UV-SI-260
LIB Industry
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The UVA 340 Fluorescent Lamp Light Fastness Test Instrument is equipped with 8 high-performance UVA-340 fluorescent lamps, each rated at 40 W, providing uniform and stable UV irradiance across the test area. Adjustable irradiance control typically ranges from 0.3 to 1.0 W/m²/nm at 340 nm, enabling precise alignment with standard test requirements. Optimized lamp spacing and reflective interior surfaces ensure even exposure of all specimens, minimizing test deviation.
Performance Advantages
1. Precise UVA-340 Spectral Simulation: UVA-340 lamps closely reproduce natural sunlight in the critical UV range of 295–360 nm, ensuring realistic simulation of fading, yellowing, embrittlement, and surface cracking. Stable spectral output throughout the lamp lifetime (up to 5000 hours) guarantees repeatable test results.
2. Accelerated and Time-Efficient Aging: By combining UV exposure with temperatures up to 80 °C and condensation cycles at ≥95 % RH, the chamber accelerates material degradation effectively. Aging effects equivalent to several months of outdoor exposure can often be achieved within 1000 hours of laboratory testing.
3. Uniform Exposure and Secure Sample Mounting: The system supports up to 52 standard specimens (75 × 150 mm), with adjustable holders ensuring stable positioning. Uniform UV distribution reduces variation between samples and improves test consistency.
4. Advanced Programmable Control and Monitoring: The PID control system maintains temperature stability within ±2 °C and UV irradiance deviation within ±5 %. Real-time monitoring and USB/Ethernet data export enable efficient data analysis, traceability, and reporting.
5. Durable, Low-Maintenance Design: The stainless steel interior resists corrosion under high humidity and condensation conditions. Fluorescent lamps are easy to replace, and routine maintenance requirements are minimal, supporting continuous daily laboratory operation.
6. Broad Application Coverage: Suitable for UV weathering resistance tests, UV aging tests, and lightfastness tests across textiles, plastics, coatings, automotive parts, and outdoor materials, meeting diverse industry needs.
Technical Specifications
| Model | UV-SI-260 |
| Internal Dimension (mm) | 450*1170*500 |
| Overall Dimension (mm) | 610*1330*1470 |
| Specimen Holder Size(mm) | 75*150 |
| Specimen Capacity | 52 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
The UVA 340 Fluorescent Lamp Light Fastness Test Instrument is commonly used to evaluate UV weathering resistance by exposing samples to continuous UVA radiation at 0.89 W/m²/nm (340 nm) and temperatures of 60–70 °C, simulating prolonged sunlight exposure. Lightfastness tests for textiles and printed materials often involve cyclic UV exposure combined with condensation at 50 °C and humidity above 95 % RH to assess color stability. UV aging tests for plastics and coatings typically run for 500–2000 hours, monitoring changes such as fading, cracking, gloss loss, and mechanical degradation under controlled laboratory conditions.
Video Presentation
FAQs
Q 1: Is the sprayed water heated or cold?
As standard, the UV weathering test chamber uses room-temperature water from the built-in water tank for the spray system. This setup accurately simulates natural rainfall conditions and complies with most ASTM and ISO testing standards. If a heated water spray is required to simulate special environmental conditions, it can be provided as a non-standard customized option. LIB can design and supply a tailored heated spray solution based on specific test requirements.
Q 2: Does the UV chamber have a water filtration system? Can the water be reused?
Yes. The UV chamber is equipped with an automatic water supply system and an integrated water filtration unit, ensuring stable water quality throughout the test process. During operation, water is maintained at the bottom of the chamber to support high-humidity and condensation conditions. An overflow outlet is also provided. When spraying occurs or the water level becomes too high, excess water automatically flows back into the water tank, enabling water circulation and reuse. This design ensures continuous testing while improving water utilization efficiency.
Q 3: How long does UV testing simulate one year of real-world exposure?
Under standard test conditions defined by ASTM G151 and ISO 4892-1, approximately 17 hours of UV laboratory testing can simulate one year of natural outdoor exposure for many materials.
The UVA 340 Fluorescent Lamp Light Fastness Test Instrument is equipped with 8 high-performance UVA-340 fluorescent lamps, each rated at 40 W, providing uniform and stable UV irradiance across the test area. Adjustable irradiance control typically ranges from 0.3 to 1.0 W/m²/nm at 340 nm, enabling precise alignment with standard test requirements. Optimized lamp spacing and reflective interior surfaces ensure even exposure of all specimens, minimizing test deviation.
Performance Advantages
1. Precise UVA-340 Spectral Simulation: UVA-340 lamps closely reproduce natural sunlight in the critical UV range of 295–360 nm, ensuring realistic simulation of fading, yellowing, embrittlement, and surface cracking. Stable spectral output throughout the lamp lifetime (up to 5000 hours) guarantees repeatable test results.
2. Accelerated and Time-Efficient Aging: By combining UV exposure with temperatures up to 80 °C and condensation cycles at ≥95 % RH, the chamber accelerates material degradation effectively. Aging effects equivalent to several months of outdoor exposure can often be achieved within 1000 hours of laboratory testing.
3. Uniform Exposure and Secure Sample Mounting: The system supports up to 52 standard specimens (75 × 150 mm), with adjustable holders ensuring stable positioning. Uniform UV distribution reduces variation between samples and improves test consistency.
4. Advanced Programmable Control and Monitoring: The PID control system maintains temperature stability within ±2 °C and UV irradiance deviation within ±5 %. Real-time monitoring and USB/Ethernet data export enable efficient data analysis, traceability, and reporting.
5. Durable, Low-Maintenance Design: The stainless steel interior resists corrosion under high humidity and condensation conditions. Fluorescent lamps are easy to replace, and routine maintenance requirements are minimal, supporting continuous daily laboratory operation.
6. Broad Application Coverage: Suitable for UV weathering resistance tests, UV aging tests, and lightfastness tests across textiles, plastics, coatings, automotive parts, and outdoor materials, meeting diverse industry needs.
Technical Specifications
| Model | UV-SI-260 |
| Internal Dimension (mm) | 450*1170*500 |
| Overall Dimension (mm) | 610*1330*1470 |
| Specimen Holder Size(mm) | 75*150 |
| Specimen Capacity | 52 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
The UVA 340 Fluorescent Lamp Light Fastness Test Instrument is commonly used to evaluate UV weathering resistance by exposing samples to continuous UVA radiation at 0.89 W/m²/nm (340 nm) and temperatures of 60–70 °C, simulating prolonged sunlight exposure. Lightfastness tests for textiles and printed materials often involve cyclic UV exposure combined with condensation at 50 °C and humidity above 95 % RH to assess color stability. UV aging tests for plastics and coatings typically run for 500–2000 hours, monitoring changes such as fading, cracking, gloss loss, and mechanical degradation under controlled laboratory conditions.
Video Presentation
FAQs
Q 1: Is the sprayed water heated or cold?
As standard, the UV weathering test chamber uses room-temperature water from the built-in water tank for the spray system. This setup accurately simulates natural rainfall conditions and complies with most ASTM and ISO testing standards. If a heated water spray is required to simulate special environmental conditions, it can be provided as a non-standard customized option. LIB can design and supply a tailored heated spray solution based on specific test requirements.
Q 2: Does the UV chamber have a water filtration system? Can the water be reused?
Yes. The UV chamber is equipped with an automatic water supply system and an integrated water filtration unit, ensuring stable water quality throughout the test process. During operation, water is maintained at the bottom of the chamber to support high-humidity and condensation conditions. An overflow outlet is also provided. When spraying occurs or the water level becomes too high, excess water automatically flows back into the water tank, enabling water circulation and reuse. This design ensures continuous testing while improving water utilization efficiency.
Q 3: How long does UV testing simulate one year of real-world exposure?
Under standard test conditions defined by ASTM G151 and ISO 4892-1, approximately 17 hours of UV laboratory testing can simulate one year of natural outdoor exposure for many materials.
