User`s manual

6-1
IM 701610-01E
Triggering
6
6.1 Setting the Trigger Mode
<For a description of this function, see page 1-11>
Relevant Keys
ACTION DELAY
X - Y
MENU MENU
PHASE
SEARCH
HORIZONTAL
VERTICAL
TRIGGER
TRIG D
HELP
ESC
SELECTRESET
SIMPLE
MODE POSITION
MATH
MISCFILE
CLEAR
TRACE
HISTORY
MEASURE
SETUP
PRESET
DISPLAY
CURSOR
CH 1
CH 2
CH 3
CH 4
POWER
COPY
IMAGE SAVE
SHIFT
ZOOM
GO/NO-GO
ENHANCED
ACQSTART/STOP
SNAP
SHOT
VDIV TIME DIV
Operating Procedure
1. Press MODE.
2. Press the soft key corresponding to the desired mode to set the trigger mode.
3. Turn the jog shuttle to set the number of times to acquire the waveform.
Explanation
Auto Mode
If the trigger condition is met within the 100-ms timeout period, the waveform is updated
on each trigger occurrence. If the trigger condition is not met after the timeout period
elapses, the waveform is automatically updated. If the time axis setting is in the range in
which the display mode is set to roll mode, the display is set to roll mode.
Auto Level Mode
If a trigger occurs within the timeout period, the waveform is displayed in the same
fashion as in the auto mode. If a trigger does not occur within the timeout period, the
center value of the amplitude of the trigger source is detected, the trigger level is
automatically changed to the center value, and the trigger is generated to update the
displayed waveform. The auto-level mode is valid only if the trigger is a simple trigger
and the trigger source is CH1 to CH4 (or CH1 to CH2 for the DL1620). For all other
cases, the operation is the same as the auto mode.
If the time axis setting is in the range in which the display mode is set to roll mode, the
display is set to roll mode.
Normal Mode
The display is updated only when the trigger conditions are met. The display will not be
updated if no trigger is caused. Therefore, to check the waveform or ground level when
no trigger is detected, use auto mode.
Chapter 6 Triggering