APKJ AP-HX-2 Walk-in Environmental Test Chamber
| Key | Brand: APKJ |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | AP-HX-2 |
| Pricing | Upon Request |
Overview
The APKJ AP-HX-2 Walk-in Environmental Test Chamber is an industrial-grade, large-volume environmental simulation system engineered for long-duration thermal and hygrothermal stress testing of bulky components, subassemblies, and finished products. Designed in accordance with fundamental principles of psychrometric control and balanced temperature–humidity conditioning (BTHC), the chamber maintains precise, stable, and spatially uniform climatic conditions across its entire working volume through a closed-loop proportional-integral-derivative (PID) controlled system. It operates on the principle of simultaneous heat exchange and moisture mass transfer—leveraging cascade refrigeration for deep sub-zero capability, high-efficiency nickel-chrome heating elements, and stainless-steel sheathed immersion-type humidifiers—to achieve repeatable, traceable test environments compliant with international reliability engineering protocols.
Key Features
- Robust modular construction using polyurethane foam-insulated sandwich panels with galvanized steel exterior cladding and SUS304 stainless steel interior lining—ensuring structural integrity, corrosion resistance, and low thermal leakage.
- High-performance centrifugal air circulation system with multi-blade impeller design, enabling uniform airflow distribution and minimizing thermal/hygrometric gradients (≤ ±3.0 °C temperature uniformity; ≤ ±3.0 % RH humidity uniformity within defined working space).
- Dual-stage hermetic cascade refrigeration system utilizing either Tecumseh (France) or Bitzer (Germany) compressors—capable of reaching -70 °C minimum operating temperature with water-cooled condensation (0.1–0.3 MPa supply pressure; inlet water ≤25 °C).
- Japan-sourced touch-screen LCD controller with real-time data logging, programmable ramp/soak profiles, and comprehensive fault diagnostics—including over-temperature, dry-heater protection, compressor overpressure, phase-sequence monitoring, and water-level interlock.
- BTHC (Balanced Temperature and Humidity Control) architecture: dynamically matches heating/humidification output to thermal/hygric load, eliminating overshoot and ensuring energy-efficient, steady-state operation over extended test durations.
Sample Compatibility & Compliance
The AP-HX-2 accommodates large-format test specimens up to 5.4 m (L) × 2.6 m (W) × 2.1 m (H), making it suitable for automotive ECUs, server racks, aerospace avionics enclosures, medical imaging systems, and industrial control cabinets. Its validated performance conforms to multiple internationally recognized test standards including: ASTM D4332 (Conditioning Containers), ISO 4892-2 (Plastics—Laboratory Light Exposure), IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-30 (Damp Heat, Cyclic), MIL-STD-810H Method 502.7 (Low Temperature), Method 503.6 (Temperature Shock), and Method 507.6 (Humidity). All configurations support GLP-compliant validation documentation packages per IQ/OQ/PQ requirements.
Software & Data Management
The integrated Japanese touch-screen controller supports full-cycle test programming—including multi-step ramps, dwells, and cyclic profiles—with configurable dwell times, rate limits, and alarm thresholds. Logged data (temperature, relative humidity, runtime, fault events) is timestamped and exportable via USB to CSV format. Optional Ethernet interface enables remote monitoring and integration into centralized lab management platforms. Audit trail functionality satisfies FDA 21 CFR Part 11 requirements when paired with user-access controls and electronic signature modules. Calibration certificates are provided with NIST-traceable PT100 sensors (Class A tolerance).
Applications
- Accelerated aging of polymer-based enclosures and gasket materials under combined thermal cycling and humidity exposure.
- Functional validation of automotive infotainment systems and ADAS sensors at extreme ambient extremes (-40 °C to +85 °C).
- Reliability screening of telecom base station hardware under sustained high-humidity (up to 98 % RH) and elevated temperature conditions.
- Pre-shipment environmental stress screening (ESS) for defense electronics per MIL-STD-883, Method 1010.
- Stability testing of industrial battery packs during charge/discharge cycles across defined thermal boundaries.
- Validation of HVAC component performance under simulated operational climate envelopes.
FAQ
What temperature and humidity ranges does the AP-HX-2 support?
Standard configuration offers -70 °C to +85 °C temperature range and 30–95 % RH humidity control. High-temperature variants extend to +200 °C or +250 °C (dry-only mode); custom humidity upper limits reach 98 % RH.
Is the chamber suitable for GMP/GLP-regulated environments?
Yes—when equipped with optional audit trail, user role management, and electronic signature modules, it meets 21 CFR Part 11 and EU Annex 11 requirements for data integrity and process validation.
Can the internal dimensions be customized beyond standard offerings?
Absolutely—APKJ provides full non-standard engineering services, including bespoke chamber geometry, reinforced flooring, cable/port penetrations (φ25–φ100 mm), and dual-door configurations with heated observation windows.
What refrigeration method is used, and why is water cooling specified?
A hermetic two-stage cascade refrigeration system ensures stable sub-zero operation; water cooling is required for heat rejection efficiency above 10 kW capacity—air-cooled alternatives are available only for smaller footprint models (<15 m³).
How is temperature and humidity uniformity verified and maintained?
Uniformity is achieved via calibrated multi-point airflow optimization and validated per IEC 60068-3-5 using 9-sensor mapping per IEC 60068-3-6; routine verification follows ISO/IEC 17025-accredited procedures.
