1. Introduction
The Pro'sKit MT-7505 5mW Fiber Optic Visual Fault Locator (VFL) is an essential tool designed for field personnel involved in optical network installation and maintenance. It efficiently checks continuity and locates faults such as breakpoints, poor connections, and macrobends in fiber optic cables. This manual provides detailed instructions for the safe and effective use of your MT-7505 VFL.
Image: The Pro'sKit MT-7505 5mW Fiber Optic Visual Fault Locator, a pen-style device with a green cap and black body, featuring the Pro'sKit logo.
2. Product Features
- Portable and Durable Design: Engineered for ease of use and longevity in field environments.
- Universal Connector Support: Compatible with 2.5mm universal connectors, including FC, SC, and ST types.
- Protected Laser Head: Features a dust-proof and crash-proof cap design to safeguard the laser emitter.
- Dual Operating Modes: Offers both continuous wave (CW) and flashing (GLINT) modes for varied testing needs.
Image: Side view of the Pro'sKit MT-7505 VFL, highlighting the mode selection switch (CW, OFF, GLINT) and the 'VISUAL FAULT LOCATOR' label.
3. Setup
3.1 Battery Installation
The MT-7505 VFL requires two AA batteries (not included) for operation.
- Unscrew the bottom cap of the VFL unit.
- Insert two AA batteries, ensuring correct polarity (+/-) as indicated inside the battery compartment.
- Screw the bottom cap back on securely until hand-tight.
3.2 Connector Preparation
Before connecting any fiber optic cable, ensure the connector ferrule is clean and free of dust, oil, or debris. Use appropriate fiber cleaning tools and methods to prevent damage to the VFL's output port or the fiber under test.
4. Operating Instructions
4.1 Connecting the VFL
- Remove the dust cap from the VFL's output port.
- Carefully insert the 2.5mm ferrule of the fiber optic connector into the VFL's output port. Ensure a snug and secure fit.
4.2 Powering On and Mode Selection
The MT-7505 features a slide switch on its body for selecting operation modes:
- CW (Continuous Wave): Slide the switch to this position for a steady, continuous laser light output. This mode is suitable for general fault location.
- GLINT (Flashing Mode): Slide the switch to this position for a pulsed, flashing laser light output. This mode can enhance visibility over longer distances or in environments with ambient light.
- OFF: Slide the switch to this position to power off the device and conserve battery life.
4.3 Fault Location
Once the VFL is connected and powered on in either CW or GLINT mode, observe the fiber optic cable along its path. The red laser light will escape from any breaks, sharp bends, poor splices, or faulty connectors, making the fault visible to the naked eye.
For optimal visibility, perform testing in a dimly lit environment. Always avoid direct eye exposure to the laser beam.
5. Maintenance
- Cleanliness: Keep the VFL's optical output port and the fiber optic connectors clean. Use only approved lint-free cleaning swabs and isopropyl alcohol specifically designed for fiber optics.
- Dust Cap: Always replace the dust cap on the VFL's output port when the device is not in use to prevent contamination.
- Storage: Store the device in a dry, cool place, away from direct sunlight, high humidity, and extreme temperatures.
- Battery Care: If the device will not be used for an extended period, remove the batteries to prevent potential leakage and damage.
- Servicing: Do not attempt to disassemble or repair the unit yourself. Refer all servicing to qualified service personnel.
6. Troubleshooting
- No Light Output:
- Check battery installation and ensure correct polarity.
- Replace batteries if they are depleted.
- Ensure the mode switch is set to "CW" or "GLINT", not "OFF".
- Weak or Intermittent Light Output:
- Check battery level and replace if low.
- Clean the VFL's output port and the fiber connector thoroughly.
- Ensure the fiber connector is securely seated in the VFL's port.
- Inspect the fiber connector for any physical damage.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | MT-7505 |
| Brand | Pro'sKit |
| Output Power | 5mW |
| Wavelength | 650nm (typical red laser) |
| Connector Type | 2.5mm Universal (FC/SC/ST) |
| Operating Modes | Continuous Wave (CW), Flashing (GLINT) |
| Power Source | 2 x AA Batteries |
| Manufacturer | Eclipse Tools |
| ASIN | B01D5YGTFW |
Note: Specifications are subject to change without notice.
8. Safety Information
- Laser Radiation: This device emits Class IIIA laser radiation. Avoid direct eye exposure to the beam. Do not stare into the beam or view directly with optical instruments.
- Keep the device out of reach of children.
- Do not operate the device in explosive atmospheres.
- Use only the specified battery types (AA batteries).
- Dispose of used batteries and the device itself according to local environmental regulations.
9. Warranty and Support
For detailed warranty information, technical support, or service inquiries regarding your Pro'sKit MT-7505 VFL, please refer to the official Pro'sKit website or contact your authorized local distributor. Product support may also be available directly from the manufacturer, Eclipse Tools.
- Manufacturer: Eclipse Tools
- Date First Available: March 19, 2016
