Yuelian TS-800 Temperature and Humidity Controlled Environmental Test Chamber

Overview

The Yuelian TS-800 Temperature and Humidity Controlled Environmental Test Chamber is an engineered platform for precise, repeatable simulation of climatic stress conditions across industrial R&D, quality assurance, and regulatory validation workflows. It operates on the principle of forced-air convection combined with dual-stage refrigeration and surface-evaporation humidification to maintain tightly controlled thermal and hygric environments. The chamber supports full-cycle environmental profiling—from extreme cold (-70 °C) to high-temperature bake (+150 °C), and from low-humidity desiccation (as low as 5 % RH, optional) to saturated condensation (98 % RH)—enabling accelerated aging, reliability screening, and compliance verification per international environmental testing standards.

Key Features

• Robust twin-stage hermetic refrigeration system using environmentally compliant R404A/R507 refrigerants, optimized for rapid cooling below −40 °C with minimized oil carryover and enhanced thermal recovery.
• Intelligent PID-based control architecture with bidirectional SSR/SCR output and embedded slope logic—enabling smooth ramp-and-soak transitions, programmable dwell times, and dynamic setpoint adaptation without overshoot or oscillation.
• 150-program × 1500-segment controller supporting nested loop structures, conditional branching, and up to 9999 × 999 cycle repetition—ideal for complex automotive ECU validation, aerospace component qualification, or medical device shelf-life studies.
• Self-contained water generation module eliminates manual refilling; integrates conductivity monitoring, low-water cutoff, and overheat protection for continuous unattended operation.
• Double-glazed, anti-fog observation window with integrated heating element and high-luminance LED illumination ensures optical clarity during prolonged high-humidity exposure without condensation interference.
• Full-spectrum safety architecture including 15-point real-time diagnostics: compressor overload, refrigerant pressure anomalies, heater failure, door interlock breach, temperature/humidity sensor drift, and power anomaly detection—with timestamped fault logs and actionable remediation guidance.

Sample Compatibility & Compliance

The TS-800 accommodates heterogeneous sample configurations—including PCB assemblies, polymer enclosures, lithium-ion battery modules, pharmaceutical packaging, and composite structural components—via its 800 L internal volume (100 × 100 × 80 cm), reinforced stainless-steel interior, and two adjustable load-bearing shelves. Its thermal uniformity (±0.5 °C) and humidity uniformity (±3 % RH) meet IEC 60068-3-5 and ISO 16750-4 spatial tolerance requirements for climatic testing. The system is configured to support GLP-compliant audit trails when integrated with validated data acquisition software, and its control firmware adheres to functional safety principles aligned with IEC 61508 SIL-2 for critical environmental conditioning tasks.

Software & Data Management

Standard RS-232 serial interface enables direct integration with LabVIEW, MATLAB, or custom SCADA platforms for remote parameter upload, real-time telemetry streaming, and automated report generation. Optional Ethernet or RS-485 expansion supports centralized multi-chamber fleet management. All program edits, runtime events, alarm triggers, and sensor readings are time-stamped and stored onboard with non-volatile memory retention exceeding 30 days. When paired with Yuelian’s optional validation package, the system delivers 21 CFR Part 11–compliant electronic records—including user authentication, audit trail immutability, and electronic signature capability—for regulated industries such as medical device manufacturing and pharmaceutical stability testing.

Applications

• Electronics: Thermal cycling of automotive ECUs per ISO 16750-4; moisture resistance validation of conformal-coated PCBs under 85 °C/85 % RH conditions.
• Aerospace: Composite material outgassing and dimensional stability assessment under −55 °C to +125 °C profiles per SAE AS4790.
• Medical Devices: Accelerated aging of sterile barrier systems per ISO 11607-1; shelf-life prediction of diagnostic reagents using Arrhenius-based humidity-accelerated models.
• Automotive: Climate endurance testing of infotainment displays, battery thermal management housings, and ADAS sensor housings per GMW14872 and Ford CETP.
• Materials Science: Hygrothermal degradation kinetics of thermoplastics, adhesives, and fiber-reinforced polymers under controlled ΔT/ΔRH gradients.

FAQ

What is the standard temperature and humidity uniformity specification for the TS-800?

The chamber maintains ±0.5 °C temperature uniformity and ±3 % RH humidity uniformity across the working volume at steady-state conditions, verified per IEC 60068-3-5 methodology.
Can the TS-800 be validated for GMP or ISO 17025 compliance?

Yes—when equipped with the optional IQ/OQ/PQ documentation package and integrated with traceable NIST-calibrated sensors, the system supports full metrological validation for accredited laboratories.
Is low-humidity operation down to 5 % RH available as a factory option?

Yes—this requires integration of a dedicated desiccant-assisted dehumidification module and modified control logic, specified at time of order.
What refrigerant types are used, and are they compliant with current F-Gas regulations?

The system uses R404A (for single-stage operation) and R507 (for dual-stage sub-zero operation), both classified as HFCs with phasedown schedules under EU Regulation 517/2014; alternative natural refrigerant retrofits (e.g., R290) are available upon request.
Does the controller support MODBUS RTU or TCP/IP communication protocols?

Standard RS-232 supports ASCII command sets; MODBUS RTU is available via optional RS-485 expansion card, and TCP/IP integration is supported through third-party gateway solutions compatible with the chamber’s serial API.