Rigol MSO/DS2000A Series Uživatelský manuál stáhnout pdf (Strana 210)

RIGOL Chapter 11 Waveform Record

11-4 MSO2000A/DS2000A User’s Guide

Record Constant On

MSO2000A/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 length of the waveform

recorded is limited by the memory depth (sample rate and horizontal time base) 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” 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 MSO2000A/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.

Figure 11-1 Record Constant On

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Rigol MSO/DS2000A Series Uživatelský manuál Strana 210