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4.4 Trigger Functions
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4.4.3 Pre-trigger
時間
時間
時間
T
トリガ位置
95%
50%
記録する範囲（記録長）
5%
[プリトリガ 95%]
トリガ前の95%とトリガ後
の5%を記録します。
[プリトリガ 50%]
トリガ前後の50%を記録
します。
[プリトリガ 5%]
トリガ前の5%とトリガ後
の95%を記録します。
(Pre-trigger 95%)
Records 95% of the
waveform before the
trigger and the
remaining 5% after
the trigger
(Pre-trigger 50%)
50% before and 50%
after the trigger.
(Pre-trigger 5%)
Records 5% of the
waveform before the
trigger and the remaining
95% after the trigger
Trigger point
Time
Time
Time
Time
Recording Range (Recording Length)
Setting Screen: Trigger
Pre trigger (0% to 100%)
Increases in number
Moves the cursor
to the right
Decreases in number
Editing Pre-trigger
Moves the cursor to the left
Confirms the value
NOTE
The pre-trigger function serves to record the waveform not only after but
also before triggering has occurred.
When recording a waveform, using the recording start point as 0% and the
recording end point as 100%, the trigger point can be specified in percent.
Setting Procedure
1. Press the
DISPLAY
key and use the right
and left
CURSOR
keys to select the
"
Trigger
"tag.
2. Select "
Pre-Trigger
" on the display menu,
then press the
ENTER
key.
(Note 1)
3. Select a value to set, then press the
ENTER
key.
When all trigger sources are "OFF", the pre-trigger is not selectable (0%).
When the pre-trigger is set, the trigger will not be registered for a certain period after the start of
measurement. (During this interval, "
Pre-trig wait
" is shown on the display.)
During external sampling, the pre-trigger setting is fixed to 0% and you cannot select menu
options. For details of setting external sampling, see 4.2.1.
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