English Product Name

Overview

The Programmable Temperature and Humidity Environmental Test Chamber – Zero-Contamination Design is an engineered environmental simulation system for precise, repeatable evaluation of material and product behavior under controlled thermal and hygroscopic stress conditions. Based on dual-refrigeration cascade architecture and PID-driven humidity control via solid-state steam generator and desiccant-assisted drying, it delivers stable, contamination-free chamber atmospheres essential for high-sensitivity applications in aerospace component validation, semiconductor packaging reliability testing, pharmaceutical stability studies (ICH Q1A–Q1E), and advanced battery cell cycling. Unlike conventional chambers using lubricated compressors or non-inert internal finishes, this model integrates a fully sealed, oil-free refrigeration circuit and electropolished AISI 304 stainless steel interior surfaces—minimizing outgassing, particulate shedding, and volatile organic compound (VOC) emission. Its zero-contamination design meets stringent requirements for cleanroom-adjacent operation and supports ISO 14644-1 Class 5 compatibility when installed with HEPA-filtered air purge options.

Key Features

• Full-color 7-inch TFT touchscreen controller with real-time graphing, multi-segment programmability (up to 99 cycles × 99 steps), and automatic data logging (CSV export via USB)
• Dual-stage cascade refrigeration system using environmentally compliant R404A (high-temp stage) and R23 (low-temp stage), enabling reliable operation down to −70 °C without liquid nitrogen dependency
• Humidity generation via stainless steel steam generator with PID-controlled water reservoir; dehumidification via cold trap and regenerative desiccant wheel for rapid RH recovery
• Double-layer insulated observation window with embedded conductive ITO film—providing anti-fog functionality and electrostatic discharge (ESD)-safe viewing during live test monitoring
• Hermetic sealing achieved through dual-lip high-tensile silicone gasket system rated for >100,000 compression cycles; validated leak rate <1.0 × 10⁻⁵ mbar·L/s (helium mass spectrometry)
• Integrated safety architecture: over-temperature cut-off, compressor high-pressure shutdown, humidity sensor fault detection, door-open alarm, and emergency power-off relay with audible/visual alert

Sample Compatibility & Compliance

This chamber accommodates samples ranging from PCB assemblies and lithium-ion pouch cells to polymer films and optical coatings. The Ø50 mm left-side test port supports shielded signal lines, thermocouple feeds, or vacuum-rated conduit (with optional hermetic gland kit). Internal chamber geometry permits unobstructed airflow per ASTM E145-22 Class II requirements, ensuring uniform exposure across all sample zones. Certified compliance includes IEC 60068-2-1 (cold), -2-2 (dry heat), -2-30 (cyclic damp heat), MIL-STD-810G Method 502.6/503.1, and full alignment with GB/T 2423.1–2423.4 and GJB 150.3/150.4. Optional validation packages support IQ/OQ/PQ documentation per FDA 21 CFR Part 11 and ISO/IEC 17025 laboratory accreditation requirements.

Software & Data Management

The embedded controller firmware supports traceable data acquisition at user-selectable intervals (1s–60min), with onboard storage for ≥30 days of continuous 10-channel logging (temp, RH, ramp rate, alarm status, setpoint deviation). USB export enables direct import into LIMS platforms or statistical analysis tools (e.g., JMP, Minitab). Remote monitoring is available via Ethernet (Modbus TCP) or optional Wi-Fi module, enabling integration into centralized facility management systems. Audit trail functionality records all parameter changes, user logins, and calibration events with timestamp and operator ID—fully compliant with GLP and GMP data integrity principles.

Applications

• Aerospace: Accelerated life testing of avionics enclosures per DO-160 Section 4 (temperature) and Section 10 (humidity)
• Electronics: Thermal cycling and moisture sensitivity level (MSL) qualification of surface-mount devices (J-STD-020)
• Automotive: Climate endurance validation of ADAS sensors, EV battery modules, and interior trim materials (SAE J2412, ISO 16750-4)
• Pharmaceuticals: Long-term and accelerated stability testing per ICH Q1 guidelines; excipient compatibility screening
• Materials Science: Hygrothermal aging of composites, adhesives, and barrier films for packaging qualification

FAQ

What standards does this chamber meet for regulatory validation?

It complies with IEC 60068-2 series, MIL-STD-810G, GB/T 2423, and GJB 150. Full IQ/OQ/PQ documentation kits are available upon request for FDA, ISO 17025, or EU Annex 11 compliance.

Can the chamber operate continuously at −70 °C and 5 %RH simultaneously?

Yes—its cascade refrigeration and desiccant-assisted dehumidification system maintains simultaneous extreme low-temperature/low-humidity conditions without condensation or frost accumulation.

Is remote monitoring and control supported?

Standard Ethernet (Modbus TCP) enables SCADA integration; optional Wi-Fi module adds browser-based access and email/SMS alerting for critical alarms.

How is contamination minimized during operation?

Through oil-free compressors, electropolished 304SS interior surfaces, VOC-free insulation, and sealed steam generation—validated by residual gas analysis (RGA) per ASTM E1559.

What customization options are available for non-standard sample sizes?

Custom internal dimensions, additional test ports, reinforced shelves, and inert gas purging (N₂/Ar) are offered as factory-installed options with lead-time adjustment.