OKEO Mini Environmental Test Chamber for High-Low Temperature Cycling
| Brand | OKEO |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price Reference | USD 3,100 (ex-works, indicative only) |
| Compliance Standards | GB/T 5170.2–1996, GB/T 10592–1993, GB/T 2423.2–2008 (IEC 60068-2-2), GJB 150.3A–2009, GJB 150.4A–2009, GJB 360B–2009 |
Overview
The OKEO Mini Environmental Test Chamber is a compact, precision-engineered high-low temperature cycling system designed for laboratory-scale environmental stress screening of electronic components, materials, and small assemblies. Based on forced-air convection with dual-stage refrigeration and PID-controlled resistive heating, the chamber delivers stable, uniform thermal profiles across its operational range. Its sealed enclosure architecture minimizes thermal leakage and ensures reproducible test conditions—critical for qualification testing under IEC, MIL-STD, and GB-compliant protocols. Unlike large walk-in chambers, this unit prioritizes footprint efficiency without compromising thermal stability (±0.5 °C temperature uniformity, ±0.3 °C control accuracy), making it ideal for QC labs, R&D prototyping, and pre-compliance validation where space and budget are constrained.
Key Features
- Compact footprint (W×D×H: 600 × 600 × 850 mm) with ergonomic curved cabinet design and matte-finish stainless steel exterior for corrosion resistance and cleanroom compatibility.
- High-efficiency hermetic compressor system with low-noise axial fan circulation, achieving sound pressure levels ≤62 dB(A) during operation.
- Integrated anti-vibration base pad and reinforced structural frame to suppress resonance during dynamic thermal cycling (e.g., ramp rates up to 5 °C/min).
- Optional powered test port configuration (up to 4 × Ø25 mm feedthroughs) enabling real-time electrical load monitoring (DC/AC up to 30 V / 5 A) during temperature exposure.
- Double-glazed observation window with Philips LED lighting and embedded anti-fog heater (operational up to 150 °C ambient), ensuring unobstructed visual inspection throughout the full temperature range.
- Comprehensive safety architecture: over-temperature cut-off, compressor high-pressure protection, phase failure detection, door interlock, and ground fault circuit interrupter (GFCI) compliance.
Sample Compatibility & Compliance
The chamber accommodates specimens up to 300 × 300 × 300 mm (W×D×H) with maximum mass loading of 15 kg. Internal chamber volume is 54 L, optimized for rapid thermal response and minimal air stratification. All thermal performance metrics—including temperature uniformity, fluctuation, and recovery time—are verified per GB/T 5170.2–1996 and ISO 16750-4 Annex B. The system meets mandatory requirements for GB/T 2423.2 (high-temperature storage), GB/T 2423.1 (low-temperature storage), GJB 150.3A (military high-temp), and GJB 150.4A (military low-temp). Calibration certificates traceable to NIM (National Institute of Metrology, China) are available upon request; optional third-party verification per ISO/IEC 17025 is supported.
Software & Data Management
Equipped with a 7-inch TFT touchscreen controller running embedded Linux OS, the chamber supports multi-segment programmable profiles (up to 99 cycles, 999 steps), real-time graphing, and USB data export (CSV format). Optional Ethernet/Wi-Fi connectivity enables remote monitoring via Modbus TCP or HTTP API. Data logging intervals are configurable from 1 s to 60 min, with automatic timestamping and user-accessible audit trails. For regulated environments, optional 21 CFR Part 11-compliant firmware (with electronic signature, role-based access control, and immutable log archiving) is available—fully aligned with GLP/GMP documentation workflows.
Applications
This chamber is routinely deployed in: accelerated life testing of PCBAs and semiconductor packages; thermal shock pre-screening of automotive sensors; material coefficient-of-thermal-expansion (CTE) evaluation; validation of adhesive bond integrity under thermal cycling; shelf-life assessment of pharmaceutical packaging; and qualification of battery modules per UN 38.3 thermal abuse protocols. Its compact size and precise control make it especially suited for university laboratories conducting ASTM D696 (CTE), ASTM D5229 (low-temp impact), and IPC-9701 (solder joint reliability) test sequences.
FAQ
What is the standard operating temperature range?
Standard configuration: –40 °C to +150 °C. Extended low-temperature option (–70 °C) available upon request.
Does the chamber support humidity control?
No—this is a dry-heat/cold-only model. Humidity-capable variants (e.g., OKEO-TH series) are offered separately.
Can test data be exported for regulatory submission?
Yes—CSV logs include timestamps, setpoints, chamber readings, alarm events, and operator ID (when authenticated). Optional 21 CFR Part 11 mode adds digital signatures and audit trail export.
Is calibration included with purchase?
A factory calibration report (covering sensor linearity, uniformity, and stability at three points: –40 °C, 25 °C, +150 °C) is provided. On-site ISO/IEC 17025 calibration services are available as an add-on.
What power supply is required?
Single-phase 220 V ±10%, 50/60 Hz, 16 A. A dedicated circuit with surge protection is recommended.
