DRETOP THS-A100-II High-Low Temperature Environmental Test Chamber

Overview

The DRETOP THS-A100-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. Based on the principle of forced convection air circulation and dual-mode thermoelectric regulation—combining high-efficiency nickel-chromium heating elements with a sealed compressor refrigeration system—the chamber delivers stable, repeatable temperature profiles across its full operating range of −20 °C to +150 °C. Designed in accordance with international test standard frameworks—including IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), and ASTM D3574 (Foam Testing)—the THS-A100-II supports both steady-state and dynamic thermal cycling protocols. Its 100 L stainless steel working chamber (500 mm × 400 mm × 500 mm) accommodates typical samples from electronics, automotive subsystems, LED modules, and precision instrumentation—enabling compliance verification for QC/QA labs, R&D centers, and contract testing facilities operating under ISO/IEC 17025 or GMP-aligned quality systems.

Key Features

• Full-color 7-inch touchscreen controller with bilingual interface (English/Chinese), password-protected multi-level access control, and audit-trail-capable operation logging.
• Advanced programmability: up to 1000 user-defined test programs, each supporting 100 time-temperature segments with ramp/hold/slope control logic.
• Independent thermal actuation circuits for heating, cooling, and optional humidity control—minimizing cross-interference and improving system longevity.
• Optimized airflow architecture featuring centrifugal forced convection fans and a symmetrical wind tunnel design, achieving ≤2 °C temperature uniformity and rapid stabilization (<3 min) after door opening.
• Heated double-glazed observation window with anti-frost coating prevents condensation and ensures unobstructed visual monitoring without compromising thermal integrity.
• Robust mechanical construction: 304 stainless steel interior with radius-rounded corners, electrostatically sprayed cold-rolled steel exterior, and heavy-duty casters with locking mechanism for lab mobility and stability.
• Comprehensive safety suite including over-temperature cut-off, compressor/fan overload protection, ground-fault circuit interruption (GFCI), and auto-restart functionality after power recovery.
• Energy-efficient operation using imported hermetic compressors and non-ozone-depleting R404A or R134a refrigerants, compliant with EU F-Gas Regulation and EPA SNAP requirements.

Sample Compatibility & Compliance

The THS-A100-II is routinely deployed for qualification testing of electronic assemblies (IPC-A-610), automotive ECUs (ISO 16750-4), LED lighting modules (LM-80), and medical device packaging (ISO 11607). Its internal dimensions and standardized 50 mm-diameter test port (standard) support powered or signal-integrated testing configurations. The chamber meets structural and performance criteria referenced in MIL-STD-810H Method 501.7 (High Temperature), Method 502.7 (Low Temperature), and GB/T 10589–2008 (Chinese national standard for low-temperature test chambers). While the base model is rated for non-hazardous environments (Class I, Division 2 per NEC Article 500), optional upgrades—including explosion-proof wiring conduits and intrinsically safe sensors—are available upon request for ATEX/IECEx Zone 2 applications.

Software & Data Management

The embedded controller supports real-time data acquisition at configurable intervals (1–60 sec), with local storage capacity for ≥30 days of continuous timestamped records. All datasets export natively to CSV/Excel formats and can be visualized as time-series plots with dual-Y axis (temperature vs. time, deviation vs. setpoint). Optional RS485 Modbus RTU or USB-C connectivity enables integration with LabVIEW, MATLAB, or custom MES platforms. For remote supervision, the chamber’s embedded Ethernet module connects to DRETOP’s cloud platform—supporting simultaneous access by up to 10 authorized users via web browser or native iOS/Android application. All remote commands, parameter changes, and alarm events are logged with user ID, timestamp, and IP address—fulfilling traceability requirements under FDA 21 CFR Part 11 (electronic records/signatures) and GLP Annex 11 when configured with audit trail activation.

Applications

• Thermal cycling validation of printed circuit boards (PCBs) and solder joint reliability per JEDEC JESD22-A104.
• Pre-conditioning of lithium-ion battery cells prior to charge/discharge cycling tests (UN 38.3 Section 38.3.4).
• Accelerated aging of polymer enclosures and gasket materials under extreme thermal gradients.
• Stress screening of aerospace avionics housings per DO-160G Section 4 (Temperature Variation).
• Environmental qualification of IoT sensor nodes operating in outdoor infrastructure deployments.
• Material coefficient-of-thermal-expansion (CTE) correlation studies using dimensional metrology fixtures mounted inside the chamber.

FAQ

What is the maximum allowable ambient temperature for continuous operation?
The chamber is rated for installation in environments up to 30 °C ambient, with adequate ventilation clearance (≥50 cm on all sides) and relative humidity ≤80% non-condensing.
Can the THS-A100-II be integrated into an existing facility SCADA system?
Yes—via optional RS485 Modbus RTU interface with register mapping documentation provided. Custom OPC UA gateway integration is supported through third-party middleware.
Is calibration certification included with shipment?
A factory-issued calibration report (traceable to NIM, China) covering temperature uniformity and fluctuation at three points is supplied. UKAS or DAkkS-accredited field calibration services are available separately.
Does the unit comply with energy efficiency regulations such as ERP Directive 2009/125/EC?
Yes—the compressor system and heater controls meet Tier 2 energy performance thresholds defined in Commission Regulation (EU) No 626/2011 for climate engineering equipment.
What maintenance intervals are recommended for optimal long-term stability?
Compressor oil inspection every 24 months; condenser coil cleaning quarterly; door gasket integrity check semiannually; and annual verification of PID tuning parameters using certified reference probes.