OK 0K-XD-1000 Xenon Arc Weathering Test Chamber

Overview

The OK 0K-XD-1000 Xenon Arc Weathering Test Chamber is an engineered environmental simulation system designed to replicate the full-spectrum solar radiation and synergistic climatic stressors—ultraviolet (UV), visible light, near-infrared (NIR), temperature, relative humidity, and water spray—that materials experience during long-term outdoor exposure. Based on the principles of accelerated photodegradation testing, it employs a 6 kW long-arc xenon lamp whose spectral power distribution closely matches natural sunlight (AM 1.5G), particularly in the critical 290–800 nm range. Optical filtering options—including Daylight-Q (for direct sunlight simulation), Window Glass-Q (for indoor-through-glass exposure), and Extended UV-Q (for enhanced UV acceleration)—enable precise tailoring of spectral output per application requirements. The chamber integrates closed-loop irradiance control via a calibrated silicon photodiode sensor, ensuring ±5% stability over time, while independent black panel temperature (BPT) and chamber air temperature regulation provide accurate thermal loading representative of real-world surface heating effects.

Key Features

• 6 kW water-cooled xenon lamp system with automatic arc stabilization and lamp life monitoring
• Real-time irradiance feedback control with auto-compensation for lamp aging and filter degradation
• Motorized 360° rotating sample turntable for uniform exposure across all specimens
• Programmable multi-segment test cycles integrating light/dark phases, temperature ramps, humidity modulation, and timed water spray events
• Deionized water spray system with adjustable pressure (0.05–0.35 MPa), duration (1–999 sec), and interval (1–999 min)
• Black panel temperature range: 30–110°C; chamber air temperature range: 10–80°C; humidity control (light cycle only): 20–75% RH
• Corrosion-resistant stainless-steel interior with double-wall insulation and forced-air circulation for thermal homogeneity
• PLC-based control interface with password-protected parameter setting, data logging, and USB export capability

Sample Compatibility & Compliance

The 0K-XD-1000 accommodates flat or contoured specimens up to 75 mm thickness and 500 mm × 700 mm footprint per test plane. It supports standard specimen holders compliant with ISO 4892-2, ASTM G155, and GB/T 16422.2 geometries—including rack-mounted flat panels, curved automotive trim mounts, and textile frame fixtures. All operational parameters are traceable to NIST-calibrated sensors and meet metrological requirements for GLP-compliant laboratories. The system architecture supports audit-ready data integrity: timestamped logs include irradiance (W/m² @ 340 nm), BPT, chamber air temperature, RH, spray activation status, and lamp operating hours. Full compliance with FDA 21 CFR Part 11 is achievable when deployed with validated software extensions (optional).

Software & Data Management

Control firmware implements deterministic real-time scheduling of up to 99 programmable test segments per cycle, each defining irradiance setpoint, temperature profile, humidity target, spray sequence, and dark period duration. Data is logged at user-selectable intervals (1 sec to 60 min) and stored internally for ≥30 days. Export formats include CSV and Excel-compatible .xlsx, enabling integration with LIMS or statistical process control platforms. Optional PC-based software provides remote monitoring, historical trend analysis, deviation alerts, and automated report generation aligned with ISO/IEC 17025 documentation standards. Calibration certificates for irradiance and temperature sensors are issued annually and archived within the system’s electronic maintenance log.

Applications

• Automotive: Accelerated evaluation of instrument panel substrates, seat fabrics, exterior paint systems, headlamp lenses, and weatherstripping per SAE J2527, PV 1303, and GMW 14124
• Coatings & Inks: Quantification of color shift (ΔE*_ab), gloss retention, chalking, and blistering in architectural paints, coil coatings, and digital printing inks
• Polymers & Elastomers: Degradation assessment of PVC profiles, polyolefin roofing membranes, EPDM gaskets, and TPE seals under cyclic thermal-moisture stress
• Textiles & Nonwovens: Lightfastness testing of awning fabrics, geotextiles, and technical apparel per AATCC TM16, ISO 105-B02, and EN ISO 105-B06
• Photovoltaics: Durability validation of backsheet laminates, encapsulant adhesion, and junction box housing materials per IEC 61215-2 MQT03 and UL 1703

FAQ

What spectral filters are included standard with the 0K-XD-1000?
The base configuration includes one Daylight-Q filter. Window Glass-Q and Extended UV-Q filters are available as optional accessories.
Is irradiance calibration performed at installation?
Yes—each unit ships with factory calibration documentation for the irradiance sensor at 340 nm, traceable to NIST SRM 2242. On-site verification and adjustment are recommended after initial commissioning.
How often must the xenon lamp be replaced?
Lamp service life is rated at 1,500 hours under continuous operation at nominal irradiance. Actual replacement interval depends on cumulative exposure dose and spectral filter selection.
Can the chamber operate without water spray function?
Yes—the spray system is fully programmable and may be disabled for dry-cycle protocols such as ISO 4892-2 Method A.
Does the system support ASTM G155 Cycle 1–7 out-of-the-box?
All seven ASTM G155 cycles are preloaded in the controller firmware and selectable via menu navigation without custom programming.