User`s guide

RIGOL 10 Waveform Record
DS2000 User’s Guide
10-4
Record Constant On
DS2000 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 length of waveform recorded is limited
by the memory depth 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. 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 DS2000 (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.