Triggering 4
InfiniiVision Oscilloscopes User’s Guide 103
• X sets the pattern to don't care on the selected channel. Any channel set to don't
care is ignored and is not used as part of the pattern. If all channels in the pattern
are set to don't care, the oscilloscope will not trigger.
4 Press the Qualifier softkey to set the time duration qualifier for the pattern.
The time qualifier can set the oscilloscope to trigger on a channel pattern whose time
duration is:
• less than a time value (<)
• greater than a time value (>)
• greater than a time value, but with timeout (Timeout). A trigger will be forced at the
timeout value, rather than occurring when the pattern is exited.
• within a range of time values (><)
• outside a range of time values (<>)
The time values for the selected qualifier are set using the qualifier time set softkeys
(< and >) and the Entry knob.
5 Select a qualifier time set softkey (< or >), then rotate the Entry knob to set the
duration qualifier time.
< qualifier time set softkey
• When the less than (<) qualifier is selected, the Entry knob sets the oscilloscope to
trigger on a pattern duration less than the time value displayed on the softkey.
• When the within time range (><) qualifier is selected, the Entry knob sets the upper
time range value.
• When the out of time range (<>) qualifier is selected, the Entry knob sets the lower
time range value.
> qualifier time set softkey
• When the greater than (>) qualifier is selected, the Entry knob sets the oscilloscope to
trigger on a pattern duration greater than the time value displayed on the softkey.
• When the within time range (><) qualifier is selected, the Entry knob sets the lower
time range value.
• When the out of time range (<>) qualifier is selected, the Entry knob sets the upper
time range value.
• When Timeout qualifier is selected, the Entry knob sets the timeout value.
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