LeCroy DDA 7 Zi series, Руководство оператора

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Operator's Manual
WP700Zi-OM-E-RevA
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4. Touch inside the Level data entry field and enter a value using the slider bar at the bottom of the window.
Click the keypad button on the slider bar to enter a value using the pop-up keypad. Touch the
Default button to use a preset value.
5. Select Positive or Negative polarity.
6. Define the width of the glitch you are looking for. You can trigger on any glitch less than a chosen pulse-
width (
Upper Limit ) or you can trigger on a specified range.
x
When you touch the Less Than button , the Upper Limit data entry field is made available.
x
When you touch the In Range button , the Upper Limit and Lower Limit fields are made
available.
7. Touch inside the limit fields and enter a time value using the slider bar's value slider, pop-up keypad
button, or Default button.
Note : Use the TriggerScan tab to run the Trainer (a wizard-like tool to configure triggers), Save , and Load
trigger setups for reuse.
Interval Trigger
How Interval Triggers Work
While Glitch trigger performs over the width of a pulse, Interval trigger performs over the width of an interval, with
the signal duration (period) separating two consecutive edges of the same polarity: positive to positive or negative
to negative. Use Interval trigger to capture intervals that fall short of, or exceed, a given time limit. In addition, you
can define a width range to capture any interval that is itself inside or outside the specified range: an exclusion
trigger by interval.
Interval Less Than: For this Interval Trigger, generated on a time interval smaller than the one that you set,
choose a maximum interval between two like edges of the same slope (positive, for example).
The trigger is generated on the second (positive) edge if it occurs within the set interval. The instrument initializes
and restarts the timing for the interval whenever the selected edge occurs.
Figure 4-20. Interval Trigger that triggers when the interval width is smaller than the selected interval.
The broken, upward-pointing arrow indicates a potential trigger, while the bold one shows where the
actual trigger occurs — on the positive edge within the selected interval.