YSEI SHH-800SD-2TD Dual-Door Pharmaceutical Stability Testing Chamber

Overview

The YSEI SHH-800SD-2TD Dual-Door Pharmaceutical Stability Testing Chamber is an engineered environmental simulation system designed specifically for compliance-driven drug stability studies under ICH Q1A(R3), Q1B, Q1C, and Q5C guidelines. It operates on a dual-loop control architecture—separate PID-regulated refrigeration, heating, and steam-based humidification subsystems—ensuring high reproducibility of temperature and relative humidity profiles across the entire working volume. The chamber’s structural design integrates ISO 14644-1 Class 8 cleanroom-compatible airflow management, minimizing thermal stratification and moisture boundary layer formation around test samples. Its primary function is to replicate defined storage conditions (e.g., long-term: 25°C ±2°C / 60% RH ±5%, accelerated: 40°C ±2°C / 75% RH ±5%, intermediate: 30°C ±2°C / 65% RH ±5%) for real-time and accelerated stability protocols required by regulatory submissions to the FDA, EMA, PMDA, and NMPA.

Key Features

• Dual-door configuration with tempered glass inner door and electromechanical outer lock—reduces thermal/humidity perturbation during sample access while enabling visual monitoring without opening the main chamber.
• Independent overtemperature safety cutoff (mechanical bimetal switch) and redundant digital limit logic—compliant with IEC 61000-4-2 and UL 61010-1 for laboratory equipment safety.
• Integrated GSM-enabled SMS alarm system (optional)—configurable for deviation alerts (temperature, humidity, power failure, door breach) with multi-device group management capability.
• 64 MB internal cyclic data buffer plus removable SD card (32 GB pre-installed) supporting audit-trail-compliant logging per FDA 21 CFR Part 11 Annex A requirements—timestamped, user-identifiable, tamper-evident records.
• Touchscreen HMI with intuitive navigation, multilingual UI (English, Chinese, Spanish), and configurable logging intervals (1 minute to 24 hours); supports export in CSV, PDF, and XML formats.
• RS485 Modbus RTU interface enables centralized monitoring of up to 30 units via a single host PC or SCADA system; optional Ethernet gateway provides HTTPS/TLS remote access through the SIMS cloud platform.

Sample Compatibility & Compliance

The SHH-800SD-2TD accommodates diverse pharmaceutical dosage forms—including vials, ampoules, blister packs, IV bags, and lyophilized powders—within its 800 L working volume. Its low-humidity capability (down to 10% RH at 40°C) meets ICH Q1B photostability prerequisite conditioning and supports testing of hygroscopic biologics and large-volume parenterals requiring strict desiccation control. All calibration and verification procedures follow JJF 1101–2019 (Calibration Specification for Environmental Test Equipment) and are traceable to CNAS-accredited reference standards. Factory-supplied IQ/OQ documentation packages include protocol templates, test scripts, acceptance criteria, and raw calibration reports—fully aligned with EU GMP Annex 15 and WHO TRS 986 Annex 6 requirements.

Software & Data Management

The embedded controller firmware implements ALCOA+ principles: Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, and Available. Electronic records include operator ID, event timestamps, setpoint history, sensor readings (Pt100 ×3 temp, capacitive RH ×2), and alarm logs—all digitally signed and checksum-verified. Data export supports secure transfer via USB or SD card; no proprietary software is required for viewing. Optional SIMS desktop client enables trend analysis, deviation reporting, and automated certificate generation. Software validation package includes risk assessment (ICH Q9), functional specification (URS), and test evidence (IQ/OQ/PQ), fully compliant with FDA 21 CFR Part 11 Subpart C and Annex 11 of the EU GMP Guide.

Applications

• ICH-compliant long-term, accelerated, and intermediate stability studies for registration dossiers (CTD Module 3).
• Forced degradation studies (thermal, oxidative, hydrolytic) under controlled stress conditions.
• Reference standard storage qualification and working standard lifecycle monitoring.
• GMP warehouse environmental mapping and qualification (cold room, ambient storage area).
• Stability-indicating method development support—correlating physical/chemical changes with environmental exposure time.
• Biologics and mRNA vaccine formulation stability under low-RH, elevated-temperature regimes.

FAQ

Does the SHH-800SD-2TD support 21 CFR Part 11-compliant electronic signatures and audit trails?
Yes—the system includes role-based user authentication, electronic signature capture for critical actions (e.g., parameter changes, calibration), and immutable audit logs with SHA-256 hash integrity verification.
Can the chamber maintain 40°C / 25% RH for large-volume parenteral stability testing?
Yes—its steam-humidification bypass mode and optimized air recirculation path ensure stable low-RH performance at elevated temperatures, validated per ICH Q1A(R3) Annex 2.
Is IQ/OQ documentation provided as part of delivery?
Yes—full factory-executed IQ/OQ protocols with executed reports, calibration certificates, and URS traceability matrix are included; PQ support services available upon request.
What is the maximum number of chambers that can be monitored simultaneously via one PC?
Up to 30 units via RS485 daisy-chain topology using standard Modbus RTU; Ethernet expansion supports larger deployments with VLAN segmentation.
How is data integrity preserved during unexpected power loss?
Non-volatile FRAM memory retains real-time sensor data and event logs during outage; SD card writes use journaling file system (ext4) with power-fail-safe commit handling.