This automatic optical fiber tensile testing system is designed for operator skill independent use in production and laboratory settings. Two basic model configurations enable the user to select between a setup for standard linear proof testing and with additional mandrels for rotary high strength testing.
The linear version is ideal for production proof testing with forces approximately 22 N. Motorized clamps with carefully designed rubber inserts ensure that the Fiber coloring machine will not be damaged inside the testing process while concurrently eliminating the requirement for an outside air supply. Levels of pulling force, pulling speed and hold time are programmable and conveniently accessible to the operator through the built in LCD touch screen control. Data from tests may be saved and accessed using the USB port or Ethernet interface.
Mandrels of the same design as with NYFORS’ optical fiber recoaters may be easily mounted on the proof tester inside the rotary high strength configuration. The fiber is wrapped round the two mandrels which support it using a special clamping mechanism. By doing this greater loads can be applied to the fiber, enabling breaking strength tests under controlled circumstances.
Adjustable clamp positioning facilitates testing with the highest force levels in addition to testing of short fiber lengths. The compact and light weight design definitely makes the instrument easy to move around in a laboratory environment and to integrate in a production work bench where space reaches reasonably limited. The device is a compact and lightweight instrument ideal for testing the potency of optical fibers up to 30 N. The machine is developed to meet all kinds of applications when a strength test needs to be performed.
The machine was created using the user under consideration. The optical fiber coloring machine is readily put into the guided linear clamps, and the testing starts automatically using a “One Touch” go button. The built-in microprocessor controls all the important parameters such as pulling force, pulling speed and hold time. This permits for any completely controlled test each and every time.
The machine can be connected to an external PC, which enables usage of all programmable parameters and settings. The device is adapted to face-alone use or to the integration into different subsystems. The equipment posseses an extensive capability of logging and saving information such as pulling force, pulling speed and fiber diameter and other parameters.
Two recoat injector configurations are available. The PTR307 uses a computerized pump to inject the recoat material. The volume of material dispensed through the automatic injector is controlled yourself through the top-mounted “Inject” button or programmed in to the machine making use of the tablet controller. The PTR307B includes a manual recoat injection system that requires the user to manually dispense the recoat material in to the mold cavity; a replacement injector for the PTR307B recoater can be obtained below. Please note uojthk the automated injector is only compatible with high-index recoat material, while the manual injector works with both low- and high- index recoat material; they are both sold separately below. Please contact Tech Support for more information.
he manual injector can be mounted to compatible fiber recoaters using the 4-40 screws on the recoater housing (see photo to the right). Use a 3/32″ hex factor to secure the injector before use. To connect the PTRRRM to the recoater mold, tighten the connector at the end of the green plastic tubing, then loosen by a 1/4 turn to allow for rotation.
The injector comes with a distribution valve as well as 2-position selection lever for directing the flow of recoat material. A knurled dispensing screw with the internal plunger works as a syringe for that recoat material. To fill the syringe, point the lever downward (i.e., toward the recoat bottle), then rotate the knurled dispensing screw counterclockwise until it spins freely to fill the syringe (shown in the photo off to the right). Then, to inject the FTTH cable production line, point the lever horizontally (i.e., facing the knurled screw) and rotate the screw clockwise until near the end of the travel range is reached. Avoid bottoming the dispenser as this may damage the internal plunger; also be mindful when re-engaging the threads to avoid cross threading the dispensing screw. Several fill/inject steps may be needed until air is displaced within the system. Use lens tissue plus an acetone or alcohol cleaning solution to collect any excess recoat material that flows from the mold.