Dropout Trigger - LeCroy WaveRunner Xi series Operator's Manual

W R X S
AVE UNNER I
I T S
NTERVAL RIGGER ETUP
1. Touch the Trigger descriptor label.
2. If applicable, touch the Smart trigger button, then the Interval trigger button.
3. Touch inside the Trigger Source field and select a source on which to trigger.
4. If available, touch inside the Coupling field and select a coupling mode.
5. Touch inside the Level field and enter a value using the pop-up numeric keypad.
6. Select positive or negative polarity.
7. Touch the LessThan button and enter a pulse-width value in the Upper Limit field.
Or touch the Greater Than button and enter a value in the Lower Limit data entryfield.
o
Or touch the In Range button.
o
8. Touch the Delta button to set up a nominal range, plus or minus a delta value in seconds. Touch inside the
7. Nominal Width and Delta data entry fields and enter values using the pop-up numeric keypads.
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, if available, touch the Out Of Range button and perform the same Delta or Limits setup as for In
o
Range triggering.

Dropout Trigger

Used primarily in single-shot applications, and usually with a pre-trigger delay, Dropout trigger can detect lost
signals. The trigger is generated at the end of the timeout period following the last trigger source transition.
H D T
OW ROPOUT RIGGER
Dropout Trigger: occurs when the timeout has expired. The bold upward-pointing arrows show where the trigger occurs.
D T S
ROPOUT RIGGER ETUP
1. Touch the Trigger descriptor label.
2. If applicable, touch the Smart trigger button, then the Dropout trigger button.
3. Select Positive or Negative polarity.
4. Touch inside the Trigger after timeout data entry field and enter a time value, using the pop-up keypad.
5. Enter a voltage level in the Level field.
70
ERIES
W
ORKS
WRXi-OM-E Rev C