level labels (
and ) are displayed at the right of
the screen.
When the trigger source is EXT or EXT/5, turn TRIGGER
LEVEL to adjust
the trigger level.
During the adjustment, the trigger level information pops up at the lower-left
side of the screen in real-time and disappears about 2 s later after you stop
modifying the trigger level. The current trigger level is displayed at the
upper-right side of the screen.
When the trigger source is AC line, there is no trigger level.
When the trigger source is any of D0 to D15, turn TRIGGER
LEVEL to
adjust the threshold level. The current threshold level is displayed at the
upper-right side of the screen.
In addition, you can also set the threshold level of the digital channel in the
threshold setting submenu. For the setting method, refer to “To Adjust the
Threshold Level”.
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