DRETOP THS-A150-II High-Low Temperature Environmental Test Chamber

Overview

The DRETOP THS-A150-II High-Low Temperature Environmental Test Chamber is an engineered solution for accelerated environmental stress testing of industrial components and finished products under precisely controlled thermal conditions. Designed in accordance with international test standards—including IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), and MIL-STD-810G Method 502.5—the chamber provides reproducible, traceable thermal profiles across a wide operating range from −20 °C to +150 °C. Its dual independent control architecture separates heating, cooling, and airflow management systems to minimize cross-interference and ensure stable thermal transitions. The chamber employs a high-efficiency hermetic compressor with R134a or R404A refrigerant (non-ozone-depleting), coupled with nickel-chromium alloy heating elements and a centrifugal forced-air circulation system optimized for low turbulence and high uniformity. This configuration enables compliance with critical performance metrics required for qualification testing in electronics, automotive, aerospace, and medical device manufacturing sectors.

Key Features

• Full-color 7-inch capacitive touchscreen controller supporting bilingual (English/Chinese) interface, multi-level password-protected access, and up to 100 programmable steps per test sequence (max. 1000 stored programs)
• PID self-tuning algorithm with real-time correction for thermal inertia, ensuring temperature stability within ±0.5 °C and spatial uniformity ≤2 °C across the full working volume
• Dual-layer heated anti-fog tempered glass observation window with integrated LED lighting—prevents condensation-induced sample contamination during low-temperature operation
• Stainless steel interior (304 grade) with radius-rounded corners, removable stainless steel shelves, and electrostatically sprayed carbon steel exterior for corrosion resistance
• Independent control of heating, cooling, and air circulation subsystems—reduces thermal overshoot, extends component service life, and lowers long-term operational cost
• Standard 50 mm diameter test port with silicone gasket; supports live electrical, pneumatic, and signal feedthrough for in-situ functional evaluation under thermal stress
• Comprehensive safety suite: over-temperature cut-off, compressor/fan overload protection, earth leakage detection, automatic restart after power recovery, and audible/visual alarm escalation
• Integrated data logging with timestamped CSV/Excel export and graphical trend visualization; optional cloud-based remote monitoring via secure HTTPS web portal or native iOS/Android application

Sample Compatibility & Compliance

The THS-A150-II accommodates samples up to 500 mm × 500 mm × 600 mm (interior dimensions), making it suitable for PCB assemblies, LED modules, automotive ECUs, mobile phone housings, sensor packages, and small mechanical subassemblies. Its thermal performance meets the repeatability and accuracy requirements of ISO/IEC 17025-accredited laboratories conducting environmental qualification per IPC-9701, AEC-Q200, and JEDEC JESD22-A104. While not intrinsically explosion-proof, the chamber complies with EN 61000-6-3 (EMC emissions) and EN 61000-6-2 (immunity), and its construction materials conform to RoHS Directive 2011/65/EU. Optional calibration certification (NIST-traceable) and IQ/OQ documentation packages are available for GLP/GMP-regulated environments.

Software & Data Management

The embedded controller firmware supports audit-trail-enabled operation logs compliant with FDA 21 CFR Part 11 requirements when deployed with optional electronic signature and user-role assignment modules. All test parameters—including setpoints, ramp rates, dwell times, and real-time chamber readings—are timestamped and stored internally (≥30 days at 1-second resolution) and exportable via USB or RS485. The included PC software enables offline analysis, comparative overlay of multiple test runs, and generation of PDF reports with embedded graphs. Cloud connectivity permits concurrent remote access by up to five authorized users, with configurable permission tiers (Administrator, Supervisor, Operator) governing parameter editing, program execution, and data export rights. Firmware updates are delivered over-the-air without physical intervention.

Applications

This chamber serves as a core tool for thermal validation in R&D labs and quality assurance departments. Typical use cases include: temperature cycling per JEDEC JESD22-A104 for solder joint reliability assessment; high-temperature storage testing of lithium-ion battery cells; cold-start simulation for automotive infotainment modules; accelerated aging of polymer enclosures under thermal-humidity interaction (when paired with optional humidification module); and pre-compliance screening of consumer electronics prior to formal IEC 60068 certification. Its programmable ramp-and-soak capability also supports failure mode analysis in HALT/HASS protocols when integrated into broader reliability engineering workflows.

FAQ

What is the standard warranty period for the THS-A150-II?
DRETOP provides a 24-month limited warranty covering parts and labor for defects in materials and workmanship under normal laboratory use.
Can the chamber be calibrated to NIST-traceable standards?
Yes—optional factory calibration with certificate (including uncertainty budget) is available upon request; on-site calibration services are supported globally through authorized partners.
Is humidity control available on this model?
The THS-A150-II is configured for dry thermal testing only; however, the THS-A150-II-H variant adds integrated humidification (30–95% RH) and meets IEC 60068-2-78 requirements.
Does the controller support Ethernet or Wi-Fi connectivity?
The base configuration includes RS485 and USB; Ethernet and Wi-Fi modules are optional add-ons enabling integration into enterprise lab networks and LIMS platforms.
How is temperature uniformity verified across the working volume?
Uniformity is validated per ASTM E744 using nine calibrated PT100 sensors placed at standardized locations (center + eight corners); results are documented in the Factory Acceptance Test report provided with each unit.