English Product Name

Overview

The Custom-Built Walk-In Temperature and Humidity Controlled Chamber is an engineered environmental simulation system designed for long-duration, high-fidelity testing of materials, components, and finished products under precisely regulated thermal and hygroscopic conditions. Based on the principle of forced-air convection with dual independent refrigeration and steam-based humidification circuits, this chamber delivers stable, repeatable control across wide operational ranges—enabling accelerated aging, reliability validation, and qualification per international environmental test standards. Unlike benchtop units, its walk-in architecture supports large-scale test specimens—including automotive subassemblies, aerospace avionics enclosures, medical device packaging stacks, and full-size electronics racks—while maintaining ISO/IEC 17025-aligned measurement integrity throughout the working volume. The system operates under closed-loop PID control with real-time feedback from multiple platinum resistance thermometers (PT100) and capacitive humidity sensors calibrated traceably to NIST standards.

Key Features

• Modular walk-in construction with customizable internal dimensions (standard configurations start at W2000 × D1800 × H2200 mm; fully scalable upon request)
• Dual-stage cascade refrigeration system enabling sustained operation down to –120 °C without liquid nitrogen dependency
• Steam generator-based humidification with deionized water feed and automatic drain cycle to prevent mineral buildup
• TEMI880 programmable controller featuring 32-bit ARM core, 7-inch color touchscreen, USB data export, and Ethernet connectivity for remote monitoring
• Comprehensive safety architecture: over-temperature cut-off, humidity sensor fault detection, refrigerant pressure monitoring, door interlock, and emergency stop circuitry
• SUS304 stainless steel interior (electropolished finish option available) and corrosion-resistant external cladding compatible with cleanroom-grade installation
• Thermal insulation using 150 mm thick polyurethane foam (density ≥40 kg/m³) with zero ozone-depleting blowing agents (compliant with EU F-Gas Regulation)

Sample Compatibility & Compliance

This chamber accommodates heterogeneous sample loads—including non-uniform thermal mass, high surface-area-to-volume ratios, and moisture-permeable packaging—without compromising chamber stability, provided load does not exceed 30% of internal volume. It meets the physical performance criteria defined in IEC 60068-3-5 (environmental testing—guidance on temperature and humidity testing), IEC 60068-2-1 (cold tests), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat cyclic), and ASTM D4332 (conditioning containers for testing). Calibration and verification protocols align with ISO/IEC 17025 requirements, and optional factory-issued calibration certificates include uncertainty budgets per ILAC-P14. For regulated industries, the TEMI880 controller supports audit-trail-enabled operation compliant with FDA 21 CFR Part 11 when paired with validated network logging software.

Software & Data Management

The integrated TEMI880 controller supports up to 100 programmable test profiles, each with 99 segments and unlimited loop cycles. Real-time data logging records temperature, humidity, setpoints, alarm events, and system status at user-defined intervals (1 s to 60 min resolution). Export formats include CSV and PDF reports with embedded digital signatures. Optional PC-based software (ChamberLink Pro) enables centralized fleet management, multi-chamber synchronization, automated report generation per GLP templates, and integration with LIMS via OPC UA or Modbus TCP. All logged data retains immutable timestamps traceable to UTC via NTP server synchronization.

Applications

• Automotive: Validation of infotainment modules, battery management systems, and ADAS sensors under combined thermal-hygric stress
• Electronics: Burn-in testing of PCBAs, conformal coating durability assessment, and solder joint reliability screening
• Pharmaceuticals: Stability testing of primary packaging (blister packs, vials) per ICH Q1A(R3) guidelines
• Aerospace: Environmental qualification of avionics enclosures per DO-160 Section 4 and 5
• Materials Science: Hygrothermal aging of composites, polymers, and adhesives per ASTM D570 and ISO 62
• Renewables: Degradation analysis of photovoltaic module encapsulants under damp heat (IEC 61215-2 MQT 11)

FAQ

What is the typical lead time for a custom walk-in chamber?

Standard configurations ship within 12–14 weeks after order confirmation; fully customized builds (e.g., extreme low-temperature options or cleanroom-integrated variants) require 16–20 weeks due to component sourcing and factory acceptance testing.

Can the chamber be validated per IQ/OQ protocols?

Yes—factory-installed validation packages include Installation Qualification (IQ) documentation, Operational Qualification (OQ) test scripts, and as-built drawings. On-site Performance Qualification (PQ) support is available through certified field service engineers.

Is remote access and monitoring supported?

Ethernet-enabled TEMI880 controllers allow secure web-based monitoring via HTTPS. Full remote control—including profile upload, parameter adjustment, and alarm acknowledgment—is available with optional ChamberLink Pro license and firewall-compliant network configuration.

How is temperature/humidity uniformity verified across the working volume?

Uniformity mapping is performed during FAT using nine calibrated PT100 probes positioned per IEC 60068-3-5 Annex B. Results are documented in the final test report, confirming ≤±2 °C and ≤±3% RH deviation across all designated test zones.

Does the system comply with energy efficiency regulations?

Yes—the refrigeration system incorporates variable-speed compressors and intelligent defrost logic, achieving an Energy Efficiency Ratio (EER) of ≥2.8 kW/kW at 25 °C/60% RH, meeting EU Ecodesign Directive 2016/2281 requirements for environmental test equipment.