User`s manual

7-10
IM 701610-01E
Show Map (A List of Time Stamps)
You can list the number of the waveform data stored in the acquisition memory and the
time at acquisition end.
One screen displays 75 data points of information. You can scroll through the data by
using the jog shuttle.
Precautions and Restrictions
• You cannot use the history function while the acquisition mode is set to Average.
(Displayed history records will be meaningless.)
• The history memory function cannot be used in repetitive sampling mode.
• If you suspend waveform acquisition before the current record has been fully read, the
record will not be recorded in the history.
• You cannot use the history function while roll mode is selected.
• History records are not lost when waveform acquisition is stopped and then restarted,
provided that acquisition conditions remain unchanged.
• If you change the acquisition settings, history memory is cleared when you restart
acquisition using the new settings.
• If CLEAR TRACE is pressed during waveform acquisition or after the waveform
acquisition is stopped, data in the history memory are cleared when the data
acquisition is restarted.
Precautions to be Taken when Recalling Data from the History Memory
• Acquisition will stop when the history memory menu is displayed. It is not possible to
recall waveform data from the history memory while acquisition in progress.
• Acquisition can be restarted while the history memory menu is displayed. However, it
is not possible to change history memory settings such as Selected Record No., while
acquisition is in progress.
• Settings are restricted by the following formula.
End Rec No. ≤ Selected Record No. ≤ Start Rec No.
• If you load a waveform record from floppy disk, or external storage device, the loaded
waveform becomes Record 0. In the case of multiple records (sequential store), the
records will be loaded sequentially, with the latest record as 0.
• Computation and automatic measurement of waveform parameters are always
performed on the currently displayed waveform, i.e. the waveform identified by the
record No. designated for Selected Record No. Analysis of old data is possible as
long as the history memory content remains unchanged after acquisition is restarted.
• In roll mode only the record most recently acquired when acquisition was stopped will
be loaded into record No. 0.
• Time at acquisition end is displayed under Show map.
• Turning OFF the power will delete the entire contents of the history memory.
7.6 Using the History Memory