BNC 725 - Manual (Page 49)

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Desired delay The delay between the trigger and response signals that timerPRO
will attempt to maintain.
Duration of pulse The duration of the output signal
Inverted Output Check to set the output high until the next valid trigger.
Averaging
Delay Averaging Determines how the delay compensation will be calculated. Choose
None to calculate a new delay compensation time with each trigger
pulse; or, choose to use an average compensation based on the last 2
to 256 trigger pulses. Averaging is performed with an infinite impulse
response filter (i.e., a conventional one-pole low pass filter). The
number of triggers sets the filter response time.
Sweep
The delay between the trigger and response can be “swept” or incremented by a specified value
each time the channel is triggered. The sweep value must be positive. The increment resolution is
5 ns. However, the actual delay is rounded to the nearest 10 ns at full internal clock. For example
if the increment is set to 5 ns, the actual delay is incremented by 10 ns every second trigger event.
To try the dynamically-delayed compensation mode:
To test this mode, you will need an oscilloscope. Setup the Model 725 as shown below:
Channel A: Clocked pulse stream: High duration: 10.000 µs; Low duration: 10.000 ms. This
will act as the Trigger pulse.
Channel B: Delayed pulse after trigger: Delay: 1.000 ms; Duration 10.000 µs.
Trigger Input Logic: inB = outC; This will act as the Indicator pulse.