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Edge Type:
Press Slope, then rotate the multifunction knob to select the input signal edge on
which the oscilloscope triggers. 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
is higher than the preset high trigger level.
• Falling: triggers on the falling edge of the input signal when the voltage level
is lower than the preset low trigger level.
• Either: triggers on the rising or falling edge of the input signal when the
voltage level meets the preset trigger level.
Trigger Position:
After selecting the window type, press Position to select the trigger position so as to
further specify the time point of trigger. You can also press Position continuously or
enable the touch screen to select it.
• Enter: triggers when the input signal enters the specified trigger level range.
• Exit: triggers when the input signal exits the specified trigger level range.
• Time: triggers when the accumulated hold time since the input signal entered
the specified trigger level range is equal to the window time. Press Time, and
then rotate the multifunction knob or use the pop-up numeric keypad to set
the window time. The available range is from 8 ns to 10 s.
Level Selection and Adjustment of Trigger Level:
After the trigger condition setting is completed, you need to adjust the trigger level
to correctly trigger the signal and obtain a stable waveform. Press Level Select, then
rotate the multifunction knob to select the desired level type for adjustment, and
then press down the knob to select the type. You can also press Level Select
continuously or enable the touch screen to select it.
• Level A: only adjusts the upper limit of the trigger level, and the lower limit of
the trigger level remains unchanged.
• Level B: only adjusts the lower limit of the trigger level, and the upper limit of the
trigger level remains unchanged.
To Trigger the Oscilloscope
102
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