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Triggering the Oscilloscope
To use Pulse Width triggering
5 Select the qualifier time set softkey (< or >), then rotate the Entry knob
to set the pulse width qualifier time.
The qualifiers can be set as follows:
< qualifier time set softkey
• When the less than (<) qualifier is selected, the Entry knob sets the
oscilloscope to trigger on a pulse width less than the time value displayed
on the softkey.
• When the time range (><) qualifier is selected, the Entry knob sets the
upper time range value.
> qualifier time set softkey
• When the greater than (>) qualifier is selected, the Entry knob sets the
oscilloscope to trigger on a pulse width greater than the time value
displayed on the softkey.
• When the time range (><) qualifier is selected, the Entry knob sets the
lower time range value.
54620-series
• 5 ns to 10 for > or < qualifier
• 10 ns to 10 s for >< qualifier, with minimum difference of 5 ns between upper and lower
settings
54640-series
• 2 ns to 10 s for > or < qualifier when source is analog channel or external trigger
• 5 ns to 10 s for > or < qualifier when source is digital channel
• 10 ns to 10 s for >< qualifier , with minimum difference of 5 ns between upper and lower
settings.