Adjusting The Amplitude; Capturing Glitches; Reversing The Polarity Of The Displayed Waveform - Fluke 91 Series II User Manual

Scopemeter series ii
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5 - 4

Capturing Glitches

Press
on INPUT A to turn GLITCH DETECTion on.
This function displays the events that occur between two
samples on INPUT A. INPUT B is turned off. The events
can be glitches or other asynchronous waveforms that are
40 ns (nanoseconds) or wider.
GLITCH detection and AVERAGE are mutually exclusive.

Reversing the Polarity of the Displayed Waveform

Press
to open the MORE INPUT window. Highlight
INPUT A (or INPUT B) and press
You can turn on and off an input and invert the INPUT A
and INPUT B display.
Invert reverses the polarity of the displayed waveform. This
is identified by the trace identifier
example, a negative-going waveform would be displayed
as positive-going, providing a more meaningful viewing
perspective in some cases.
NOTE
to open the list box.
on the display. For
91/92/96/99/105

ADJUSTING THE AMPLITUDE

You can use
for INPUT A or INPUT B
adjust input waveform attenuation. Sixteen ranges are
available. A 1:1 probe can accommodate 1 mV to a
maximum of 100V per division, and a 10:1 probe can
accommodate 10 mV to a maximum of 1 kV per division.
The amplitude can be changed in increments of 1, 2, and 5
(e.g., 100 mV, 200 mV, 500 mV). The upper row of the top
display shows the range and the type of probe for each
input.
When a 10:1 probe is used with the 10 mV or 20 mV range,
averaging is turned on automatically. (AVG 4 appears on
the display.)
Users Manual
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