Proof Test Process; Proof Testing - THORLABS vytran PTR406 User Manual

Fiber Recoaters with Linear Proof Testers

Proof Test Process

A predefined load is automatically applied to the fiber by pulling on the fiber with a predefined force of the right fiber
holding block as shown in Figure 41. The peak value reached during a proof test should be identical to the preset
"Peak Tension" value, if the fiber doesn't fail.

10.1. Proof Testing

Configure the PTR406/PTR406B to proof test to the desired level as described in chapter 6.3.
!
Always wear safety glasses when proof or tension testing fiber. The fiber under test can shatter and
The procedures for the automatic proof test are as follows:
1. Set the proof test parameters.
2. Load the fiber to be tested if not already loaded.
3. Make sure the mold cover is open.
Note: Anyone observing the test should also take precautions against flying glass particles.
4. Press the "TEST" button to initiate the proof test cycle.
The maximum tension applied to the fiber will be recorded and displayed. If the fiber breaks prior to reaching the
automatic proof test level, the breaking strength will be displayed.
Rev A, September 14, 2020
Warning
send glass particles flying.
Proof Testing
Chapter 10: Proof Test Process
Page 39
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