RIGOL MSO/DS2000A Series - Manual (Page 100)

RIGOL Chapter 5 To Trigger the Oscilloscope
5-14 MSO2000A/DS2000A User’s Guide
width. Press Lower Limit to set the minimum pulse width of runt trigger. The
range available is from 2 ns to 4 s.
 <: trigger when the runt pulse width is lower than the upper limit of pulse width.
Press Upper Limit to set the maximum pulse width of runt trigger. The range
available is from 2 ns to 4 s.
 <>: trigger when the runt pulse width is greater than the lower limit and lower
than the upper limit of pulse width. Press Upper Limit to set the maximum
pulse width of runt trigger and the range is from 10 ns to 4 s; press Lower
Limit to set the minimum pulse width of runt trigger and the range is from 2 ns
to 3.99 s.
Note: The lower limit of the pulse width must be lower than the upper limit.
Vertical Window and Trigger Level:
After the trigger condition setting is completed, you need to adjust the trigger level
to correctly trigger the signal and obtain stable waveform. The adjustment mode of
the trigger level is different when different vertical window is selected in the runt
trigger. Press Vertical and use
to select the desired vertical window or press
down Window continuously to switch the vertical window. You can choose to only
adjust the upper limit, the lower limit or both of them.
Note: Under the “Runt trigger” menu, you can press TRIGGER LEVEL
continuously to switch among different vertical window.
After the vertical window type is selected, you can rotate TRIGGER LEVEL to
adjust the trigger level. During the adjustment, two orange trigger level lines and
trigger marks ( and
) appear on the screen and move up or down with the
rotation of the knob. At the same time, the current trigger level values are displayed
at the lower left corner of the screen. The trigger level lines and trigger marks
disappear after you stop rotating the knob for about 2 s.
The adjustment mode of the trigger level differs when different vertical window is
selected.

: only adjust the upper limit of the trigger level. During the adjustment,
the “Up Level” changes accordingly and “Low Level” remains unchanged.
 : only adjust the lower limit of the trigger level. During the adjustment,