EXFO FTB-7000 OTDR for FTB-200 v2 - Manual (Page 113)

Customizing Your OTDR
OTDR 99
Customizing the Acquisition Distance Range Values
To customize the distance range values:
1. From the button bar, select OTDR Setup, then the Acquisition tab.
2. Press the Custom Acquisition Parameters button.
3. If your OTDR supports singlemode, multimode or filtered wavelengths,
specify the desired fiber type.
4. From the Distance list, select the value you want to modify (the value
will become highlighted), then press the Edit button.
Note: You can revert to factory values by pressing the Default button.
5. In the displayed dialog box, enter the new value and confirm with OK.