Hioki LR8432-20, Инструкция по эксплуатации

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4.1 Setting Criteria to Start and Stop Recording
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Select the [Start] or [Start&Stop] trigger timing set-
ting to record waveforms both before and after trigger
events.
However, pre-trigger recording is disabled when
[Stop] trigger timing is selected.
Make the setting on the [Trig & Alm] screen.
Setting Criteria for Pre-Trigger Recording (Pre-Trig)
T
For the
[Pre-Trig]
setting, specify the time (or
number of days) to record before a trigger event.
To record waveforms after a trigger event, simply spec-
ify a recording time that is longer than the pre-trigger
recording time.
Difference between [Waiting for pre-trigger] and [Wait-
ing for trigger]
When measurement is started, the specified pre-trigger
length is recorded. This period is indicated as the
[Waiting
for pre-trigger] .
After the specified pre-trigger length has been recorded, the
period indicated as
[Waiting for trigger] continues until a
trigger occurs.
During the
[Waiting for pre-trigger] period, trigger events
are not recognized even when the trigger criteria are met.
The maximum settable
time span is displayed.
Change by 1
Change by 10
T
Pre-Tirg: 15 minutes
Recording
length
(10 minutes)
Recording ends
at trigger event
Recording Time shorter than
Pre-Trigger Time
Recording Time longer than
Pre-Trigger Time
T
Pre-Tirg: 5 minutes
Recording
length
(15 minutes)
Records both before
and after trigger event Recording ends
when recording
length has passed
Pre-Trigger vs. Recording Time