6-7
IM 701510-01E
Activating a Trigger
6
6.5 Setting the OR Trigger (Optional for DL1540/
DL1540L)
1. Press the TYPE key to display the trigger type selection menu.
2. Press the “OR” soft key.
Selecting the trigger source, trigger slope and state and setting
the trigger level
3. Press the LEVEL/SOURCE key to display the trigger source
selection menu.
4. Press the soft key corresponding to the desired signal source, and press
the corresponding soft key to select the desired trigger slope/state
selection.
5. In case you selected “
” or “ ”, use the rotary knob to set the
desired trigger level.
Repeat steps 4 and 5 to set the trigger slope, state and level for each
trigger source.
Explanation
Types of trigger sources and setting the trigger slope, state and level
CH1/CH2/CH3/CH4
Selects which of the input signals CH1 to CH4 will be used as the trigger source.
Select the trigger slope/state from the following.
Activates a trigger when the trigger source changes from a level below the trigger level
to one above the trigger level.
Activates a trigger when the trigger source changes from the level above the trigger
level to the one below the trigger level.
X This channel will be skipped as a trigger source.
The setting limit and resolution for the trigger level is the same as for the edge trigger. Refer
to page 6-2.
Points to note when setting the OR trigger
• If the trigger type setting is changed, the OR trigger setting will be invalidated. However,
selecting the OR trigger again will restore the previous settings.
• Auto-mode operations are carried out even if the trigger mode is set auto-level mode.
Keys and Procedure
TYPE key
Rotary knob
Soft keys
LEVEL/SOURCE key
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