Desktop Xenon Arc Weathering Test Chamber OK-XD Series

Overview

The Desktop Xenon Arc Weathering Test Chamber OK-XD Series is an engineered environmental simulation system designed to accelerate material degradation under controlled exposure to full-spectrum solar radiation, temperature, humidity, and moisture cycling. It employs a long-arc, air-cooled xenon lamp that replicates the spectral power distribution (SPD) of natural sunlight across the critical UV–visible–near-IR range (300–1200 nm), enabling realistic assessment of photostability, colorfastness, gloss retention, cracking, chalking, and embrittlement in polymeric, textile, coating, and automotive components. Unlike UV fluorescent or metal halide sources, xenon arc technology delivers spectrally accurate irradiance—essential for correlating laboratory results with real-world outdoor service life per ISO 4892-2 and ASTM G155 protocols.

Key Features

• Full-spectrum xenon arc lamp with precision optical filtering to maintain stable SPD over time; optional daylight, window-glass, or extended-UV filter configurations available
• Integrated black panel thermometer (BPT) and chamber air temperature control with ±0.5°C accuracy and ±2.0°C uniformity across test volume
• Independent relative humidity control during both light and dark cycles (20–75% RH in irradiation mode; 20–98% RH in condensation/dark mode)
• Programmable water spray system with adjustable duration (1–999 min), frequency, and pressure (70–127 kPa) to simulate rain, dew, or thermal shock
• Rotary sample holder (500 mm diameter, 0–3 rpm) or dual-layer static mesh tray—both constructed from corrosion-resistant SUS304 stainless steel
• Robust chamber construction: seamless SUS304 interior lining; exterior options include brushed stainless steel or powder-coated carbon steel for lab integration
• Intuitive touchscreen controller with preloaded test standards (e.g., AATCC TM16, ISO 105-B02, SAE J2527) and user-defined ramp/soak profiles

Sample Compatibility & Compliance

The OK-XD series accommodates flat-panel specimens up to 100 × 100 × 100 cm (OK-XD-1000 model), supporting standardized sample mounting per ASTM D7869 and ISO 4892-2. Its modular design allows configuration-specific validation for textile colorfastness (light + perspiration per ISO 105-X12), automotive interior materials (SAE J2412/J2527), architectural coatings (ASTM D4587), and LED lighting housings (IEC 60068-2-5). All units are factory-calibrated to NIST-traceable irradiance meters and meet electromagnetic compatibility (EMC) requirements per IEC 61000-6-3. Optional audit-ready data logging supports GLP/GMP compliance, including timestamped irradiance, temperature, humidity, and spray event records aligned with FDA 21 CFR Part 11 electronic record integrity guidelines.

Software & Data Management

Equipped with embedded firmware supporting Ethernet/IP communication, the chamber enables remote monitoring and parameter synchronization via standard Modbus TCP or optional PC-based software. Real-time graphs display irradiance drift, chamber deviation, and BPT delta versus setpoint. Exportable CSV logs include all sensor channels at 1-second resolution—compatible with LIMS integration and statistical process control (SPC) platforms. Firmware updates preserve calibration coefficients and retain user-defined method libraries across versions. For regulated environments, optional 21 CFR Part 11-compliant software adds role-based access control, electronic signatures, and immutable audit trails for all test initiation, modification, and termination events.

Applications

• Textile and leather: Lightfastness (ISO 105-B02), light-perspiration fastness (ISO 105-X12), and UV resistance of dyed fabrics and synthetic leathers
• Paints & coatings: Chalking, gloss loss, and delamination evaluation per ASTM D4587 (QUV alternative) and ISO 11341
• Automotive: Dashboard, trim, and headlamp lens durability testing per SAE J2412 (filtered xenon) and J2527 (unfiltered)
• Rubber & plastics: Accelerated aging of EPDM, TPE, PVC, and polyolefins used in outdoor infrastructure and consumer electronics enclosures
• LED lighting: Thermal-optical stability assessment of phosphor-converted white LEDs under combined radiant heat and humidity stress
• Building materials: Weathering performance of roofing membranes, sealants, and façade composites per ASTM D7869

FAQ

What spectral filters are included standard with the OK-XD chamber?
All models ship with a daylight filter (CIE No. 1) compliant with ISO 4892-2 Cycle 1. Optional window-glass (CIE No. 3) and extended-UV (CIE No. 4) filters are available as accessories.
How is irradiance calibrated and maintained over lamp lifetime?
Each unit includes a factory-installed, NIST-traceable broadband radiometer. Users perform quarterly verification using the integrated self-check routine; lamp replacement (≈1,500 h) restores original spectral output when paired with certified replacement lamps.
Can the chamber operate without water spray or humidity control?
Yes—individual functions (irradiation only, dry heat, dark condensation) are programmable. Humidity and spray systems can be disabled while maintaining precise temperature and irradiance control.
Is the rotary sample stage compatible with non-circular specimens?
The 500 mm turntable accepts custom fixture plates (user-supplied) with threaded inserts; flat specimens may also be mounted on the dual-layer static tray for non-rotational exposure.
What electrical infrastructure is required for the OK-XD-1000 model?
The 6 kW configuration requires a dedicated 3-phase 380 VAC ±5%, 50 Hz supply with minimum 25 A circuit protection and proper grounding per IEC 60364-5-54.