English Product Name

Overview

The Cabinet-Style Temperature and Humidity Controlled Environmental Test Chamber is an engineered solution for precise, repeatable simulation of climatic conditions in laboratory and industrial quality assurance environments. Designed according to the fundamental principles of thermodynamic equilibrium and psychrometric control, this chamber maintains stable setpoints across wide operational ranges by integrating high-efficiency refrigeration cycles, PID-controlled heating elements, and a precision humidity generation system based on steam injection and solid-state desiccant drying. Its cabinet architecture provides structural rigidity and thermal mass stability—critical for minimizing transient overshoot during rapid temperature transitions and ensuring compliance with standardized environmental stress profiles. The chamber supports both steady-state and cyclic testing protocols, making it suitable for reliability validation, accelerated aging studies, and pre-compliance screening prior to formal certification testing.

Key Features

• 7-inch full-color LCD touchscreen controller with intuitive menu navigation, real-time trend graphing, and seamless English/Chinese language switching—designed for operator efficiency and multilingual lab environments.
• Dual-stage hermetic compressors sourced from European and North American manufacturers, operating on environmentally compliant refrigerants (R404A for medium-low temperature stages; R23 for ultra-low sub-zero operation), delivering low acoustic emission (<65 dB(A)) and extended service life under continuous duty.
• Double-gasketed door seal system using high-tensile silicone rubber rated to 200 °C, ensuring long-term integrity and leakage rates <0.5 L/min at 25 °C/50 %RH—critical for maintaining humidity stability during prolonged wet-bulb conditioning.
• Chamber construction from electropolished SUS#304 stainless steel (1.2 mm thickness, both interior and exterior), offering superior corrosion resistance, non-outgassing performance, and compatibility with ISO Class 5 cleanroom maintenance protocols.
• Multi-layer insulated viewing window composed of three panes of tempered glass with embedded conductive ITO film—enabling unobstructed visual monitoring while preventing condensation and electrostatic interference with sensitive instrumentation inside the chamber.
• Integrated safety architecture including independent over-temperature cut-off, humidity sensor failure detection, compressor high-pressure shutdown, and real-time alarm logging with timestamped event history—fully aligned with IEC 61000-6-2/6-4 EMC immunity requirements.

Sample Compatibility & Compliance

This chamber accommodates a broad spectrum of sample geometries and material classes—including printed circuit boards (PCBs), automotive electronic control units (ECUs), polymer housings, medical device packaging, and aerospace composite specimens—via configurable internal dimensions (from 80 L to 1000 L working volume) and optional stainless-steel adjustable shelves. It meets or exceeds the technical and procedural requirements of multiple international standards: MIL-STD-810G Method 502.6 (low temperature), Method 501.6 (high temperature), and Method 507.6 (humidity); GB/T 2423.1–2008, GB/T 2423.2–2008, GB/T 2423.3–2016, and GB/T 2423.4–2008; IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), and IEC 60068-2-30 (cyclic damp heat); as well as GJB 150.3, GJB 150.4, and GJB 150.9 military environmental test specifications. All units undergo factory calibration traceable to NIST-certified reference standards, with optional UKAS-accredited calibration documentation available upon request.

Software & Data Management

The embedded controller supports local data logging (up to 10,000 records with time/date stamping), USB export of CSV-formatted test logs, and real-time RS485/Modbus RTU communication for integration into centralized MES or SCADA platforms. Optional PC-based software (Windows 10/11 compatible) enables remote monitoring, multi-chamber synchronization, automated report generation (PDF/Excel), and audit-trail functionality compliant with FDA 21 CFR Part 11 requirements—including electronic signatures, user access levels, and immutable change history. Data encryption (AES-128) and secure firmware update mechanisms are implemented to support GLP/GMP-regulated workflows.

Applications

Typical use cases include: thermal cycling validation of battery management systems (BMS) per UN38.3 Section 4.4; humidity-induced corrosion testing of metallic contacts per IPC-J-STD-006; shelf-life prediction of pharmaceutical primary packaging under ICH Q1A(R3) stability conditions; qualification of avionics enclosures per DO-160G Section 4 and 5; and verification of IP67 ingress protection rating via combined temperature-humidity-soak sequences. The chamber is routinely deployed in QC laboratories of Tier-1 automotive suppliers, contract manufacturing organizations (CMOs), and ISO/IEC 17025-accredited test houses.

FAQ

What is the maximum allowable load weight per shelf?

Each standard stainless-steel shelf is rated for 25 kg uniformly distributed load; custom reinforced shelving options support up to 50 kg per level.

Can the chamber operate continuously at -70 °C and 98 %RH simultaneously?

No—extreme low-temperature operation below -40 °C restricts humidity range to ≤20 %RH due to physical limitations of water vapor saturation pressure; full-range humidity is available only above -20 °C.

Is third-party calibration certification included with purchase?

Factory calibration is provided with a traceable certificate; ISO/IEC 17025-accredited calibration with uncertainty budget is available as a value-added service.

What power supply configuration is required for the 1000 L model?

The OK-TH-1000 requires a dedicated 3-phase 380 V ±5 %, 50 Hz ±0.5 Hz supply with minimum 32 A circuit breaker and proper grounding per IEC 60364-5-54.

Are custom modifications such as additional ports or internal lighting supported?

Yes—custom engineering services include extra Ø30–100 mm feedthroughs, explosion-proof LED lighting, nitrogen purge interfaces, and DIN-rail mounting brackets for auxiliary instrumentation.