YSEI SHH-SD Series Drug Stability Testing Chamber
| Brand | YSEI |
|---|---|
| Origin | Chongqing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | SHH-SD Series |
| Price Range | USD 2,800 – 7,000 |
| Temperature Range | 0°C to 60°C (standard), extended capability to 40°C at 20% RH |
| Humidity Range | 10%–85% RH |
| Uniformity | ±0.5°C temperature / ±3% RH humidity (at setpoint, within working volume) |
| Control Accuracy | ±0.3°C / ±2% RH |
| Power Consumption | ≤1.8 kW (typical at 40°C/75% RH with single compressor active) |
| Ambient Operating Conditions | 5–35°C ambient temperature, ≤85% RH non-condensing |
| Noise Level | ≤55 dB(A) at 1 m |
| Data Recording | Integrated thermal printer with user-adjustable print interval (1 min to 24 h) |
| Safety Protections | Independent overtemperature cutoff, dry-run protection for humidifier, compressor overload relay, dual-stage door switch interlock |
| Remote Alerting | GSM-based SMS alarm for power failure, temperature deviation (>±2°C), humidity deviation (>±5% RH), configurable per chamber and scalable to multi-unit fleet management |
Overview
The YSEI SHH-SD Series Drug Stability Testing Chamber is an engineered environmental simulation system designed explicitly for pharmaceutical stability studies in compliance with ICH Q1–Q5 guidelines, USP , and Chinese Pharmacopoeia (ChP) Chapter 9001. It operates on a precision-controlled forced-air convection principle, integrating dual PID-regulated refrigeration, steam-based humidification, and resistive heating to maintain tightly specified temperature and relative humidity profiles across the entire working volume. Unlike general-purpose climate chambers, the SHH-SD series incorporates structural and control optimizations essential for regulatory-grade stability testing—namely, minimized thermal lag, reduced humidity overshoot during step changes, and long-term drift stability (<±0.1°C/1000 h at 40°C). Its architecture supports all ICH-defined storage conditions: Long-Term (25°C/60% RH), Accelerated (40°C/75% RH), Intermediate (30°C/65% RH), and Low-Humidity Stress Testing (e.g., 40°C/20% RH for large-volume parenterals), with documented validation support packages available upon request.
Key Features
- Regulatory-Ready Environmental Control: Dual-sensor feedback loop with NIST-traceable Pt100 RTD sensors (temperature) and capacitive polymer hygrometers (humidity), calibrated per ISO/IEC 17025-accredited procedures.
- Thermal & Humidity Uniformity: Optimized airflow distribution via rear-mounted centrifugal blower and perforated stainless-steel shelving ensures ≤±0.5°C spatial variation and ≤±3% RH deviation across full load (per ICH Q1A Annex 2 verification protocol).
- Fail-Safe Protection Architecture: Redundant safety layers include independent mechanical overtemperature cutout (separate from main controller), humidifier dry-run detection with auto-shutdown, compressor high-pressure/overcurrent relays, and electromechanical door interlock disabling operation when unlatched.
- GSM-Based Remote Monitoring: Integrated SIM-enabled module delivers real-time SMS alerts for critical events—including power interruption, sustained excursion beyond user-defined thresholds (configurable ±0.5°C to ±3.0°C and ±2% to ±8% RH), and hardware fault codes—enabling 24/7 oversight without dependency on local network infrastructure.
- Eco-Efficient Operation: Variable-speed compressor drive and adaptive heater modulation reduce average power draw by up to 32% versus fixed-speed equivalents under cyclic load; acoustic enclosure design limits operational noise to ≤55 dB(A), suitable for shared laboratory environments.
Sample Compatibility & Compliance
The SHH-SD chamber accommodates standard pharmaceutical packaging formats—including blister cards, HDPE bottles, glass vials, and IV bags—on adjustable 304 stainless-steel shelves (load capacity: 60 kg per shelf, max. 5 shelves). It meets mechanical and environmental requirements for GMP-aligned stability storage per WHO TRS 992 Annex 6 and EU GMP Annex 15. All firmware and control logic are structured to support ALCOA+ data integrity principles: audit trails record operator ID, parameter changes, alarm acknowledgments, and print events with immutable timestamps. Full 21 CFR Part 11 readiness is achievable via optional software add-on enabling electronic signatures, role-based access control, and encrypted database logging.
Software & Data Management
While the base unit operates via intuitive membrane keypad interface with real-time graphical display, optional YSEI StabilityLink™ PC software enables centralized configuration, remote monitoring, and automated report generation (PDF/CSV). The system logs all environmental parameters at user-selectable intervals (1 s to 60 min), stores ≥12 months of raw data onboard (expandable via USB), and exports timestamped records compliant with FDA eCTD Module 5.2.4 requirements. Thermal printer output includes chamber ID, date/time stamp, setpoint vs. actual values, and alarm status—fully traceable for inspection readiness.
Applications
- ICH Q1A(R3) long-term and accelerated stability protocols for new drug applications (NDAs) and marketing authorization applications (MAAs)
- Bracketing and matrixing study designs per ICH Q5C
- Photostability pre-screening (when integrated with optional UV/visible light modules)
- Excipient compatibility assessment under controlled humidity stress
- Stability-indicating method development support through controlled degradation condition replication
- Storage condition qualification for warehouse and distribution center mapping
FAQ
Does the SHH-SD series support 20% RH operation at 40°C?
Yes. The chamber achieves and maintains 40°C/20% RH using desiccant-assisted dehumidification combined with precise refrigerant subcooling control—validated per ICH Q1B Annex 1 test procedure.
Is the thermal printer output compliant with FDA 21 CFR Part 11?
The printed record itself is a compliant archival medium; electronic records require optional StabilityLink™ software with Part 11 configuration enabled.
Can multiple SHH-SD units be managed from a single workstation?
Yes. StabilityLink™ supports concurrent monitoring and control of up to 32 chambers via TCP/IP or GSM gateway, with consolidated alarm dashboards and cross-chamber trend analysis.
What calibration documentation is supplied with shipment?
Each unit ships with factory calibration certificate (temperature/humidity), sensor traceability statement to NIM (National Institute of Metrology, China), and IQ/OQ checklist templates aligned with ASTM E2500-13.
Is installation support available outside mainland China?
YSEI provides remote commissioning guidance and validation protocol templates globally; on-site IQ/OQ services are available through authorized partners in APAC, EMEA, and LATAM regions.
