User`s guide

4 Triggering
102 InfiniiVision Oscilloscopes User’s Guide
Duration Trigger
Duration trigger lets you define a pattern, then trigger on a specified time duration of this
logical AND combination of the channels.
1 Press the [More] key in the Trigger section of the front panel, rotate the Entry knob
until Duration is displayed in the Trigger softkey, then press the Settings softkey to
display the Duration Trigger Menu.
2 For each analog or digital channel you want to include in the desired pattern, press the
Channel softkey to select the channel.
This is the channel source for the H, L, or X condition. As you press the Channel
softkey (or rotate the Entry knob), the channel you select is highlighted in the
Pattern = line directly above the softkeys and in the upper-right corner of the
display next to “Dur”. External trigger may also be specified as a channel in the
pattern when using the 2-channel and 4-channel oscilloscopes.
Adjust the trigger level for the selected analog channel by turning the Trigger Level
knob. Press the [D15-D0] key and select Thresholds to set the threshold level for
digital channels. The value of the trigger level or digital threshold is displayed in the
upper-right corner of the display.
3 For each channel you select, press the logic level softkey to set the condition for that
channel in the pattern.
• 1 sets the pattern to 1 (high) on the selected channel. A high is a voltage level that
is greater than the channel's trigger level or threshold level.
• 0 sets the pattern to 0 (low) on the selected channel. A low is a voltage level that is
less than the channel's trigger level or threshold level.
Trigger level
or threshold
Selected
channel
Duration
trigger
Channel
select
Logic level
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