User`s manual

6-9
IM 701610-01E
Triggering
6
Setting the HF Rejection ON or OFF
8. Press the HF Reject soft key to the desired frequency to set HF rejection ON or
OFF.
Setting the Hysteresis
9. Press the Hysteresis soft key to select
or .
Setting the Hold Off
10. Set the hold off time according to the procedures given in 6.4, “Setting the Hold Off
Time.”
Explanation
An edge trigger is generated when the trigger source signal crosses a specified level.
Selecting the Trigger Source
Select from the following list of choices.
• CH1 to CH4 (or CH1 to CH2 for the DL1620)
• Ext (EXT TRIG IN terminal on the rear panel (or EXT. terminal on the front panel of
the DL1620), see section 6.6, “Setting the External Trigger (SIMPLE)”)
• Line (power signal, see section 6.7, “Generating Trigger on the Power Signal
(SIMPLE)”)
Setting the Trigger Level
Range: 8 div within the screen
Resolution: 0.01 div
For example, the resolution is 0.02 mV when the V/DIV setting is 2 mV/div.
You can also reset the trigger level to the current offset voltage with one key operation.
Setting the Trigger Slope
Select the trigger activation method relative to changes in trigger source level from the
following three choices.
: Activated when the trigger source changes from below the trigger level to above the
trigger level (rising).
: Activated when the trigger source changes from above the trigger level to below the
trigger level (falling).
: Activated on either a rising edge or falling edge.
Setting the Trigger Coupling
Select from the following list of choices.
AC: Uses a signal that is obtained by removing the DC component from the trigger
source signal.
DC: Uses the trigger source signal as the trigger signal.
Setting the HF Rejection
Set ON when you wish to use a signal source obtained by removing the high-frequency
components from the trigger signal as the trigger source.
6.5 Setting the Edge Trigger (SIMPLE)