J.ZAO LM-300 Auto Focimeter Lensmeter User Manual

1. Product Overview

The J.ZAO LM-300 is an advanced auto focimeter lensmeter designed for precise and efficient measurement of various optical lenses. It features a high-speed processing system, a user-friendly touch screen interface, and supports measurement of ultra-low transmittance and low dispersion lenses. This manual provides essential information for the proper setup, operation, and maintenance of your LM-300 device.

Figure 1.1: The J.ZAO LM-300 Auto Focimeter Lensmeter, showcasing its sleek design and integrated display.

Figure 1.2: Various perspectives of the LM-300, including front, back, and side views, illustrating its compact and functional design.

2. Key Features

• Advanced Measurement Algorithm: Utilizes over 80 spot data points for calculation, ensuring highly accurate measurements for progressive multi-focal lenses.
• Green LED Light Source: Employs a green LED light source, eliminating the need for Abbe constant compensation, which simplifies operation and enhances data accuracy.
• High-Speed Processing System: Equipped with a new extensible integrated high-speed processing system capable of up to 4000 DMIPS, allowing for rapid image processing and data collection.
• Versatile Lens Compatibility: Supports measurement of ultra-low transmittance and low dispersion lenses.
• Extended Prism Measurement: The upper limit of prism measurement is as high as 20 delta.
• Automatic Lens Type Identification: Automatically identifies the type of lens being measured, streamlining the process.
• Comprehensive Data Output: Supports printout of PD (Pupillary Distance), PH (Pupillary Height), and UV (Ultraviolet) measurement results.
• 7-inch Full Screen Touchable Display: Features a large, rotatable touch screen for intuitive operation and clear visual feedback.

Figure 2.1: A visual representation of the LM-300's key product characteristics, highlighting its advanced features and capabilities.

3. Product Components and Controls

Familiarize yourself with the various components and controls of the LM-300 to ensure proper operation.

Figure 3.1: A detailed diagram labeling the key components of the LM-300, including the adjustable LCD screen, lens fixing template, axial position measurement baffle, dot button, bezel control buttons, and memory button.

• Adjustable LCD Screen: The 7-inch full-screen touchable display can be adjusted for optimal viewing angles.
• Lens Fixing Template: Used to securely hold the lens in place during measurement.
• Axial Position Measurement Baffle: Assists in accurately positioning the lens for measurement.
• Dot Button: For specific measurement functions or data input.
• Bezel Control Buttons: Used for navigation and selection within the interface.
• Memory Button: To save or recall measurement data.
• Three-point Fixed Lens Pressure Handle: Ensures stable and secure lens placement.
• Miniature Cone Measuring Port: Designed to protect the lens during measurement.

Figure 3.2: Close-up views illustrating the three-point fixed lens pressure handle, the miniature cone measuring port for lens protection, and the adjustable screen angle for user convenience.

4. Setup

1. Unpacking: Carefully remove the LM-300 from its packaging. Retain all packaging materials for future transport or storage.
2. Placement: Place the device on a stable, level surface free from vibrations and direct sunlight. Ensure adequate space around the unit for ventilation and operation.
3. Power Connection: Connect the provided power adapter to the DC 12V input port on the rear of the LM-300. Plug the adapter into a suitable power outlet.
4. Initial Power On: Press the power button to turn on the device. The system will initiate and display the main measurement interface.
5. Screen Adjustment: Adjust the angle of the LCD screen for comfortable viewing. The screen can rotate approximately 90 degrees from horizontal to vertical.

5. Operating Instructions

The LM-300 features an intuitive touch screen interface for all operations.

Figure 5.1: The imported LCD HD screen of the LM-300, displaying the measurement interface. This screen utilizes advanced calculation methods for quick and accurate progressive lens measurements.

Figure 5.2: Illustration of the LM-300's 7.0-inch rotatable color touch screen, which can be adjusted approximately 90 degrees for flexible operation perspective.

Figure 5.3: Examples of the LM-300's operation interface, showcasing its simple design, folded shortcut tabs for a more scientific layout, and a user-centered interface for convenient operation.

5.1 Basic Measurement Procedure

1. Power On: Ensure the device is connected to power and press the power button. The system will boot up and display the main measurement screen.
2. Place the Lens: Carefully place the lens to be measured onto the lens fixing template. Use the three-point fixed lens pressure handle to secure it. Ensure the miniature cone measuring port is properly aligned to protect the lens.
3. Automatic Identification: The LM-300 will automatically identify the type of lens (e.g., single vision, bifocal, progressive).
4. Measurement: The device will automatically perform the measurement. The results for spherical power, cylindrical power, axis angle, and prism will be displayed on the screen.
5. Progressive Lens Measurement: For progressive lenses, the LM-300 uses an advanced multi-point area measurement method to ensure high accuracy.
6. PD/PH/UV Measurement: If required, follow the on-screen prompts to measure Pupillary Distance (PD), Pupillary Height (PH), and UV transmittance rate.
7. Print Results: Use the print function on the touch screen to print out the measurement results via the built-in thermal printer.

5.2 Navigating the Interface

• Touch Screen: All functions and settings are accessible via the 7-inch touch screen.
• Main Screen: Displays real-time measurement data and primary function buttons (e.g., Measure Mode, Print, Clear).
• Settings Menu: Access system settings, display options, user profiles, and product information through the dedicated menu icon.
• Shortcut Tabs: The interface includes folded shortcut tabs for quick access to frequently used functions and a more organized layout.

6. Maintenance

Proper maintenance ensures the longevity and accuracy of your LM-300.

• Cleaning: Regularly clean the exterior of the device with a soft, dry cloth. For the screen, use a screen-specific cleaning solution and a microfiber cloth. Avoid abrasive cleaners or solvents.
• Lens Holder Cleaning: Keep the lens fixing template and measuring port clean from dust and debris to ensure accurate readings. Use a soft brush or air blower if necessary.
• Printer Maintenance: Replace the thermal paper roll when it runs out. Refer to the printer compartment for instructions on loading new paper (width 57mm).
• Storage: When not in use for extended periods, store the LM-300 in a clean, dry environment, away from extreme temperatures and humidity.
• Calibration: The LM-300 is factory calibrated. If you suspect calibration issues or experience consistent inaccuracies, contact authorized service personnel. Do not attempt to self-calibrate.

7. Troubleshooting

This section addresses common issues you might encounter with your LM-300.

8. Technical Specifications

9. Warranty and Support

For detailed information regarding warranty coverage, technical support, and service, please refer to the official warranty card included with your product or contact the manufacturer/seller directly. Keep your purchase receipt as proof of purchase for warranty claims.