JianHu JH Series High-Low Temperature Environmental Test Chamber

Overview

The JianHu JH Series High-Low Temperature Environmental Test Chamber is an engineered solution for precise, repeatable thermal stress evaluation of materials, components, and finished products under controlled extreme temperature conditions. Based on forced-air convection and dual-stage compressor refrigeration architecture, the chamber delivers stable thermal environments across a wide operational range—from cryogenic -70 °C to elevated +150 °C—enabling compliance-driven testing per international standards including IEC 60068-2-1 (Cold), IEC 60068-2-2 (Dry Heat), MIL-STD-810H Method 502.7, and ISO 16750-4 for automotive electronics. Its explosion-proof configuration meets Class I, Division 1, Group C/D hazardous location requirements (per UL 60079-0 and ATEX Directive 2014/34/EU), making it suitable for testing battery cells, chemical samples, or solvent-based materials in regulated R&D and QA laboratories.

Key Features

• Full-color capacitive touchscreen HMI with intuitive icon-driven navigation—no training required for routine operation
• Robust stainless-steel interior chamber with reinforced insulation and double-sealed observation window
• Intelligent PID + fuzzy logic temperature control algorithm ensuring minimal overshoot and rapid stabilization
• Explosion-proof electrical architecture including intrinsically safe sensors, flameproof junction boxes, and purge-compatible terminal entries
• Modular refrigeration system with cascade compressors and environmentally compliant R404A/R23 refrigerant blend
• Real-time monitoring of chamber status via Ethernet (TCP/IP) and optional RS485 Modbus RTU interface
• Compliance-ready hardware design supporting future integration into 21 CFR Part 11–compliant validation workflows

Sample Compatibility & Compliance

The JH Series accommodates diverse sample geometries—including PCB assemblies, automotive ECUs, lithium-ion pouch cells, polymer specimens, and medical device packaging—within its configurable internal workspace. Chamber airflow dynamics are validated per ASTM E145 Annex A3 to ensure uniform thermal distribution. All models are supplied with factory calibration certificates traceable to NIM (National Institute of Metrology, China) and include documentation packages aligned with GLP and GMP Annex 15 expectations. Optional IQ/OQ protocols and SAT (Site Acceptance Testing) support are available upon request. The system conforms to CE marking requirements (EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU) and carries CCC certification for domestic Chinese deployment.

Software & Data Management

JianHu’s proprietary TestControl Suite v3.2 provides local and remote test orchestration via Windows-based PC software or embedded web server (HTTPS). Users define multi-step thermal profiles with up to 99 segments, set alarm thresholds (e.g., deviation > ±2 °C), and configure automatic data logging at user-selectable intervals (1s–300s). Raw time-series data is exported in CSV or Excel-compatible formats with embedded metadata (operator ID, timestamp, chamber serial number, firmware version). Audit trail functionality records all parameter changes, user logins, and calibration events—fully compliant with FDA 21 CFR Part 11 requirements when deployed with electronic signature modules. Optional cloud synchronization enables centralized fleet monitoring across multiple laboratory sites.

Applications

• Accelerated life testing of electric vehicle battery modules under thermal cycling (-40 °C ↔ +85 °C)
• Qualification of aerospace-grade composites per DO-160 Section 4.5 (Temperature Variation)
• Stability assessment of pharmaceutical primary packaging per ICH Q1A(R2) long-term and accelerated storage conditions
• Thermal shock pre-screening of semiconductor wafers prior to burn-in
• Material coefficient of thermal expansion (CTE) characterization using integrated dimensional metrology fixtures
• Environmental stress screening (ESS) of military-grade connectors and avionics enclosures

FAQ

Is this chamber suitable for testing lithium-ion batteries?
Yes—the explosion-proof variant is specifically engineered for UN 38.3 T1–T5 thermal abuse simulation and complies with IEEE 1625/1725 safety boundary definitions.

Can the chamber be validated for GMP production use?
Yes—documentation packages include DQ/IQ/OQ templates, calibration uncertainty budgets, and raw sensor calibration reports from accredited third-party labs.

What is the standard warranty coverage?
JianHu provides 12 months parts-and-labor warranty from commissioning date, extendable to 36 months with annual preventive maintenance contracts.

Does the system support custom test profile import via USB or network?
Yes—CSV-formatted thermal profiles can be loaded directly; the controller supports up to 100 stored programs with password-protected editing rights.

Are chamber dimensions customizable?
Standard internal volumes range from 150 L to 1000 L; non-standard configurations (e.g., tall vertical chambers, walk-in variants) are available under OEM engineering collaboration.