HAIDA HD-E702-150K40/60 Programmable Temperature and Humidity Environmental Test Chamber

Overview

The HAIDA HD-E702-150K40/60 is a benchtop programmable environmental test chamber engineered for precise, repeatable simulation of temperature and humidity stress conditions across industrial R&D, quality assurance, and compliance validation workflows. It operates on the principle of active thermal-hygrometric control via dual independent systems—separate high-efficiency heating and refrigeration circuits coupled with a stainless-steel immersion-type humidifier—enabling stable, traceable conditioning across a wide operational envelope: −60 °C to +150 °C and 20–98% RH. Designed for accelerated life testing, environmental screening, and reliability qualification, the chamber supports both steady-state (constant) and dynamic (cycling) profiles per IEC 60068-2, MIL-STD-810, and GB/T 2423 series standards. Its compact interior volume (150 L) and optimized airflow architecture ensure uniform thermal distribution (≤2 °C deviation) and low-latency response—critical for evaluating material degradation, seal integrity, solder joint fatigue, and electronic component drift under combined thermal and moisture stress.

Key Features

• Robust Dual-Circuit Refrigeration System: Equipped with two imported Tecumseh (France) hermetic compressors and a mechanical two-stage cascade design using environmentally compliant R404a/R23 refrigerant blends, enabling reliable operation down to −60 °C without cryogenic consumables.
• Precision Climate Control Architecture: PID + SSR coordinated control algorithm with auto-tuning capability; temperature resolution 0.01 °C, humidity resolution 0.1% RH; real-time compensation for load-induced thermal lag.
• Corrosion-Resistant Chamber Construction: Interior chamber fabricated from 1.0 mm SUS304 stainless steel; exterior housing in electrostatically coated cold-rolled steel (1.0 mm); double-layer vacuum-insulated observation window with conductive film defrosting.
• Modular Sample Handling: Two adjustable SUS304 wire mesh shelves (≥20 kg uniform load capacity); Φ50 mm sealed test port with thermal insulation collar and silicone plug; optional cable feedthrough kits available.
• Intelligent Controller Interface: 7-inch full-color TFT touchscreen with bilingual (English/Chinese) UI; supports up to 120 programs, 1200 segments, and 999-cycle looping; built-in SD card logging (2 GB standard, expandable) with timestamped CSV export.
• Comprehensive Safety & Redundancy: Multi-level protection including compressor high-pressure cut-off, over-temperature alarm (independent sensor), phase failure detection, motor overheat monitoring, leak current interruption, and automatic shutdown on critical fault.

Sample Compatibility & Compliance

The HD-E702-150K40/60 accommodates a broad spectrum of physical specimens—including PCB assemblies, polymer enclosures, lithium-ion battery cells, optical sensors, automotive ECUs, aerospace fasteners, and pharmaceutical packaging—without compromising thermal or hygrometric fidelity. Its internal dimensions (500 × 600 × 500 mm) allow vertical or horizontal orientation of mid-sized devices while maintaining required air velocity profiles (>1.5 m/s at sample zone). The chamber meets essential regulatory and industry-standard requirements for environmental stress screening, including GB/T 2423.1–2008 (cold), GB/T 2423.2–2008 (dry heat), GB/T 2423.3–2016 (damp heat, cyclic), IEC 60068-2-1/2/30, MIL-STD-810H Method 502.7/507.6, and GJB 150.3A–2009 / 150.4A–2009. All control logic and data acquisition pathways are designed to support GLP/GMP-aligned audit trails when integrated with external validation software (e.g., IQ/OQ/PQ documentation packages).

Software & Data Management

Data integrity and traceability are ensured through native controller functionality and standardized communication protocols. Real-time temperature/humidity curves, program execution status, and alarm logs are stored locally on the embedded SD card with microsecond-level timestamping. USB 2.0 host interface enables direct transfer of .CSV-formatted datasets to Windows-based analysis tools (Windows 10/11 compatible). Optional RS-232/RS-485 serial output supports integration into centralized lab management systems (LIMS) or SCADA platforms for remote supervision and automated reporting. The controller firmware complies with basic principles of FDA 21 CFR Part 11 regarding electronic records—user authentication, audit trail generation, and non-erasable event logging are implemented at the firmware level. Exported data includes absolute time stamps, setpoint vs. actual deviation, segment transition markers, and fault code history—enabling full reconstruction of test conditions during regulatory review.

Applications

• Accelerated aging studies of elastomers, adhesives, and conformal coatings under thermal-hygric cycling
• Qualification testing of consumer electronics per JEDEC JESD22-A104 (temperature cycling) and JESD22-A108 (biased HAST)
• Validation of moisture barrier performance in flexible OLED encapsulation and medical device packaging
• Thermal shock pre-conditioning prior to HALT/HASS vibration testing
• Stability assessment of lithium-ion battery modules under combined low-temperature discharge and high-RH storage
• Environmental stress screening (ESS) of avionics hardware per DO-160 Section 4/5/6
• Material compatibility testing of lubricants, gaskets, and optical lens cements

FAQ

What is the maximum allowable sample mass without compromising chamber performance?
The chamber is rated for uniform loading up to 20 kg distributed across both shelves. Exceeding this limit may affect airflow uniformity and extend stabilization time beyond specified tolerances.
Can the chamber operate continuously at −60 °C and 95% RH simultaneously?
No. At extreme low temperatures, condensation risk and refrigeration system efficiency constraints limit practical humidity range. Operation below 0 °C is recommended at ≤50% RH for long-term stability.
Is third-party calibration certification available?
Yes—NIST-traceable calibration reports (per ISO/IEC 17025) can be provided upon request, covering PT100 sensor verification, temperature uniformity mapping, and humidity accuracy validation at three points (25/60/90% RH).
Does the controller support custom script-based sequencing beyond standard profile programming?
The native interface does not support external scripting (e.g., Python/LabVIEW), but RS-485 Modbus RTU protocol enables full parameter read/write access for integration with external automation frameworks.
What maintenance intervals are recommended for optimal long-term repeatability?
Compressor oil and refrigerant levels should be verified annually; desiccant in the dryer filter replaced every 18 months; chamber seals inspected quarterly for compression set; and PT100 sensors calibrated biannually against reference standards.