Visual Fault Locator Overview: Whether install new fiber links or troubleshooting an existing network, the faster you can locate a problem, the faster you can fix it. To locate the faults in fiber optic cables in a short time, various fiber optic testers are being invited to locate the faults of the fiber optic cable, like OTDR (optical time-domain reflectometer). However, OTDR has dead zone during the testing. Another simple and useful tester which can work in an OTDR dead zone is usually being used to work as an accessory of OTDR. It is known as VFL (visual fault locator) which can also work alone to locate the faults in fiber optic cable in a time saving manner in some situations.
VFL Functional use: Visual fault locator is now one of the most commonly used fiber optic testing devices to trace optical fibers, check fiber continuity and find faults such as breaks, bad splices and tight, sharp bends in fiber optic cable.
How VFL Works:The light used for transmit signals over fiber optic is usually at 1300 to 1650nm wavelength which is invisible to naked eyes. Unlike OTDR which measures the time of the incidence and the amplitude of the reflected pulses sent to the fiber optic cable to locate the faults, VFL uses powerful visible light at the 360 to 670nm wavelength injecting to a fiber to visually and directly locate the faults in fiber optic cable. The visible light travels along the core until it reaches a fault, where it leaks out. Light leaking through the fault can be seen through plastic coating and jackets under suitable illumination.
VFL Usage MethodVFL is very easy to use.
The steps to use a VFL are provided as following:
▶Step One: remove the plastic connector covers from both ends of the test fiber cable.
▶Step Two: connect the fiber optic visual fault locator one end of the fiber. Press the tester button and observe that light emanates from the other end of the fiber. This gives a simple indication of the continuity of the fiber link.
▶Step Three: repeat with several other fibers.Check for light that can be seen leaking from a faulty splice. This may illustrate an easy way of carrying out visual fault finding on bad splices or joints.
▶Step Four: disconnect all equipment, put the plastic covers back on the connector ends and return everything to the state it was in before you started the practical so that the next group can carry out the practical in full.
Notes during the using of a VFL:
▶1. Never look directly into the VFL's output.
▶2. Cover the VFL's output with the dust cap when the VFL is not in use.
▶3. Not recommended for use on dark colored or armored cables.
Parcel list:
Packing ox*1
Customize he afety Lanyard*1
Portable torage Bag*1
Ceramic ore*1
Visual Fault Locator*1
AMPCOM Visual fault locator (VFL) is a compact fiber optic tester that uses a laser beam to locate breaks, bends, and other faults in fiber optic cables.
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This AMPCOM VFLs can detect faults up to several kilometers away, making them ideal for identifying problems in long-distance fiber optic networks.
High quality removable steel connectors with free ceramic core
****Ceramic cores are fragile, please operate with caution****
High laser power, high light penetration, low loss, able to measure very long fiber optic cables
Three-Phase Switch - Controlling the Status of VFL at Your Will
You can choose a continuous wave output mode for steady fault illumination or a flashing output mode makes for easier fault location
Up(CW): Continuous Light
Middle(OFF): Switching Off
Down(GLINT): Twinkling Light
Endcap protects laser unit
Single shot shaping technique, prevent the fiber connetor from pollution.
Easy Operated and Cost-Effective Visual Fault Locator
Compact and intelligent design makes it a good assistance in locating breakpoints of a fiber.
Widely used in installing new fiber links or troubleshooting an existing network.
1. Dust Cover
2. Ceramic Core
3. Switch
4. PCB Board
5. Aluminum Case
6. Battery
7. End Cap
High Quality PCB Board
Better product raw materials for more stable product performance, High-quality chip identifies faults in fiber up to 15km long
Integrated Universal 2.5mm Adapter and Ceramic Core
The integrated universal 2.5mm adapter makes for easy connection to SC, ST, and FC connectors. Replaceable Zirconia Ceramic Core extends the service life and saves more cost and time. Come with FC to LC adapter.
All Metal Material
Well-proportioned metal sandblasting with matte paint design, bring good hand feelings to users.
Two Colors for Choose
The handle is finely textured for a comfortable and non-slip grip