Application Exa
mples
2. Turn the Pan knob to place the center of
the zoom box close to w here the relay
contact begin
s to open.
3. Turn the Zoom
knob to magnify the
waveform in the zoom window.
The ragged waveform and the inductive load
in the circuit suggest that the relay contact
may be arcin
g as it opens.
MSO4000B and DP O4000B Series Oscilloscopes User Manual 179
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