THORLABS vytran PTR308 User Manual page 18

PTR308 Automatic Recoater with Linear Proof Tester
Note: It is not possible to abort a recoat once it has been started. Recoats involving large inject quantities (large
diameter molds) and slow inject rates may take over 60 seconds to complete. If movement of the equipment is
blocked, the motor will stall and the Handset will display an error.
Note: If the auto-fill function ever aborts, remove the fiber and clean the mold before restarting the recoat process
(otherwise you will have too much recoat material in your mold cavity).
6.3. Proof Testing
Typical values for proof testing standard single mode fiber (e.g. Corning SMF-28) are:
Fiber Dia (μm):
Peak Tension (kpsi): 100
The Peak Tension should be set to ensure that the recoat meets the minimum strength requirement for its intended
application. If using units of tension (kpsi or GPa), make sure to enter the correct fiber diameter (e.g. 125 microns)
and not the coating diameter.
!
Always wear safety classes when proof testing fiber. The fiber under test can shatter and send
glass particles flying. Any glass debris should be disposed of in a glass waste container.
To perform a Proof Test:

Make sure the recoat mold is open.

Load the fiber in the fiber holding blocks

Check that the proof test parameters are set correctly.

Press the "TEST" button on the PTR308 or execute a Proof Test command from the Handset controller.

Upon completion of the Proof Test, raise the fiber holding block tops and remove the proof tested fiber.
Note: It is not possible to abort a Proof Test once it has been started. If movement of the equipment is blocked, the
motor will stall and the Handset will display an error.
Page 16
125
Warning
Chapter 6: Recoat and Proof Test Process
Ramp Time (sec):
Hold Time (sec):
5
0
!
TTN123729-D02