Digital Storage Oscilloscope 23
2. Press the Type softkey, turn the Universal Knob to set select “Edge” and then push
the knob to confirm.
3. Press the Source softkey, turn the Universal Knob to select CH1, CH2, CH3, CH4,
as the trigger source.
4. Press the Slope softkey, turn the Universal Knob to select the desired trigger edge
(rising, falling or rising & falling), and then press down the knob to confirm.
5. Turn the Trigger Level Knob to adjust the trigger level to obtain stable trigger.
Note: Press the AUTO SET button will set the trigger type to Edge and slope to rising.
2.8.1.2 Pulse Trigger
Trigger on the positive or negative pulse with a specified width.
1. Press the [TRIG MENU] button on the front panel to enter the TRIGGER function
menu.
2. Press the Type softkey, turn the Universal Knob to select Pulse and then push the
knob to confirm.
3. Press the Source softkey, turn the Universal Knob to select CH1~CH4 as the
trigger source.
4. Turn the Trigger Level Knob to adjust the trigger level to the desired place.
5. Press the Polarity softkey to select Positive or Negative pulse that to trigger on. The
current trigger polarity is displayed at the upper right corner of the screen.
6. Press the When softkey, turn the Universal Knob to select the desired condition,
and push down the knob to confirm.
< (less than a time value): trigger when the positive or negative slope time of
the input signal is lower than the specified time value.
For example, for a positive pulse, if you set t (pulse real width) < 100ns, the
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