JianHu JH-Series Walk-In Temperature and Humidity Environmental Test Chamber

Overview

The JianHu JH-Series Walk-In Temperature and Humidity Environmental Test Chamber is an engineered solution for controlled environmental simulation in reliability engineering, quality assurance, and product validation laboratories. Designed around the principles of psychrometric control and forced-air thermal convection, this chamber maintains precise, repeatable conditions across large-volume test spaces—enabling full-scale evaluation of industrial components, assemblies, and finished goods under defined climatic stress profiles. Unlike benchtop or reach-in chambers, its walk-in architecture supports direct operator access, real-time instrumentation interfacing, and in-situ monitoring of thermally or hygroscopically sensitive systems—including automotive ECUs, aerospace avionics enclosures, medical device packaging, and battery modules. The system operates within a validated operational envelope of 15–45 °C and 30–98 % RH, meeting foundational requirements for IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), and IEC 60068-2-78 (damp heat, steady state) test methods.

Key Features

• Walk-in structural design with personnel-accessible interior (standard door height ≥ 2.0 m, customizable to ISO 14726-compliant egress clearance)
• Microprocessor-based dual-loop PID controller with independent temperature and humidity regulation circuits
• Air-cooled refrigeration system with high-efficiency scroll compressor and copper-aluminum finned evaporator
• Steam-type humidification system with stainless-steel boiler and deionized water feed interface
• Temperature ramp rate programmability from 1.0 to 3.0 °C/min, supporting accelerated life testing protocols
• Integrated safety architecture including over-temperature cutoff, high-humidity shutoff, phase failure protection, and door interlock
• Front-panel touchscreen HMI with multi-language support (English, Chinese, Spanish, German) and real-time trend display
• Modular construction with optional insulation upgrades (e.g., 150 mm polyurethane foam, λ = 0.022 W/m·K) for enhanced thermal stability

Sample Compatibility & Compliance

The JH-Series accommodates samples up to 2.5 m in height and 3.0 m in depth, with floor loading capacity rated at 500 kg/m². It supports static and dynamic load configurations—including rack-mounted server arrays, vehicle lighting clusters, and pharmaceutical cold-chain pallets. All standard configurations comply with CE marking requirements (2014/30/EU EMC Directive, 2014/35/EU LVD Directive) and are designed to meet the mechanical and electrical safety provisions of UL 3101-1 and IEC 61010-1. Optional factory-installed data logging modules provide audit-ready records traceable to ISO/IEC 17025 calibration standards. While not inherently 21 CFR Part 11 compliant, the system integrates with third-party electronic lab notebook (ELN) platforms via RS485 Modbus RTU or Ethernet TCP/IP for GLP/GMP-aligned data governance.

Software & Data Management

The embedded controller firmware supports up to 99 programmable test cycles, each comprising up to 99 segments with variable ramp/soak profiles. Data export is available in CSV format via USB 2.0 port or optional Ethernet connection. Remote monitoring and alarm notification (SMS/email) can be enabled through the JianHu CloudLink gateway—a secure, TLS 1.2-encrypted MQTT client compatible with on-premise SCADA or cloud-based MES platforms. Firmware updates are delivered via signed binary packages verified using SHA-256 checksums; version history and change logs are retained for internal QA traceability. For regulated environments, optional PDF report generation includes timestamped operator ID, chamber serial number, sensor calibration expiry dates, and deviation flags per test segment.

Applications

• Electronics reliability: Thermal cycling of PCBAs per JEDEC JESD22-A104, humidity soak per JESD22-A101B
• Automotive component validation: Climate endurance testing of infotainment displays, ADAS sensors, and EV battery housings per ISO 16750-4
• Pharmaceutical packaging: Accelerated stability studies of blister packs and vial stoppers under ICH Q1A(R2) conditions
• Aerospace ground support: Pre-flight conditioning of avionics bays and composite tooling fixtures
• Materials science: Hygrothermal aging of polymer composites, adhesives, and sealants per ASTM D5229/D5229M
• Academic research: Controlled-environment experimentation in building physics, food science, and textile engineering labs

FAQ

What is the standard warranty coverage for the JH-Series chamber?
JianHu provides a 12-month parts-and-labor warranty from commissioning date, extendable to 36 months under service contract agreements.
Can the chamber be integrated into an existing facility HVAC or exhaust system?
Yes—custom ducting interfaces, exhaust dampers, and make-up air compensation kits are available upon request and require site survey verification.
Is remote diagnostics supported out-of-the-box?
Standard units include basic ping-and-port-status monitoring; full remote diagnostic capability requires optional CloudLink hardware and annual support subscription.
Does the system meet MIL-STD-810G environmental test method requirements?
While not certified to MIL-STD-810G, the chamber’s performance envelope satisfies Method 501.6 (High Temperature), Method 502.6 (Low Temperature), and Method 507.6 (Humidity) when operated within specified limits and calibrated per NIST-traceable procedures.
Are calibration certificates included with shipment?
A factory-as-built temperature/humidity uniformity report is provided; NIST-traceable calibration certificates require separate purchase and on-site execution by authorized JianHu metrology technicians.