LeCroy SDA, Руководство оператора

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SDA Operator’s Manual
6. Touch the Delta button to set up a nominal range, plus or minus a delta value in
seconds. Touch inside the Nominal Width and Delta data entry fields and enter values using
the pop-up numeric keypads.
7. Touch the Limits button to set up a precise range. Touch inside the Lower Limit and
Upper Limit data entry fields and enter values using the pop-up numeric keypads.
Or
touch the OutOfRange button and perform the same Delta or Limits setup as for
InRange triggering.
Qualified Trigger
How Qualified Triggers Work
Use a signals transition above or below a given level (its validation) as an enabling (qualifying)
condition for a second signal that is the trigger source. These are Qualified triggers. For Edge
Qualified triggers (the default) the transition is sufficient and no additional requirement is placed
on the first signal. For State Qualified triggers the amplitude of the first signal must remain in the
desired state until the trigger occurs. A qualified trigger can occur immediately after the validation,
or following a predetermined time delay or number of potential trigger events. The time delay or
trigger count is restarted with every validation.
Within Time creates a time window within which a trigger can occur.
Wait Time determines a delay from the start of the desired pattern. After the delay
(timeout) and while the pattern is present, a trigger can occur. The timing for the delay is restarted
when the selected pattern begins.
Events determines a minimum number of events of the trigger source. An event is
generated when a trigger source meets its trigger conditions. On the selected event of the trigger
source and while the pattern is present, a trigger can occur. The count is initialized and started
whenever the selected pattern begins, and continues while the pattern remains. When the
selected count is reached, the trigger occurs.
SDA-OM-E Rev H
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