Chapter 5 Trigger RIGOL
MSO4000/DS4000 User’s Guide 5-19
adjust the maximum runt pulse width within a relatively larger range, this
function can help you quickly finish the setting.
<>: the oscilloscope triggers when the width of the runt pulse is lower than
the specified maximum runt pulse width (Upper Limit) and greater than
the specified minimum runt pulse width (Lower Limit).
When this qualifier is selected, press Upper Limit and Lower Limit
respectively; turn the multi-function knob
or the inner knob of the
navigation knob to adjust the maximum runt pulse width and minimum runt
pulse width at a relatively smaller step or turn the outer knob of the
navigation knob to adjust the maximum runt pulse width and minimum runt
pulse width at a relatively larger step. The range of the maximum runt pulse
width is from 12 ns to 4 s and the range of the minimum runt pulse width is
from 4 ns to 3.99 s.
Note:
― The minimum runt pulse width should be lower than the maximum runt
pulse width.
― The larger the rotation amplitude of the outer knob of the navigation
knob is, the faster the variation of the value will be. When you need to
adjust the maximum runt pulse width/minimum runt pulse width within
a relatively larger range, this function can help you quickly finish the
setting.
5. Specify the trigger mode
Press Sweep to select “Auto”, “Normal” or “Single” (please refer to “Trigger
Mode”). The corresponding status light of the current trigger mode in the
trigger control area (TRIGGER) at the front panel turns on.
6. Set the trigger holdoff and noise rejection
Press Setting to enter the trigger setting submenu. In this submenu:
1) Press Holdoff to adjust the holdoff time (please refer to “Trigger
Holdoff”). The range is from 100 ns to 10 s.
2) Press Noise Reject to turn the noise rejection on or off (please refer to
“
Noise Rejection”).
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