Jianhu JH-Series Precision Temperature & Humidity Environmental Test Chamber

Overview

The Jianhu JH-Series Precision Temperature & Humidity Environmental Test Chamber is an engineered solution for accelerated environmental stress testing under tightly controlled thermal and hygrothermal conditions. Designed in accordance with fundamental principles of thermodynamic equilibrium and psychrometric control, the chamber employs dual-loop PID-regulated heating, refrigeration, humidification, and dehumidification subsystems to maintain stable setpoints across wide operational ranges. Its core architecture integrates high-efficiency scroll compressors, stainless-steel insulated chamber walls with low-conductivity polyurethane foam (≥100 mm thickness), and corrosion-resistant internal construction — all essential for long-term repeatability in laboratory and industrial qualification environments. The system supports both steady-state and dynamic profile testing, enabling compliance-driven validation of product reliability under simulated storage, transportation, and operational conditions per international standards including IEC 60068-2, MIL-STD-810H, and GB/T 2423.

Key Features

• Precision dual-channel PID control system with adaptive tuning for simultaneous temperature and humidity regulation
• Explosion-proof certified configuration (certified to Class I, Division 1/2, Groups C/D per NEC/CEC requirements)
• Wide operating range: -70 °C to +150 °C temperature; 20–98% RH humidity (±2.5% RH accuracy at 25 °C)
• High-stability performance: temperature fluctuation ≤ ±0.5 °C; uniformity ≤ ±2.0 °C across working volume
• Modular thermal management: independent refrigerant circuits for rapid cooling and precise reheating
• Customizable inner chamber dimensions (standard options from 100 L to 1000 L; fully bespoke configurations available)
• Robust insulation system using closed-cell polyurethane with vapor barrier layer to minimize thermal leakage
• Touchscreen HMI with multi-language interface (English, Chinese, Spanish), real-time trend logging, and alarm history

Sample Compatibility & Compliance

The JH-Series accommodates diverse sample types — including PCB assemblies, automotive ECUs, pharmaceutical packaging, optical sensors, and polymer-based medical devices — without compromising environmental fidelity. Internal chamber materials meet ISO 10993-5 cytotoxicity requirements for biocompatibility-critical applications. All electrical components comply with CE marking directives (EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU). For regulated industries, optional audit-ready data integrity features include 21 CFR Part 11-compliant electronic signatures, user-access level controls, and tamper-evident event logs. The chamber supports GLP/GMP-aligned validation protocols, including IQ/OQ/PQ documentation packages upon request. Calibration traceability is provided via NIST-traceable reference sensors (temperature: PT100 Class A; humidity: capacitive polymer sensor with annual recalibration certificate).

Software & Data Management

Equipped with Jianhu’s proprietary TestMaster™ software suite, the chamber enables full remote operation via Ethernet or RS485. Users can define multi-step test profiles (up to 99 segments), trigger conditional logic (e.g., hold-on-reach, ramp-on-failure), and export timestamped CSV/Excel reports compliant with ASTM E171 and ISO 17025 reporting formats. Optional cloud synchronization allows secure offsite monitoring through encrypted TLS 1.2 connections. All data records include metadata such as operator ID, calibration status, ambient lab conditions, and hardware firmware version — ensuring full chain-of-custody for regulatory submissions. Audit trails are retained for ≥36 months and support automated backup to NAS or FTP servers.

Applications

• Electronics: Thermal cycling of semiconductors, solder joint fatigue analysis, moisture sensitivity level (MSL) testing per JEDEC J-STD-020
• Automotive: Climate endurance validation of ADAS modules, battery management systems, and interior trim under combined temperature/humidity stress
• Pharmaceuticals: Stability testing per ICH Q1A(R3) guidelines; excipient compatibility studies; packaging permeability assessment
• Aerospace: Qualification of avionics enclosures per DO-160G Section 4 (temperature) and Section 5 (humidity)
• Academic Research: Controlled-environment aging of nanomaterials, polymer degradation kinetics, and corrosion mechanism studies
• Quality Assurance: In-process verification of manufacturing consistency for coated optics, MEMS devices, and precision machined components

FAQ

What standards does the JH-Series chamber comply with?
It conforms to IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat cyclic), and GB/T 2423 series. Optional certification to UL 61010-1 and ATEX/IECEx is available.
Can the chamber be integrated into an existing lab automation network?
Yes — it supports Modbus TCP, OPC UA, and custom API integration for MES/SCADA interoperability.
Is calibration performed before shipment?
Each unit undergoes factory calibration using traceable reference instruments; a full calibration certificate is included.
What maintenance intervals are recommended?
Compressor oil and refrigerant levels should be verified annually; humidity sensor recalibration every 12 months; chamber door gasket inspection quarterly.
Do you provide installation and validation support?
Yes — onsite IQ/OQ services, including protocol development, execution, and final report delivery, are available globally.