HAIDA HD-E702-225B60 Programmable Temperature and Humidity Environmental Test Chamber

Overview

The HAIDA HD-E702-225B60 Programmable Temperature and Humidity Environmental Test Chamber is an engineered precision platform for accelerated environmental stress testing of materials, components, and finished products across aerospace, automotive, electronics, and advanced materials sectors. It operates on the principle of controlled thermodynamic conditioning—using dual-stage refrigeration, high-efficiency resistive heating, and isolated steam-based humidification—to replicate real-world transport, storage, and operational environments with high fidelity. The chamber supports both steady-state (constant) and dynamic (cyclic) test profiles, enabling compliance verification against internationally recognized environmental stress screening (ESS) and reliability qualification standards—including MIL-STD-810, IEC 60068, and ISO 16750. Its robust thermal architecture ensures stable, repeatable performance across extreme conditions: from cryogenic −60 °C to high-temperature +150 °C, and humidity levels spanning 20–98% RH.

Key Features

• Structural Integrity: Interior and exterior chambers constructed from 1.0 mm SUS304 stainless steel—resistant to corrosion, oxidation, and chemical exposure; double-layer vacuum-insulated observation window with integrated conductive film for anti-fogging at sub-zero or high-humidity conditions.
• Thermal Management: Dual-compressor mechanical refrigeration system (2 × 3 HP Tecumseh/Tecumseh-derived compressors) using environmentally compliant R404A/R23 blended refrigerant; optimized fin-tube evaporator and brazed-plate heat exchanger for rapid thermal response and long-term stability.
• Humidity Control: Stainless-steel immersion heater-based steam generator with automatic water replenishment; isolation design prevents condensate contamination and ensures precise RH regulation without drift.
• Intelligent Control System: 7-inch full-color TFT touchscreen controller (Yudian brand) supporting up to 120 user-defined programs, each comprising up to 99 segments; PID + fuzzy logic auto-tuning for simultaneous temperature/humidity coordination; 0.01 °C / 0.1% RH resolution with real-time deviation compensation.
• Operational Safety & Reliability: Comprehensive protection suite including over-temperature cutoff, phase-loss/phase-reversal detection, compressor high-pressure/overload safeguards, fan overheat monitoring, leakage current protection, and programmable timed shutdown—all triggering automatic fault logging and emergency halt.
• Connectivity & Data Traceability: Standard RS-232/RS-485 interface plus USB port for SD card-based data export (2 GB pre-installed); compatible with Windows-based data acquisition software for time-stamped curve plotting, audit-ready reporting, and GLP/GMP-aligned record retention.

Sample Compatibility & Compliance

The HD-E702-225B60 accommodates diverse sample geometries via adjustable SUS304 wire mesh shelves (standard: 2 shelves, load capacity ≥20 kg per shelf, uniformly distributed). A 50 mm diameter through-wall test port enables external sensor integration or power feedthrough while maintaining chamber integrity. The unit meets structural and performance requirements of multiple international test standards—including GB/T 2423.1–2008 (cold), GB/T 2423.2–2008 (dry heat), GB/T 2423.3–2016 (damp heat, steady state), GB/T 2423.22–2008 (temperature shock), GJB 150.3A–2009 (low temperature), and GJB 150.4A–2009 (high temperature). Its control algorithm and hardware architecture support validation under FDA 21 CFR Part 11-compliant workflows when paired with appropriate electronic signature and audit trail configurations.

Software & Data Management

The embedded controller firmware supports full-cycle test documentation: real-time PV/SV display, segment-wise runtime tracking, cumulative cycle counting, and graphical overlay of multi-parameter trends. All logged data—including timestamped temperature, humidity, alarm events, and program status—is stored in non-volatile memory and exportable via USB to CSV or proprietary binary formats. Optional PC software provides post-test analysis tools: deviation mapping, pass/fail threshold overlays, statistical process control (SPC) charts, and PDF report generation with digital signature fields. Data integrity is preserved through cyclic redundancy check (CRC) validation and write-protected archival modes—essential for quality assurance departments operating under ISO/IEC 17025 or IATF 16949 frameworks.

Applications

• Accelerated life testing of printed circuit boards (PCBs), connectors, and encapsulated semiconductors under combined thermal-hygric stress.
• Validation of polymer degradation kinetics, coating adhesion loss, and sealant performance in automotive under-hood simulations.
• Qualification of battery cell thermal runaway behavior across wide ambient ranges (e.g., EV traction battery modules).
• Pre-conditioning of optical sensors and MEMS devices prior to functional calibration.
• Environmental screening of medical device packaging per ISO 11607–2 to assess barrier integrity under accelerated aging protocols.
• Material compatibility testing for aerospace composites exposed to tropical or arctic operational envelopes.

FAQ

What is the maximum allowable sample volume inside the working chamber?
The internal workspace measures 500 mm (W) × 750 mm (H) × 600 mm (D), yielding a nominal volume of 225 L. For optimal airflow uniformity and thermal/humidity homogeneity, samples should occupy no more than 30% of total chamber volume and be positioned to avoid obstruction of air inlets or exhaust grilles.

Can this chamber perform temperature-humidity cycling per IEC 60068-2-30?
Yes—the controller supports programmable ramp-and-soak profiles with independent slope definition for temperature and humidity axes, enabling full implementation of Test Db (damp heat, cyclic) and related variants.

Is the controller compliant with FDA 21 CFR Part 11 for electronic records?
While the base controller does not include built-in electronic signatures or role-based access control, its data export architecture supports integration into validated LIMS or ELN systems that provide Part 11 compliance—including audit trails, user authentication, and record retention policies.

What maintenance intervals are recommended for long-term reliability?
Compressor oil and refrigerant levels should be verified annually; desiccant filters replaced every 18 months; door gasket integrity inspected quarterly; and calibration of PT100 sensors performed biannually using NIST-traceable reference standards.

Does the unit support remote monitoring via Ethernet or cloud platforms?
The standard configuration includes only RS-232/485 and USB interfaces. Ethernet or MQTT-based remote supervision requires optional gateway hardware and middleware integration—not provided as factory default.