DRETOP THS-C800-II High-Low Temperature Environmental Test Chamber

Overview

The DRETOP THS-C800-II High-Low Temperature Environmental Test Chamber is an engineered precision system designed for controlled thermal stress testing of industrial components and materials under rigorously defined ambient conditions. Operating on the principle of forced-air convection with independent heating, cooling, and (optional) humidification subsystems, it replicates real-world environmental extremes—including sustained low-temperature storage, rapid thermal cycling, and high-temperature operational validation—to assess product reliability, material integrity, and long-term performance stability. The chamber meets fundamental requirements of international test standards including IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), and MIL-STD-810G Method 502.5 (Low Temperature) and Method 501.5 (High Temperature). Its robust architecture supports continuous operation in QC laboratories, R&D facilities, and manufacturing validation environments where reproducible thermal exposure is critical to product certification and compliance workflows.

Key Features

• Industrial-grade 10.1-inch full-color capacitive touchscreen interface with multilingual (English/Chinese) display and hierarchical password-protected access control—supporting up to 10 user accounts with customizable permission levels (operator, engineer, administrator).
• Advanced programmable logic controller enabling up to 1000 stored test profiles; each profile supports up to 100 sequential segments with independent ramp/hold settings for temperature, humidity (if equipped), and lighting cycles.
• Dual independent control loops for heating and refrigeration systems—using NiCr alloy heaters and a high-efficiency imported hermetic compressor—ensuring precise thermal response and minimizing cross-interference during dynamic transitions.
• Optimized air circulation design featuring centrifugal forced-convection fans and a symmetrical dual-channel wind tunnel, achieving ≤2 °C temperature uniformity across the full 800 L working volume (1000 × 800 × 1000 mm).
• Double-layer tempered glass observation window with integrated anti-frost heating element and LED interior lighting—preventing condensation-induced sample contamination and enabling real-time visual monitoring without thermal disturbance.
• Electrostatically sprayed cold-rolled steel exterior and 304 stainless-steel seamless inner chamber with radius-rounded corners and removable adjustable shelves for flexible sample configuration.
• Comprehensive safety architecture: over-temperature cut-off, compressor/fan overload protection, leakage current detection, automatic power recovery after outage, and audible/visual alarm signaling per IEC 61000-4-2 compliance.
• Standard 50 mm diameter test port with silicone gasket—compatible with powered, signal-transmitted, or pneumatic feedthroughs for in-situ functional evaluation under thermal stress.

Sample Compatibility & Compliance

The THS-C800-II accommodates a broad spectrum of physical samples—from printed circuit boards (PCBs), automotive ECUs, and LED modules to polymer enclosures, battery packs, and medical device housings—without requiring modification to standard mounting fixtures. Its internal volume (800 L) and floor-loading capacity (≤50 kg distributed load) support both single-unit qualification and batch-level accelerated life testing. The chamber conforms to mechanical and electrical safety directives under CE marking (2014/35/EU Low Voltage Directive and 2014/30/EU EMC Directive). While humidity control is optional on this C-series model, all variants are compatible with future retrofitting of steam-based humidification systems meeting ISO 17025-accredited calibration traceability. Data logging integrity adheres to GLP/GMP principles via time-stamped audit trails, electronic signature capability, and exportable CSV/Excel reports—facilitating FDA 21 CFR Part 11 readiness when deployed with validated software configurations.

Software & Data Management

Embedded firmware supports local data acquisition at 1-second intervals, with onboard storage for ≥30 days of continuous 4-channel (T1–T4) temperature logging. Real-time data visualization includes trend graphs, deviation overlays, and pass/fail threshold markers. Export functionality generates timestamped Excel-compatible files (.xlsx) or proprietary .drt binary archives for archival and third-party analysis. Remote connectivity is enabled via Ethernet (RJ45), optional RS485/USB interfaces, and secure cloud gateway integration. The DRETOP CloudLink platform permits simultaneous multi-user access from web browsers (Chrome, Edge, Safari), iOS/Android mobile apps, and Windows desktop clients—all rendering identical UI fidelity and synchronized control states. Role-based remote permissions allow QA supervisors to review historical runs, engineers to modify active programs, and maintenance staff to monitor system health metrics (compressor runtime, fan RPM, voltage stability) without altering test parameters.

Applications

• Electronics reliability screening: thermal shock endurance of solder joints, capacitor derating verification, and semiconductor junction temperature validation per JEDEC JESD22-A104.
• Automotive component qualification: ECU cold-start behavior at −40 °C, infotainment system thermal drift at +85 °C, and connector contact resistance stability across −60 °C to +120 °C.
• Materials science research: coefficient of thermal expansion (CTE) measurement of composites, phase transition analysis of thermoplastics, and aging kinetics of elastomeric seals.
• Medical device regulatory testing: ISO 11607 packaging integrity assessment under accelerated aging protocols, and sterilization compatibility verification for reusable instruments.
• Aerospace hardware acceptance: MIL-STD-810G thermal vacuum pre-screening, avionics enclosure thermal management validation, and battery thermal runaway propagation studies.

FAQ

What is the maximum allowable ambient operating temperature for the THS-C800-II?
The unit is rated for installation in rooms maintained between +10 °C and +35 °C, with relative humidity ≤80% RH non-condensing and adequate ventilation to dissipate compressor heat exhaust.
Can the chamber be calibrated to ISO/IEC 17025 standards?
Yes—DRETOP provides factory calibration certificates traceable to NIM (National Institute of Metrology, China); third-party accredited labs may perform on-site verification using NIST-traceable PT100 probes at user-defined sensor locations.
Is remote firmware update supported over the cloud interface?
Firmware updates are delivered via encrypted OTA (Over-The-Air) packages through the CloudLink portal; updates require administrator authentication and initiate only during idle periods to prevent test interruption.
Does the system support custom alarm escalation protocols (e.g., email/SMS notifications)?
Native alerting is limited to on-device audio/visual signals; external notification integration requires connection to a user-supplied SCADA or building management system (BMS) via Modbus TCP or SNMP.
What maintenance schedule is recommended for optimal long-term performance?
Compressor oil inspection every 24 months, condenser coil cleaning quarterly, and annual verification of door seal compression force and thermal insulation integrity per ASTM C518.