DRETOP THS-C225-II High-Low Temperature & Humidity Environmental Test Chamber

Overview

The DRETOP THS-C225-II High-Low Temperature & Humidity Environmental Test Chamber is an engineered precision system designed for accelerated environmental stress testing of industrial components and finished products under controlled thermal and hygrothermal conditions. Based on the principle of forced-air convection with independent dual-loop control for temperature and humidity, the chamber replicates real-world climatic exposures—including steady-state high/low temperature, constant humidity, cyclic temperature-humidity profiles, and combined thermal-humidity stress sequences—as defined in international test standards such as IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-30 (Damp Heat, Cyclic), and MIL-STD-810G Method 502.5. Its robust architecture supports long-duration reliability validation for electronics, automotive modules, LED lighting assemblies, aerospace subsystems, and medical device enclosures—enabling manufacturers to assess material integrity, solder joint fatigue, seal performance, condensation resistance, and functional stability across extreme operational envelopes.

Key Features

• 10.1-inch full-color capacitive touchscreen HMI with bilingual (English/Chinese) interface, hierarchical password-protected access control (up to 10 user accounts with customizable permission levels), and audit-trail-capable operation logging.
• Advanced programmable logic controller supporting up to 1,000 test programs, each with 100 configurable segments; enables precise ramp/soak/humidity slope control, scheduled start/stop, program linking, and transition-to-constant-value mode.
• Independent PID-controlled heating (NiCr alloy heaters), cooling (imported hermetic compressor with eco-friendly R404A/R23 cascade refrigeration), and humidification (electric steam generator) systems—minimizing cross-interference and improving thermal response fidelity.
• Optimized air circulation design featuring centrifugal forced-draft blower, aerodynamically shaped wind ducts, and uniform airflow distribution—achieving ≤2 °C temperature uniformity per IEC 60068-3-5 and rapid stabilization (<3 min) after door opening.
• Double-layer tempered glass observation window with embedded anti-frost heating film and LED interior lighting—preventing condensation-induced sample contamination while enabling real-time visual monitoring.
• Stainless steel interior chamber (304 grade) with radius-rounded corners, removable adjustable shelves, and electrostatically sprayed carbon steel outer shell—ensuring corrosion resistance, cleanability, and mechanical durability.
• Integrated safety architecture: over-temperature cutoff, compressor/fan overload protection, leakage current detection, automatic power recovery after outage, and audible/visual alarm signaling compliant with IEC 61000-4-2/4-4 ESD immunity requirements.

Sample Compatibility & Compliance

The THS-C225-II accommodates test specimens up to 600 mm (W) × 500 mm (D) × 750 mm (H), with standard 50 mm diameter cable/port access openings (optional customization available). It meets structural and operational requirements for GLP-compliant laboratories and supports traceable data acquisition per FDA 21 CFR Part 11 when configured with optional electronic signature and audit trail modules. The chamber’s thermal performance adheres to ISO 16750-4 (Road vehicles – Environmental conditions and testing), JEDEC JESD22-A104F (Temperature Cycling), and IPC-9701A (Performance Assessment of Solder Attachments), making it suitable for qualification testing in automotive Tier-1 supply chains and electronics manufacturing services (EMS).

Software & Data Management

Equipped with embedded Ethernet/WiFi connectivity and cloud-enabled remote management platform, the THS-C225-II supports simultaneous multi-device access (up to 5 concurrent users via web browser, iOS/Android app, or Windows desktop client). All interfaces mirror the local HMI layout in real time, ensuring zero retraining overhead. Data logging records temperature, humidity, runtime, alarm events, and program execution status at user-defined intervals (1 s to 60 min), exportable directly to CSV/Excel or proprietary .DRT binary format. Optional software packages provide statistical process control (SPC) charting, deviation trend analysis, automated report generation (PDF/HTML), and integration with LabVantage or Thermo Fisher SampleManager LIMS via RESTful API.

Applications

• Electrical & electronic component validation: PCB thermal cycling, capacitor aging, connector contact resistance under humidity, display panel dew-point tolerance.
• Automotive electronics: ECU cold-start behavior, infotainment system condensation resistance, sensor drift characterization across -40 °C to +125 °C.
• LED lighting: Lumen maintenance testing at elevated junction temperatures, phosphor degradation kinetics under combined thermal-humidity stress.
• Medical device packaging: ASTM F1980 accelerated aging of sterile barrier systems, peel strength evaluation after moisture exposure.
• Materials science: Polymer coefficient of thermal expansion (CTE) measurement, adhesive bond strength retention, coating blistering onset analysis.

FAQ

What is the maximum allowable ambient temperature for continuous operation?
The chamber is rated for ambient operation between 5 °C and 35 °C with relative humidity ≤80% RH non-condensing.
Does the THS-C225-II support USB data export without network connection?
Yes—internal storage (8 GB) allows direct USB flash drive export of log files, program archives, and configuration backups.
Can the unit be integrated into a centralized facility monitoring system?
Yes—Modbus TCP and OPC UA protocols are supported via optional communication module for SCADA/MES integration.
Is calibration certification included with delivery?
A factory-as-built temperature/humidity calibration report (traceable to NIM, China) is provided; ISO/IEC 17025-accredited field calibration service is available upon request.
What maintenance intervals are recommended for optimal performance?
Compressor oil inspection every 2,000 operating hours; condenser coil cleaning every 6 months; humidity sensor verification annually or per 500 test cycles—documented in the included maintenance logbook.