THORLABS Vytran FFS2001 Series User Manual page 90

FFS2001 Series
1. Open the appropriate splice file for the typical fiber diameter being used:
Filament Type
Normal Filament, Ø125 µm Glass Fiber
Normal Filament, Ø80 µm Glass Fiber
Note: Do not modify a burnback file.
2. Select a sample of standard single mode fiber of the appropriate diameter. For Ø125 µm fiber, the
burnback should be performed with standard SMF-28 fiber.
Note: Never use PM fibers for the burnback process as this will give erroneous results.
3. Prepare the fibers normally as for splicing (strip, clean, cleave) and position the FHBs at the splice station.
4. Initiate the burnback "splice" process by pressing the blue Splice button. After the burnback, the system
will examine the Q-tips and adjust the filament calibration. If a large change is required, a dialog box will
appear asking to repeat the process. If so, prepare a new set of fibers and repeat the process. Several
iterations may be required.
Note: Make sure to break off the Q-tip ends of the burnback process prior to re-stripping the fiber. Pulling
the large Q-tip through the stripper could potentially damage the stripper blades.
5. Once the burnback process runs successfully without the prompt to re-prepare fibers, the filament
calibration is complete. Reopen the appropriate splice file.
Recoat Station
10.5.1 Remove/Align Recoat Assembly
1. Close the mold top and unscrew the fitting of the injection tube from the mold top.
2. Remove the six 4-40 flange screws at the base of the recoat mold assembly.
3. Lift the recoat assembly straight up until the electrical connectors come up out of the slot. Keep track of
the micro switch actuator post, which may slide free from the assembly. Don't let it fall into the slot.
4. Unplug the electrical connectors and tape the female to the baseplate to prevent it from falling into the
slot.
5. Before replacing the recoat assembly, make sure the baseplate and the micro switch actuator post are
cleaned of any dirt particles.
6. Replace the micro switch actuator post by inserting the long end into the recoat assembly. Verify that the
post moves up and down freely.
7. Lower the assembly straight down.
8. Replace the six 4-40 flange screws. Lightly tighten two diagonal screws only to allow for adjustment of the
recoat assembly.
Page 84
Chapter 10: Maintenance
Burnback File
burnback.ffs
burnback80.ffs
TTN286373-D02