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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 |
The UVA-340 Lamp UV Accelerated Weathering Tester is a laboratory-grade system designed to simulate solar UV radiation’s long-term effects on materials, enabling manufacturers to predict product lifespan and compliance with global durability standards. Tailored for India’s extreme UV exposure (up to 6 kWh/m² daily in Rajasthan), this tester addresses critical challenges in automotive, construction, and textile industries by replicating decades of sunlight damage in weeks.
Why UV-340 Lamps Are the Gold Standard
Spectral Accuracy:
UVA-340 lamps emit wavelengths from 295–365 nm, precisely matching solar UV below 325 nm – the range causing 90% of material degradation.
Outperforms UVB-313 lamps (unnatural short-wave spikes) and Xenon arc (broad-spectrum mismatch).
India-Specific Validation:
Pre-programmed cycles mimic Gujarat’s summer UV (5.8 kWh/m²) and Kerala’s monsoonal UV/humidity cycles.
Data correlates with outdoor exposure sites in Jaisalmer and Chennai for localized accuracy.
Technical Innovations for Cost-Effective Testing
Multi-Stress Simulation:
UV + Humidity: Cyclic condensation (10–95% RH) replicates dew formation on automotive coatings or textiles.
UV + Thermal Shock: Ramp from 50°C (day) to 10°C (night) in 30 minutes to test polymer cracking.
Smart Automation:
Self-Calibrating Irradiance: Maintains 0.68 W/m² @ 340 nm (±2%) via real-time UV sensors.
AI-Powered Predictive Models: Forecast 5-year gloss loss or color fade (ΔE) from 500-hour test data.
Low-Cost Operation:
Lamp Lifespan: 1,800–2,000 hours (30% longer than UVB-313), reducing replacements by ₹45,000/year.
Energy Efficiency: 20% lower power consumption vs. Xenon testers.
Industry-Specific Applications
| Industry | Use Case | Standard Compliance |
|---|---|---|
| Automotive | Dashboard fading, tire sidewall cracking | AIS-008, ISO 4892-3 |
| Textiles | Colorfastness of sarees, outdoor upholstery | ISO 105-B02, BIS IS 2454 |
| Construction | PVC window profiles, roofing membranes | ASTM D4329, IS 16046 |
| Packaging | Degradation of biodegradable films | ASTM D5208, ISO 877 |
Testing Workflow – Simplified for SMEs
Sample Preparation:
Mount materials (up to 150x150 mm) on non-corrosive racks.
Cycle Selection:
Choose preset profiles (e.g., “Rajasthan Summer” or “Coastal Monsoon”).
Real-Time Monitoring:
Track UV intensity, temperature, and humidity via 7-inch touchscreen.
Post-Test Analysis:
Measure gloss retention (60° angle), color change (ΔE), and tensile strength loss.
Case Study: Mumbai-Based Textile Exporter
Problem: 40% export returns due to saree color fading in Middle Eastern sun.
Solution: 300-hour UV-340 testing identified low-quality dyes.
Outcome: Switched to UV-stable dyes, reducing returns to 8% and saving ₹62 lakh/year.
Key Features vs. Traditional Testers
| Parameter | UVA-340 Tester | Basic UVB Tester |
|---|---|---|
| Spectral Match | 295–365 nm (Solar True) | 280–360 nm (Unnatural) |
| Test Duration | 500 hrs = 5 yrs outdoors | 800 hrs = 5 yrs (Less Accurate) |
| Compliance | ISO 4892-3, BIS | Limited to ASTM G154 |
FAQs (UVA-340 Lamp UV Accelerated Weathering Tester)
Q1: How does UVA-340 testing differ from natural weathering?
A: It accelerates 5 years of sun exposure into 500 hours while maintaining spectral accuracy – natural tests in Mumbai take 18–24 months.
Q2: Can we test monsoonal humidity effects?
A: Yes – cycles alternate UV exposure with 95% RH condensation, simulating Kerala’s climate.
Q3: What materials require UVA-340 testing?
A: Plastics (IS 2530), automotive paints (AIS-008), dyes (IS 2454), and construction polymers (IS 16046).
Q4: Is technician training required?
A: No – pre-loaded BIS/ISO profiles enable one-click testing; multilingual guides included.
Q5: How to reduce testing costs for startups?
A: Share chamber access via rental labs in Delhi, Bengaluru, and Ahmedabad.
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