Haida HD-E702-225K40/60 Programmable Temperature and Humidity Chamber

Overview

The Haida HD-E702-225K40/60 Programmable Temperature and Humidity Chamber is an engineered environmental simulation system designed for rigorous reliability testing of materials, components, and finished products under controlled thermal and hygrothermal stress conditions. It operates on the principle of precise thermodynamic regulation—utilizing dual-circuit refrigeration architecture, high-efficiency resistive heating, and isolated stainless-steel steam humidification—to maintain stable, repeatable, and traceable test environments across a wide operational envelope (−60 °C to +150 °C; 20–98% RH). The chamber is purpose-built for accelerated life testing, qualification validation, and compliance verification in industries including aerospace, automotive electronics, semiconductor packaging, medical device manufacturing, and advanced polymer development. Its structural design adheres to fundamental principles of thermal isolation, condensation management, and mechanical stability—ensuring minimal thermal bridging, consistent humidity distribution, and long-term calibration integrity.

Key Features

• Robust Dual-Circuit Refrigeration System: Equipped with two imported Tecumseh (France) hermetic compressors and environmentally compliant refrigerants (R404a/R23), enabling reliable operation across extreme low-temperature zones without single-point failure risk.
• Precision Climate Control Architecture: Integrated PID + Fuzzy logic control algorithm with PT100 platinum RTD sensors ensures real-time correction of thermal and moisture drift—achieving temperature deviation ≤±0.5 °C and humidity deviation ≤±2% RH under steady-state and dynamic ramp conditions.
• Thermally Optimized Chamber Construction: Interior chamber fabricated from 1.0 mm SUS304 stainless steel; exterior from electrostatically coated cold-rolled steel; insulation comprises 100 mm polyurethane foam + 100 mm high-density glass fiber—reducing heat transfer coefficient to <0.25 W/m²·K.
• Human-Centric Operational Interface: 7-inch full-color TFT touchscreen controller supports bilingual (English/Chinese) operation, programmable multi-segment profiles (up to 120 programs, 1200 segments), and real-time graphical curve display—including slope-defined ramp/soak transitions and inter-program linking.
• Comprehensive Data Integrity Framework: Onboard 2GB SD card logging at user-configurable intervals (1s–600s); USB mass storage export; RS232/RS485 serial interface compatible with LabVIEW, MATLAB, and SCADA platforms; optional audit trail configuration supports GLP/GMP-aligned data governance.
• Fail-Safe Protection Suite: Redundant safety layers include over-temperature cutoff, compressor high-pressure shutdown, phase-loss/phase-reversal detection, fan overheat protection, leakage current interruption, and automatic fault-triggered power-off with event-stamped error codes.

Sample Compatibility & Compliance

The HD-E702-225K40/60 accommodates test specimens up to 20 kg uniformly distributed across two adjustable SUS304 wire mesh shelves. A standardized Φ50 mm pass-through port—fitted with insulated silicone grommet and thermal break collar—enables external sensor integration or power feedthrough without compromising chamber integrity. Dual-pane vacuum-insulated observation window with ITO-coated defrosting film ensures unobstructed visual monitoring during cryogenic or high-humidity cycles. The chamber conforms to multiple international and national environmental test standards, including IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-3 (damp heat, cyclic), MIL-STD-810G Method 502.6, and GJB 150.3A–2009 (low temperature) and GJB 150.4A–2009 (high temperature). All thermal and humidity performance specifications are validated per ISO/IEC 17025-accredited procedures using NIST-traceable reference sensors.

Software & Data Management

The embedded controller firmware supports full-cycle data acquisition with timestamped temperature/humidity values stored in CSV format. Exported datasets retain native resolution (0.01 °C temperature, 0.1% RH humidity) and include metadata such as program ID, segment number, elapsed time, and alarm history. Optional PC-based software enables remote monitoring, multi-chamber fleet synchronization, statistical process control (SPC) charting, and automated report generation compliant with FDA 21 CFR Part 11 requirements—including electronic signatures, audit trails, and role-based access control. Data encryption (AES-128) and write-protection modes are configurable to meet ISO 27001 information security guidelines.

Applications

• Accelerated aging of lithium-ion battery cells under thermal cycling (−40 °C ↔ +85 °C) and humidity soak (85% RH, 85 °C).
• Qualification testing of automotive ECUs per ISO 16750-4 for resistance to condensation-induced corrosion.
• Moisture sensitivity level (MSL) evaluation of surface-mount devices per JEDEC J-STD-020.
• Stability assessment of pharmaceutical packaging under ICH Q1A(R2) long-term and accelerated storage conditions.
• Thermal shock validation of aerospace composite laminates using programmable ramp rates (≥3 °C/min) and dwell stabilization.
• Reliability screening of optical coatings and MEMS sensors subjected to combined thermal-hygric stress.

FAQ

What is the maximum allowable sample load weight per shelf?
The standard configuration includes two adjustable shelves rated for uniform loading up to 20 kg total—not per shelf. Load distribution must remain balanced to avoid airflow obstruction and thermal gradient formation.
Does the chamber support validation documentation for IQ/OQ/PQ protocols?
Yes—factory-supplied calibration certificates (traceable to CNAS-accredited labs), as-built drawings, FAT/SAT reports, and URS-compliant functional specifications are available upon request.
Can the controller be configured for 21 CFR Part 11 compliance?
With optional firmware upgrade and administrator-level setup, the system supports electronic signatures, immutable audit logs, and password-protected user roles meeting FDA regulatory expectations.
Is remote firmware update capability supported?
Firmware updates require local USB media injection; however, diagnostic telemetry and real-time parameter monitoring are accessible via RS485 Modbus RTU or optional Ethernet gateway module.
What maintenance intervals are recommended for the refrigeration system?
Compressor oil analysis and filter-drier replacement are advised every 24 months under continuous operation; annual inspection of condenser coil cleanliness and refrigerant charge verification is required per ISO 5149 maintenance guidelines.