This automatic optical fiber tensile testing system is made for operator skill independent use in production and laboratory options. Two basic model configurations permit the user to select between a set up for standard linear proof testing along with additional mandrels for rotary high strength testing.
The linear version is designed for production proof testing with forces as much as 22 N. Motorized clamps with carefully designed rubber inserts be sure that the FTTH cable production line is not really damaged within the testing process while at the same time eliminating the requirement for another air supply. Degrees of pulling force, pulling speed and hold time are programmable and conveniently accessible to the operator with the built-in LCD touchscreen display control. Data from tests could be saved and accessed through the USB port or Ethernet interface.
Mandrels of the same design like NYFORS’ optical fiber recoaters may be easily mounted on the proof tester inside the rotary high strength configuration. The fiber is wrapped across the two mandrels which support it having a special clamping mechanism. This way greater loads does apply on the fiber, enabling breaking strength tests under controlled circumstances.
Adjustable clamp positioning facilitates testing using the highest force levels along with testing of short fiber lengths. The compact and light-weight weight design definitely makes the instrument easy to maneuver in a laboratory environment as well as integrate in a production work bench where space is at reasonably limited. The device is a compact and light-weight instrument suitable for testing the strength of optical fibers up to 30 N. The device is developed to meet all sorts of applications when a strength test must be performed.
The device was created with the user in mind. The optical fiber proof-testing machine is readily positioned in the guided linear clamps, and also the testing starts automatically having a “One Touch” go button. The built-in microprocessor controls each of the important parameters such as pulling force, pulling speed and hold time. This allows for a completely controlled test every time.
The equipment can be linked to an outside PC, which enables access to all programmable parameters and settings. The device is adapted to stand-alone use or even to the integration into different subsystems. The machine comes with an extensive capacity for logging and saving information like pulling force, pulling speed and fiber diameter along with other parameters.
Two recoat injector configurations can be found. The PTR307 uses an automated pump to inject the recoat material. The quantity of material dispensed from the automatic injector is controlled yourself using the top-mounted “Inject” button or programmed in to the machine making use of the tablet controller. The PTR307B comes with a manual recoat injection system that needs the consumer to manually dispense the recoat material into the mold cavity; a substitute injector for that PTR307B recoater can be obtained below. Please be aware uojthk the automatic injector is just suitable for high-index recoat material, while the manual injector works with both low- and high- index recoat material; both of them are sold separately below. Please contact Tech Support for additional information.
he manual injector may 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 key to secure the injector just before use. To get in touch the PTRRRM for the recoater mold, tighten the connector at the end of the green plastic tubing, then loosen with a 1/4 turn to allow for rotation.
The injector is equipped 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 acts as a syringe for the 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 inside the photo to the correct). Then, to inject the FTTH cable production line, point the lever horizontally (i.e., facing the knurled screw) and rotate the screw clockwise until close to the end from the travel range is reached. Avoid bottoming out your dispenser as this may damage the inner plunger; also be careful when re-engaging the threads in order to avoid cross threading the dispensing screw. Several fill/inject steps may be required until air is displaced within the system. Use lens tissue and an acetone or alcohol cleaning solution to collect any excess recoat material that flows through the mold.