JianHu JH-Series Programmable Environmental Test Chamber
| Brand | JianHu |
|---|---|
| Origin | Shanghai, China |
| Model | JH-Series Programmable Environmental Test Chamber |
| Refrigeration Method | Compressor-Based Cooling |
| Explosion-Proof Design | Yes |
| Temperature Range | -70°C to +180°C (standard configuration) |
| Temperature Uniformity | ±0.5°C (at working volume center, per IEC 60068-3-5) |
| Temperature Stability | ±0.3°C (over 2 hours, per ISO 16750-4) |
| Heating Rate | ≥3°C/min (10–90% of full range, typical) |
| Cooling Rate | ≥2°C/min (90–10% of full range, typical) |
| Control System | 7-inch TFT touchscreen HMI with Ethernet/RS485 interface |
| Compliance | IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), ISO 16750-4, ASTM D3574, MIL-STD-810H (environmental stress screening profiles) |
Overview
The JianHu JH-Series Programmable Environmental Test Chamber is an industrial-grade, microprocessor-controlled climate simulation system engineered for precision thermal stress testing across aerospace, automotive electronics, semiconductor packaging, battery R&D, and medical device validation. Based on forced-air convection with dual-stage compressor refrigeration and PID-regulated resistive heating, the chamber delivers repeatable, traceable temperature profiles under programmable ramp-hold-soak cycles. Its robust stainless-steel inner chamber, high-efficiency vacuum-fiber insulation (≥120 mm thickness), and leak-tight sealing meet stringent requirements for long-duration reliability testing—enabling accelerated life assessment, HALT/HASS pre-screening, and environmental qualification per international standards.
Key Features
- Explosion-proof certified construction (Class I, Division 1, Group D per NEC 500; optional ATEX/IECEx Zone 1 compliance available)
- Programmable 100-segment, 99-cycle profile capability with user-defined ramp rates, dwell times, and loop nesting
- Real-time monitoring of chamber internal temperature via three calibrated PT100 sensors (ISO/IEC 17025-traceable calibration certificate optional)
- Integrated data logging at configurable intervals (1s–300s), stored internally (8 GB) and exportable via USB or Ethernet (Modbus TCP, FTP)
- Dual independent safety systems: mechanical overtemperature cut-off (bimetallic thermostat) and electronic supervisory controller with alarm relay output
- Low-noise operation (<65 dB(A) at 1 m) and energy-efficient design meeting ISO 50001-aligned power management protocols
Sample Compatibility & Compliance
The JH-Series accommodates test specimens up to 1000 L working volume (custom sizes available). Internal dimensions support standard test fixtures, PCB racks, battery modules (up to 1.2 m height), and automotive ECUs with cable feedthrough ports (IP65-rated, 4× Ø25 mm). All models comply with electromagnetic compatibility (EMC) per EN 61326-1 and safety per EN 61010-1. The chamber architecture supports integration into GLP/GMP environments: audit trail-enabled software logs all parameter changes, user logins, and alarm events; optional 21 CFR Part 11-compliant electronic signatures and role-based access control are available via the JianHu TestSuite™ platform.
Software & Data Management
JianHu TestSuite™ v4.2 is a Windows-based control and analysis application supporting multi-chamber synchronization, remote monitoring (via web browser or mobile app), and automated report generation (PDF/Excel). It includes built-in templates aligned with ASTM E1525 (accelerated aging), ISO 16750-4 (road vehicles), and JEDEC JESD22-A104 (temperature cycling). Raw time-series data is stored in .CSV format with metadata tags (test ID, operator, calibration status, environmental conditions). Optional cloud backup and API integration (RESTful JSON) enable linkage with MES/QMS platforms such as Siemens Opcenter, ETQ Reliance, or Qualio.
Applications
- Thermal cycling validation of Li-ion battery cells and packs under UN 38.3 T1–T5 protocols
- Pre-conditioning of optical components prior to laser-induced damage threshold (LIDT) testing
- Environmental stress screening (ESS) of avionics modules per MIL-STD-810H Method 501.7/502.7
- Stability testing of pharmaceutical primary packaging per ICH Q1A(R2) guidelines
- Material coefficient of thermal expansion (CTE) characterization using integrated strain gauge interfaces
- Corrosion resistance pre-conditioning for salt fog testing (paired with JianHu SST series)
FAQ
What temperature ranges are standard, and can custom ranges be specified?
Standard configurations cover –70°C to +180°C. Extended low-temperature options (–85°C) and high-temperature variants (+200°C) are available upon engineering review and thermal load calculation.
Is remote diagnostics and firmware update supported?
Yes—chambers ship with embedded Ethernet connectivity and support secure OTA updates via HTTPS. Remote troubleshooting is enabled through SSH access (disabled by default; activated per customer request with IT security approval).
How is traceability ensured for calibration and maintenance records?
Each unit includes a factory calibration report with uncertainty budgets. Maintenance history, sensor recalibration dates, and compressor oil change logs are stored in non-volatile memory and synchronized to the TestSuite™ database with timestamped digital signatures.
Can the chamber operate unattended for 72+ hours during qualification testing?
Yes—designed for continuous operation under Class 3 duty cycle (IEC 60068-1), with redundant cooling circuit monitoring, automatic defrost sequencing, and UPS-compatible power input (optional 2 kVA online UPS integration).
Are third-party validation services (IQ/OQ/PQ) provided?
JianHu offers GxP-compliant installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ) packages—including protocol development, execution, and final reports signed by qualified engineers holding ASQ CQE certification.
