DRETOP THS-B150-I High-Low Temperature Environmental Test Chamber

Overview

The DRETOP THS-B150-I High-Low Temperature Environmental Test Chamber is an engineered solution for accelerated environmental stress testing of industrial components and finished products under 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 502.6—the chamber delivers precise, repeatable temperature profiles across a wide operating range of -40 °C to +120 °C. Its dual-purpose architecture supports both steady-state thermal conditioning and dynamic temperature cycling, enabling evaluation of thermal expansion, material embrittlement, solder joint integrity, seal performance, and long-term reliability under thermal stress. The chamber employs a robust dual-loop control system: independent heating (nickel-chromium alloy resistive elements) and refrigeration (imported hermetic scroll compressor with eco-friendly R404A or R507 refrigerant) subsystems operate in parallel to minimize cross-interference and ensure rapid thermal response. Air circulation is maintained by a high-efficiency centrifugal blower with optimized duct geometry—designed to meet ASTM E145 Class A uniformity requirements—ensuring ≤2 °C spatial temperature deviation throughout the 150 L working volume (500 × 500 × 600 mm).

Key Features

• Full-color 7-inch capacitive touchscreen interface with multilingual support (English/Chinese), hierarchical password-protected access (up to 3 permission levels), and audit-trail-capable operation logging.
• Advanced programmable logic: 1000 stored test protocols, each supporting up to 100 time-temperature (and optional humidity) segments; slope control, hold-to-stabilize, jump-to-segment, and loop-repeat functions included.
• Thermal management system featuring P.I.D. auto-tuning, real-time adaptive compensation, and dual-stage heating/cooling control—achieving ±0.5 °C temperature fluctuation at setpoint stability.
• Double-glazed, low-emissivity observation window with integrated anti-frost heating film and LED illumination—prevents condensation and enables unobstructed visual monitoring without thermal disturbance.
• Structural integrity: 304 stainless steel interior chamber with radius-corner welding; electrostatically coated cold-rolled steel outer shell; silicone rubber door gasket rated for continuous operation from -40 °C to +150 °C.
• Standard 50 mm diameter test port (with brass plug and silicone O-ring seal) allows live electrical, pneumatic, or signal feedthrough during operation—compliant with IEC 61000-4-21 radiated immunity test setup requirements.
• Integrated safety suite: over-temperature cut-off (independent mechanical backup thermostat), compressor discharge temperature monitoring, fan failure detection, ground-fault circuit interruption (GFCI), and automatic power recovery after grid interruption.

Sample Compatibility & Compliance

The THS-B150-I accommodates a broad spectrum of test specimens—from PCB assemblies and automotive ECUs to medical device housings and polymer packaging—without requiring sample-specific fixtures. Its 150 L internal volume and freely adjustable stainless steel shelves (2 standard, load-rated to 15 kg per shelf) support vertical stacking and airflow optimization. All materials contacting the test environment—including insulation (high-density polyurethane foam, CFC-free), chamber lining, and gaskets—conform to RoHS Directive 2011/65/EU and REACH Annex XVII restrictions. The unit is CE-marked per Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. Optional calibration documentation (NIST-traceable temperature sensors) and IQ/OQ validation packages are available to support GLP, ISO/IEC 17025, and FDA 21 CFR Part 11 compliance for regulated industries.

Software & Data Management

Embedded firmware supports local data acquisition at 1-second intervals, with onboard storage for ≥30 days of continuous 4-channel logging (chamber air, payload surface, inlet/outlet air). Export formats include .CSV (compatible with Excel, MATLAB, JMP) and native .DRT binary files for advanced statistical process control (SPC) analysis. Remote connectivity is implemented via embedded Ethernet (TCP/IP stack), Wi-Fi (802.11 b/g/n), and cellular (4G LTE optional), enabling secure HTTPS access through any HTML5-compliant browser. The DRETOP Cloud Platform provides role-based dashboards, real-time alarm push notifications (SMS/email), historical trend overlays, and automated report generation (PDF/Excel). Audit trails record all user actions—including parameter changes, program starts/stops, and login/logout events—with immutable timestamps—meeting ALCOA+ principles for data integrity in regulated environments.

Applications

• Electronics reliability: Thermal cycling of printed circuit boards (IPC-9701), solder joint fatigue assessment (JEDEC JESD22-A104), and burn-in screening of semiconductors.
• Automotive component validation: Climate endurance testing of sensors, connectors, and infotainment modules per SAE J2223 and ISO 16750-4.
• Materials science: Coefficient of thermal expansion (CTE) measurement, glass transition temperature (Tg) estimation via dimensional change monitoring, and aging studies of elastomers and adhesives.
• Medical device qualification: Packaging integrity verification (ASTM F1980), sterilization process development support, and shelf-life acceleration per ISO 11607-1.
• Quality assurance labs: Incoming inspection of raw materials (e.g., battery electrolytes, optical resins), supplier qualification, and internal process capability studies (Cpk/Ppk).

FAQ

What is the standard warranty period for the THS-B150-I?

DRETOP provides a 24-month parts-and-labor warranty from date of commissioning, extendable to 36 months with annual preventive maintenance contracts.
Can the chamber be configured for humidity control?

Yes—humidification (steam generator + ultrasonic humidifier) and dehumidification (cold trap + desiccant wheel) options are available as factory-installed upgrades, extending functionality to full thermal-hygrothermal testing per IEC 60068-2-30.
Is third-party calibration certification included?

Factory calibration using NIST-traceable reference thermometers is performed pre-shipment. ISO/IEC 17025-accredited calibration certificates (with uncertainty budgets) are available as an add-on service.
How is remote firmware updates handled?

Over-the-air (OTA) updates are delivered via encrypted HTTPS channel through the DRETOP Cloud Platform; update logs, version history, and rollback capability are retained in system memory.
Does the unit comply with energy efficiency regulations?

The THS-B150-I meets EU Ecodesign Directive (EU) 2019/2021 requirements for environmental engineering equipment, achieving IE3-class motor efficiency and refrigerant charge minimization (≤1.2 kg R404A).