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RIGOL
10 Waveform Record
Record Constant On
DS2000A provides record “Open” (record constant on) mode for waveform record.
When this mode is enabled, the oscilloscope records the waveform continuously
according to the current memory depth. The number of the waveform frames
recorded is limited by the memory depth (sample rate and horizontal timebase) and
the waveform data recorded before will be overwritten by the waveform currently
recorded. In this mode, the other oscilloscope operations (except Pass/Fail Test as
well as Acquisition Mode, Sample Mode, Sample Rate and Memory Depth in
the sample system setting and Time Base Mode in the horizontal system setting)
are not affected.
Press Utility  Record  Mode and use
to select “Open”. At this point, the
waveform record key
at the front panel turns red and the oscilloscope records the
waveform continuously according to the current memory depth (sample rate and
horizontal timebase). The oscilloscope stops recording until users press RUN/STOP
and at this point, users can play back or analyze the waveform.
In constant on mode, the oscilloscope can capture the accidental abnormal signals
during the adjustment. Following is an application example of the record constant on
mode. Use DS2000A (CH1) to observe a pulse which might contain runt pulses.
1.
Connect the pulse under test to CH1 of the oscilloscope. Adjust the oscilloscope
to make it trigger stably.
2.
Enable record constant on mode.
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User’s Guide for DS2000A