4 Triggering
128 InfiniiVision 7000B Series Oscilloscopes User’s Guide
Pulse Width Trigger
Pulse Width (glitch) triggering sets the oscilloscope to trigger on a positive
or negative pulse of a specified width. If you want to trigger on a specific
timeout value, use Duration trigger in the Trigger Menu (see “Duration
Trigger” on page 114).
1 Press the [Pulse Width] key in the Trigger section of the front panel to
display the Pulse Width Trigger Menu.
2 Press the Source softkey (or rotate the Entry knob) to select a channel
source for the trigger.
The channel you select is shown in the upper- right corner of the
display next to the polarity symbol.
The source can be any analog or digital channel available on your
oscilloscope. External trigger may also be specified as a source when
using a 2- channel oscilloscope.
Adjust the trigger level for the selected analog channel by turning the
Trigger Level knob. Press the [Digital] key and select Thresholds to set
the threshold level for digital channels. The value of the trigger level or
digital threshold is displayed in the upper- right corner of the display.
3 Press the pulse polarity softkey to select positive ( )or negative ( )
polarity for the pulse width you want to capture.
Source
Pulse
polarity
Qualifier Qualifier time set
Trigger level
or threshold
Trigger
source
Polarity
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