8-6
IM 701730-01E
Explanation
Normally, the display is updated every time a trigger is activated making it difficult to
capture transient conditions such as sudden distortion of waveforms. By using the
accumulate function, the waveform display of the acquired data remains on the screen
for the specified time.
Accumulate Mode
Persist:
Persistence mode. Accumulates waveforms using each channel color. The
intensity is gradually reduced, and the waveform disappears after the
specified accumulation time.
Color:
Color grade mode. Accumulates waveforms using eight colors indicating data
frequency information.
Setting the Accumulation Time (When in Persist Mode)
In persistence mode, you can select the time until the waveform disappears from the
following. If you select Infinite, the waveform does not disappear. The default setting is
100 ms.
100ms, 200ms, 500ms, 1s, 2s, 5s, 10s, 20s, 50s, Infinite
Grade Width (When in Color Mode)
When in color grade mode, the frequency of the data is distinguished using eight colors
as shown in the following figure. You can set the boundary value (width) of the colors
from the following. The default setting is 16.
Note that when in color grade mode, data is superimposed indefinitely.
2 to 2048 (2
n
steps)
High intensity
Red
Pink
Orange
Yellow
White
Cyan
Green
Blue
Black
28
24
20
16
12
8
4
1
0
to
to 27
to 23
to 19
to 15
to 11
to 7
to 3
Red
Pink
Orange
Yellow
White
Cyan
Green
Blue
Black
896
768
640
512
384
256
128
1
0
to
to 895
to 767
to 639
to 511
to 383
to 255
to 127
When Grade width = 4
When Grade width = 128
For example, the point (dot) that is drawn one hundred times on the screen as a result of
accumulation is red when the grade width is 4 and blue when the grade width is 128.
Notes on Accumulating Waveforms
• Automated measurement of waveform parameters and GO/NO-GO determination are
executed on the most recent waveform.
• If all the history waveforms are displayed when accumulation is in progress, all the
history waveforms are displayed using the specified accumulate mode. However, the
waveform display is slowed down.
• The built-in printer (optional) prints accumulated waveforms using two tones.
• On an external printer, only the newest waveform is printed.
• If waveform acquisition is stopped by pressing the START/STOP key, accumulation is
aborted. When waveform acquisition is restarted, the displayed waveforms are
cleared, and new accumulation is started.
Clearing Accumulated Waveforms
You can clear accumulated waveforms by pressing the CLEAR TRACE key.
8.3 Accumulating Waveforms
