Hioki 8841 - Page 247

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10.5 Pre-trigger
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A
s85-2
Flashing cursor
Function
display
Meaning
:
Record from the trigger.
:
Record from 5 DIV before the trigger.
:
Record from 10 DIV before the trigger.
［
5DIV］
5 DIV of the recordin
g
before the tri
gg
er
［
10 DIV］
10 DIV of the recordin
g
before the tri
gg
er
［
0DIV］
Does not record the waveform before the
tri
gg
er
recording range (recording length: 25 DIV)
25 DIV
10 DIV
5DIV
20 DIV
15 DIV
Tri
gg
er
p
oint
NOTE
RMS Recorder Function
In the RMS recorder function, using the recording start point as 0 DIV, the
trigger point can be specified in DIV (0, 5, 10 DIV).
When all trigger sources are set to OFF, the pre-trigger setting is invalid.
Procedure
Screen: TRIGGER, Waveform display
1. Display the TRIGGER or Waveform display screen.
2. Move the flashing cursor to the pre-trigger item, as
shown in the figure on the left.
3. Use the function keys to make a setting.
･
In the RMS recorder function, a trigger can be accepted immediately from
the start time. In some cases, therefore, the pre-trigger portion of a recording
may not be available.
･
In the RMS recorder function, pre-trigger cannot be carried out, because the
additional recording sets ON.