English Product Name

Overview

The KS-TH Series Custom High-Speed Thermal Cycling Chamber is an engineered environmental test system designed for accelerated reliability validation of electronic components, automotive modules, aerospace subsystems, and precision instrumentation under dynamically varying thermal stress conditions. Based on the principle of forced-air convection combined with high-efficiency cascade refrigeration and precision PID-controlled heating, the chamber delivers programmable linear or non-linear thermal transients across a wide operational envelope. Its core architecture supports rapid temperature transitions—up to 30 °C per minute—within the −45 °C to +85 °C range, while maintaining full operational capability from −70 °C to +150 °C. The system complies with fundamental requirements of IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), and IEC 60068-2-14 (change of temperature), and is configurable for alignment with MIL-STD-810H Method 503.5 and JEDEC JESD22-A104F test profiles. Humidity control (20–98% RH, optional) extends applicability to combined environmental stress screening (CESS) protocols.

Key Features

• High-performance dual-stage or single-stage cascade refrigeration system using hermetically sealed compressors (Tecumseh or Bitzer), enabling stable low-temperature operation down to −70 °C and rapid pull-down capability.
• Forced-air circulation via extended-shaft, high-torque stainless-steel multi-blade impellers driven by high-temperature-rated motors—ensuring uniform airflow distribution and minimizing thermal gradients (< ±2.0 °C).
• Multi-layer heated viewing window with conductive film prevents condensation and frosting during low-temperature or high-humidity operation, supporting real-time visual monitoring without compromising chamber integrity.
• Structural insulation composed of high-density polyurethane (PU) foam and glass fiber matting achieves thermal resistance values exceeding R-25 (imperial) / RSI-4.4 (metric), minimizing energy loss and stabilizing chamber dynamics during rapid ramping.
• Modular internal volume options (150 L to 1000 L) with SUS304 stainless-steel interior surfaces ensure corrosion resistance, cleanability, and long-term dimensional stability under repeated thermal cycling.
• Integrated safety architecture includes high/low refrigerant pressure switches, compressor overload protection, over-temperature/over-humidity cutouts, water flow interlock (for water-cooled variants), and audible/visual fault indication per IEC 61000-6-2 EMC compliance.

Sample Compatibility & Compliance

The KS-TH series accommodates a broad range of test specimens—from PCB assemblies and battery packs to medical device housings and sensor modules—via its standardized Ø50 mm access port (left-side mounted) and optional inner door with observation window. All models meet CE marking requirements for electromagnetic compatibility (EN 61000-6-3/6-4) and low-voltage directive (2014/35/EU). When equipped with humidity control, systems support ISO 17025-accredited laboratories in generating auditable test records aligned with GLP and GMP frameworks. Optional data logging interfaces and alarm relay outputs facilitate integration into centralized facility monitoring systems compliant with FDA 21 CFR Part 11 when paired with validated software packages.

Software & Data Management

Standard controller firmware supports programmable multi-segment thermal profiles with user-defined ramp rates, dwell times, and transition modes (linear/non-linear). Optional Ethernet or RS485 communication enables remote monitoring and control via SCADA-compatible protocols (Modbus RTU/TCP). With add-on data acquisition modules, users can export timestamped temperature/humidity logs in CSV or Excel format—including real-time deviation alerts and post-test statistical summaries (min/max/mean/stdev). Audit trail functionality—tracking operator login, profile edits, and system event logs—is available upon configuration with compliant third-party software meeting ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• Temperature cycling qualification per IPC-9701 and IPC-J-STD-020 for surface-mount technology (SMT) assemblies.
• Thermal shock pre-screening of power electronics prior to HALT/HASS execution.
• Validation of thermal interface materials (TIMs), encapsulants, and conformal coatings under aggressive gradient conditions.
• Environmental stress screening (ESS) of avionics LRUs per DO-160 Section 4 and RTCA/DO-160G.
• Accelerated aging studies for polymer-based enclosures, adhesives, and elastomeric seals.
• Pre-compliance testing for automotive components against ISO 16750-4 and GMW3172 thermal durability requirements.

FAQ

What is the standard warranty coverage for the KS-TH series?

Standard warranty covers parts and labor for 12 months from commissioning date; extended service agreements (up to 36 months) are available with preventive maintenance scheduling.

Can the chamber be integrated into an existing lab automation network?

Yes—RS485 Modbus RTU and Ethernet TCP/IP interfaces are standard; OPC UA and MQTT support is available via optional firmware upgrade.

Is humidity control mandatory, or can it be omitted to reduce cost and footprint?

Humidity is an optional subsystem; all KS-TH models operate as pure thermal cycling chambers without it, retaining full rapid ramp performance and temperature range.

How is calibration traceability maintained across the operating range?

Each unit ships with a NIST-traceable calibration certificate covering at least three points per decade (−40 °C, 25 °C, 85 °C); field recalibration services follow ISO/IEC 17025 procedures.

Are custom internal configurations—such as shelf layouts or mounting fixtures—supported?

Yes—custom internal fixtures, load-bearing shelves, and cable management trays can be fabricated per customer mechanical drawings and installed prior to factory acceptance testing.