5.1 Triggering Measurement Start and Stop
105
3
5
Chapter 5 Specifying Criteria for Measurements
Enable the trigger function (set to On), select recording start/stop timing, and set trigger
criteria.
Make these settings on the [Trig & Alm] screen.
See: "Key Setting Procedure" (p .101)
Selecting Triggering Criteria (Trigger Source)
If trigger settings have been made on the [CH] screen, skip steps 1 and
2. (The settings in steps 1 and 2 are interlinked with those on the [CH]
screen.)
1 Select the [CH] or [Trig&Alm] Screen.
2 Enable triggering [On].
3 Select measurement start/stop timing.
(Start and stop triggers can be set for each channel
independently.)
4 Select trigger combining logic.
Setting options: ( : default setting)
Start
Start recording according to Start Trigger cri-
teria.
Stop Stop recording according to Stop Trigger cri-
teria.
Start/Stop Start and stop recording according to the
Start and Stop Trigger criteria, respectively.
Setting options: ( : default setting)
OR
Triggering occurs when any one of the speci-
fied trigger source criteria is
met. (includes ex-
ternal trigger signal)
AND Triggering occurs only when all of the specified
trigger source criteria are met. (includes exter-
nal trigger signal)
34
See: "Using External
Triggering" (p .106)
[AND]
One waveform has
crossed above 0 V as the
other crosses on the ups-
lope
[OR]
Either waveform crosses 0V
on the upslope
Start Measurement
Trigger: Level
Level: 0 V
Slope:
Triggering Criteria
To apply a trigger when the upslope () of the waveform crosses zero volts:
Start Measurement
T T T T
When [AND] is selected
No triggering occurs initially if trigger
criteria are already met when mea-
surement starts.
Before triggering can occur, trigger cri-
teria must first become invalid once.
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