History
The history function can record the waveforms of the input channels before press the
Run/Stop
button. In run state,
the oscilloscope records input waveform continually; when the memory is full (reach the maximal frame), the new frames
will cover the old frames and keep the latest frames.
The oscilloscope automatically stores acquired frames. It can store up to 90,000 frames but the number may vary due to
the memory depth and timebase settings. Turn on history mode, then the stored frames can be recalled and measured.
In sequence mode, all waveforms that satisfy the trigger conditions are mapped to the display.
To view a single frame:
1.
Press the
History
button on the front panel to enable the History function.
–
The history menu shown in figure
will be displayed.
2.
Touch
History
to toggle the history function on and off.
3.
Touch
Frame No.
and use the
Universal Knob
or the virtual keypad to
specify the frame index.
4.
Touch
List
to toggle the list function on and off.
5.
Touch the navigation options
on to play backward, stop, or play
forward.
–
Touch
List Time Type
to toggle the type between
Acq Time
and
Delta T
.
6.
Touch
Interval Time
to set the playing interval by using the
Universal
Knob
or the virtual keypad.
•
In addition to manually specifying a frame, history mode supports auto-
play.
–
Touch the
option to replay the waveform from the current frame
to the first.
–
Touch the
option to stop replay.
–
Touch the
option to replay the waveform from the current frame
to the last.
Figure 5.1
History Menu
