Visual Fault Locator (VFL), Red Light Pen 10mW Fiber Optic Cable Tester Meter with 2.5mm Connector for Fiber Fault Finding, Up to 10KM

Product Information

Visual Fault Locator which can be also called visual fault identifier (VFI), fiber fault locator, fiber fault detector, etc, is a visible laser available in red laser light and designed to inject visible light energy into an optical fiber. It is a cost-effective way to spot defects of fiber glass such as sharp bends, breaks, faulty connectors and other faults which will "leak" red or green light visually. It can also locate the fault of OTDR dead zone and make fiber identification from one end to the other end. No matter for installing new fibers or troubleshooting the existing networks, visual fault identifier is a helpful handy kit. Visual Fault locator (VFL) is a basic fiber optic for troubleshooting fiber optic link. It is a must-have test gear in every fiber technician’s tool box. Read on to get information if you are:

Visual Fault Locator - VISIFAULT Fluke Networks VisiFault™ Visual Fault Locator - VISIFAULT

The VFL directs laser light into the core of the optical fiber. The laser’s light exits the optical fiber at a break or macro bend. See connectors that have damaged fibers inside. A damaged fiber inside a connector causes a red light in the connector. You can diagnose fiber link problems over fiber optic cables or fiber cable pigtails using visual fault locators. When the fiber fault locator is designed with adapter incompatible with your connector type, using additional adapters is necessary. The laser-powered VisiFault locates fibres, verifies continuity and polarity, and helps find breaks in cables, connectors and splices.Step 1: Clean the fiber optic cable connector endface and attach your visual fault locator to the connector.

Visual Fault Locator? How Does It Work? - FullyInstrumented What is Visual Fault Locator? How Does It Work? -

Human eyes are much more sensitive to blinking light than to a steady light. So visual fault locators provides two operating modes: continuous wave and pulse light. In most cases, fiber optic installation technicians prefer the pulse light mode which turns the laser source on and off in 2Hz or 1Hz frequency. Battery Continuous and flashing modes make for easier identification. Compatible with 2.5mm and 1.25mm connectors for easy connection. Ruggedly constructed for demanding field-testing. Taking FS Pen-Type Visual Fault Locator, 1mW as example, it is small in size and easy to be carried away. The VFL enables the operator to view the optical fiber break. The optical fiber may break in places other than fiber optic cables. Inside the connector or connector ferrule, the optical fiber may break. A microscope cannot see the optical fiber unless it is damaged at the end face of the connection. Notice the red glow in the connector ferrule. If the light comes up directly on the other end, it means there is no leakage.Clean the split sleeve with an alcohol soaked cleaning swab (FSWB-C). Replace the split sleeve onto fiber ferrule and screw housing into place securely. The Visual Fault Locator is available in different shapes and sizes. Some may look like a pen, others may be built into an optical time domain reflectometer (OTDR), and some may look like a small test equipment box. Pen-Type Visual Fault Locator If the end face finish is acceptable, the VFL can be attached to a fiber connector. During this testing, the VFL should not be viewed directly. To see the light that comes out of a connector, hold a white paper in front of the fiber connector. Increase the quality of mechanical splices and prepolished connectors: Before you seal the splice or connector, adjust the fiber alignment for the minimum amount of light where the fibers touch. (Refer to the instructions from the manufacturer when you make splices and connectors.)

VFL - Visual Fault Locator | Fluke Networks VFL - Visual Fault Locator | Fluke Networks

Clean ST connector ferrule end face with a lint-free wipe (FWP-C) soaked with alcohol (reagent grade isopropyl alcohol, with a minimum 90% concentration).Step 2: Connect the fiber visual fault locator to the opti-crimp connector ferrule (with the included patch cord), turn on the VFL. See high-loss bends. If you can see the light from the VFL at a bend in a fiber, the bend is too sharp. The Visual Fault Locator (VFL), like the continuity tester, is an essential instrument in any fiber optic tool kit. The VFL is not one of the cheapest instruments in your toolbox. Function