20-2
IM PX8000-02EN
List of History Waveforms (List)
Press the
List
soft key to display the following screen.
Record number
Timestamp (time reference time information of each history waveform)
History waveform list
You can use the jog shuttle to scroll the list and specify the data to highlight.
Note
Notes on Using the History Feature
• You can start waveform acquisition when the HISTORY menu is displayed. However, you cannot change
the history feature settings while waveform acquisition is in progress.
• When the acquisition mode is set to Average, you cannot use the history feature.
• If you stop waveform acquisition, even if one complete screen’s worth of waveform data has not been
acquired, the waveform at which the trigger occurred is displayed as a single history waveform.
• The settings are restricted so that the following relationship is retained: Last record (End Record) ≤
Selected Record ≤ first record (Start Record).
• 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
history waveforms, the latest waveform is placed in zero, and earlier waveforms are placed in order to
record numbers –1, –2, and so on.
• Computation and automated measurement of waveform parameters are performed on the waveform
of the record number specified by Selected Record. You can analyze old data as long as you do not
overwrite the acquisition memory contents by restarting waveform acquisition. If Display Mode is set to
Average Record, analysis is performed on the averaged waveform.
• If many history waveforms are selected, it may take a long time to display all waveforms or average
waveforms. If this happens, the
icon appears at the top of the screen. To cancel the operation, set
Display Mode to 1 Record.
• History waveforms are cleared when you turn the power off.
20.1 Displaying History Waveforms