Xenon Arc Weathering Test Chamber – Compact Benchtop Model OK-XD Series

Overview

The OK-XD Series Compact Xenon Arc Weathering Test Chamber is an engineered solution for accelerated weathering and light stability evaluation of materials under controlled solar-simulated irradiation. It utilizes a long-arc, air-cooled xenon lamp to reproduce the full solar spectrum—spanning 300 nm to 1200 nm—with spectral power distribution closely aligned to natural daylight (CIE No. 85, ISO 4892-2). Unlike UV fluorescent or metal halide sources, xenon arc technology delivers photometrically accurate irradiance across UV, visible, and near-infrared bands—enabling realistic simulation of photodegradation mechanisms including polymer chain scission, pigment fading, coating chalking, and thermal oxidation. The chamber integrates precise black panel temperature (BPT) control, relative humidity modulation, and programmable water spray cycles to replicate critical environmental stressors: solar radiation intensity, thermal cycling, moisture condensation, and rain erosion. Designed for laboratory-scale validation, it supports ASTM G155, ISO 4892-2, SAE J2527, and AATCC TM16 compliance protocols without requiring dedicated HVAC infrastructure.

Key Features

• Full-spectrum xenon lamp system with calibrated spectral output (300–1200 nm), traceable to NIST-traceable reference spectroradiometers
• Independent control of black panel temperature (40–85 °C) and chamber air temperature (0–150 °C) for decoupled thermal stress application
• Dual-mode humidity control: 20–75 %RH during irradiation; 20–98 %RH during dark cycles—enabling dew point simulation and condensation testing
• Programmable water spray function (1–999 min duration, intermittent or continuous) with regulated pressure (70–127 kPa) for reproducible wetting dynamics
• Modular sample mounting options: dual-layer stainless steel mesh trays for flat specimens or 500 mm diameter rotating turntable (0–3 rpm) for uniform exposure of irregular geometries
• Optimized optical filtration system—including quartz inner envelope and borosilicate outer filter—to maintain spectral fidelity over lamp lifetime (~1,500 h at nominal irradiance)
• SUS304 stainless steel interior and exterior construction ensures corrosion resistance, cleanability, and long-term dimensional stability under cyclic thermal/humidity loading
• Integrated irradiance monitoring via calibrated broadband sensor (300–800 nm and 300–1200 nm ranges), enabling closed-loop feedback control per ISO 4892-2 Annex B requirements

Sample Compatibility & Compliance

The OK-XD series accommodates diverse specimen configurations—from rigid polymer panels and textile swatches to coated metal substrates and elastomeric seals—without requiring custom fixtures. Its non-uniform sample rack design permits secure placement of asymmetric or oversized components up to 100 cm × 100 cm × 100 cm (OK-XD-1000 model). All operational parameters meet minimum performance criteria specified in ISO 4892-2:2013 (Clause 6.2), ASTM G155-22 (Section 7.3), and IEC 60068-2-5:2010. Humidity control accuracy (±2.0 %RH) and temperature uniformity (±2.0 °C) satisfy GLP-compliant test method validation requirements. Optional calibration certificates (traceable to national metrology institutes) and IQ/OQ documentation packages are available for regulated industries including automotive OEMs, medical device manufacturers, and pharmaceutical packaging suppliers.

Software & Data Management

Equipped with an embedded industrial PLC-based controller featuring a 7-inch color touchscreen interface, the chamber supports fully programmable test profiles—including multi-step irradiance ramping, temperature/humidity ramps, and synchronized spray sequences. All real-time sensor data (irradiance, BPT, chamber temp/RH, spray status) are logged at user-selectable intervals (1 s to 60 min) and stored internally for ≥30 days. Data export is supported via USB 2.0 port in CSV format for post-processing in MATLAB, JMP, or QDA software. For enterprise integration, optional Ethernet/IP or Modbus TCP modules enable remote monitoring and alarm notification via SCADA systems. Audit trail functionality complies with FDA 21 CFR Part 11 requirements when paired with validated electronic signature modules and time-stamped event logging.

Applications

• Automotive: Accelerated aging of interior trims, dashboards, and exterior coatings per SAE J2527 and GMW14124
• Textiles & Apparel: Colorfastness and tensile retention testing per AATCC TM16 and ISO 105-B02
• Building Materials: UV resistance validation of PVC window profiles, roofing membranes, and architectural sealants (ASTM D4329, ISO 4892-2)
• Electronics: Encapsulant yellowing and solder mask degradation assessment under combined thermal/UV stress
• Medical Packaging: Sterilization-induced material embrittlement and print adhesion durability per ISO 11607-1
• Academic Research: Mechanistic studies of photo-oxidation kinetics in organic semiconductors and biodegradable polymers

FAQ

What is the recommended recalibration interval for the irradiance sensor?
Annual recalibration against a NIST-traceable reference spectroradiometer is advised to maintain measurement uncertainty within ±5 % of reading.
Can the chamber operate without water spray functionality?
Yes—the spray system is fully programmable and may be disabled for dry-heat or UV-only exposure protocols.
Is lamp replacement a field-serviceable procedure?
Yes—lamp exchange requires only basic hand tools and takes <15 minutes; alignment fixtures ensure repeatable optical positioning.
Does the controller support third-party data acquisition software?
Yes—via Modbus TCP or ASCII serial protocol (RS-485), enabling integration with LabVIEW, Python-based DAQ systems, or custom MES platforms.
Are spare filters included with initial shipment?
One set of primary and secondary optical filters is supplied; additional filter kits (quartz + borosilicate) are available as consumable part numbers.