DRETOP THS-D100-I High-Low Temperature Environmental Test Chamber

Overview

The DRETOP THS-D100-I High-Low Temperature Environmental Test Chamber is an engineered precision system designed for accelerated environmental stress testing of industrial components and finished products under controlled thermal conditions. Operating on the principle of forced-air convection with independent heating and refrigeration circuits, it delivers reproducible temperature profiles across a wide operational range—from cryogenic lows of -80 °C to elevated highs of +120 °C. This chamber meets foundational requirements for thermal cycling, steady-state exposure, and step-change conditioning per international test standards including IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), and MIL-STD-810G Method 501.5/502.5. Its architecture supports both standalone qualification protocols and integration into broader reliability engineering workflows—particularly for validation of electronic assemblies, automotive ECUs, LED modules, aerospace subsystems, and medical device enclosures subjected to real-world climatic extremes.

Key Features

• Industrial-grade 7-inch color touchscreen HMI with multilingual interface (English/Chinese), user-level password protection, and up to 1000 programmable test sequences—each supporting up to 100 segments with ramp/soak logic.
• Independent PID-controlled heating (nickel-chromium alloy heaters) and cooling (imported hermetic compressor with eco-friendly R404A/R23 cascade refrigerant system) circuits ensure precise decoupling of thermal dynamics and enhanced system longevity.
• Optimized air circulation design featuring high-efficiency centrifugal blower, symmetric dual-channel wind ducts, and adjustable airflow distribution—achieving ≤2 °C temperature uniformity (per IEC 60068-3-5) and rapid recovery (<3 min) after door opening.
• Double-layer heated anti-fog tempered glass observation window with integrated defrosting element and LED interior lighting—enabling continuous visual monitoring without condensation interference or sample contamination.
• Robust construction: electrostatically powder-coated carbon steel exterior; 304 stainless steel seamless inner chamber with radius-rounded corners and removable adjustable shelves; high-performance silicone door gasket maintaining integrity from -80 °C to +120 °C.
• Comprehensive safety architecture including over-temperature cutoff, compressor/fan overload protection, leakage current detection, phase failure monitoring, and automatic power recovery after grid interruption.
• Standard 50 mm diameter test port with EPDM sealing cap—supporting live electrical, pneumatic, and signal feedthrough during operation.

Sample Compatibility & Compliance

The THS-D100-I accommodates samples up to 500 × 400 × 500 mm in volume and is routinely deployed for qualification testing of printed circuit boards (PCBs), power converters, battery packs, optical sensors, and polymer-based housings. Its thermal performance complies with key regulatory and industry frameworks: ISO/IEC 17025-accredited laboratories utilize this chamber for calibration traceability; automotive suppliers apply it per AEC-Q200 stress screening; electronics manufacturers reference JEDEC JESD22-A104 for thermal cycling validation. While not intrinsically explosion-proof, its standard configuration satisfies non-hazardous area classification (IEC 60079-0) and may be adapted for Class I, Division 2 environments upon request. Humidity control is available as an optional upgrade (THS-D100-IH variant), extending compliance to IEC 60068-2-78 (damp heat, cyclic).

Software & Data Management

Embedded firmware supports local data logging at user-defined intervals (1–600 sec), storing up to 100,000 data points internally. Export options include CSV-formatted Excel reports and native .DAT files compatible with DRETOP’s PC-based analysis suite (ChamberLink v4.x). Remote access is enabled via Ethernet/Wi-Fi using HTTP/HTTPS protocols—fully compatible with modern browsers (Chrome, Edge, Safari) and responsive on iOS/Android mobile devices. Up to five concurrent users may monitor and control the unit in real time with role-based permissions (Administrator, Supervisor, Operator). Audit trail functionality records all parameter changes, start/stop events, and alarm triggers—supporting GLP/GMP documentation requirements under FDA 21 CFR Part 11 when paired with electronic signature modules. Firmware updates and historical log retrieval are performed remotely without physical intervention.

Applications

• Thermal aging studies of elastomers, adhesives, and encapsulants per ASTM D3045.
• Pre-conditioning of lithium-ion battery cells prior to electrochemical characterization.
• Environmental screening of avionics hardware per RTCA DO-160 Section 4 (Temperature Variation).
• Stress testing of automotive infotainment displays under combined thermal shock and vibration inputs.
• Validation of packaging material barrier properties under accelerated temperature-humidity gradients.
• Reliability growth testing of IoT edge devices operating in uncontrolled outdoor deployments.

FAQ

What is the standard warranty coverage for the THS-D100-I?**
DRETOP provides a 24-month limited warranty covering parts and labor for defects in materials and workmanship under normal use—excluding consumables, damage from misuse, or unauthorized modifications.
Can the chamber be integrated into a central laboratory management system?**
Yes. Optional RS485 Modbus RTU or Ethernet TCP/IP communication interfaces enable bidirectional integration with LIMS, SCADA, or MES platforms for automated job dispatch and result ingestion.
Is third-party calibration certification available?**
Factory calibration certificates (traceable to NIM, China) are included. UKAS or DAkkS-accredited field calibration services can be arranged through authorized DRETOP partners upon request.
How is temperature uniformity verified during installation?**
DRETOP performs on-site verification using a 9-point sensor array per IEC 60068-3-5, generating a signed uniformity report prior to commissioning.
Does the unit support custom programming for non-standard thermal profiles?**
Yes. The controller accepts user-defined segment logic—including conditional jumps, loop counters, and external trigger inputs—via the built-in editor or PC upload.