English Product Name
| Brand | OKEO |
|---|---|
| Origin | China |
| Manufacturer Type | Authorized Distributor |
| Category | Domestic Production (Not Imported) |
| Price | USD 2,650 (Reference Only – Final Quotation Subject to Configuration & Compliance Requirements) |
Overview
The OKEO Environmental Test Chamber is a precision-engineered temperature and humidity controlled chamber designed for reliable, repeatable environmental simulation in R&D laboratories, quality assurance departments, and production validation facilities. It operates on the principle of balanced temperature and humidity control (BTHC), utilizing proportional-integral-derivative (PID) algorithms to dynamically regulate heating, refrigeration, humidification, and dehumidification subsystems. This ensures thermal and hygric equilibrium within the test space—where heat/moisture input precisely offsets chamber losses—enabling long-duration stability essential for accelerated aging, reliability screening, and climatic stress testing. The chamber conforms to core international environmental test standards while meeting domestic regulatory expectations for industrial equipment traceability and operational safety.
Key Features
- Robust dual-protection architecture: independent overtemperature cutoff, dry-run protection for steam humidifiers, low-water-level interlock, compressor overload/overheat/overcurrent monitoring, high-pressure refrigerant switch, molded-case circuit breaker, and residual-current device (RCD) for personnel safety.
- Optimized thermal-hygric response: full-capillary tube expansion system with automatic load capacity modulation—superior to traditional thermostatic expansion valves in stability, hysteresis reduction, and transient response during rapid ramping.
- Human-centered ergonomics: seamless arc-shaped stainless steel enclosure with non-reactive flat-panel handles; intuitive 7-inch capacitive touchscreen controller supporting multi-step program editing, real-time trend logging, and dual-language UI (English/Chinese).
- Stable BTHC control logic: SSR-driven PID regulation maintains ±0.5 °C temperature uniformity and ±2.0 % RH accuracy (at 25 °C / 60 % RH, no-load, ambient 25 ±6 °C) across the working volume.
- Customizable footprint: external dimensions exclude protruding components (e.g., condensate drain, service ports); internal chamber volume and door configuration can be tailored per ISO/IEC 17025-compliant validation requirements.
Sample Compatibility & Compliance
The chamber accommodates diverse sample types—including electronic assemblies, polymer components, pharmaceutical packaging, and coated metal substrates—without compromising parameter fidelity. Its design supports static and dynamic load conditions per MIL-STD-2164A and GJB 1032-90 environmental stress screening (ESS) protocols. All units are factory-calibrated against NIST-traceable references and comply with GB/T 2423.1–2023 (cold test), GB/T 2423.2–2023 (dry heat), IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), and GJB 234-1997 (quantitative ESS). Electrical safety meets GB 4793.1–2019 (IEC 61010-1), and EMC performance satisfies GB/T 18268.1–2010 (IEC 61326-1).
Software & Data Management
Embedded firmware enables audit-ready data integrity: all setpoints, actual values, alarm events, and operator actions are timestamped and stored internally for ≥30 days. Optional Ethernet or RS485 interface supports Modbus TCP/RTU for integration into LabVantage, TrackWise, or custom MES platforms. Data export complies with FDA 21 CFR Part 11 requirements when paired with optional user authentication module and electronic signature workflow—supporting GLP/GMP-aligned validation documentation (IQ/OQ/PQ reports available upon request).
Applications
- Environmental stress screening (ESS) of PCBAs and avionics modules per MIL-STD-2164A
- Accelerated corrosion testing of automotive trim under cyclic humidity/temperature profiles
- Stability assessment of medical device packaging per ISO 11607-1
- Material hygroscopic expansion coefficient determination in polymer R&D
- Validation of HVAC component performance under extreme humidity conditions (up to 98 % RH at 85 °C)
- Long-term storage condition simulation for battery cell qualification
FAQ
What is the meaning of “air average temperature change rate” in the specifications?
This refers to the mean ramp rate calculated over the entire air volume—not the surface or core temperature of the test specimen. Actual sample thermal response depends on mass, thermal conductivity, and mounting configuration.
Does the chamber require chilled water supply?
Yes. For optimal cooling performance below 0 °C, a continuous supply of clean water at 10–28 °C and 0.1–0.3 MPa pressure is mandatory. Integrated water-cooled condenser design eliminates dependency on ambient air exchange.
Can this chamber be validated per ISO/IEC 17025 requirements?
Yes. OKEO provides UKAS-accredited calibration certificates for temperature and humidity sensors, along with uncertainty budgets. Full validation support—including mapping protocols, alarm verification, and recovery time testing—is available through certified field engineers.
Is remote monitoring supported out-of-the-box?
Standard configuration includes local touchscreen and USB data export. Remote access requires optional Ethernet module and secure VPN configuration—compatible with common SCADA and IIoT edge gateways.
How does the capillary tube system improve reliability versus expansion valve designs?
Capillary tubes eliminate moving parts and refrigerant charge sensitivity. Combined with adaptive load compensation logic, they reduce refrigerant migration during off-cycles and minimize superheat fluctuations—resulting in tighter humidity control and extended compressor service life.
