11-4
IM DLM6054-01EN
Note
Notes about Configuring the History Feature
• In Averaging mode, Roll mode, and Repetitive Sampling mode, the DL6000/DLM6000 acquires
waveforms at each display update interval.
• When Averaging mode and Repetitive Sampling mode are selected and you acquire a waveform by
pressing SINGLE, the DL6000/DLM6000 acquires multiple waveforms and uses them to produce a
complete final waveform, but only the complete final waveform is saved in the acquisition memory.
• If you restart waveform acquisition by using the RUN/STOP key, all history waveforms that had been
stored up to that point are cleared. However, if the trigger mode is set to Single (using the SINGLE key),
the waveforms that had been stored using the SINGLE key remain in the acquisition memory as a history
waveforms unless you change the waveform acquisition conditions.
• If you stop waveform acquisition, the DL6000/DLM6000 only displays waveforms that have been acquired
completely.
• If you change the waveform acquisition conditions and start waveform acquisition, the past data stored in
the acquisition memory is cleared.
For details about waveform acquisition conditions, see section 7.2.
Notes about Recalling Data Using the History Feature
• Waveform acquisition stops when you press HISTORY. You cannot display history waveforms while
waveform acquisition is in progress.
• You can start waveform acquisition when the HISTORY menu is displayed, but you cannot change the
history settings during waveform acquisition.
record (Start).
• When you load waveform data from the specified storage medium, history waveforms up to that point are
cleared. The loaded waveform data is placed in record number zero. If you load a file containing multiple
waveforms, the most recent waveform is placed in zero, and other waveforms are placed in order in
record numbers –1, –2, and so on.
• Computations and automated measurements of waveform parameters are performed on the waveform
of the record number specified by Select. You can analyze old data as long as you do not overwrite the
acquisition memory contents by restarting waveform acquisition. If Average is set to ON, analysis is
performed on the averaged waveform.
• History waveforms are cleared when you turn the power off.
11.1 Displaying History Waveforms
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