HAIDA HD-E705 Walk-in Temperature and Humidity Environmental Test Chamber
| Brand | HAIDA INTERNATIONAL |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | HAIDA HD-E705 Walk-in Temperature and Humidity Environmental Test Chamber |
| Temperature Range | -70°C to +80°C (three standard configurations: T-model: -20°C to +80°C |
| F-model | -40°C to +80°C |
| S-model | -70°C to +80°C) |
| Humidity Range | 20–98% RH |
| Temperature Deviation | ±1.5°C |
| Temperature Uniformity | ≤2°C |
| Temperature Fluctuation | ±0.5°C |
| Humidity Deviation | ±2% RH |
| Humidity Uniformity | ≤3% RH |
| Humidity Fluctuation | ±2% RH |
| Ramp Rates (empty load) | +25°C → +80°C ≤35 min |
| Internal Chamber Volume Options | 4 m³, 8 m³, 10 m³, 15 m³, 20 m³, 25 m³, 30 m³, 40 m³ (custom volumes available) |
| Construction | Modular prefabricated panels with SUS304 stainless steel interior and color-coated galvanized steel exterior |
| Insulation | 100 mm rigid polyurethane foam (thermal conductivity ≤0.022 W/m·K) |
| Door | Dual-opening, 1500 mm × 2200 mm clear aperture, reinforced hinges, Japanese locking mechanism with anti-jamming function |
| Viewing Windows | Two 300 mm × 450 mm conductive anti-fog tempered glass windows with ITO coating |
| Test Port | One Φ100 mm port (position customizable) |
| Control System | TEMI2700 7.5″ color TFT touchscreen controller (SAMWON, Korea), supporting multi-segment programmable profiles (max 120 programs, 1200 segments), RS-232/RS-485 interface, SD card data logging (2 GB standard, upgradable to 4 GB), Ethernet-ready for remote monitoring and synchronized multi-chamber control |
| Safety Systems | Dual-stage overtemperature protection, compressor high/low pressure cut-off, PT100-based real-time thermal monitoring, leak-tested refrigerant circuit (22 bar test pressure), R404A/R23 eco-friendly refrigerant blend |
| Compliance | GB/T 2423.1–2008 (Cold), GB/T 2423.2–2008 (Heat), GB/T 2423.3–2008 / IEC 60068-2-3 (Steady-state Damp Heat), GB/T 2423.4–2008 / IEC 60068-2-30 (Cyclic Damp Heat), GJB 150.3A–2009 / 150.4A–2009 / 150.9A–2009, GB/T 10586–2006, GB/T 10589–2008, GB/T 5170.18–2005 |
Overview
The HAIDA HD-E705 Walk-in Temperature and Humidity Environmental Test Chamber is an engineered solution for large-scale, high-fidelity environmental simulation in industrial R&D, quality assurance, and compliance validation. Designed according to fundamental principles of psychrometric control and forced-air convective heat transfer, the chamber maintains precise, stable, and uniform climatic conditions across volumetric test spaces ranging from 4 m³ to 40 m³. Its dual-stage cascade refrigeration system—comprising independent high-temperature (R404A) and low-temperature (R23) circuits—enables rapid thermal transitions while sustaining operational integrity at extreme setpoints (down to –70°C and up to +80°C). Humidity control is achieved via a dedicated external steam generator with PID-regulated PTC heating elements and a closed-loop water recovery system incorporating triple-stage filtration. All thermodynamic and hygrometric performance metrics—including temperature deviation (±1.5°C), humidity deviation (±2% RH), and spatial uniformity (≤2°C / ≤3% RH)—are validated under ISO/IEC 17025-aligned calibration protocols and verified per GB/T 5170.18–2005 for combined temperature/humidity cycling equipment.
Key Features
- Modular structural architecture: Prefabricated, bolt-together panels with 100 mm thick rigid polyurethane insulation (λ ≤ 0.022 W/m·K), enabling on-site reconfiguration, disassembly, and relocation without compromising thermal integrity.
- Dual-access door system: 1500 mm × 2200 mm clear opening with lever-actuated Japanese latching mechanism, integrated anti-jamming design, and reinforced stainless-steel hinges rated for ≥100,000 cycles.
- Optimized air distribution: Top-mounted axial circulation fans (SUS304 impellers) deliver ≥1.8 m/s airflow velocity through calibrated diffusers, ensuring ≤2°C temperature gradient and ≤3% RH gradient across full working volume.
- Corrosion-resistant construction: Interior surfaces fabricated from 0.8 mm SUS304 stainless steel; exterior cladding uses pre-painted galvanized steel with zinc coating ≥120 g/m²; floor structure supports uniform static loads up to 600 kg/m².
- Redundant safety architecture: Independent overtemperature cutoffs (mechanical and electronic), compressor oil-pressure monitoring, high/low refrigerant pressure interlocks, dry-run protection for humidifiers, and grounded chassis (<4 Ω earth resistance).
- Intelligent control ecosystem: TEMI2700 controller with 7.5″ capacitive touchscreen, real-time PV/SV display, 120-program memory (1200 total segments), programmable ramp/soak logic, and built-in audit trail functionality compliant with GLP/GMP documentation requirements.
Sample Compatibility & Compliance
The HAIDA HD-E705 is certified for non-hazardous, non-biological, non-corrosive, and non-electromagnetically emissive test specimens only. It strictly prohibits testing of flammable, explosive, volatile organic compounds (VOCs), or materials emitting strong acids/bases. Chamber operation adheres to internationally recognized environmental test standards including IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-3 (damp heat, steady-state), and IEC 60068-2-30 (damp heat, cyclic). Additional compliance includes MIL-STD-810G Method 502.6 (low temperature), Method 503.5 (temperature shock), and Method 507.6 (humidity), as well as automotive OEM specifications such as GMW16275 and Ford CETP 00.00-L-467. All factory calibrations are traceable to NIM (National Institute of Metrology, China) and documented per ISO/IEC 17025 requirements.
Software & Data Management
The TEMI2700 controller supports full-cycle data acquisition at user-defined intervals (1–600 seconds), storing time-stamped temperature/humidity values in non-volatile RAM with battery backup (retention ≥72 hours). Raw datasets are exportable via SD card (2 GB standard, expandable to 4 GB) in CSV format for post-processing in MATLAB, Excel, or LIMS platforms. Optional Ethernet integration enables remote access using HAIDA’s proprietary WebHMI software—supporting real-time parameter adjustment, multi-chamber synchronization, alarm push notifications (email/SMS), and secure role-based authentication (admin/operator/viewer tiers). Audit trails log all critical events—including setpoint changes, program starts/stops, fault triggers, and user logins—with timestamps, IP addresses, and digital signatures satisfying FDA 21 CFR Part 11 electronic record requirements.
Applications
The HD-E705 serves as a primary validation platform for accelerated life testing, qualification screening, and production lot verification across aerospace, defense electronics, semiconductor packaging, automotive ECUs, and medical device manufacturing. Typical use cases include: thermal cycling of PCB assemblies per IPC-9701; humidity soak testing of conformal-coated sensors per MIL-PRF-55342; storage stability assessment of lithium-ion battery modules under IEC 62660-2; preconditioning of optical coatings prior to laser damage threshold measurement (ISO 21254); and environmental stress screening (ESS) of avionics subsystems per RTCA/DO-160 Section 4. Its large internal volume accommodates full-size enclosures, vehicle ECUs, server racks, and multi-unit production batches—eliminating scaling artifacts inherent in benchtop chambers. The system is routinely deployed in ISO 17025-accredited labs for third-party certification against UL 60950-1, IEC 61000-4-2, and EN 60068-2 series standards.
FAQ
What is the minimum ambient installation temperature for reliable operation?
The chamber requires ambient conditions between +5°C and +35°C during active operation. For long-term shutdown below 0°C, residual water must be fully drained from the humidifier and condensate lines to prevent freeze-induced damage.
Can the chamber operate continuously at –70°C with 20% RH?
Yes—continuous operation at the extreme low-temperature, low-humidity boundary is supported by the cascade refrigeration architecture and desiccant-assisted dehumidification mode, verified per GJB 150.4A–2009 Annex B.
Is remote firmware update capability available?
Firmware updates are performed locally via USB or SD card; remote updates are disabled by default to maintain cybersecurity integrity and regulatory compliance with IEC 62443-3-3.
Does the system support 21 CFR Part 11-compliant electronic signatures?
Yes—the TEMI2700 controller implements role-based access control, biometric-equivalent password policies (minimum 8 characters, alphanumeric + symbol, 90-day expiry), and immutable audit logs meeting ALCOA+ data integrity principles.
What maintenance intervals are recommended for the refrigeration system?
Compressor oil analysis and filter replacement every 2,000 operating hours; annual leak inspection using helium mass spectrometry; quarterly calibration of PT100 sensors against NIST-traceable references.
