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Help CenterUVA-340 Lamp UV Weathering Test Machine for Realistic Simulation
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SPECIFICATION
Item |
Specification |
Outside dimension |
1300W×500D×1460Hmm |
Chamber material |
Paint Spray |
Temperature range |
RT～70℃ |
Temperature fluctuation |
±2℃ |
Temperature control |
PID SSR control |
Humidity range: |
≥95%RH |
Controller |
Programmable controller, LCD touch screen |
Control mode |
Balance temperature humidity control (BTHC) |
Test cycle setting |
Exposure, condensation and water spray test cycle is programmable |
Lamp power |
40W/Piece |
Distance from sample to lamp |
50±2mm |
Centre distance between the lamp |
70mm |
Irradiance |
0.45~0.8W/m2 (optional) |
UV lamps |
Imported Atlas UV-A: 315-400nm (8pcs, 1600h lifetime) |
Standard Specimen Size |
75×290mm (24pcs) or 75x150mm (48pcs), max. thickness 5mm |
Testing time |
0～999H, adjustable |
Protection system |
Overload short circuit protection |
In an era where product longevity is synonymous with brand credibility, the UVA-340 Lamp UV Weathering Test Machine stands as a gold standard for simulating solar ultraviolet (UV) degradation. Designed to replicate the critical 295–365 nm wavelength range of sunlight, this equipment enables manufacturers to predict material behavior under real-world conditions, from arid deserts to tropical climates.
Why UVA-340 Lamps Deliver Unmatched Realism
The UVA-340 lamp is the only fluorescent UV light source that closely matches the solar cutoff of 295 nm, making it indispensable for:
Accurate Spectral Alignment: Mimicking midday summer sunlight, critical for testing polymers, coatings, and textiles.
Predictive Aging: 1,000 hours of UVA-340 exposure can simulate 2–5 years of outdoor UV damage, depending on geographic irradiance levels.
A 2023 study by the International Association of Synthetic Testing (IAST) revealed that materials tested under UVA-340 lamps showed a 92% correlation with real-world degradation rates, compared to 78% for UVB-313 lamps.
Key Features for Precision Testing
Dynamic Irradiance Control: Maintain 0.35–1.35 W/m² irradiance at 340 nm with ±2% stability, complying with ASTM G154 and ISO 4892-3.
Multi-Stress Simulation: Combine UV exposure with temperature cycling (-20°C to 80°C) and humidity (10–95% RH) for tropical or desert conditions.
Real-Time Data Analytics: Track gloss loss, color shift (ΔE), and tensile strength reduction via integrated software.
For example, a North American automotive supplier reduced warranty claims by 40% after identifying UV-induced cracking in headlight casings using UVA-340 testing.
Industry Applications Driving Innovation
Construction Materials: Validate UV stability of PVC window profiles and roofing membranes under prolonged sunlight.
Outdoor Gear: Test waterproof coatings on tents and backpacks for resistance to UV-driven hydrolysis.
Renewable Energy: Assess solar panel encapsulants for yellowing and delamination under 0.55 W/m² irradiance.
A breakthrough case involved a European packaging manufacturer using UVA-340 tests to develop a UV-resistant bioplastic that degrades only after 5 years of outdoor use, aligning with EU circular economy goals.
Compliance & Standards Integration
The UVA-340 Lamp UV Weathering Test Machine adheres to:
ASTM G154: Standard practice for operating fluorescent UV apparatus.
ISO 4892-3: Testing plastics under UV, humidity, and temperature cycles.
AATCC TM186: Weather resistance of textiles.
Optimizing Test Protocols
Sample Preparation: Use non-reflective, flat specimens (e.g., 75mm x 150mm panels) to ensure uniform exposure.
Cycle Configuration: Alternate between 8 hours of UV (0.55 W/m² at 50°C) and 4 hours of condensation (40°C) for ISO 4892-3 compliance.
Calibration Checks: Validate irradiance monthly with a calibrated radiometer and replace lamps every 1,500 hours.
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