YSEI SHH-SDF-2TA Multi-Chamber Drug Stability Testing System

Overview

The YSEI SHH-SDF-2TA Multi-Chamber Drug Stability Testing System is an engineered environmental simulation platform designed specifically for pharmaceutical stability studies in compliance with ICH Q1–Q5 guidelines, United States Pharmacopeia (USP) , European Pharmacopoeia (Ph. Eur.) 2.9.40, and FDA 21 CFR Part 11 requirements. It implements a multi-compartment architecture—comprising two independently controlled climate chambers—to simultaneously execute long-term, accelerated, intermediate, and stress condition testing protocols (e.g., 40°C/20% RH for large-volume parenterals). Each chamber features precision-controlled temperature (±0.3°C uniformity), relative humidity (±2.0% RH accuracy), and photometric monitoring per ICH Q1B photo-stability criteria. The system operates on a dual-loop PID control architecture with redundant sensor inputs and real-time deviation logging, ensuring data integrity across extended test durations up to 36 months.

Key Features

• Independent dual-chamber operation: Enables concurrent execution of distinct ICH-compliant protocols—e.g., one chamber at 25°C/60% RH (long-term), the other at 40°C/20% RH (low-humidity stress)—without cross-contamination or thermal/hygrometric interference.
• Centralized control & remote supervision: Integrates via RS485 Modbus RTU into a unified SCADA interface; supports up to 30 units on a single network; enables secure web-based remote configuration, alarm acknowledgment, and live parameter viewing through TLS-encrypted HTTPS.
• Triple-layer data recording architecture: (1) Real-time USB/RS485 digital export to validated PC-based acquisition software; (2) Internal 64 MB circular buffer storing setpoints, actual values, timestamps, and event logs at user-defined intervals (1 min minimum); (3) Optional thermal printer with adjustable print cycles for audit-ready hardcopy output.
• Energy-optimized thermal management: Uses high-efficiency scroll compressors, EC fan motors, and intelligent defrost cycling—achieving ≤2.8 kW average power draw during 40°C/75% RH continuous operation.
• Human-centric operational design: 7-inch capacitive touchscreen HMI with multilingual GUI (English, Chinese, Spanish), dual-door structure (tempered glass inner door + keyed outer door), and acoustic noise emission <52 dB(A) at 1 m.
• Comprehensive safety redundancy: Independent overtemperature cutoff per chamber, dry-run protection for humidification system, compressor overload relay, and GSM-based SMS alerting for power failure, sensor fault, or excursion beyond ±1.5°C / ±5% RH thresholds.

Sample Compatibility & Compliance

The SHH-SDF-2TA accommodates standard ICH-compliant sample racks (up to 4×400 mm × 300 mm trays per chamber) and supports photostability testing when equipped with optional UV/visible light modules meeting ICH Q1B irradiance specifications (200 Wh/m² UV, 1.2 million lx·h visible). All firmware and controller logic are architected to support ALCOA+ data governance principles. Full IQ/OQ documentation packages—including protocol templates, executed reports, calibration certificates traceable to NIM (National Institute of Metrology, China), and electronic signature workflows compliant with 21 CFR Part 11 Annex 11—are provided upon request. System validation aligns with ISO 14644-1 (cleanroom classification not applicable), ISO 9001:2015, and GMP Annex 15 requirements.

Software & Data Management

Data acquisition and reporting utilize YSEI’s proprietary StabilityTrack™ v3.2 software—validated for Windows 10/11 (64-bit), supporting automated PDF report generation with embedded digital signatures, electronic audit trails, and role-based access control (RBAC). Raw datasets export in CSV/Excel-compatible format with ISO 8601 timestamps. The controller’s internal SD card slot accepts industrial-grade microSDHC cards (up to 128 GB) for encrypted offline archival. All data streams—controller logs, PC acquisition files, and printed records—are synchronized via NTP server time stamping to ensure chronological consistency required for regulatory submissions.

Applications

• ICH Q1A(R2) long-term stability studies (25°C/60% RH, 30°C/65% RH)
• ICH Q1B photostability assessment under controlled irradiation
• Accelerated testing per Q1A(R2) (40°C/75% RH, 50°C/ambient RH)
• Low-humidity stress testing for lyophilized products and large-volume IV solutions (40°C/20% RH)
• Intermediate condition evaluation (30°C/65% RH)
• Forced degradation studies supporting ICH Q5C biopharmaceutical comparability
• Academic research and GxP training environments requiring multi-parameter environmental replication

FAQ

Does the SHH-SDF-2TA meet FDA 21 CFR Part 11 requirements for electronic records and signatures?
Yes—the system includes configurable audit trail logging, electronic signature capability with dual authentication, and immutable record retention mechanisms fully documented in the supplied Part 11 compliance dossier.
Can humidity be maintained stably at 20% RH across the full temperature range?
Yes—via dedicated desiccant-assisted humidification control, validated down to 10% RH at 40°C with ±2.0% RH accuracy and ≤0.5% RH/h drift.
What is the maximum data retention period for internal memory storage?
At 1-minute sampling interval, the 64 MB circular buffer retains approximately 10 years of timestamped setpoint/actual value history; external SD card storage duration is capacity-dependent.
Is IQ/OQ validation support included with purchase?
Yes—YSEI provides pre-qualified IQ/OQ protocols, execution services by certified field engineers, and final signed reports compliant with EU GMP Annex 15 and WHO TRS 986.
How many chambers can be networked and monitored from a single workstation?
Up to 30 SHH-series units may be integrated into one StabilityTrack™ instance using standard RS485 daisy-chaining with optional Ethernet gateway.