Walk-in Environmental Chamber – OK-STH Series by Other Brands
| Key | Brand: Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 12,500 (FOB) |
| Temperature Range | 0°C to 150°C |
| Humidity Range | 20–98% RH (at 25–80°C) |
| Temperature Uniformity | ±2°C (unloaded) |
| Temperature Fluctuation | ±0.5°C (unloaded) |
| Heating Rate | 1.0–3.0°C/min |
| Cooling Rate | 0.7–1.0°C/min |
| Humidity Deviation | +2 / −3% RH |
| Timer Range | 1–9999 hours |
| Chamber Models | OK-STH-100 (45×45×50 cm), OK-STH-225 (50×60×75 cm), OK-STH-500 (80×70×90 cm), OK-STH-800 (80×100×100 cm), OK-STH-1000 (100×100×100 cm) |
Overview
The OK-STH Series Walk-in Environmental Chamber is an engineered thermal and humidity conditioning system designed for long-duration reliability testing, burn-in validation, and accelerated aging of electronic components, telecom modules, automotive ECUs, and industrial control units. Operating on a forced-air convection principle with dual-zone air handling—comprising a recirculating heating/cooling loop and a dedicated overheat exhaust subsystem—the chamber maintains precise, stable environmental conditions across large internal volumes. Its structural architecture integrates double-skinned color-coated steel panels with high-density polyurethane insulation (typically ≥100 mm thickness), ensuring low thermal bridging and consistent thermal inertia. The system supports both static and dynamic environmental profiling, enabling users to replicate real-world operational stresses—including thermal cycling, dwell-time exposure, and combined temperature-humidity stressors—in accordance with IEC 60068-2, JEDEC JESD22-A108, and MIL-STD-810H test methodologies.
Key Features
- Modular walk-in construction with field-assembled insulated panels; customizable interior dimensions up to 100×100×100 cm (OK-STH-1000)
- Dual-stage PID-controlled temperature regulation with six-point independent sensor monitoring and real-time rolling display
- Integrated humidity control via steam generator and dehumidification coil, calibrated for operation between 20–98% RH within 25–80°C ambient envelope
- Redundant safety architecture including overtemperature cut-off, airflow failure detection, smoke sensing, and fan fault interlock
- Non-intrusive ceiling-mounted HVAC module—preserving floor space and simplifying cable routing for DUTs
- Optional viewing window(s) with double-glazed tempered glass and anti-fog coating for continuous visual inspection
- Multi-voltage AC outlets (110 V / 220 V / 380 V) pre-installed on interior walls per customer specification
Sample Compatibility & Compliance
The OK-STH chamber accommodates full-rack servers, PCB assemblies, battery packs, power supplies, and embedded systems mounted on user-supplied or OEM-designed test racks. Structural load capacity exceeds 150 kg/m² across all floor configurations. All electrical components comply with CE marking requirements under the Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU). Temperature and humidity performance validation follows ISO/IEC 17025-accredited procedures where third-party calibration is applied. The system supports audit readiness for ISO 9001, IATF 16949, and IPC-A-610 manufacturing quality systems. Optional data logging modules provide traceable records compliant with FDA 21 CFR Part 11 when paired with validated software environments.
Software & Data Management
While the base configuration employs a PLC-based HMI interface with local parameter programming, optional Ethernet-enabled controllers support Modbus TCP and OPC UA protocols for integration into centralized MES or SCADA platforms. Real-time temperature/humidity profiles can be exported in CSV or XML format; timestamped event logs capture alarm triggers, setpoint changes, and sensor deviations. Audit trail functionality—including user login history, parameter modification timestamps, and firmware version tracking—is available upon activation of the enhanced security license. Data integrity safeguards include cyclic redundancy checks (CRC), write-protected memory partitions, and automatic backup to external USB storage at configurable intervals.
Applications
- Burn-in testing of semiconductor devices and logic boards under sustained elevated temperature (e.g., 85°C/85% RH for 168 h)
- Thermal endurance validation of lithium-ion battery modules across charge/discharge cycles
- Environmental stress screening (ESS) of avionics subassemblies prior to flight qualification
- Long-term stability assessment of optical sensors and MEMS accelerometers
- Accelerated life testing (ALT) of conformally coated circuit cards exposed to cyclic humidity ingress
- Pre-compliance verification for EN 60068-2-30 (damp heat, cyclic) and ASTM D4332 (conditioning of plastics)
FAQ
What is the standard warranty coverage for the OK-STH series?
Standard warranty includes 12 months parts-and-labor coverage from commissioning date, extendable to 36 months under service agreement.
Can the chamber operate continuously for 30 days without intervention?
Yes—designed for unattended 24/7 operation with fail-safe shutdown protocols and remote monitoring compatibility.
Is external cooling water required for the refrigeration system?
No—air-cooled condensing units are standard; chilled water option available upon request for high-ambient installations.
How is temperature uniformity verified during factory acceptance testing?
Performed using nine NIST-traceable PT100 probes per IEC 60068-3-5, with results documented in the FAT report.
Are custom test rack designs supported?
Yes—mechanical drawings and load specifications provided by the client enable OEM-grade rack fabrication with integrated power/data pass-throughs.
