UV-SI-260
LIB Industry
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Internally, the UV Resistance Environmental Testing Devices integrates UVA/UVB lamps mounted on both sides, ten high-efficiency spray nozzles, and air-water heating elements to guarantee balanced airflow and consistent irradiance distribution throughout the test space. Up to 8 imported QUV lamps (UVA-340, UVB-313, or UVB-351), each rated at 40 W, provide stable output for roughly 5,000 hours before replacement is needed, minimizing downtime and long-term operating costs. A programmable PID color touchscreen controller supports up to 120 programs with 99 segments each, multilingual operation, and remote access via Ethernet, giving laboratories flexible, unattended long-duration testing capability with automatic alarm protection.
Working Principle of the UV Resistance Environmental Testing Devices
1. High-Density Sample Arrangement: The ring-structured aluminum holders position up to 52 specimens simultaneously at a fixed distance from the lamp arrays, ensuring every sample receives equal irradiance and eliminating variability caused by uneven positioning.
2. Black Panel Temperature Control: By measuring the combined effect of ambient chamber heat and UV lamp irradiation on a black-coated sensor, the system continuously adjusts heating output to hold BPT within a tight tolerance, replicating real material surface temperatures under sunlight.
3. Cyclic UV and Condensation Simulation: Alternating UV exposure with condensation cycles (commonly 8 hours UV at 60 °C followed by 4 hours condensation at 50 °C) reproduces the daily wet-dry, light-dark cycle materials experience outdoors, accelerating degradation mechanisms such as chalking and gloss loss.
4. Uniform Spray and Airflow Distribution: Ten nozzles arranged symmetrically on both side walls deliver even water spray for rain-erosion simulation, while an automatic filtration and recirculation system reduces water consumption during extended testing.
5. Digital Monitoring and Data Traceability: RS232, USB, and LAN interfaces enable real-time recording of temperature, irradiance, and cycle status, with historical data exportable in CSV format for compliance documentation and trend analysis.
6. Automated Program Management: The touchscreen controller executes multi-stage sequences automatically, switching between UV, condensation, and spray phases without manual intervention, improving repeatability and reducing labor requirements for long-term qualification tests.
Technical Parameters of the UV Resistance Environmental Testing Devices
| Model | UV-SI-260 |
| Internal Dimension (mm) | 450*1170*500 |
| Overall Dimension (mm) | 610*1330*1470 |
| Specimen Holder Size(mm) | 75*150 |
| Specimen Capacity | 56 Pieces |
| Irradiation Source | Fluorescent UV lamps (8) - 40 W |
| Temperature Range | Ambient ～ 90 ℃ ±2℃ |
| Black Panel Temperature (BPT) | 35 ～ 80 ℃ |
| Humidity Range | ≥95% RH |
| Bandwidth | 290 ~ 400nm |
| Irradiance Control | 0.3~20 W/㎡ |
| Water Spray Cycle | 1~9999H59M (Adjustable) |
| Distance of Specimen and lamp | 50mm |
| Controller | Programmable color LCD touch screen controller, Ethernet connection |
| Water Supply System | Automatic water supply, Water purification system |
| Safety Device | Over-temperature Protection; Over-current Protection; |
| Water Shortage Protection; Earth leakage Protection; Phase Sequence Protection | |
| Exterior Material | Steel Plate with protective coating |
| Interior Material | SUS304 stainless steel |
Typical Tests Performed of the UV Resistance Environmental Testing Devices
The UV resistance chamber supports accelerated weathering tests widely used in coatings and plastics testing (color fading and gloss retention after 500–1,000 hours), automotive exterior trim testing (UV cycling at 60–70 °C with periodic condensation), textile colorfastness testing (light exposure at controlled irradiance around 0.68–0.89 W/m²/nm at 340 nm), and construction material durability testing (combined UV and moisture cycling exceeding 2,000 hours). Test parameters are continuously logged to ensure repeatable, standard-compliant results.
Video of the UV Resistance Environmental Testing Devices
FAQs on the UV Resistance Environmental Testing Devices
Q1: Can the UV lamps be customized for higher irradiance testing?
Standard configurations use UVA-340 or UVB-313 lamps at 40 W; higher-intensity or alternative wavelength lamps can be customized to meet specific accelerated aging requirements.
Q2: Does the chamber support automatic switching between UV and condensation cycles?
Yes, the PID controller allows fully automated multi-stage programs, switching between UV exposure, condensation, and spray phases without operator intervention.
Q3: How long does it take to install a custom sample holder for irregular parts?
Standard holder configurations ship with no added lead time; custom 3D holders typically require 5–10 additional days depending on part geometry and complexity.
