OK-XD-500.0 Xenon Arc Weathering Test Chamber
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | OK-XD-500.0 |
| Xenon Lamp Power | 5 kW |
| Irradiance Range | ≤1200 W/m² |
| Light Cycle Setting Range | 1–999 h/min/sec (continuously adjustable) |
| Humidity Range (Light Cycle) | 20–75% R.H. |
Overview
The OK-XD-500.0 Xenon Arc Weathering Test Chamber is an engineered environmental simulation system designed to replicate the combined degradative effects of solar radiation, temperature, humidity, and moisture exposure under controlled laboratory conditions. It employs a 5 kW air-cooled xenon arc lamp as its primary light source—a spectral output closely matching natural sunlight across UV (290–400 nm), visible (400–700 nm), and near-infrared (700–1100 nm) regions—enabling high-fidelity acceleration of photochemical degradation mechanisms in polymeric, coated, textile, and composite materials. Unlike UV fluorescent or metal halide sources, xenon arc lamps deliver full-spectrum irradiance with appropriate spectral weighting, making them the internationally accepted reference for outdoor weathering simulation per ISO 4892-2, ASTM G155, and GB/T 16422.2. The chamber integrates precision-controlled thermal management (air and black panel temperature), dynamic humidity regulation, programmable spray/condensation cycles, and sample rotation to ensure spatial uniformity of exposure parameters—critical for reproducible, standards-compliant aging data.
Key Features
- 5 kW air-cooled xenon arc lamp with spectral fidelity validated against CIE daylight standard D65 and ASTM G155 spectral requirements
- Interchangeable optical filter systems—including Daylight-Q and Window Glass-Q filters—to simulate direct sunlight or filtered solar exposure through architectural glazing
- Dual-mode humidity control: precise RH regulation (20–75% R.H.) during light cycles via steam injection and refrigerated dehumidification
- Programmable irradiance monitoring and feedback compensation at 340 nm or 420 nm wavelength bands, maintaining ±5% stability over time
- Rotating drum sample holder with 360° continuous rotation ensuring uniform angular exposure and minimizing edge effects
- Black panel temperature sensor (BPT) and chamber air temperature control, independently adjustable within ranges compliant with ISO 4892-2 and ASTM D2565
- Integrated spray system with stainless-steel nozzles and deionized water reservoir; configurable spray duration, frequency, and pressure for rain or dew simulation
- 7-inch industrial-grade touchscreen controller with embedded test profile library, real-time parameter logging, and USB data export capability
Sample Compatibility & Compliance
The OK-XD-500.0 accommodates flat or contoured specimens up to 150 mm × 300 mm per rack position, supporting multi-layered mounting for comparative studies. Its exposure uniformity meets ASTM G155 Class A requirements (±10% irradiance variation across sample plane). The system is fully compatible with standardized test protocols including ISO 4892-2 (plastics), ISO 16474-2 (coatings), ASTM G155 (non-metallic materials), ASTM D2565 (outdoor plastic durability), GB/T 16422.2 and GB/T 1865 (Chinese national standards), as well as industry-specific methods from AATCC TM16, SAE J2527, and IEC 60068-2-9. All operational parameters—including irradiance setpoint, BPT, chamber RH, and spray timing—are traceable and auditable, supporting GLP-compliant documentation workflows and FDA 21 CFR Part 11–aligned electronic record integrity when integrated with optional PC-based software.
Software & Data Management
The chamber operates via OK-WeatherControl™ firmware, offering intuitive profile creation with nested cycle structures (e.g., 102 min light + 18 min light/spray → repeat). Real-time graphs display irradiance, BPT, chamber RH, and spray status with timestamped event markers. Data logs are stored internally (≥30 days at 1-min intervals) and exportable as CSV or PDF reports. Optional OK-DataLink™ PC software enables remote monitoring, multi-chamber fleet management, automated report generation with pass/fail thresholds, and integration with LIMS environments. Audit trails record user actions, parameter changes, and calibration events—supporting ISO/IEC 17025 accreditation requirements and internal quality audits.
Applications
This instrument serves as a core tool in R&D, QC, and failure analysis laboratories across regulated and industrial sectors. In automotive engineering, it evaluates color stability and gloss retention of interior trims, UV resistance of sealants, and adhesion durability of multi-layer coatings. Paint and ink formulators use it to rank pigment fade resistance and binder crosslink stability under cyclic wet/dry exposure. Polymer manufacturers assess embrittlement onset, surface chalking, and mechanical property decay in PP, ABS, PC, and TPE compounds. Textile labs quantify colorfastness (AATCC TM16), tensile loss, and pilling resistance in awning fabrics and technical apparel. Construction material developers validate weatherproofing performance of roofing membranes, PVC window profiles, and fiber-cement cladding. Electronics OEMs screen housing materials for yellowing, stress cracking, and label legibility retention under tropical-equivalent conditions.
FAQ
What spectral filters are included with the OK-XD-500.0?
The standard configuration includes a Daylight-Q filter (matching terrestrial solar UV/vis/NIR distribution) and a Window Glass-Q filter (simulating indoor exposure behind clear float glass). Additional filters (e.g., Extended UV-Q) are available upon request.
Does the system support automatic irradiance calibration?
Yes—the built-in broadband radiometer continuously monitors irradiance at 340 nm or 420 nm and dynamically adjusts lamp power to maintain user-defined setpoints within ±5% tolerance.
Can the chamber operate unattended for extended cycles?
Absolutely. With its sealed water reservoir, redundant safety interlocks (overheat, low water, lamp arc fault), and non-volatile memory, the OK-XD-500.0 supports uninterrupted operation for up to 1,000 hours without manual intervention.
Is compliance documentation provided for ISO/ASTM validation?
Each unit ships with a Factory Calibration Certificate traceable to NIM (National Institute of Metrology, China), plus a Performance Verification Report confirming irradiance uniformity, temperature stability, and humidity accuracy per ISO 4892-2 Annex B.
How is sample rotation synchronized with exposure parameters?
The drum rotates at 1 rpm with phase-locked timing—ensuring consistent dwell time per angular segment relative to lamp position and spray nozzle alignment, critical for inter-laboratory reproducibility.
