OK-TS Series Thermal Shock Test Chamber
| Brand | OK Instruments |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| High-Temperature Range | +150 °C (standard), up to +200 °C (optional) |
| Low-Temperature Range | –10 °C to –40 °C (Type A), –55 °C (Type B), –65 °C (Type C), –80 °C (Type D, optional) |
| Temperature Transition Time | ≤95 min (RT → –75 °C) |
| Basket Recovery Time | ≤10 s |
| Temperature Uniformity | ±2.0 °C |
| Temperature Fluctuation | ±0.5 °C |
| Basket Dimensions (W×D×H) | 400×350×350 mm to 700×600×600 mm |
| External Dimensions | 1350×1800×1350 mm to 1600×2100×1650 mm |
| Drive Mechanism | Pneumatic or mechanical basket transfer |
| Inner Chamber Material | 1.2 mm SUS#304 stainless steel |
| Outer Chamber | 1.5 mm galvanized steel with powder coating or SUS#304 option |
| Insulation | Dual-layer — rigid polyurethane foam + fiberglass |
| Heating System | Helical Ni-Cr alloy heaters with ceramic insulation |
| Communication Interfaces | RS-232, RS-485, USB, Ethernet (LAN) |
Overview
The OK-TS Series Thermal Shock Test Chamber is an engineered environmental stress screening (ESS) system designed for rapid, repeatable thermal cycling between extreme high- and low-temperature zones. Based on the two-chamber (hot/cold) static immersion principle with pneumatically or mechanically actuated basket transfer, it subjects test specimens to abrupt temperature transitions—simulating real-world thermal fatigue conditions encountered in aerospace, automotive electronics, semiconductor packaging, and military-grade component qualification. Unlike single-chamber ramp-based systems, this dual-zone architecture ensures minimal thermal inertia, enabling precise control over dwell time, transition rate, and recovery stability—critical for evaluating solder joint integrity, material delamination, seal failure, and interfacial adhesion under accelerated aging protocols.
Key Features
- 3D parametric modeling and pre-manufacturing virtual assembly validation ensure mechanical integrity, thermal path optimization, and zero design-related functional gaps.
- Standard liquid nitrogen (LN₂) interface provision enables future field upgrade to ultra-low temperature operation below –65 °C without structural modification.
- Intelligent energy management system dynamically modulates compressor output based on real-time thermal load—reducing power consumption by up to 30% versus conventional heater-balanced thermal shock systems.
- Critical subsystems—including compressors, circulation fans, and drive actuators—are sourced from globally certified suppliers meeting ISO 9001-compliant precision and acoustic noise specifications (≤62 dB(A) at 1 m).
- Multi-protocol digital connectivity supports integration into centralized lab monitoring networks: RS-232/485 for legacy SCADA, USB for local data dump, and Ethernet (TCP/IP) for remote supervision, alarm logging, and audit-trail-enabled operation.
Sample Compatibility & Compliance
The OK-TS chamber accommodates a broad range of sample geometries—from PCB assemblies and IC packages to automotive ECUs, LED modules, and medical device housings—within standardized basket configurations (400–700 mm internal width). Its performance and test methodology conform to major international environmental testing standards, including IEC 60068-2-14 (Test N: Change of Temperature), MIL-STD-810H Method 503.5, GJB 150.5A-2009 (Military Standard for Temperature Shock), GB/T 2423.22–2012 (Temperature Change Testing), and ASTM D5229/D5229M (Low-Temperature Impact Resistance of Composites). The chamber’s ±0.5 °C temperature fluctuation and ±2.0 °C uniformity meet GLP/GMP-relevant instrumentation qualification requirements when operated within validated operational ranges.
Software & Data Management
Equipped with embedded controller firmware supporting configurable test profiles (up to 99 segments per cycle), programmable dwell times (1 min to 999 h), and user-defined transition sequences, the system records timestamped temperature traces at 1-second resolution. Data export complies with ASTM E2918-21 for electronic record retention and supports CSV, Excel, and PDF report generation. Optional software modules provide FDA 21 CFR Part 11-compliant user access control, electronic signatures, and full audit trail functionality—including operator ID, parameter changes, calibration events, and alarm history—with encrypted local storage and network backup capability.
Applications
This thermal shock chamber is routinely deployed in R&D laboratories and QC departments for accelerated reliability assessment of: printed circuit board assemblies (PCBAs) subjected to reflow soldering stress; MEMS sensors exposed to ambient thermal gradients; battery modules undergoing thermal runaway initiation studies; optical enclosures requiring hermetic seal validation; and polymer-based connectors evaluated for coefficient-of-thermal-expansion (CTE) mismatch failure. Its reproducible thermal transients support failure mode analysis (FMEA), HALT/HASS protocol development, and qualification testing per IPC-9701A, JEDEC JESD22-A104, and AEC-Q200 stress categories.
FAQ
What temperature ranges are available for the OK-TS series?
Standard configurations offer –40 °C to +150 °C; optional variants extend to –80 °C (with LN₂ assist) and +200 °C (high-temp chamber lining).
Is the chamber compliant with MIL-STD-810 or IEC 60068 standards?
Yes—its thermal transition rates, dwell stability, and chamber uniformity satisfy IEC 60068-2-14 Test N and MIL-STD-810H Method 503.5 when operated per specified loading and calibration procedures.
Can the system be integrated into an existing LIMS or MES platform?
Via Ethernet (Modbus TCP) or RS-485 (Modbus RTU), the chamber supports bi-directional communication for automated job dispatch, real-time status polling, and event-triggered data push.
What maintenance intervals are recommended for long-term reliability?
Compressor oil and filter replacement every 12 months; refrigerant leak check and chamber door gasket inspection every 6 months; annual NIST-traceable temperature sensor calibration.
Does the chamber support custom basket configurations for non-standard samples?
Yes—custom stainless-steel baskets with adjustable fixtures and thermal mass compensation can be fabricated per customer drawings and validated per ISO/IEC 17025 guidelines.
