EXFO FTB-7000 OTDR for FTB-200 v2 - Manual (Page 56)

Testing Fibers in Advanced Mode
42 FTB-7000 Series
Setting the Autorange Acquisition Time
Setting the Autorange Acquisition Time
Note: This function is available both in Advanced and Auto modes.
When performing automatic acquisitions in Advanced mode (see Testing
Fibers in Advanced Mode on page 37) or before activating Auto mode (see
Testing Fibers in Auto Mode on page 33), you can set an autorange
acquisition time for the OTDR to average acquisitions over a set time
period.
The application uses this value to determine the best settings for the test.
Note: In Template mode, the acquisition time of the reference trace is used for all
trace acquisitions, not the autorange acquisition time.
To set the autorange acquisition time:
1. From the button bar, press OTDR Setup then go to the Acquisition tab.
2. Go to the Autorange acquisition time box and press the up or down
arrow to select your preference. The default value is 30 seconds.
3. Press Exit OTDR Setup to return to the OTDR application.