EXFO IQS-1500 Power Meters for IQS-500/600 - Manual (Page 49)

Performing Acquisitions
Power Meters 41
Selecting the Acquisition Mode
Selecting the Acquisition Mode
You can use three data acquisition modes, regardless of the type of
acquisition you are performing.
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Timer: the acquisition will last for the length of time you have
previously set.
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Trigger: the power meter will wait for an incoming trigger signal
before starting its next acquisition.
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Delay: the power meter will wait for a set length of time between
acquisitions.
Note: You can use one, several or all modes at the same time. If you use both the
trigger and delay modes simultaneously, the power meter will first wait for
the set delay time to elapse, then wait again for the incoming trigger signal.
If you add the timer mode, the acquisitions will be performed during a set
length of time, using both the trigger and delay modes.
In each case, measurements are taken at the selected sampling rate and
saved to a user-specified data file. The size of the data files created during
acquisition is proportional to the sampling rate and duration of the
acquisition. Higher sampling rates and longer durations generate larger
quantities of data.