Jianhu UV Aging Test Chamber DV-UV340 Series
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | DV-UV340 Series |
| Price Range | USD 700 – 7,000 (FOB Shanghai) |
| Humidity Range | ≥95% RH (in-chamber actual value) |
| Lamp Power | 40 W per tube |
| Irradiance Range | 0.72 W/m² (at 340 nm) |
| Exposure Time Setting | 1–9999 hours (adjustable) |
Overview
The Jianhu UV Aging Test Chamber DV-UV340 Series is an engineered environmental test system designed to accelerate photodegradation of polymeric materials under controlled ultraviolet (UV) radiation, temperature, humidity, and condensation cycles. It operates on the principle of fluorescent UV irradiation—specifically using UVA-340 lamps—to replicate the short-wave UV spectrum (295–365 nm) most relevant to terrestrial solar exposure. Unlike broad-spectrum xenon arc or carbon arc sources, UVA-340 lamps deliver spectrally accurate output closely matching natural sunlight below 365 nm, enabling high-fidelity simulation of outdoor weathering mechanisms including chain scission, oxidation, yellowing, gloss loss, and embrittlement in rubber, plastics, coatings, and composites.
Key Features
- UVA-340 fluorescent lamp array (40 W per tube) with calibrated spectral output compliant with ASTM G154 Cycle 1 and ISO 4892-3 Class 1 requirements
- Precise irradiance control at 0.72 W/m² (measured at 340 nm), traceable to NIST-traceable reference sensors
- Uniform UV irradiance distribution across specimen plane (±5% deviation, per IEC 60068-2-5 Annex A verification protocol)
- Integrated black-panel temperature control (range: 40–70°C) with PID regulation and real-time monitoring
- Condensation cycle capability via bottom-mounted water reservoir and controlled chamber wall cooling
- High-humidity operation up to ≥95% RH (actual in-chamber value), sustained during dark/condensation phases
- Digital programmable controller supporting multi-step exposure sequences (up to 9999 h total runtime)
- Stainless steel 304 interior chamber with UV-resistant insulation and safety interlocks for lamp access doors
Sample Compatibility & Compliance
The DV-UV340 accommodates standard flat specimens (max. 150 mm × 75 mm × 20 mm) mounted on aluminum sample racks. It supports simultaneous testing of rubber compounds (e.g., EPDM, SBR, CR), thermoplastics (PP, ABS, PC), elastomers, automotive interior trim, PV backsheet laminates, and architectural sealants. All operational parameters align with internationally recognized test standards including ASTM G154 (Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Non-Metallic Materials), ISO 4892-3 (Plastics — Methods of Exposure to Laboratory Light Sources — Part 3: Fluorescent UV Lamps), and GB/T 14522 (Chinese national standard for mechanical property retention after UV exposure). The system architecture enables full audit trail generation required for GLP-compliant laboratories and supports documentation readiness for FDA 21 CFR Part 11 validation when paired with optional data logging software.
Software & Data Management
The chamber integrates a microprocessor-based controller with password-protected parameter setting, real-time graphing of irradiance, black-panel temperature, and chamber humidity. Optional USB data export allows time-stamped CSV file generation for post-test analysis in Excel or MATLAB. For regulated environments, the optional Jianhu LabLink™ software package provides electronic signature support, user access levels (admin/operator), change history logs, and automatic report generation aligned with ISO/IEC 17025 documentation frameworks. Calibration certificates for irradiance sensors are issued annually and include uncertainty budgets per ISO/IEC 17025:2017 Clause 6.5.
Applications
This UV aging chamber serves as a critical tool in R&D and QA/QC workflows across multiple sectors. In the automotive industry, it validates color stability and tensile retention of dashboards, door panels, and weatherstrips per OEM specifications (e.g., GMW14124, Ford CETP 00.00-L-467). Photovoltaic manufacturers use it to assess delamination resistance and insulation resistance decay in backsheet materials under IEC 61215-2 MQT10 conditions. Polymer compounders employ it for comparative formulation screening—evaluating stabilizer packages, pigment dispersion efficacy, and antioxidant synergies. Additionally, it supports regulatory submissions for medical device packaging (ISO 11607-1), aerospace sealants (SAE AMS 3675), and consumer electronics housing materials (UL 746C).
FAQ
What UV lamp type is installed by default?
The DV-UV340 Series ships standard with UVA-340 lamps; UVB-313 lamps are available as optional field-replaceable modules.
Is irradiance calibration included with purchase?
Yes—a factory-issued irradiance calibration certificate (traceable to NIST standards) is provided with each unit, valid for 12 months.
Can the chamber perform cyclic tests combining UV, condensation, and dark periods?
Yes—the controller supports fully programmable multi-phase cycles per ASTM G154 Method A and ISO 4892-3 Annex B.
Does the system meet CE marking requirements?
The DV-UV340 complies with EU Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU; CE Declaration of Conformity is supplied upon shipment.
What maintenance intervals are recommended?
Lamp replacement every 1,600 hours of operation; quartz sleeve cleaning every 200 hours; full sensor recalibration annually or after 2,000 h cumulative exposure.
