UVA-340 Lamp UV Accelerated Weathering Tester

SPECIFICATION

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.

1. 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).

2. 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.

1. 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.

2. 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.

3. 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.

1. Sample Preparation:

• Mount materials (up to 150x150 mm) on non-corrosive racks.

2. Cycle Selection:

• Choose preset profiles (e.g., “Rajasthan Summer” or “Coastal Monsoon”).

3. Real-Time Monitoring:

• Track UV intensity, temperature, and humidity via 7-inch touchscreen.

4. Post-Test Analysis:

• Measure gloss retention (60° angle), color change (ΔE), and tensile strength loss.

• 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.

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.