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Triggering the Oscilloscope
To use Duration triggering
To use Duration triggering
Duration trigger lets you define a pattern, then trigger on a specified time
duration of this logical AND combination of the channels.
1Press the More key in the Trigger section of the front panel, rotate the
Entry knob until
Duration is displayed in the Trigger softkey, then press
the
Settings softkey to display the Duration trigger menu.
2 For each analog or digital channel you want to include in the desired
pattern, press the
Channel softkey to select the channel.
This is the channel source for the H, L, or X condition. As you press the Channel
softkey (or rotate the Entry knob on mixed-signal oscilloscopes), the channel
you select is highlighted in the Pattern = line directly above the softkeys and
in the upper-right corner of the display next to "Dur". External trigger may also
be specified as a channel in the pattern when using the 2-channel and 4-channel
oscilloscopes.
Adjust the trigger level for the selected analog channel by turning the Trigger
Level knob. The position of the trigger level for the analog channel is indicated
by the trigger level icon 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.
Trigger level
or threshold
Selected
channel
Duration
trigger
Channel
select
Logic level
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Qualifier
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