3-14
Triggering the Oscilloscope
To use Pulse Width triggering
To use Pulse Width triggering
Pulse Width (glitch) triggering sets the oscilloscope to trigger on a positive pulse
or a negative pulse of a specified width. If you want to trigger on a specific
timeout value, use Duration trigger in the trigger More menu.
1Press the Pulse Width key in the Trigger section of the front panel to
display the Pulse Width trigger menu.
2Press the
Source softkey (or rotate the Entry knob on mixed-signal
oscilloscopes) 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 the 2-channel and
4-channel oscilloscopes.
Adjust the trigger level for the selected analog channel source by turning the
Trigger Level knob. The position of the trigger level for the analog channel is
indicated by the trigger level icon (if the analog channel is on) at the far left
side of the display when DC coupling is selected. Set the threshold for the
selected digital channel group by pressing the D7 Thru D0 or D15 Thru D8 key
then press the Threshold softkey. The value of the trigger level or digital
threshold is displayed in the upper-right corner of the display.
Source
Pulse
polarity
Qualifier Qualifier time set
Trigger level
or threshold
Trigger
source
Polarity
T
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