User manual

5 To Trigger the Oscilloscope RIGOL

DS2000A User’s Guide

5-11

Pulse Width Setting:

In this oscilloscope, positive pulse width is defined as the time difference between

the two crossing points of the trigger level and positive pulse as shown in the figure

below.

 When the Pulse Condition is set to , , or , press

Setting and use to input the desired value. The range available is from 2 ns

to 4 s.

 When the Pulse Condition is set to or , press Upper Limit

and Lower Limit and use to input the desired values respectively. The

range of the upper limit is from 10 ns to 4 s. The range of the lower limit is from

2 ns to 3.99 s. Note that the lower limit of the pulse width must be lower than

the upper limit.

Trigger Mode:

Press Sweep to select the Trigger Mode (page 5-3) under this trigger type as auto,

normal or single. 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:

Use TRIGGER LEVEL to modify the level. For details, please refer to the

description of

Trigger Level on page 5-9.

Trigger level

Positive

pulse width