Fluke 91 Series II User Manual page 45

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The test tool automatically selects attenuation, time base, and triggering to give you a
readable display of the waveform.
Press this to look at the Trigger menu now.
This begins to display as the waveform rises above the trigger level (+SLOPE) or falls below
the trigger level (-SLOPE). Watch the display; the waveform starts at a different place as
trigger + or - is selected. Continue with +SLOPE selected.
This activates the ADJUST LEVEL function. The level value is displayed in the right bottom,
and is visualized by the "
displayed in the top right of the display as an indication that your test tool is triggered.
PERFORMING SOME SCOPE OPERATIONS
a
" icon on the left edge of the display. Ensure also that RUN is
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