Yuelian TS Series Automotive Component Temperature and Humidity Controlled Environmental Test Chamber

Overview

The Yuelian TS Series Automotive Component Temperature and Humidity Controlled Environmental Test Chamber is an engineered solution for accelerated environmental stress testing of automotive parts under rigorously defined thermal and hygrothermal conditions. Designed specifically for Tier 1 suppliers, OEM validation labs, and component manufacturers, this chamber implements precise, repeatable control of temperature (−70 °C to +150 °C) and relative humidity (20–98 % RH, optionally down to 5 % RH) to replicate real-world service environments—including engine bay thermal cycling, under-hood moisture exposure, cabin climate variability, and cold-start condensation scenarios. Its dual-stage refrigeration architecture, coupled with intelligent PID+SSR/SCR bidirectional power modulation and slope-based ramp logic, ensures high reproducibility in transient profile execution—critical for validating thermal expansion coefficients, seal integrity, material embrittlement, and electrochemical corrosion resistance in polymers, composites, elastomers, and coated metal assemblies.

Key Features

• Stainless steel construction (SUS#304 interior and exterior) with high-density polyurethane + rock wool composite insulation for thermal efficiency and long-term corrosion resistance in humid or saline test environments.
• Multi-stage refrigeration system: single-stage air-cooled circuit (R404A) for operation above −40 °C; twin-stage cascade system (R404A/R507) for deep-cold capability down to −70 °C—ensuring stable sub-zero humidity control without ice accumulation on sensors or chamber walls.
• Surface-evaporation humidification system with integrated reverse-osmosis-grade pure water generator; eliminates manual refilling and supports continuous operation with dry-run and overheat safety cutoffs.
• Programmable controller supporting up to 150 multi-step programs (1500 total segments), 9999 × 999 cycle nesting, and five user-defined sub-cycle partitions—enabling complex test sequences aligned with ISO 16750-4 Annex D (temperature/humidity cycling) or GMW15288 (climate durability).
• Triple-layer anti-fog observation window with embedded heating element and high-lumen fluorescent lighting—maintains optical clarity during condensing conditions while enabling real-time visual inspection of sample deformation, leakage, or coating delamination.
• Comprehensive 15-point safety monitoring suite with timestamped fault logging, including compressor overload, refrigerant pressure deviation, heater overtemperature, door interlock failure, and water-level anomalies—fully traceable for GLP/GMP audit compliance.

Sample Compatibility & Compliance

The TS Series accommodates a broad range of automotive components—from ECUs, sensors, and wiring harnesses to HVAC actuators, LED headlamp modules, battery management systems, and ADAS radar housings. Internal dimensions range from 40×50×40 cm (80 L) to 100×100×100 cm (1000 L), with standardized 50 mm-diameter test ports, adjustable stainless steel shelves, and castor-mounted mobility for integration into production-line QA workflows. The chamber meets essential international standards for environmental testing: IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat cyclic), ISO 16750-4 (road vehicle electrical loads), and SAE J2412/J2527 (accelerated weathering). Optional calibration documentation includes NIST-traceable sensor certificates and uncertainty budgets compliant with ISO/IEC 17025 requirements.

Software & Data Management

Equipped with RS-232 and optional RS-485/Ethernet interfaces, the TS Series integrates seamlessly with laboratory information management systems (LIMS) and enterprise quality platforms. The embedded controller logs all setpoints, actual values, alarm events, and operational states at user-configurable intervals (1–60 s), exporting time-stamped CSV files compatible with statistical process control (SPC) software such as Minitab or JMP. For regulated environments, optional firmware enables 21 CFR Part 11-compliant electronic signatures, audit trails with immutable timestamps, and role-based access control—supporting FDA, IATF 16949, and ISO 9001 quality system audits. Remote monitoring via web browser or mobile app (via optional gateway module) allows real-time status verification without physical chamber access.

Applications

• Validation of thermal shock resilience in powertrain control units exposed to rapid under-hood temperature swings.
• Humidity-induced failure analysis of printed circuit board assemblies (PCBAs), including dendritic growth and solder joint fatigue.
• Accelerated aging studies of polymer gaskets, silicone seals, and thermoplastic elastomer (TPE) components per ASTM D573 and ISO 188.
• Cyclic damp-heat testing of lithium-ion battery enclosures to assess ingress protection (IP6K9K) and electrolyte stability.
• Corrosion acceleration of zinc-plated fasteners and aluminum chassis components using combined high-humidity/temperature profiles per VDA 238-100.
• Functional verification of camera lens coatings and display modules under fogging-prone conditions (e.g., 40 °C/95 % RH).

FAQ

What automotive standards does the TS Series support out-of-the-box?
The chamber’s default control algorithms and profile templates align with ISO 16750-4, SAE J2412, GMW15288, and VW 80101—covering thermal cycling, damp heat, and cold storage requirements.
Can the chamber maintain 5 % RH at −40 °C?
Yes—low-humidity configurations include enhanced desiccant-assisted dehumidification and calibrated chilled-mirror hygrometry, validated per ISO 12100 for sub-zero dry environments.
Is remote calibration and preventive maintenance supported?
Field-serviceable sensor modules (Pt100 temperature, capacitive RH) allow on-site recalibration; scheduled maintenance alerts are triggered based on compressor runtime and refrigerant pressure trends.
How is data integrity ensured during power interruption?
Non-volatile memory retains active program state and logged data; UPS-compatible input circuitry sustains controller operation for ≥10 minutes to enable graceful shutdown or resume.
Does the system comply with EU RoHS and REACH directives?
All materials—including insulation foams, gasket elastomers, and refrigerants—are certified RoHS-compliant and REACH SVHC-free, with full declaration documentation available upon request.