YSEI SHH-SSD-2TA Series Multi-Chamber Drug Stability Testing System

Overview

The YSEI SHH-SSD-2TA Series Multi-Chamber Drug Stability Testing System is an engineered environmental simulation platform designed to meet the rigorous requirements of pharmaceutical stability studies as defined by ICH Q1–Q5, USP , FDA Guidance for Industry (Stability Testing of New Drug Substances and Products), and Chinese Pharmacopoeia (ChP) General Chapter 9001. This system implements a multi-chamber architecture—comprising two independently controlled temperature- and humidity-regulated chambers—to enable concurrent execution of long-term, accelerated, intermediate, and stress-condition (e.g., low-humidity 40 °C/20 %RH for large-volume parenterals) stability protocols under a single integrated control framework. Each chamber operates with closed-loop PID-controlled refrigeration, steam-based humidification, and forced-air convection to ensure spatial uniformity (±0.5 °C temperature deviation, ±3 %RH humidity deviation across working volume) and temporal stability (±0.1 °C/±1 %RH drift over 24 h). The system is validated for continuous operation at regulatory-compliant setpoints ranging from 2 °C to 60 °C and 10 %RH to 95 %RH, supporting both static and dynamic stability protocols required for registration dossiers.

Key Features

• Independent dual-chamber control: Enables simultaneous execution of distinct ICH-aligned test conditions (e.g., 25 °C/60 %RH long-term + 40 °C/75 %RH accelerated) without cross-contamination or thermal/hygrometric interference.
• Centralized networked supervision: Up to 30 units can be managed via a single Windows-based workstation using standard TCP/IP over Ethernet; remote access supports real-time parameter adjustment, alarm acknowledgment, and firmware updates via secure HTTPS interface.
• Triple-layer data integrity architecture: (1) On-device thermal printer (user-configurable print interval); (2) Internal 64 MB non-volatile memory with circular buffering—stores setpoints, measured values, timestamps, and real-time clock data; at 1-minute sampling, >10 years of continuous logging capacity; (3) RS485 Modbus RTU output to external SCADA or LIMS systems with timestamp-synchronized records.
• Energy-optimized thermal management: Inverter-driven compressors, high-efficiency EC fans, and intelligent defrost cycling reduce power consumption by up to 35 % versus fixed-speed equivalents; acoustic noise level ≤52 dB(A) during steady-state operation.
• Dual-door ergonomic design: Tempered glass inner door enables full visual inspection without disturbing chamber equilibrium; outer mechanical keyed lock prevents unauthorized access per GMP Annex 11 and ALCOA+ data governance principles.
• Comprehensive safety interlocks: Independent overtemperature cutoff per chamber, dry-run protection for humidifier reservoir, compressor overload monitoring, and GSM-based SMS alerting (configurable thresholds for temperature, humidity, power failure, door open).

Sample Compatibility & Compliance

The SHH-SSD-2TA accommodates standard stability storage configurations including ICH-compliant aluminum foil–wrapped trays, amber glass vials, blister packs, and IV bags mounted on light-shielded racks (optional UV-filtered illumination available). Chamber interiors are constructed from electropolished 304 stainless steel with rounded corners to support cleaning validation per ISO 14644-1 Class 8 and facilitate residue-free decontamination. All electronic subsystems comply with IEC 61000-4 electromagnetic compatibility standards; controller firmware adheres to IEC 62304 Class B software lifecycle requirements. Full IQ/OQ documentation packages—including protocol templates, calibration certificates traceable to NIST standards, and raw sensor verification reports—are provided to support 21 CFR Part 11 compliance and audit readiness.

Software & Data Management

The embedded controller runs a deterministic real-time OS with embedded SQLite database engine. Data export supports CSV and PDF formats; SD card extraction yields timestamped .bin files convertible via YSEI’s validated PC utility (v3.2.1, 21 CFR Part 11 compliant with electronic signature, audit trail, and role-based access control). Remote sessions maintain immutable log entries for all user actions (login/logout, setpoint changes, alarm acknowledgments) with millisecond-level precision. Optional integration with LabVantage LIMS or Waters Empower via OPC UA enables automated metadata injection into electronic batch records.

Applications

• ICH Q1A(R2) long-term (25 °C/60 %RH) and accelerated (40 °C/75 %RH) stability testing for API and finished dosage forms.
• ICH Q1B photostability pre-screening when paired with optional ICH-compliant light cabinets (not included).
• Low-humidity stress testing (40 °C/20 %RH) for large-volume parenterals and hygroscopic lyophilized products.
• Forced degradation studies under controlled oxidative, thermal, and hydrolytic conditions.
• Academic research and teaching labs requiring reproducible environmental exposure platforms aligned with regulatory expectations.

FAQ

Does the system support 21 CFR Part 11-compliant electronic records and signatures?
Yes—the optional PC software package includes full Part 11 functionality: audit trail with immutable timestamps, operator authentication via username/password + digital certificate, and electronic signature workflows for OQ report approval.
Can humidity be maintained below 30 %RH at elevated temperatures?
Yes—steam-based humidification combined with active desiccant-assisted drying enables stable operation at 40 °C/20 %RH, verified per ICH Q1A(R2) Annex 2.
What is the validation support scope for IQ/OQ?
YSEI provides factory-verified IQ/OQ protocols, executed test records, calibration certificates (NIST-traceable thermistors and capacitive RH sensors), and a URS cross-reference matrix—all delivered in editable Word/PDF format.
Is remote firmware update capability available?
Yes—secure HTTPS-based OTA updates are supported; version history and rollback functionality are embedded in the controller OS.
What environmental conditions are required for installation?
Ambient temperature: 5–35 °C; relative humidity: ≤85 %RH non-condensing; minimum clearance: 100 mm rear, 50 mm sides; dedicated 20 A circuit recommended.