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28 UTD1000L User Manual
Figure 4-19 Sampling with Peak Detect Mode
4.22 Observing Waveforms with use of Persistence
Select the Persistence function if you want to observe continuously the dynamic signals.
1. Press DISPLAY button to show Display Mode menu;
2. Keep pressing F4 button to select between 1sec, 3sec, 5sec, Infinite or Auto options. If
display mode is set to Infinite, dynamic signals will be kept on the screen. When set to Auto,
the Persistence function will turn on accordingly.
Figure 4-20 Persistent Display for 3 Seconds
4.23 Selecting AC Coupling
The screen displays both AC and DC voltages if the oscilloscope is set under DC coupling. If only
the small AC signal mixed in the DC signal is expected to display, please select AC coupling
mode.
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