Display 108
12.3 Persistence
With persistence, the oscilloscope updates the display with new acquisitions, but does not immediately erase the results
of previous acquisitions. All previous acquisitions are displayed with reduced intensity. New acquisitions are shown in
their normal color with normal intensity.
To set and clear persistence:
1. Press the Display/Persist key on the front panel to enter the DISPLAY function menu.
2. Press the Persist softkey; then turn the Universal Knob to select the desires option.
• O — Turn of persistence.
• Variable persistence time - Select dierent persistence time, the results of previous acquisitions are erased after a
certain amount of time.(1 second, 5 seconds, 10 seconds, 30 seconds )
• Innite — Select “Innite” Results of previous acquisitions are never erased. Use innite persistence to measure
noise and jitter, to see the worst- case extremes of varying waveforms, to look for timing violations, or to capture
events that occur infrequently.
Figure 12.4 Persist Set to Innite
• When Persist is On, to erase the results of previous acquisitions from the display, press the Clear Persist softkey.
The oscilloscope will start to accumulate acquisitions again.
• To return to the normal display mode, turn o persist and the previous acquisitions will be clear at once.
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