Not all sunlight is kind. Materials exposed to outdoor environments over long periods are highly susceptible to ultraviolet (UV) radiation, particularly short-wave UV, which can cause polymer chain breakdown, surface degradation, and color fading.
The LIB industry UV Test Chamber addresses this challenge by compressing years of natural outdoor exposure into just a few hundred hours of accelerated UV testing. By simulating extreme UV conditions, temperature fluctuations, and humidity variations, this advanced uv weathering tester enables precise and repeatable testing, providing material developers and quality engineers with reliable insights into long-term performance.
The true value of a UV Test Chamber lies in its ability to replicate the environmental stresses faced by different materials. Here we present its performance across three representative sample types, highlighting both its versatility and precision.
Material Challenges: EVA encapsulant yellowing and backsheet brittleness are common problems for photovoltaic panels under prolonged sun exposure.
Chamber Performance:
Equipped with a Black Panel Temperature (BPT) control system, the UV Test Chamber continuously monitors surface temperatures and maintains a closed-loop control of irradiance.
Eight high-performance QUV lamps (UVA-340, UVB-313, UVB-351), each rated 40 W, provide stable light output for up to 5000 hours. This ensures that accelerated UV testing conditions remain consistent throughout extended runs.
Why It Matters: Stable UV irradiance and precise thermal control allow the chamber to accurately simulate 25 years of outdoor exposure in a laboratory setting, ensuring photovoltaic conversion efficiency remains unaffected by material degradation.
Material Challenges: Outdoor furniture is prone to fabric fading, coating chalking, and reduced tensile strength of synthetic plastics.
Chamber Performance:
The chamber features a condensation and water spray system with 10 high-efficiency nozzles, simulating rain and dew cycles to reproduce real-world wet-dry conditions.
Dual-sided UVA/UVB lamp placement, along with air-water heating elements, ensures uniform exposure for accelerated UV testing equipment applications.
Why It Matters: Outdoor furniture is exposed to both sunlight and moisture. By replicating thermal cycles and wet-dry alternations, the chamber validates coating stability, color retention, and structural durability under extreme conditions.
Material Challenges: Sealants, aluminum composite panel coatings, and exterior waterproof materials are particularly vulnerable to UV-induced degradation.
Chamber Performance:
Precision Black Panel Temperature control coupled with programmable PID touchscreen ensures accurate thermal simulation, reflecting high-temperature degradation effects.
Versatile sample holders support up to 52 standard specimens (75 mm × 150 mm) and can be customized to accommodate irregular shapes, ensuring uniform UV exposure across diverse building materials.
Why It Matters: Accurately replicating UV irradiance and temperature extremes helps manufacturers verify long-term durability and weather resistance, providing scientific confidence in product safety and performance.
| Feature / Parameter | Specification |
|---|---|
| UV Source | 8 U.S.-made QUV lamps (UVA-340, UVB-313, UVB-351), 40 W each, 5000-hour lifespan |
| Temperature Control | Black Panel Temperature (BPT) with PID closed-loop control for precise sample surface monitoring |
| Humidity & Condensation | Up to 95% RH; 10 high-efficiency spray nozzles simulate rain and condensation |
| Sample Holders | 52 flat aluminum holders for standard specimens; customizable 3D holders for irregular shapes |
| Multi-Environment Simulation | UV exposure, temperature, humidity, condensation, rain simulation, darkness cycles |
| Controller & Data Management | PID programmable touchscreen, up to 120 programs × 99 segments; USB/RS232/LAN for real-time logging, CSV export, and remote monitoring |
| Safety Features | Auto alarms for temperature or water system deviations, ensuring safe and stable operation |
Standards Compliance: ASTM G154, ISO 4892-3, IEC 61215
Data Management: Real-time logging with USB export for streamlined analysis and record keeping.
PID Programmable Controller: Intuitive touchscreen interface, multilingual support, enabling easy program creation and monitoring.
Remote Access: Ethernet/PC connectivity allows real-time monitoring, historical data review, and remote management.
Automated Testing: Scheduled runs control UV intensity, temperature, and wet-dry cycles, minimizing manual supervision.
Flexible Sample Handling: Standard and custom holders ensure uniform exposure for specimens of varying sizes and shapes, guaranteeing repeatable results for any material type.
Ensuring material performance under prolonged sunlight begins in the lab. The LIB industry UV Test Chamber, a professional uv weathering tester, provides accelerated UV testing equipment capabilities for solar panels, outdoor furniture, and building materials. Its combination of precise UV control, multi-environment simulation, and reliable operation ensures accurate, repeatable, and scientifically valid testing results.
Next Steps: Contact our application engineers today to design a customized accelerated UV testing solution for your products and guarantee long-term durability under real-world conditions.
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