User`s guide

250 5000 Series Oscilloscope User’s Guide
5 Displaying Data
Using peak detect mode to find a glitch
1 Connect a signal to the oscilloscope and obtain a stable
display.
2 To find the glitch, press the Acquire key, then, press the
Acq Mode softkey until Peak Detect is selected.
3 Press the Display key then press the
∞ Persist (infinite
persistence) softkey.
Infinite persistence updates the display with new
acquisitions but does not erase previous acquisitions. New
sample points are shown at normal intensity while previous
acquisitions are displayed in gray at lower intensity.
Waveform persistence is not kept beyond the display area
boundary.
Press the Clear Display softkey to erase previously acquired
points. The display will accumulate points until
∞ Persist is
turned off.
4 Characterize the glitch with zoom sweep:
a Press the Menu/Zoom key, then press the Zoom softkey.
b To obtain a better resolution of the glitch, expand the time
base.
c Use the horizontal position knob ( ) to pan through the
waveform to set the expanded portion of the main sweep
around the glitch.