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8.7.1 Edge Trigger
Triggers on the trigger leve/threshold level of the specified edge of the input signal.
Trigger Type:
In the trigger control area (Trigger) on the front panel, press > Type, and rotate
the multifunction knob to select "Edge", then press down the knob to select it. You
can also press Type continuously or enable the touch screen to select it. At this time,
the current trigger setting information (including trigger type, trigger source, and
trigger level/threshold level) is displayed at the upper-right corner of the screen, as
shown in the figure below. The information will change based on the trigger settings.
Source Selection:
Press Source to open the signal source list and select CH1-CH4, AC Line, EXT, or D0-
D15. For details, refer to descriptions in "
Trigger Source
". The current trigger source is
displayed at the upper-right corner of the screen.
NOTE
Only when we select the channel (that has been input with signals) as the trigger source, can
we obtain a stable trigger.
Edge Type:
Press
Slope, then rotate the multifunction knob to select the input signal edge on
which the oscilloscope triggers. Then the current edge type is displayed at the upper-
right corner of the screen. You can also press Slope continuously or enable the touch
screen to select it.
• Rising: triggers on the rising edge of the input signal when the voltage level
meets the specified trigger level.
• Falling: triggers on the falling edge of the input signal when the voltage level
meets the specified trigger level.
• Either: triggers on the rising or falling edge of the input signal when the
voltage level meets the preset trigger level.
Trigger Mode:
In the trigger control area (Trigger) on the front panel, press to quickly switch
the current trigger mode. For details, refer to descriptions in "
Trigger Mode
".
To Trigger the Oscilloscope
82
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