Jianhu JTH Series Walk-in Temperature and Humidity Controlled Chamber
| Origin | China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic |
| Model | JTH |
| Pricing | Upon Request |
Overview
The Jianhu JTH Series Walk-in Temperature and Humidity Controlled Chamber is an engineered environmental test system designed for large-scale, high-fidelity simulation of climatic conditions across industrial R&D, quality assurance, and compliance validation workflows. Built upon a robust dual-stage refrigeration architecture with water-cooled condensation, the chamber operates on fundamental principles of psychrometric control—precisely regulating dry-bulb temperature and relative humidity via coordinated modulation of refrigerant flow, electric heating elements, and steam-based humidification. Its structural design supports full human access (walk-in configuration), enabling thermal and hygrothermal testing of oversized components—including automotive ECUs, avionics subassemblies, server racks, and medical device enclosures—under repeatable, traceable, and standards-aligned conditions.
Key Features
- Temperature range: –65 °C to +80 °C (configurable low-temperature variants: A: 0 °C, B: –20 °C, C: –40 °C, D: –65 °C)
- Humidity range: 20–95% RH, continuously controllable with steam generator and precision dew-point monitoring
- Temperature resolution: ±0.1 °C; uniformity: ±1.5 °C (at working volume); stability: ±0.5 °C over 24 h
- Humidity resolution: ±0.1% RH; uniformity: ±5.0% RH; stability: ±3.0% RH over 24 h
- Heating rate: up to 4.0 °C/min; cooling rate: 0.7–1.2 °C/min (dependent on setpoint and load)
- Construction: Exterior in powder-coated color steel or brushed stainless steel; interior in 304 stainless steel; high-density polyurethane insulation with chlorinated ethyl formate formulation (continuous service up to 120 °C)
- Cooling system: Dual-stage hermetic compressors (Tecumseh France), water-cooled condenser with high-efficiency heat exchange
- Safety & protection: Over-temperature/over-humidity cutoffs, refrigerant high/low pressure switches, compressor overload relay, non-fuse circuit breakers, integrated fault diagnostics with audible/visual alerts
- Controller options: TEMI (South Korea) or OYO (Japan) programmable PID controllers with multi-segment ramp-soak profiles, real-time graphing, and USB/RS485 communication
Sample Compatibility & Compliance
The JTH chamber accommodates test specimens up to 260 m³ in volume, with custom internal dimensions specified per client spatial requirements. It is validated for conformance with internationally recognized environmental test standards, including but not limited to: GB/T 2423.1–2001 (cold), GB/T 2423.2–2001 (dry heat), GB/T 2423.3–1993 (constant damp heat), GB/T 2423.4–1993 (cyclic damp heat), GB/T 2423.22 (temperature change), IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), GJB 150.3 (military high-temp), GJB 150.4 (military low-temp), and GJB 150.9 (military damp heat). All calibration and performance verification procedures follow ISO/IEC 17025–compliant protocols where applicable, supporting GLP/GMP-aligned test documentation and audit readiness.
Software & Data Management
Standard controller firmware enables logging of temperature and humidity data at user-defined intervals (minimum 1-second resolution), with onboard storage capacity exceeding 30 days of continuous 10-channel recording. Optional data acquisition modules support Ethernet or Modbus TCP integration into centralized MES or LIMS platforms. For regulated environments, optional FDA 21 CFR Part 11–compliant software packages are available—featuring electronic signatures, role-based access control, immutable audit trails, and automatic backup to network drives. All recorded datasets export natively in CSV or Excel-compatible formats for post-test statistical analysis (e.g., ANOVA, Cp/Cpk, trend forecasting).
Applications
- Automotive: Validation of infotainment systems, battery management units (BMUs), and ADAS sensors under extreme ambient cycling
- Aerospace & Defense: Environmental stress screening (ESS) of flight-critical avionics per MIL-STD-810G/H
- Electronics Manufacturing: Burn-in and reliability assessment of PCBAs, power supplies, and telecom base station hardware
- Medical Devices: Accelerated aging studies per ISO 11607 and shelf-life verification under ICH Q1A(R2) conditions
- Energy Storage: Thermal runaway propagation testing for Li-ion battery modules under controlled humidity gradients
- Materials Science: Hygroscopic expansion coefficient measurement and polymer moisture absorption kinetics
FAQ
What is the standard lead time for a custom-sized JTH chamber?
Lead time ranges from 12 to 16 weeks following final dimensional approval and deposit confirmation, subject to compressor and controller availability.
Can the chamber be configured for rapid temperature transition testing (RTT)?
Yes—optional high-capacity heating/cooling modules and optimized airflow ducting enable transition rates exceeding 3 °C/min between –40 °C and +85 °C within defined volume constraints.
Is third-party calibration certification included with delivery?
Factory calibration with NIST-traceable reference instruments is standard; ISO/IEC 17025–accredited calibration reports are available as a value-added service.
Does the system support remote monitoring and alarm notification?
All TEMI and OYO controllers include Ethernet connectivity and SMTP-based email alerting for critical faults, with optional cloud dashboard integration via MQTT or REST API.
Are spare parts and technical support available outside mainland China?
Jianhu maintains authorized service partners in Southeast Asia, the Middle East, and Latin America; critical spares (compressors, controllers, humidifiers) are stocked regionally with 72-hour dispatch SLA.
