HAIDA HD-E702-225K40/60 Programmable Temperature and Humidity Environmental Test Chamber

Overview

The HAIDA HD-E702-225K40/60 Programmable Temperature and Humidity Environmental Test Chamber is an engineered precision instrument designed for accelerated environmental stress testing of materials, components, and finished products under rigorously controlled thermal and hygrothermal conditions. Based on the principle of forced-air convection with dual-circuit refrigeration and independent heating/humidification systems, it replicates real-world transport, storage, and operational environments—including extreme cold, high-temperature exposure, and cyclic humidity variations—to assess product reliability, degradation mechanisms, and functional integrity. The chamber complies with internationally recognized test standards including IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-3 (damp heat, steady state), and MIL-STD-810G Method 502.6 (low temperature) and Method 507.5 (humidity). Its robust architecture supports qualification testing in electronics, automotive electronics, aerospace composites, polymer packaging, medical device housings, and battery modules—where reproducible, auditable environmental profiles are essential for design validation and regulatory submissions.

Key Features

• High-Fidelity Thermal-Hygrometric Control: Dual-stage refrigeration system (R404a/R23) enables stable operation across −60 °C to +150 °C, with temperature deviation ≤±0.5 °C and humidity deviation ≤±2% RH at 25–85% RH range; P.I.D. + S.S.R. coordinated control ensures dynamic response to setpoint changes.
• Corrosion-Resistant Construction: Interior chamber fabricated from 1.0 mm SUS304 stainless steel; exterior from electrostatically painted cold-rolled steel (1.0 mm); double-layer vacuum-insulated observation window with conductive film anti-fogging.
• Intelligent Programmable Controller: 7-inch full-color TFT touchscreen interface supporting up to 120 user-defined test programs (each with up to 99 segments, totaling 1200 segments); real-time graphical curve display; multi-language UI (English/Chinese); USB/SD card data logging with timestamped PV/SV traces.
• Independent Conditioning Systems: Nickel-chromium alloy heating elements (fast-response, high-stability); stainless-steel tubular humidifier with MgO-insulated heater and auto-refill reservoir; isolated steam generation prevents water contamination of test samples.
• Structural Integrity & Safety: Explosion-proof door handle; silicone gasket sealing rated for continuous operation at −60 °C and +150 °C; over-temperature, over-humidity, phase-loss, compressor overpressure, fan overheat, and leakage current protection with automatic shutdown and fault code display.
• Test Flexibility: Standard Φ50 mm cable/port access with thermal insulation collar; two adjustable SUS304 sample racks (≥20 kg uniform load capacity); optional mounting brackets and customized port configurations available upon request.

Sample Compatibility & Compliance

The HD-E702-225K40/60 accommodates a wide range of physical samples—from PCB assemblies and lithium-ion pouch cells to polymer films, coated metal substrates, and sealed electronic enclosures—within its 225 L working volume (500 × 750 × 600 mm W×H×D). Its internal airflow design ensures uniform distribution of temperature and humidity per IEC 60068-3-5 and ASTM E145 Class B requirements. All electrical components meet CE marking directives (EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU), and firmware supports audit-ready data traceability per GLP/GMP guidelines. While not FDA 21 CFR Part 11–certified out-of-the-box, the system’s password-protected user levels, electronic signature-capable software logs, and immutable SD card records provide a foundation for validation in regulated life science or pharmaceutical packaging applications.

Software & Data Management

Control firmware includes built-in data acquisition and reporting capabilities compliant with ISO/IEC 17025 documentation expectations. Real-time temperature and humidity values (PV/SV) are logged at user-selectable intervals (1 s to 60 min) onto internal 2 GB SD memory, with optional expansion via USB flash drive. Export formats include CSV and PDF reports containing test ID, operator name, start/end timestamps, program segment history, and deviation alerts. RS232/RS485 interfaces support integration into centralized lab monitoring networks using Modbus RTU protocol. Optional PC-based software (Windows 10/11 compatible) enables remote supervision, multi-chamber synchronization, statistical process control (SPC) charting, and automated report generation aligned with ISO 9001 quality management workflows.

Applications

• Accelerated aging of polymer-based medical device packaging per ISO 11607-1
• Thermal cycling qualification of automotive ECUs per AEC-Q200 Rev D
• Damp heat stress testing of photovoltaic module backsheets per IEC 61215-2 MQT 11
• Environmental screening of aerospace fasteners and composite laminates per SAE AMS 2750E
• Moisture absorption/desorption kinetics studies for hygroscopic ceramics and battery separator membranes
• Storage condition simulation for pharmaceutical excipients per USP <659>
• Pre-conditioning of sensors and MEMS devices prior to calibration or burn-in

FAQ

What is the difference between the K40 and K60 variants?
The HD-E702-225K40 operates down to −40 °C, while the K60 variant extends the low-temperature limit to −60 °C via a two-stage cascade refrigeration system incorporating R23 secondary refrigerant.
Does the chamber support automated test sequencing across multiple environmental profiles?
Yes—its programmable controller allows chaining of up to 120 distinct programs, with inter-program transitions triggered by time, event, or manual override; each program supports ramp-soak-hold cycles with slope-defined gradients.
Can humidity be maintained independently of temperature during a test?
Yes—the heating, cooling, and humidification subsystems operate autonomously under closed-loop PID regulation, enabling precise decoupled control—for example, holding 85% RH at 85 °C (85/85 test) or 40% RH at −40 °C.
Is the controller compliant with 21 CFR Part 11 for electronic records?
The base unit provides ALCOA+ data integrity features (audit trail, electronic signatures, role-based access); formal Part 11 compliance requires site-specific IQ/OQ/PQ validation and supplemental software configuration.
What maintenance intervals are recommended for long-term reliability?
Compressor oil and refrigerant levels should be verified annually; desiccant in the dryer filter replaced every 18 months; PT100 sensor calibration certified biannually; door gasket inspection performed quarterly.