User Manual

268
────────────────────────────────────────────────────
10.5 Pre-trigger
────────────────────────────────────────────────────
Screen: TRIGGER, DISPLAY
Call up the TRIGGER or DISPLAY screen
.
Move the flashing cursor to the pre-trigger
item, as shown in the figure on the left.
Use the function keys to make the
selection.
：Record from the trigger.
Selection
Selection
Method
Method
：Record from 5 DIV before the
trigger.
：Record from 10 DIV before the
trigger.
25 DIV
［5 DIV］:
5 DIV of the recording before the trigger
5 DIV
10 DIV
Trigger point
［10 DIV］:
10 DIV of the recording before the trigger
［0 DIV］:
D
oes not record the waveform before the
trigger
recording range (recording length: 25 DIV)
NOTE
RMS 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.
・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.