Jianhu NJ-THC Series High-Low Temperature & Humidity Cycling Environmental Test Chamber

Overview

The Jianhu NJ-THC Series High-Low Temperature & Humidity Cycling Environmental Test Chamber is engineered for precise simulation of dynamic thermal and hygrothermal stress conditions in accordance with the latest national and international environmental testing standards. Based on the principle of forced-air convection combined with dual independent PID-controlled refrigeration and humidification subsystems, this chamber delivers tightly regulated temperature and relative humidity (RH) profiles across programmable cycling sequences. It supports standardized test protocols including GB/T 10586–2023, IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-30, and ASTM D4332. Its architecture integrates a high-efficiency scroll compressor, stainless-steel insulated chamber walls, and a dedicated anti-condensation thermal management system—critical for preventing dew formation during rapid transitions between cold/dry and warm/humid phases. Designed specifically for reliability validation in electronics, automotive components, battery modules, and aerospace materials, the NJ-THC Series ensures reproducible exposure to combined climatic stresses under GLP-compliant operational conditions.

Key Features

• Compliance-ready design aligned with GB/T 10586–2023 requirements: humidity fluctuation ≤ ±2% RH; humidity recovery time ≤ 20 s after cycle transition; synchronized temperature/humidity control accuracy ≤ ±1°C / ±3% RH
• Explosion-proof configuration certified to GB 3836.1–2021 (IEC 60079-0) for use in hazardous environments requiring ATEX or equivalent classification
• Dual-loop independent control system: separate PID algorithms govern refrigeration, heating, and humidification—minimizing cross-interference and enhancing long-term stability
• High-precision capacitive humidity sensor (imported, traceable to NIM calibration) with auto-compensation for temperature drift and condensation risk mitigation
• Customizable interior dimensions and door configurations (single/double swing, top-hinged, or sliding) to accommodate non-standard test specimens and fixture integration
• Real-time monitoring interface with password-protected parameter locking, event logging, and configurable alarm thresholds for temperature, humidity, and safety interlocks

Sample Compatibility & Compliance

The NJ-THC Series accommodates a broad range of sample types—including PCB assemblies, lithium-ion battery packs, optical sensors, polymer enclosures, and medical device housings—without compromising chamber integrity or measurement fidelity. All internal surfaces are constructed from 304 stainless steel with electropolished finish to resist corrosion and facilitate cleaning under ISO 13485 or GMP cleanroom protocols. The chamber meets ISO/IEC 17025:2017 requirements for test equipment used in accredited laboratories, supporting full audit trails for calibration records, software versioning, and operator actions. Optional accessories include multi-point temperature/RH mapping probes (traceable to national metrology institutes), data acquisition interfaces compliant with FDA 21 CFR Part 11, and external exhaust ducting for solvent-laden or outgassing applications.

Software & Data Management

Equipped with Jianhu’s proprietary THCSuite™ v4.2 control software, the NJ-THC Series provides intuitive graphical programming of complex test profiles—including ramp-soak cycles, step transitions, and real-time manual overrides. Data export supports CSV, XML, and PDF formats with embedded digital signatures and timestamped metadata. The system logs all critical parameters at user-defined intervals (minimum 1-second resolution), stores ≥12 months of historical data locally, and enables remote access via secure HTTPS or MODBUS TCP/IP for enterprise-level integration. Calibration certificates issued by CNAS-accredited labs are digitally embedded into the firmware and linked to each sensor’s unique ID. Software updates follow a formal change control process documented per ISO 9001:2015 Clause 8.5.5.

Applications

This environmental test chamber serves mission-critical roles across multiple sectors: accelerated life testing of EV battery thermal management systems under cyclic wet-bulb conditions; qualification of avionics hardware per DO-160G Section 4 (Temperature) and Section 5 (Humidity); validation of packaging integrity for sterile medical devices exposed to seasonal humidity variations; and screening of semiconductor encapsulants for moisture-induced delamination. In academic and government research settings, it supports studies on material hygroscopic expansion, phase-change behavior in shape-memory alloys, and degradation kinetics of biodegradable polymers. Its ability to maintain stable low-humidity setpoints (<10% RH) at sub-zero temperatures makes it suitable for evaluating moisture barrier performance of thin-film coatings used in OLED displays.

FAQ

Does the NJ-THC Series support automated compliance reporting for GB/T 10586–2023?
Yes—THCSuite™ generates pre-formatted test reports including pass/fail status against all mandatory clauses, raw data traces, uncertainty budgets, and electronic signatures required for regulatory submissions.
Can the chamber be configured for continuous operation over 1,000 hours without maintenance intervention?
With scheduled preventive maintenance every 500 operating hours (including compressor oil analysis and humidity sensor verification), uninterrupted 1,000-hour runs are validated for standard configurations.
Is remote calibration verification available without physical instrument removal?
Yes—the system supports in-situ verification using reference-grade portable calibrators connected via RS-485, with results automatically archived and compared against baseline certification data.
What level of technical documentation is provided for ISO 17025 accreditation preparation?
Full documentation package includes metrological traceability statements, uncertainty calculation worksheets, installation qualification (IQ) and operational qualification (OQ) protocols, and a comprehensive risk assessment report per ISO/IEC 17025 Annex A.3.
Are spare parts and firmware updates guaranteed for minimum 10 years post-purchase?
Jianhu commits to 10-year obsolescence management per its ISO 9001-certified product lifecycle policy, including extended availability of compressors, controllers, and humidity transducers.