Duogalia Fiber Optical Power Meter with 10Km Visual Fault Locator User Manual

1. Introduction

This manual provides detailed instructions for the safe and effective operation of your Duogalia Fiber Optical Power Meter with integrated 10Km Visual Fault Locator (VFL). This device is designed for use in CCTV communication engineering and fiber optic network maintenance, offering precise optical power measurements and efficient fiber fault localization.

2. Product Overview

The Duogalia Fiber Optical Power Meter is a versatile 3-in-1 tool combining an optical power meter, a 10Km Visual Fault Locator, and an LED lighting function. It supports 10 standard wavelengths and offers a wide test range for various fiber optic applications.

Figure 2.1: The Duogalia Fiber Optical Power Meter, illustrating its compact design and main display. The device is shown with its various adapters for fiber optic connections.

Figure 2.2: Device dimensions (180mm length, 89mm width, 42mm depth) and the 10 supported wavelengths: 850nm, 980nm, 1270nm, 1300nm, 1310nm, 1490nm, 1550nm, 1577nm, 1625nm, 1650nm.

3. Key Features

• Wide Wavelength Range: Measures 10 standard wavelengths: 850/980/1270/1300/1310/1490/1550/1577/1625/1650nm.
• Broad Test Range: Optical power measurement from -70dBm to +10dBm.
• Integrated Functions: Combines optical power meter, 10Km Visual Fault Locator, and LED lighting.
• High Accuracy: Measurement error less than ±0.2dB.
• User Calibration: Supports user-defined calibration for enhanced precision.
• Data Storage: Stores up to 500 sets of measurement data.
• Display Modes: Simultaneous display of linear mW and non-linear dBm.
• Power Management: Features backlight selection and automatic shutdown after 10 minutes of inactivity.
• Durable Design: Sensitive chip, sturdy internal structure, and anti-fall rubber coating for extended service life.
• Universal Interface: 2.5mm universal interface supports SC, FC, and ST connectors. LC connector support is optional via adapter.

Figure 3.1: Overview of the device's high-precision capabilities and integrated functions.

4. Setup

4.1 Battery Installation

1. Locate the battery compartment on the back of the device.
2. Open the battery cover.
3. Insert two AA batteries (not included), ensuring correct polarity.
4. Close the battery cover securely.

Figure 4.1: Battery compartment location and button labels for reference.

4.2 Connecting Fiber Optic Cables

The device features a 2.5mm universal interface compatible with SC, FC, and ST connectors. An LC adapter is optional.

1. Identify the appropriate connector type for your fiber optic cable (SC, FC, or ST).
2. Attach the corresponding adapter (if necessary) to the optical power meter's input port.
3. Carefully insert the fiber optic cable into the adapter until it is securely seated.

Figure 4.2: Universal interface supporting SC, FC, and ST connectors. LC is optional.

5. Operating Instructions

Figure 5.1: Button functions for the Duogalia Fiber Optical Power Meter.

5.1 Power On/Off and Backlight

• Power On: Long press the Power button () to turn the device on.
• Backlight: Short press the Power button to toggle the screen backlight.
• Power Off: Long press the Power button to turn the device off. The device will also automatically shut down after 10 minutes of inactivity.

5.2 Wavelength Selection

• Short press the Wavelength button () to cycle through the 10 available wavelengths (850nm, 980nm, 1270nm, 1300nm, 1310nm, 1490nm, 1550nm, 1577nm, 1625nm, 1650nm). The selected wavelength will be displayed on the screen.

5.3 Optical Power Measurement

• Connect the fiber optic cable to the optical power meter's input port.
• Select the desired wavelength using the Wavelength button.
• The optical power measurement will be displayed in dBm and mW on the screen.

5.4 Relative Power Measurement (REF)

• To set a reference value, short press the REF button () while a stable power reading is displayed. The current reading will be set as 0dB.
• Subsequent measurements will show the difference relative to this reference value.

5.5 Visual Fault Locator (VFL) Operation

• Short press the VFL/LED button () to activate the VFL. The default mode is constant light.
• Short press again to switch to flashing mode (2Hz).
• Short press a third time to turn off the VFL.
• LED Lighting: Long press the VFL/LED button to turn on/off the integrated LED light.

5.6 Data Saving and Review

• Save Data: Short press the SAVE button () to save the current measurement value. The device can store up to 500 records.
• Review Data: Short press the SAVE button to browse saved measurement records.
• Clear Data: While browsing saved records, long press the SAVE button to clear all stored data.

5.7 User Self-Service Calibration

To enter calibration mode:

1. Ensure the device is powered off.
2. Simultaneously press and hold the Power button and the Wavelength button for 2 seconds.
3. The device will boot into the calibration function interface.

In calibration mode:

• Press the REF button to increase the calibration value by 0.1 dB.
• Press the dB button to decrease the calibration value by 0.1 dB.

6. Maintenance

6.1 Cleaning Fiber Optic Connectors

Regular cleaning of fiber optic connectors and adapters is crucial for accurate measurements and to prevent damage. Use only approved fiber optic cleaning tools and methods.

• Always power off the device before cleaning.
• Use a lint-free wipe and isopropyl alcohol or a specialized fiber optic cleaning pen.
• Clean the ferrule end-face of the fiber optic cable and the internal surfaces of the adapters.

6.2 Replacing the VFL Ceramic Core

The VFL ceramic core is replaceable. If the VFL output degrades or is damaged, follow these steps:

1. Ensure the device is powered off.
2. Carefully remove the metal head from the VFL port.
3. Extract the old ceramic core.
4. Insert a new ceramic core.
5. Reattach the metal head.

Figure 6.1: Illustration of the replaceable ceramic core for the Visual Fault Locator.

6.3 Battery Replacement

When the battery indicator on the display shows low power, replace the AA batteries as described in Section 4.1.

7. Troubleshooting

• No Power: Check if batteries are correctly installed and charged. Replace if necessary.
• Inaccurate Readings: Ensure fiber optic connectors are clean and free of dust or debris. Verify the correct wavelength is selected. Perform user calibration if needed.
• VFL Not Working: Check if the VFL ceramic core is properly seated and undamaged. Ensure batteries have sufficient power.
• Display Issues: If the display is dim, short press the power button to activate the backlight.

8. Specifications

Figure 8.1: Key specifications of the Fiber Optical Power Meter.

9. What's in the Box

• Duogalia Fiber Optical Power Meter
• Instruction Manual
• FC Adapter
• SC Adapter

10. Warranty and Support

For warranty information and technical support, please refer to the product packaging or contact Duogalia customer service through the retailer where the product was purchased. Please retain your proof of purchase for warranty claims.