Chapter 5 Trigger RIGOL
DS4000E User’s Guide 5-15
None: do not set the pulse width qualifier.
>: the oscilloscope triggers when the width of the runt pulse is greater than
the specified minimum runt pulse width (Lower Limit).
When this qualifier is selected, press Lower Limit and turn the
multi-function knob
or the inner knob of the navigation knob to adjust
the minimum runt pulse width at a relatively smaller step or turn the outer
knob of the navigation knob to adjust the minimum runt pulse width at a
relatively larger step. The range of the minimum runt pulse width is from
4 ns to 4 s.
Note: 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 minimum 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).
When this qualifier is selected, press Upper Limit and turn the
multi-function knob
or the inner knob of the navigation knob to adjust
the maximum runt pulse width at a relatively smaller step or turn the outer
knob of the navigation knob to adjust the maximum runt pulse width at a
relatively larger step. The range of the maximum runt pulse width is from 4
ns to 4 s.
Note: 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 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.