JianHu JH-Series UV Aging Test Chamber
| Brand | JianHu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | JH-Series UV Aging Test Chamber |
| Quotation | Available upon Request |
| Humidity Range | ≥95% RH (in-chamber actual value) |
| UV Lamp Power | 40 W per lamp |
| Irradiance Range | 0.72 W/m² (at specimen surface, 340 nm nominal) |
| Exposure Time Setting | 1–9999 hours (programmable) |
| Illuminated Surface Temperature Range | Not specified in source data |
| Black Panel Temperature Range | Not specified in source data |
| UV Wavelength | UVA-340 nm (standard for accelerated solar simulation) |
| Internal Chamber Dimensions (L×W×H) | Not specified in source data |
Overview
The JianHu JH-Series UV Aging Test Chamber is an engineered environmental test system designed to accelerate material degradation under controlled ultraviolet radiation exposure—mimicking the photochemical effects of natural sunlight. Based on ASTM G154 and ISO 4892-3 standards, this chamber utilizes fluorescent UVA-340 lamps to replicate the critical short-wavelength UV spectrum (295–365 nm) responsible for polymer chain scission, pigment fading, and surface embrittlement. Unlike broad-spectrum xenon arc or carbon arc sources, the UVA-340 configuration provides high spectral fidelity to terrestrial solar UV at noon under clear sky conditions—enabling reproducible, quantifiable aging kinetics for comparative material qualification. The chamber integrates precision humidity control (≥95% RH), programmable exposure timing (1–9999 h), and real-time monitoring capabilities to support GLP-compliant testing protocols across R&D, quality assurance, and regulatory submission workflows.
Key Features
- UVA-340 fluorescent lamp array (40 W per lamp) delivering calibrated irradiance of 0.72 W/m² at 340 nm—traceable to NIST-traceable reference sensors
- High-humidity operational environment (≥95% RH) to simulate tropical or condensation-prone service conditions during UV exposure
- Microprocessor-based controller with intuitive touchscreen interface for setting exposure duration, cycle sequencing, and alarm thresholds
- Integrated real-time monitoring of chamber status—including lamp operation, humidity stability, and elapsed exposure time—with optional Ethernet/RS485 communication
- Stainless steel 304 interior construction with removable sample racks accommodating flat or three-dimensional specimens up to standard industry dimensions
- Compliance-ready architecture supporting audit trails, user access levels, and electronic log export for FDA 21 CFR Part 11 and ISO/IEC 17025 environments
Sample Compatibility & Compliance
The JH-Series accommodates rigid and flexible substrates including automotive coatings, architectural sealants, PVC roofing membranes, textile laminates, polycarbonate enclosures, and silicone gaskets. Specimen mounting fixtures allow for vertical or angled orientation to optimize irradiance uniformity per ASTM D4329. The system supports multi-sample parallel testing under identical spectral and hygrothermal conditions—ensuring inter-laboratory reproducibility. All operational parameters align with key international standards: ASTM G154 (Cycle A, B, C), ISO 4892-3 (Method A1), JIS D 0205, and GB/T 16422.3. Calibration certificates and validation documentation are available upon request to support IQ/OQ/PQ protocols in regulated industries.
Software & Data Management
The embedded control firmware records timestamped humidity values, lamp-on duration, and system fault events in non-volatile memory. Optional JianHu TestSuite™ software (Windows-based) enables remote supervision, automated report generation (PDF/CSV), and trend analysis of cumulative UV dose (kJ/m²). Audit trail functionality logs all parameter modifications with user ID and timestamp—meeting traceability requirements under ISO 17025 Clause 7.7 and FDA 21 CFR Part 11 Subpart B. Data export complies with LIMS integration via standard OPC UA or Modbus TCP protocols. Firmware updates are delivered via secure USB import with version-controlled release notes.
Applications
- Automotive: Evaluation of paint chip resistance, headlamp lens yellowing, and TPE weatherstrip cracking under cyclic UV/humidity stress
- Construction: Accelerated assessment of elastomeric roof coatings, PVC window profiles, and fiber-cement siding durability per ASTM D6901
- Packaging: Validation of UV barrier performance in PET bottles, metallized films, and printed corrugated board exposed to warehouse lighting
- Electronics: Screening of conformal coating adhesion loss, OLED encapsulation delamination, and PCB solder mask chalking
- Textiles & Leather: Quantification of colorfastness (ISO 105-B02), tensile strength retention, and grain cracking in coated leathers
FAQ
What UV wavelength does the JH-Series use, and why is it relevant?
The system employs UVA-340 lamps, which emit peak irradiance at 340 nm—a wavelength closely matching the most damaging portion of terrestrial solar UV radiation. This spectral match ensures realistic photochemical degradation pathways.
Is black panel temperature measurement supported?
Black panel temperature monitoring is available as a factory-installed option using calibrated thermocouples compliant with ASTM G151 Annex A2 specifications.
Can the chamber operate without UV irradiation for humidity-only conditioning?
Yes—the UV lamp circuit and humidification system are independently controlled, allowing standalone high-humidity storage or conditioning cycles.
Does the system include calibration documentation for irradiance sensors?
Each unit ships with a factory irradiance calibration certificate referencing NIST-traceable spectroradiometric measurements at 340 nm.
What maintenance intervals are recommended for lamp replacement and sensor verification?
UVA-340 lamps require replacement after 1,600 hours of cumulative operation; irradiance sensors should be verified annually using a certified reference detector.
