JianHu JH Series Temperature and Humidity Controlled Environmental Test Chamber

Overview

The JianHu JH Series Temperature and Humidity Controlled Environmental Test Chamber is an engineered platform for accelerated reliability assessment of materials and components under controlled thermal and hygrothermal stress conditions. Based on the principle of forced-air convection with dual-loop PID-controlled heating, refrigeration, and humidity regulation, the chamber delivers precise, repeatable, and traceable environmental profiles compliant with international standards for product qualification and validation. Its operational envelope spans –70°C to +150°C and 10–98% RH—enabling simulation of real-world climatic extremes encountered during storage, transport, and field operation across automotive electronics, polymer-based assemblies, printed circuit boards (PCBs), and medical device enclosures. The system integrates high-density polyurethane insulation, optimized airflow ducting, and redundant safety interlocks to ensure long-term stability, energy efficiency, and operator protection.

Key Features

• Wide operational range: –70°C to +150°C temperature; 10–98% RH humidity—validated per IEC 60068-2-1 (cold), -2 (dry heat), -14 (change of temperature), and -30 (damp heat cyclic)
• High-precision control architecture: Dual-stage PID algorithms with adaptive tuning, supported by Class A platinum RTD sensors (IEC 60751) and capacitive RH transducers calibrated to NIST-traceable references
• Uniform environmental distribution: Optimized air circulation design achieves ≤±1°C temperature uniformity and ≤±3% RH uniformity across the working volume, verified via 9-point mapping per ISO 16750-4 Annex B
• Robust thermal management: Air-cooled refrigeration system with cascade compressors for sub-zero operation; steam humidification + refrigerative dehumidification for rapid RH response and low drift
• Comprehensive safety system: Triple-level overtemperature cutoff (mechanical, electronic, software), door interlock with auto-hold function, ground-fault circuit interrupter (GFCI), and condensate overflow detection
• Modular customization capability: Adjustable chamber dimensions (standard volumes from 100L to 1000L), optional stainless-steel interior, extended cable ports, and programmable ramp-soak profiles with up to 99 segments

Sample Compatibility & Compliance

The JH Series accommodates a broad spectrum of physical specimens—including rigid and flexible plastics, elastomeric seals, PCBAs, battery modules, automotive ECUs, and optical housings—without compromising environmental fidelity. Internal chamber geometry supports standard test fixtures (e.g., DIN 50017, ASTM D4332 specimen racks) and allows integration with external monitoring instrumentation via feedthroughs. Regulatory alignment includes full traceability to ISO/IEC 17025 calibration requirements, support for GLP/GMP audit trails (with optional 21 CFR Part 11-compliant software), and compliance with automotive OEM specifications such as GMW14872, Ford CETP 00.00-L-467, and VW 80101. All units are manufactured under ISO 9001:2015 certified processes and conform to CE marking directives (2014/30/EU EMC, 2014/35/EU LVD).

Software & Data Management

Equipped with JianHu’s proprietary TouchView™ control interface, the chamber features a 7-inch TFT LCD touchscreen with intuitive drag-and-drop profile programming, real-time multi-parameter graphing (T/RH/time), and event-driven alarm logging. Data export is supported in CSV and PDF formats, with optional Ethernet connectivity enabling remote supervision via SNMP or HTTP API. For regulated environments, the optional DataLock™ module provides encrypted local storage, user-role access control (admin/operator/auditor), electronic signatures, and immutable audit logs meeting FDA 21 CFR Part 11 and EU Annex 11 requirements. Calibration certificates include as-found/as-left data, uncertainty budgets, and metrological traceability statements.

Applications

• Electronics reliability testing: Thermal cycling of semiconductor packages, moisture sensitivity level (MSL) evaluation per J-STD-020, and bias-HAST simulation
• Automotive component validation: ECU cold-start performance at –40°C, connector corrosion resistance under damp heat (85°C/85% RH), and polymer aging per ISO 16750-4
• Plastics and elastomers: Dimensional stability assessment, coefficient of thermal expansion (CTE) screening, and hydrolytic degradation kinetics
• Pharmaceutical packaging: Accelerated stability studies per ICH Q1A(R2), including long-term (25°C/60% RH) and accelerated (40°C/75% RH) conditions
• Academic and metrology research: Reference environment generation for sensor calibration, material property benchmarking, and inter-laboratory comparison studies

FAQ

What temperature and humidity ranges are validated per international standards?
The JH Series is fully validated across –70°C to +150°C and 10–98% RH per IEC 60068-2-1, -2, -14, and -30, with mapping reports available upon request.
Can the chamber be integrated into an existing MES or LIMS infrastructure?
Yes—via Modbus TCP, RS485, or optional OPC UA gateway, supporting bidirectional data exchange with manufacturing execution systems and laboratory information management systems.
Is third-party calibration and IQ/OQ/PQ documentation available?
Yes—JianHu offers factory-issued IQ/OQ protocols aligned with ASTM E2500 and GAMP5, plus UKAS-accredited calibration services through authorized partners.
What is the typical lead time for custom configurations?
Standard models ship within 4–6 weeks; fully customized chambers (e.g., non-standard volume, special coatings, or dual-zone control) require 10–14 weeks after final technical sign-off.
Does the system support unattended weekend or holiday operation?
Yes—the chamber includes battery-backed real-time clock, automatic power recovery after outage, and email/SMS alerting via optional GSM module for continuous 24/7 monitoring.