Yuelian YL-2290 Walk-in Environmental Test Chamber

Overview

The Yuelian YL-2290 Walk-in Environmental Test Chamber is an industrial-grade, fully configurable walk-in test environment engineered for high-reliability thermal and hygrothermal validation of large-scale components, assemblies, and systems. Designed in accordance with IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat cyclic), and ASTM D4332 (conditioning of plastics), the chamber supports accelerated reliability testing, environmental stress screening (ESS), burn-in validation, and qualification per MIL-STD-810G/H methods. Its modular panel construction enables scalable internal volume—from 2 m³ to 16 m³—while maintaining strict compliance with ISO 17025 traceability requirements for calibration and performance verification. The system employs a dual-stage refrigeration architecture with environmentally compliant refrigerants (R134a, R404A, R23), ensuring stable operation across extended temperature excursions and minimizing thermal lag during rapid transitions.

Key Features

• Modular insulated wall panels (100–150 mm fire-retardant polyurethane foam) with SUS304 stainless steel interior and powder-coated exterior for corrosion resistance and long-term structural integrity
• Horizontal airflow circulation via centrifugal blower system with side-supply/top-return ducting, delivering uniform temperature and humidity distribution (±2.0 °C / ±5 %RH, unloaded)
• TEMI880 programmable controller with 120 programmable profiles (up to 1200 segments, 999 cycles), 0.01 °C resolution, real-time curve display, and password-protected screen lock
• Dual-redundant safety architecture: electronic and mechanical over-temperature cutoffs, low-humidity water cut-off, heater dry-run prevention, compressor high-pressure and overload monitoring, phase failure detection
• Water-cooled condensing system with imported compressors (European or U.S. OEM), optimized for continuous operation under high ambient loads and stable low-temperature performance down to –40 °C
• Integrated servo-controlled humidification system with RO-purified water supply, enabling precise RH control (±2 %RH stability) and reduced mineral deposit accumulation
• Standard RS-232 and optional RS-485/Ethernet interfaces supporting remote supervision, data logging, and integration into centralized lab management platforms (e.g., LabVantage, Siemens Desigo CC)

Sample Compatibility & Compliance

The YL-2290 accommodates oversized test articles—including automotive ECUs, aerospace avionics racks, medical imaging subsystems, battery energy storage modules, and industrial control cabinets—without compromising environmental fidelity. Its open-floor design (standard single door: 85 × 180 cm) permits easy ingress/egress of wheeled carts and palletized loads. All variants meet CE marking requirements for EMC and LVD directives. The chamber’s control algorithm and sensor layout comply with ISO/IEC 17025:2017 Annex A.2 for uncertainty estimation in environmental testing, and its calibration traceability path adheres to NIST or CNAS-accredited standards. Optional configurations support FDA 21 CFR Part 11-compliant audit trails when paired with validated software extensions (e.g., Yuelian DataLogger Pro v3.2).

Software & Data Management

The TEMI880 controller logs timestamped temperature and humidity values at user-defined intervals (1 sec–60 min), storing up to 10,000 data points internally. Raw data exports via USB or serial interface in CSV format for post-processing in MATLAB, JMP, or Minitab. Optional Windows-based recording software provides real-time multi-channel trending, alarm event annotation, and automated report generation (PDF/Excel) compliant with GLP/GMP documentation templates. When integrated with enterprise MES or QMS platforms via Modbus TCP or OPC UA (via RS-485 gateway), the system supports electronic batch records, deviation tracking, and CAPA linkage. Audit trail functionality—including user login/logout timestamps, parameter change history, and alarm acknowledgment logs—is available under validated configuration for regulated environments.

Applications

• Environmental Stress Screening (ESS) of electronic assemblies per Telcordia SR-332 and JEDEC JESD22-A108
• Thermal cycling qualification of EV battery packs (UN38.3, GB/T 31467.3)
• Humidity soak and damp heat testing of photovoltaic modules (IEC 61215-2 MQT10)
• Storage condition simulation for pharmaceutical secondary packaging (ICH Q1A–Q1E)
• Pre-conditioning of composite materials prior to mechanical testing (ASTM D5229/D5229M)
• Validation of HVAC system components under extreme ambient exposure (ASHRAE 110)
• Long-duration burn-in of industrial IoT gateways and edge servers (MIL-HDBK-344)

FAQ

What is the maximum internal volume available for the YL-2290 series?
The standard configuration offers internal volumes from 2.0 m³ (200 × 200 × 200 cm) up to 16.0 m³ (400 × 200 × 200 cm); custom dimensions beyond these limits are supported upon engineering review.
Does the chamber support GMP/GLP-compliant data integrity?
Yes—when equipped with the optional DataLogger Pro v3.2 software and configured with role-based access control, electronic signatures, and immutable audit trails, it meets ALCOA+ principles and 21 CFR Part 11 requirements.
Can the system operate continuously at –40 °C with 95 %RH?
No—simultaneous extreme low-temperature and high-humidity operation is physically constrained by dew point limitations; the specified humidity range applies within the operational temperature envelope (e.g., 30–95 %RH at +20 to +80 °C; 30–70 %RH at –10 to +20 °C).
Is field calibration and preventive maintenance supported globally?
Yuelian provides factory-certified calibration certificates (NIST-traceable PT100 sensors) and annual PM kits; authorized service partners operate across APAC, EMEA, and North America with 72-hour response SLAs for critical failures.
What electrical infrastructure is required for the largest YL-2290-B4 variant?
The YL-2290-B4 (300 × 200 × 200 cm internal) requires a dedicated 380 VAC, 3-phase, 55 A circuit with grounded neutral, water cooling supply (≥3.5 bar, 15 °C inlet), and adequate ventilation for condenser heat rejection.