English Product Name

Overview

The OK-TH-120 Series Large-Scale Temperature and Humidity Controlled Environmental Test Chamber is an engineered solution for industrial validation of large-format components under rigorously defined climatic conditions. Designed in accordance with fundamental principles of psychrometric control and thermodynamic equilibrium, the chamber employs a balanced heating–cooling–humidification–dehumidification architecture to maintain stable, repeatable environmental profiles across volumetric test spaces up to 100 m³. Unlike compact benchtop chambers, this system integrates high-capacity refrigeration circuits, precision steam-based humidification, and multi-zone air distribution to ensure uniform thermal and hygrometric fields—critical for validating automotive ECUs, avionics subassemblies, server racks, and pharmaceutical manufacturing equipment per international environmental stress screening (ESS) protocols.

Key Features

• Modular chamber construction supports custom volume configurations (5–100 m³), enabling scalability for prototype validation through full-batch production testing.
• Dual-stage cascade refrigeration system (optional) achieves −70 °C operational capability while maintaining low-pressure differential across evaporator stages—reducing oil carryover and extending compressor service life.
• Steam-jet humidification with stainless-steel boiler and condensate recovery minimizes mineral deposition and ensures traceable RH control down to 10 %RH without wet-bulb drift.
• YX-880 touchscreen controller features dual-loop PID algorithms with auto-tuning, programmable ramp-soak profiles, and real-time deviation monitoring against setpoints.
• Integrated safety architecture includes Class II residual-current circuit breaker (RCCB), independent overtemperature cut-off (mechanical & electronic), phase-loss protection, and low-water-level interlock on humidifier reservoir.
• Full-view double-glazed observation window with anti-fogging heater permits continuous visual inspection without thermal load disruption or humidity loss.

Sample Compatibility & Compliance

The OK-TH-120 accommodates oversized test articles—including vehicle instrument clusters, telecom base station cabinets, medical imaging systems, and aerospace ground support equipment—without requiring disassembly or dimensional compromise. Its internal airflow design (ducted axial fans + perforated ceiling plenum) ensures <2 °C spatial temperature deviation and ±2.5 %RH humidity variance at steady state, meeting ISO 16750-4 (road vehicles), IEC 60068-2-1/-2/-3/-14, and MIL-STD-810H Method 502.7 (low temperature), 501.7 (high temperature), and 507.6 (humidity). All electrical subsystems comply with CE marking requirements (EN 61000-6-2/6-4), and structural insulation meets ASTM C177 thermal resistance standards. Documentation packages include factory calibration certificates traceable to NIST, IQ/OQ protocols, and optional GMP-compliant audit trails per FDA 21 CFR Part 11.

Software & Data Management

The YX-880 controller supports RS485 Modbus RTU and Ethernet TCP/IP interfaces for integration into centralized lab management systems (LIMS) or MES platforms. Optional data logging firmware enables continuous timestamped recording of all process variables (chamber temp/RH, compressor discharge pressure, humidifier current, fan speed) at user-defined intervals (1 s–60 min). Export formats include CSV and PDF reports with digital signatures, compliant with GLP/GMP data integrity requirements. Remote monitoring via web browser or mobile app allows real-time alarm notification (SMS/email) and historical trend analysis—critical for 24/7 reliability testing campaigns.

Applications

• Automotive: Thermal cycling of ADAS sensor modules, battery management systems (BMS), and infotainment head units per ISO 16750-4 and SAE J2380.
• Aerospace: Pre-flight environmental soak testing of flight control actuators and navigation computers per DO-160G Section 4 (temperature) and Section 5 (humidity).
• Electronics Manufacturing: Burn-in validation of server chassis, power supplies, and 5G radio units under combined high-humidity/high-temperature stress (85 °C/85 %RH).
• Pharmaceutical: Stability chamber qualification for warehouse simulation (ICH Q1A–Q1E), including long-term storage condition mapping (25 °C/60 %RH) and accelerated degradation studies.
• Energy: Grid-scale battery rack thermal runaway propagation testing per UL 9540A and IEEE 1679.2.

FAQ

What chamber volumes are available, and can the unit be configured for non-standard dimensions?

Standard volumetric options range from 5 m³ to 100 m³. Structural engineering drawings and thermal load modeling are performed prior to fabrication to accommodate custom height/width/depth ratios, door configurations (sliding, hinged, or pass-through), and utility penetrations (electrical, pneumatic, data conduit).

Does the system support automated compliance reporting for ISO/IEC 17025 accredited labs?

Yes—when equipped with the optional Audit Trail Module, the controller logs all operator actions (setpoint changes, profile uploads, alarm acknowledgments) with user ID, timestamp, and IP address, satisfying Clause 7.7.1 of ISO/IEC 17025:2017 for result validity assurance.

Is third-party validation support available for IQ/OQ/PQ documentation?

Certified field engineers provide on-site installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ) services—including temperature/humidity mapping per ASTM E2297, with certified thermohygrometer probes and uncertainty budgets.

What maintenance intervals are recommended for the refrigeration and humidification systems?

Compressor oil analysis every 2,000 operating hours; humidifier descaling every 3 months (frequency adjustable based on local water hardness); annual calibration of all Pt100 sensors and humidity transmitters using NIST-traceable reference standards.