Xenon Arc Weathering Test Chamber – OK-XD Series (Imported)

Overview

The OK-XD Series Xenon Arc Weathering Test Chamber is an imported environmental simulation system engineered for accelerated weathering and light stability evaluation of polymeric, textile, coating, automotive, and outdoor materials. It employs a long-arc, air-cooled xenon lamp to replicate the full solar spectrum—from UV-B (280–315 nm) through visible (380–780 nm) to near-infrared (780–1200 nm)—enabling precise correlation with real-world outdoor exposure conditions. Unlike UV fluorescent or metal halide systems, xenon arc technology delivers spectrally accurate irradiance, critical for assessing photodegradation mechanisms such as chain scission, chalking, gloss loss, color shift, and embrittlement. The chamber integrates calibrated irradiance control, programmable temperature/humidity profiles, and dynamic water spray cycles to simulate combined stressors: solar radiation, thermal cycling, moisture condensation, and rain erosion. Designed for compliance-driven laboratories, it supports standardized test protocols across global regulatory frameworks including ISO 4892-2, ASTM G155, GB/T 16422.2, and AATCC TM16.

Key Features

• Full-spectrum xenon arc source with precision spectral filtering—maintains stable 300–800 nm and 300–1200 nm irradiance outputs within ±10% tolerance over lamp lifetime.
• Black panel thermometer (BPT) and chamber air temperature control with ±0.5°C accuracy and ±2.0°C uniformity—ensuring reproducible thermal loading during irradiation.
• Independent humidity control system supporting dual-range operation: 20–75% RH during light cycles and 20–98% RH during dark condensation phases.
• Programmable water spray module with adjustable duration (1–999 min), intermittent/continuous modes, and regulated pressure (70–127 kPa) for realistic rain simulation.
• Flexible sample mounting options: dual-layer flat stainless-steel mesh racks for planar specimens or motorized 500-mm-diameter turntables (0–3 rpm) enabling uniform angular exposure for irregular or three-dimensional samples.
• Robust construction using interior SUS304 stainless steel (corrosion-resistant, non-outgassing) and exterior powder-coated steel or optional SUS304 cladding—optimized for long-term reliability in high-humidity environments.
• Modular lamp assembly with quick-release design—facilitates field replacement of xenon lamps (rated ≥1500 h at nominal irradiance) without recalibration or service downtime.

Sample Compatibility & Compliance

The OK-XD series accommodates diverse specimen geometries—including fabrics, painted panels, plastic extrusions, composite laminates, and automotive trim components—via configurable rack configurations. Its internal dimensions (ranging from 50×50×40 cm to 100×100×100 cm) support both standard test coupons and custom-sized industrial parts. All models are fully compliant with internationally recognized weathering standards: ISO 4892-2 (xenon arc methods), ASTM D529 (textile colorfastness), GB/T 8427 (ISO 105-B02), GB/T 14576 (photostability of dyes), and AATCC TM16 (lightfastness of textiles). For regulated industries, the system’s analog/digital control architecture supports audit-ready documentation when integrated with external data loggers meeting FDA 21 CFR Part 11 requirements for electronic records and signatures.

Software & Data Management

Equipped with a microprocessor-based controller featuring a 7-inch TFT touchscreen interface, the OK-XD chamber enables intuitive programming of multi-step test sequences—including irradiance setpoints, temperature ramps, humidity profiles, spray intervals, and dark/light phase durations. Real-time monitoring displays chamber temperature, black panel temperature, relative humidity, irradiance intensity, and elapsed test time. Optional RS485/Modbus RTU or Ethernet interfaces allow integration into centralized laboratory information management systems (LIMS) or SCADA platforms. While the base unit does not include GLP-compliant software, its open communication protocol permits third-party validation packages for 21 CFR Part 11 compliance, including user access controls, electronic signatures, and immutable audit trails for test method execution and parameter changes.

Applications

• Evaluation of colorfastness and photostability in dyed textiles, leather, and upholstery per ISO 105-B02, AATCC TM16, and GB/T 8427.
• Accelerated aging of automotive exterior materials—including bumpers, dashboards, and headlamp lenses—to assess UV-induced yellowing, cracking, and gloss reduction per SAE J2527 and ISO 4892-2.
• Weathering resistance testing of architectural coatings, roof membranes, and PVC siding under cyclic irradiance, moisture, and thermal stress per ASTM D4329 and GB/T 16422.2.
• Photostability assessment of pharmaceutical packaging polymers and medical device housings per ICH Q1B guidelines for photostability testing.
• Lightfastness qualification of outdoor signage, traffic paints, and reflective sheeting per ASTM D2244 and GB/T 15102-2006.

FAQ

What spectral ranges does the xenon lamp cover, and how is irradiance calibrated?
The lamp emits continuous radiation from 280 nm to 1200 nm. Two calibrated irradiance bands are available: 300–800 nm at 550 W/m² ±10% and 300–1200 nm at 1000 W/m² ±10%. Calibration is performed using NIST-traceable broadband radiometers prior to shipment.
Can the chamber operate without water spray functionality?
Yes—the spray system is fully programmable and may be disabled for dry-irradiation tests such as UV-only stability assessments or high-temperature photooxidation studies.
Is black panel temperature (BPT) measurement included as standard?
Yes—each unit includes a thermocouple-based black panel sensor mounted adjacent to the sample plane, conforming to ISO 4892-2 and ASTM G155 requirements for surface temperature monitoring.
What maintenance is required for long-term operational reliability?
Routine tasks include quarterly cleaning of optical filters and lamp housing, biannual verification of humidity sensor calibration, and annual inspection of spray nozzles and water filtration elements. Lamp replacement is recommended after ≥1500 hours of operation at rated power.
Are custom chamber sizes or specialized sample fixtures available?
Yes—OEM engineering support enables dimensional customization (e.g., extended depth for large automotive panels) and bespoke fixture design (e.g., angled mounts for solar reflector testing or multi-angle sample holders) upon request.