RIGOL Chapter 5 Trigger
5-12 MSO4000/DS4000 User’s Guide
2. Specify the edge type
Press Slope and turn the multi-function knob to select the kind of edge of
the input signal on which the oscilloscope triggers. You can also press Slope
continuously to switch the current edge type. The edge type currently selected is
displayed at the upper-right side of the screen.
: trigger on the rising edge of the input signal when the voltage level
meets the preset trigger level/threshold level.
: trigger on the falling edge of the input signal when the voltage level
meets the preset trigger level/threshold level.
: trigger on the rising and falling edges of the input signal when the
voltage level meets the preset trigger level/threshold level.
3. Specify the trigger mode
Press Sweep to select “Auto”, “Normal” or “Single” (please refer to “Trigger
Mode”).
The corresponding status light of the trigger mode currently selected in the
trigger control area (TRIGGER) at the front panel turns on.
4. Set the trigger coupling, trigger holdoff and noise rejection
Press Setting to enter the trigger setting submenu. In this submenu:
1) Press Coupling to select “DC”, “AC”, “LF Reject” or “HF Reject” (please
refer to “
Trigger Coupling”).
2) Press Holdoff to adjust the holdoff time (please refer to “Trigger
Holdoff”). The range is from 100 ns to 10 s.
3) Press Noise Reject to turn the noise rejection on or off (please refer to
“
Noise Rejection”).
Note: When the trigger source is D0 to D15, the trigger coupling and noise
rejection are invalid.
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