V400 Maintenance Guide

1. Daily Maintenance

1.1 Before use, check whether the main unit and the light head operate normally and whether there are any abnormal sounds. If abnormal sounds are detected, immediately turn off the power and contact after-sales support for guidance.
1.2 Before starting the device each time, check that all LEDs in the light head are functioning properly. If any LED does not light up or shows significantly reduced brightness, contact after-sales support promptly. Always wear UV-protective goggles during inspection to protect your eyes from UV radiation.
1.3 Keep the device in a clean and dry environment to prevent moisture, damage, or electrical leakage. Regularly clean accessories and the device body with a soft cloth. Avoid using chemical-based cleaners, which may damage the device.
1.4 After each treatment, wipe the tip of the device with a 75% alcohol swab to prevent contamination and maintain light transmission efficiency.

2. Periodic Maintenance

2.1 Clean and wipe the entire device at least once a month, including the light head, main unit, battery, charger, and power adapter.
2.2 Regularly inspect the power cable for signs of wear or aging. Ensure a stable power connection to avoid treatment interruptions due to power failure.
2.3 Use a calibrated light meter to regularly measure the light intensity of the LED light head. If light output is reduced, replace the light head or individual LED bulbs as needed.

3. Disinfection Instructions

3.1 Only the light guide rod is suitable for high-temperature, high-pressure sterilization (recommended: 135°C, 2.0–2.3 bar, for 4 minutes). For all other accessories, clean or disinfect them by wiping with clean water or disinfectant solution. Do not soak any components, and avoid volatile or corrosive solvents.
For alcohol disinfection: soak a clean, dry piece of gauze in 75% ethanol solution, wipe the surface to be disinfected twice, let it sit for 3 minutes, then allow it to air dry or wipe dry with a clean, dry cloth.

4. Precautions

4.1 Always ensure the device is powered off and unplugged before cleaning or maintenance to prevent electric shock.
4.2 Use appropriate tools and materials; avoid using unsuitable or sharp tools that may damage the device.
4.3 Follow the user manual and maintenance guide strictly. Do not disassemble or modify the device without authorization. For repairs or internal maintenance, contact professional service personnel.
4.4 Before using a new device, charge it for at least 4 hours. If the battery is low, recharge promptly to avoid deep discharge. If the device will not be used for a long period, remove the lithium battery and recharge it once every 3 months to maintain battery health.