Jianhu JH-THP Series Programmable Temperature and Humidity Chamber for Research Applications

Overview

The Jianhu JH-THP Series Programmable Temperature and Humidity Chamber is an engineered environmental test system designed specifically for research laboratories, academic institutions, and quality assurance departments requiring precise, repeatable, and traceable climatic conditioning. It operates on the principle of dual-loop independent control—separate PID-regulated refrigeration/dehumidification and heating/humidification circuits—ensuring stable thermal and hygric fields across the working volume. Unlike basic benchtop chambers, the JH-THP integrates high-fidelity sensor architecture, laminar airflow optimization, and multi-segment programmable logic to meet the stringent demands of ISO 17025-accredited testing, ICH Q1 stability studies, and ASTM D4332 preconditioning protocols. Its design prioritizes metrological integrity: temperature and humidity uniformity are validated per IEC 60068-3-5 and verified at nine spatial points under loaded conditions.

Key Features

• Multi-segment programmable controller with up to 99 cycles and 999 steps per cycle, supporting ramp-soak-hold profiles with real-time deviation alarms.
• Dual-channel high-stability capacitive humidity sensors (Vaisala HUMICAP® or equivalent) and Pt100 Class A temperature probes, factory-calibrated and traceable to NIST standards.
• Optimized air circulation system featuring rear-mounted centrifugal blower with adjustable airflow vanes and symmetrical inlet/outlet ducting to minimize spatial gradients (< ±0.5 °C / ±2 % RH typical uniformity in standard configuration).
• Double-layer insulated chamber walls with vacuum-sealed polyurethane foam (≥120 mm thickness) and magnetic silicone door gasket rated for >100,000 compression cycles.
• Integrated data logging module storing ≥100,000 timestamped records (temperature, humidity, setpoint, alarm status) with CSV export via USB or Ethernet interface.
• Compliance-ready architecture: supports audit trail generation, user access levels (admin/operator), and electronic signature capability aligned with FDA 21 CFR Part 11 requirements when paired with optional validation software package.

Sample Compatibility & Compliance

The JH-THP accommodates a wide range of sample types—including pharmaceutical dosage forms, polymer specimens, electronic assemblies, biological reagents, and composite materials—without compromising environmental fidelity. Its customizable internal dimensions (standard options: 150–1000 L; custom builds up to 3000 L) allow integration of auxiliary fixtures such as sample racks, load simulators, or gas purge manifolds. The chamber meets essential regulatory benchmarks: compliance with ISO 14644-1 (cleanroom classification support), ICH Q5C (biological product storage), USP (pharmaceutical packaging testing), and GB/T 2423.3–2016 (Chinese national standard for damp heat testing). All units undergo full performance qualification (PQ) per IQ/OQ/PQ documentation templates provided, including mapping reports for temperature and humidity distribution under static and dynamic loading conditions.

Software & Data Management

Jianhu’s proprietary TH-Control Suite v4.2 enables remote monitoring, parameter synchronization, and automated report generation. The software supports real-time graphing of up to eight channels (dual sensor redundancy included), configurable alarm thresholds with email/SMS notifications, and secure role-based login. Raw data files adhere to ASTM E2500-13 metadata conventions and are exportable in .csv, .xlsx, or .pdf formats compliant with GLP/GMP record retention policies. Optional 21 CFR Part 11 add-on provides electronic signature workflows, change control logs, and tamper-evident audit trails—validated for use in regulated environments undergoing FDA, EMA, or NMPA inspections. Firmware updates are delivered via signed OTA packages to ensure cryptographic integrity.

Applications

• Accelerated stability testing of APIs and finished pharmaceuticals per ICH Q1A(R3)
• Environmental stress screening (ESS) of printed circuit boards and microelectromechanical systems (MEMS)
• Conditioning of textile, paper, and wood-based composites prior to tensile or moisture sorption analysis
• Long-term reliability validation of lithium-ion battery cells under cyclic temperature-humidity profiles
• Calibration laboratory reference environment maintenance for mass spectrometry, particle counters, and optical interferometers
• Biological specimen acclimatization for cell culture viability assays and enzyme activity kinetics

FAQ

What is the recommended calibration interval for the built-in sensors?
We recommend field calibration every 6 months using accredited secondary standards (e.g., Rotronic HC2-AW probe or Vaisala HM70 handheld calibrator), with full sensor replacement every 24 months under continuous operation.
Can the chamber be integrated into a central laboratory monitoring network?
Yes—the JH-THP supports Modbus TCP and OPC UA protocols via its industrial Ethernet port, enabling seamless integration with LabVantage, STARLIMS, or custom SCADA platforms.
Is validation documentation included with shipment?
Each unit ships with a Factory Acceptance Test (FAT) report, IQ/OQ protocol templates, and a certified temperature/humidity mapping report conducted under no-load conditions.
Does the system support nitrogen purge functionality?
Optional inert gas purge ports (ISO-KF 25) and pressure-regulated inlet valves are available for low-oxygen or low-humidity applications; requires external gas supply and regulator.
What is the warranty coverage and service response time?
Standard warranty: 24 months parts and labor; extended service contracts include 4-hour onsite response for critical failures within mainland China, backed by Jianhu’s ISO 9001-certified service network.