Sichuan Compact Programmable Temperature and Humidity Chamber

Overview

The Sichuan Compact Programmable Temperature and Humidity Chamber is an engineered environmental test system designed for precise simulation of dynamic and static climatic conditions in laboratory and quality assurance settings. Based on the principle of forced-air convection combined with dual-stage refrigeration and PID-controlled steam humidification, this chamber delivers reproducible thermal and hygrothermal profiles essential for evaluating material stability, component reliability, and product endurance under defined stress conditions. It complies with internationally recognized environmental testing standards including IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), IEC 60068-2-78 (Steady-State Damp Heat), and IEC 60068-2-30 (Cyclic Damp Heat), as well as corresponding national standards GB/T 2423.1–2001, GB/T 2423.2–2001, and GB/T 2423.4–1993. Its compact footprint and modular configuration make it especially suitable for space-constrained R&D labs, QC departments, and electronics manufacturing facilities requiring frequent, repeatable environmental qualification.

Key Features

• Microprocessor-based color touchscreen controller with intuitive interface and bilingual (English/Chinese) language switching capability
• Full-sealed, low-noise, high-efficiency dual-stage refrigeration system using environmentally compliant refrigerants R404A and R23
• Double-layer high-tensile silicone rubber door gasket ensuring long-term airtightness and thermal integrity at extreme temperature extremes
• Interior and exterior chamber walls constructed from electropolished SUS#304 stainless steel for corrosion resistance and cleanroom compatibility
• Multi-layer laminated tempered observation window with embedded conductive film—enabling clear visual monitoring while preventing condensation-induced fogging
• Integrated safety architecture featuring real-time fault diagnostics, automatic power cutoff, over-temperature/over-humidity protection, and compressor overload safeguards
• Standard Ø50 mm test port on left side wall for external signal or power line routing without compromising chamber integrity
• Adjustable stainless steel shelves (2-tier standard), leveling casters (4), and adjustable leveling feet (4) for operational flexibility and stability

Sample Compatibility & Compliance

This chamber accommodates a broad spectrum of test specimens—from printed circuit boards (PCBs), semiconductor packages, and polymer films to automotive sensors, aerospace fasteners, and pharmaceutical packaging materials. Its uniform temperature and humidity distribution (±0.5°C / ±2.5% RH) meets the spatial homogeneity requirements specified in ISO 17025-accredited calibration protocols. The unit supports full traceability through configurable logging intervals and is compatible with GLP/GMP-aligned workflows when paired with validated data export routines. While not pre-certified for FDA 21 CFR Part 11 compliance, its controller supports audit-trail-enabling firmware upgrades and timestamped event logging—facilitating integration into regulated environments upon site-specific validation.

Software & Data Management

The embedded controller provides local data acquisition with up to 100 programmable test profiles, each supporting multi-step ramp-soak cycles, humidity modulation, and conditional branching logic. Real-time trend graphs for temperature and relative humidity are displayed on-screen with adjustable scaling and overlay options. Data can be exported via USB 2.0 to CSV format for post-processing in MATLAB, Excel, or LIMS platforms. Optional RS485/Modbus RTU communication enables remote supervision via SCADA systems or centralized lab management software. All setpoints, alarms, and operational events are time-stamped and stored internally for ≥30 days—supporting root-cause analysis and internal audit readiness.

Applications

• Accelerated aging studies of polymeric encapsulants and conformal coatings under combined thermal-hygric stress
• Qualification testing of automotive ECUs per ISO 16750-4 and AEC-Q200 requirements
• Reliability screening of consumer electronics prior to field deployment
• Stability assessment of medical device packaging under ICH Q1A(R2) climatic zone conditions
• Material coefficient of thermal expansion (CTE) characterization via controlled dimensional metrology
• Validation of solder paste shelf-life and reflow profile robustness

FAQ

What temperature and humidity ranges are standard across all models?

Standard configurations support -20°C to +150°C and 20–98% RH; extended low-temperature variants (-40°C and -70°C) and wide-humidity options (5–98% RH) are available as factory-configured options.

Is the chamber suitable for continuous operation in a Class 10,000 cleanroom?

Yes—the SUS#304 construction, zero-oil refrigeration design, and absence of internal paint or adhesives meet particulate generation thresholds for ISO 14644-1 Class 7 environments when installed with appropriate air filtration and exhaust management.

Can test data be exported in formats compliant with ISO/IEC 17025 documentation requirements?

CSV exports include column headers, timestamps, measurement units, and controller serial identification—enabling direct import into accredited calibration records and uncertainty budgeting tools.

Does the unit include built-in validation support for IQ/OQ protocols?

While no formal IQ/OQ documents are supplied, the chamber ships with a factory calibration certificate (traceable to NIST-equivalent standards), sensor accuracy specifications, and a comprehensive technical manual containing installation, operational, and preventive maintenance procedures required for user-executed qualification.

What is the expected service life of the refrigeration system under typical lab usage?

With scheduled biannual maintenance—including refrigerant pressure verification, condenser coil cleaning, and desiccant replacement—the dual-stage compressor system maintains rated performance for ≥12,000 operating hours (approximately 5 years at 6 h/day, 5 days/week).