Other Brands Rapid Temperature Cycling Chamber (High-Low Temperature Environmental Test Chamber)

Overview

The Rapid Temperature Cycling Chamber is an environmental stress screening (ESS) system engineered for precise, repeatable simulation of extreme thermal and hygrothermal conditions. Based on forced-air convection with dual-stage refrigeration and high-efficiency electric heating, the chamber delivers controlled rapid transitions between low and high temperatures—enabling accelerated life testing, reliability validation, and qualification of electronic components, automotive ECUs, aerospace subsystems, and materials under dynamic thermal loads. Its architecture adheres to fundamental principles of thermal dynamics and psychrometrics, ensuring traceable performance against internationally recognized test protocols including IEC 60068-2, MIL-STD-810H, and GJB 150.3/150.4. Designed for laboratory and production-line environments, the chamber supports both steady-state and programmable ramp-and-soak profiles with non-linear temperature change capability—critical for replicating real-world thermal shock scenarios without mechanical stress from liquid immersion or direct gas injection.

Key Features

• Multi-range temperature capability: Six selectable operating ranges—from -20°C to +150°C up to -85°C to +150°C—facilitated by cascade refrigeration systems with environmentally compliant refrigerants (R404A/R23).
• Precision climate control: PID-based digital controller with independent feedback loops for temperature and humidity, delivering ±0.5°C stability and ±1.5°C uniformity across the working volume (per GB/T 10592-2008 and IEC 60068-3-5).
• High-speed thermal transition: Achieves ≥10°C/min average ramp rates under unloaded conditions, verified per MIL-STD-810H Method 501.7 (high temperature) and Method 502.7 (low temperature), enabling efficient HALT/HASS pre-screening.
• Corrosion-resistant construction: Interior chamber fabricated from mirror-polished SUS304 stainless steel (electropolished finish optional); exterior available in either full SUS304 or rust-inhibited cold-rolled steel with electrostatic powder coating (RAL 9016 signal white).
• Integrated humidity control: Steam-type humidification system with dehumidification via refrigerant coil cooling and hot-gas bypass, maintaining 20–98% RH with ±1% RH fluctuation and ±3.0% RH uniformity (per GB/T 10586-2006 and IEC 60068-2-78).
• Comprehensive safety architecture: Includes over-temperature cut-off, compressor high-pressure protection, phase failure detection, door interlock, and independent mechanical temperature limiter—all documented in the factory calibration certificate and user manual.

Sample Compatibility & Compliance

This chamber accommodates standard test specimens up to 500 mm × 500 mm × 500 mm (W×D×H), with optional extended-depth or multi-shelf configurations available upon request. It is fully compatible with test fixtures, thermocouple feedthroughs (standard 4-port), and external data loggers via analog voltage outputs (0–10 VDC). The unit complies with national and international environmental test standards including GB/T 2423.1–2023 (cold), GB/T 2423.2–2023 (dry heat), GB/T 2423.4–2019 (cyclic damp heat), GB/T 2423.34–2012 (combined temperature/humidity cycling), GJB 150.3A–2009 (low temperature), GJB 150.4A–2009 (high temperature), and IEC 60068-2-14 (change of temperature). All compliance documentation—including type test reports, conformity certificates, and traceable calibration records—is supplied with shipment.

Software & Data Management

The embedded controller features a 7-inch TFT-LCD touchscreen interface supporting multistep programmable cycles (up to 99 segments, 999 cycles), real-time graphing, and USB data export (CSV format). Optional PC-based software (Windows 10/11 compatible) enables remote monitoring, automated report generation (PDF/Excel), audit trail logging, and 21 CFR Part 11-compliant user access control (role-based permissions, electronic signatures, and immutable event history). Data integrity safeguards include cyclic redundancy check (CRC) on stored logs, automatic backup to external drives, and time-stamped calibration verification events—meeting GLP and ISO/IEC 17025 requirements for accredited testing laboratories.

Applications

• Qualification testing of printed circuit boards (PCBs), semiconductor packages, and power modules per AEC-Q200 and JEDEC JESD22-A104.
• Environmental stress screening (ESS) of automotive electronic control units (ECUs) prior to DV/PV validation.
• Material compatibility assessment for adhesives, encapsulants, and conformal coatings under combined thermal-hygric loading.
• Reliability growth testing (RGT) of avionics hardware in accordance with DO-160 Section 4 and RTCA/DO-160G.
• Research-grade thermal fatigue studies in university and government R&D labs, supporting publications requiring ISO 17025-traceable environmental conditioning.
• Production line burn-in and incoming inspection of high-reliability components used in medical devices (IEC 60601-1) and industrial automation systems.

FAQ

What standards does this chamber formally comply with?
It meets GB/T 10592-2008, GB/T 10586-2006, GB/T 2423.1–2023, GB/T 2423.2–2023, GB/T 2423.4–2019, GB/T 2423.34–2012, GJB 150.3A–2009, GJB 150.4A–2009, IEC 60068-2-1, IEC 60068-2-2, and MIL-STD-810H Methods 501.7 and 502.7.
Is the chamber suitable for continuous operation in a certified quality lab?
Yes—it supports GLP/GMP-aligned workflows with optional 21 CFR Part 11 software, full calibration traceability to NIM (China) or NIST (USA), and documented uncertainty budgets per ISO/IEC 17025 Annex A.3.
Can humidity be disabled during thermal cycling tests?
Yes. The controller allows independent activation/deactivation of humidification and dehumidification systems, enabling dry thermal cycling per MIL-STD-810H Method 501.7/502.7 or IEC 60068-2-1/2.
What is the typical lead time for factory calibration and delivery?
Standard units ship with ISO/IEC 17025-accredited calibration certificate (temperature/humidity at three points), with lead time of 4–6 weeks after order confirmation and deposit receipt.
Are custom modifications supported, such as additional ports or specialized shelving?
Yes—OEM integration services include custom penetration plates (electrical, pneumatic, optical), reinforced shelves, internal lighting, and RS-485/Modbus TCP communication modules for SCADA integration.