User Manual

UTD1000L
User Manual
30
Observing Waveforms with use of Persistence Selecting AC Coupling
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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.
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.
To select AC coupling do the followin
g
1. Press CHANNEL button to display Channel
menu
2. Press F1 button( F2 for UTD1000DL to set
Coupling to AC
Figure 4-21 Persistent Display for Seconds
3
Figure 4 A UTD1000CL AC Coupling
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