OKE High-Low Temperature Environmental Test Chamber
| Brand | OKE Instruments |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price Reference | USD 3,100 (indicative only |
Overview
The OKE High-Low Temperature Environmental Test Chamber is a precision-engineered climatic simulation system designed for rigorous thermal stress testing of electronic components, automotive parts, aerospace materials, and industrial assemblies. It operates on the principle of forced-air convection with dual-stage refrigeration and PID-controlled electric heating, enabling stable and reproducible temperature profiles across a wide operational range (typically –70 °C to +180 °C, configurable per model). The chamber’s thermally insulated double-wall construction—filled with high-density polyurethane foam—and hermetically sealed door gasket minimize thermal leakage and ensure uniform internal temperature distribution (±0.5 °C at setpoint, per IEC 60068-3-5). Its architecture complies with fundamental design criteria for environmental test equipment as defined in IEC 60068-3-5, ISO 16750-4, and MIL-STD-810G Method 501.5/502.5, supporting both qualification and reliability screening protocols under controlled laboratory or production QA environments.
Key Features
- Smooth, arc-shaped exterior housing with matte-finish stainless steel cladding and ergonomic, non-reactive flat handles for safe, vibration-free access
- Hermetically sealed chamber body with reinforced structural frame and low-noise, high-torque axial circulation motor (≤62 dB[A] at 1 m)
- Integrated anti-vibration mounting pads compliant with ISO 10816-1 for operation on standard laboratory floors without dedicated foundations
- Load-testing capability: 220 V AC / 30 A power feed-through terminals (IP65-rated) enabling real-time functional evaluation of powered devices under thermal stress
- Double-glazed observation window with Philips LED interior lighting and embedded resistive defogging elements (operating up to 150 °C), ensuring unobstructed visual monitoring during high-humidity or extreme-temperature cycles
- Comprehensive safety redundancy: over-temperature cut-off, compressor high-pressure protection, phase failure detection, door interlock, and ground fault circuit interruption (GFCI)
Sample Compatibility & Compliance
The chamber accommodates samples up to 600 mm × 600 mm × 600 mm (W×D×H) with optional internal shelf configurations. It supports DUTs with active thermal dissipation (up to 300 W continuous load) and maintains thermal stability per ASTM E145–22 Class II accuracy requirements. Calibration traceability follows ISO/IEC 17025-accredited procedures using NIST-traceable platinum resistance thermometers (PRTs). Regulatory alignment includes: GB/T 5170.2–2017 (Temperature Test Equipment), GB/T 10589–2008 (Low-Temperature Test Chambers), GB/T 10592–2008 (Specifications for High/Low-Temperature Chambers), IEC 60068-2-1 (Cold Tests), IEC 60068-2-2 (Dry Heat), MIL-STD-810G Methods 501.5 & 502.5, and GJB 150.3A–2009 / GJB 150.4A–2009. All units undergo factory verification per ISO 17025-based validation protocols prior to shipment.
Software & Data Management
Equipped with a 7-inch TFT touchscreen HMI running embedded Linux OS, the controller supports multi-segment ramp-soak profiles (up to 99 cycles, 999 steps), real-time data logging (1 Hz sampling), and USB export of CSV-formatted temperature/time datasets. Optional Ethernet interface enables integration into centralized lab management systems (LIMS) and supports audit-trail functionality compliant with FDA 21 CFR Part 11 when paired with OKE’s validated PC software suite (v3.2+). Data integrity safeguards include password-protected parameter editing, electronic signature capture, and immutable event logs (power loss, alarm activation, setpoint changes).
Applications
This chamber is routinely deployed for: accelerated life testing of PCBAs and semiconductor packages; thermal cycling validation of EV battery modules per UN ECE R100 and ISO 16750-4; pre-compliance screening of medical device enclosures (IEC 60601-1); material coefficient-of-thermal-expansion (CTE) characterization; and environmental stress screening (ESS) of avionics per DO-160 Section 4. It is also used in academic research for polymer crystallinity studies, elastomer hysteresis analysis, and solder joint fatigue modeling under thermal gradient loading.
FAQ
What temperature range does this chamber support?
Standard configuration covers –70 °C to +180 °C; extended ranges (e.g., –80 °C or +200 °C) are available upon request with modified refrigerant and heater specifications.
Is the chamber suitable for humidity-controlled testing?
No—this is a dry-temperature-only chamber. For combined temperature/humidity testing, refer to OKE’s TH Series Environmental Test Chambers.
Can I integrate third-party sensors or DAQ systems?
Yes—RS-485 Modbus RTU and analog 4–20 mA output ports are provided for external monitoring and control loop interfacing.
Does the unit include calibration documentation?
Each chamber ships with a Factory Calibration Certificate (traceable to NIM, China) and a full IQ/OQ protocol package for GMP/GLP environments.
What is the typical lead time after order confirmation?
Standard models: 6–8 weeks ex-works; custom configurations require engineering review and may extend to 12 weeks.
