Shanghai FO-LINK Technology Co., Ltd

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Product name : F-670 Visual Fault Locator
Item : FO-049
Price : $55.00-$76.00
Manufacturer : FO-LINK
Weight : 50.0g (without battery)
Size : 13.0mm x 176.0mm
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Details:
F-670 Visual Fault Locator
This type VFL is specially designed for field personnel who need an efficient and economical tool for fiber tracing, fiber routing and continuity checking in optical networks. It finds breakpoints, poor connections, bending or cracking in fiber optic cables; and it can find faults in an OTDR dead zone and is used for end-to-end visual fiber identification.
Applications
1. Maintenance in telecom, CATV 
2. Test Lab of optical fibers
3. Fiber routing and continuity checking in optical networks
4. Other fiber optic measurements
Features
1. 2.5mm universal connector,for 1.25mm connectors,
    FC(male)-LC(Female) adaptor also can be provided on request
2. Operates either in CW or Pulsed mode with constant output power
3. Low battery warning
4. Long battery life (up to 60 hours)
5. Drop-resistant and dust-proof design of laser head
6. Laser case ground design prevents ESD damage
7. Portable and rugged
8. Easy to useProduct
Description
The Visual Fault Locator launches 650nm visible laser light into the fiber.When the light encounters a break or sharp bend, it scatters, and the scattered light can be observed  emerging from the cable. The Visual Fault Locator can locates breaks in short patchcords, which an OTDR cannot detect due to their operating dead zone. A fault locator is also much cheaper than an OTDR. However, they are not recommended for using with dark-colored or armored cables.
 The Visual Fault Locator can be operated in either continuous wavemode (CW mode) or in pulsed mode. Pulsed mode aids in locating faults under high ambient light conditions and improve battery life. It also could be used in checking connector quality. Often a connector may appears to be perfect. But inside the connector ferrule itself, poor gluing or dirty may create a microbendin the fiber. This microbend will produce excess insertion losses or return losses,and may result in premature failure of the connector. As the visual light launches through the fiber, it emerges from the connector in question, one can readily see the distortion as a series of rings superimposed on a normal output. Bending or twisting the fiber may affect the overall intensity pattern, but not the ring pattern itself.

Specification

Model

F-670

Central wavelength

650nm±10nm (635nm is available on request)

Emitter type

FP-LD (珀罗激光二极管)

Output power

5mw

10mw

20mw

Laser Range

≥5km

≥10km

≥20km

Optical connector

2.5mm universal connector, for 1.25mm connectors, FC (Male)-LC. (Female) convertor can be provided on request

Operating model 

Both CW and Pulse available 

Pulse frequency

2Hz to 3Hz / 9Hz

Power supply

2AAA alkaline batteries 

Operating temperature

-20°C to 60°C 

Storage temperature

-40°C to 85°C 

Dimension

13 x 176mm

Weight

50g (without battery)

Standard Package 

Model

Includes

F-670

Main unit, User Manual,Individual packing


For further reports, please contact us by Mail : Jack@fo-link.com or folinkjack@gmail.com



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