Rigol DS2000E Series, Руководство пользователя, Страница: 115 / 283

Chapter 5 To Trigger the Oscilloscope RIGOL
DS2000E User’s Guide 5-33

: set the pattern of the channel selected to "Don’t Care", namely this channel
is not used as a part of the pattern. When both the channels in the pattern are
set to "Don’t Care", the oscilloscope will not trigger.
Trigger Condition:
Press When to select the desired trigger condition.

>: trigger when the duration of the pattern is greater than the preset time.
Press Time and use
or the inner knob of the navigation knob to adjust the
duration of duration trigger at a relatively smaller step or use the outer knob of
the navigation knob to adjust the duration of duration trigger at a relatively
larger step. The range is from 2 ns to 4 s.

<: trigger when the duration of the pattern is lower than the preset time. Press
Time and adjust the duration of duration trigger using
or the navigation
knob by referring to the method mentioned above. The range is from 2 ns to 4 s.

<>: trigger when the duration of the pattern is lower than the upper limit of the
preset time and greater than the lower limit of the preset time. Press Upper
Limit and adjust the duration upper limit of duration trigger using
or the
navigation knob by referring to the method mentioned above; the range is from
12 ns to 4 s. Press Lower Limit and adjust the duration lower limit of duration
trigger using
or the navigation knob by referring to the method mentioned
above; the range is from 2 ns to 3.99 s.
Note: The time lower limit must be lower than the time upper limit.
Trigger Mode:
Press Sweep to open the trigger mode list and select "Auto", "Normal" or "Single".
For the details, please refer to " Trigger Mode". The corresponding status light of
the current trigger mode turns on.
Trigger Setting:
Press Setting to set the trigger parameters (trigger holdoff and noise rejection)
under this trigger type.
Trigger Level:
Press Source to open the signal source list and select CH1 or CH2. Rotate the
TRIGGER LEVEL knob to modify the level. For the details, please refer to the
introduction of "Trigger Level".
Setup/Hold Trigger