HePu LHH-250SD Drug Stability Testing Chamber

Overview

The HePu LHH-250SD Drug Stability Testing Chamber is a precision-engineered environmental simulation system designed specifically for pharmaceutical stability studies in compliance with international regulatory frameworks. It operates on the principle of balanced temperature and humidity control—achieving dynamic equilibrium between refrigeration, heating, humidification, and dehumidification subsystems to maintain highly reproducible test conditions over extended durations. This architecture ensures minimal thermal and hygroscopic gradients across the working chamber, critical for generating data that meets ICH Q1A(R2) requirements for accelerated, intermediate, and long-term stability protocols. The chamber is validated for use in GLP-compliant laboratories and supports full traceability when integrated with audit-trail-capable data management systems.

Key Features

• 304 stainless steel inner chamber with fully radiused corners for seamless cleaning and reduced microbial retention—meets cGMP surface hygiene standards.
• Imported hermetically sealed industrial-grade compressor delivering stable cooling performance across the full 0–65 °C range, with low vibration and extended service life.
• High-accuracy capacitive relative humidity sensor (±3 %RH tolerance) coupled with PID-controlled steam humidification and solid-state dehumidification for precise moisture regulation between 40–95 %RH.
• Advanced programmable touchscreen controller supporting up to 99 segmented cycles, each with independent setpoints for temperature, humidity, ramp rates, and dwell times—enabling full ICH protocol automation (e.g., 40 °C/75 %RH for 6 months).
• Optimized air circulation system featuring rear-mounted centrifugal fan and multi-directional ducting to ensure uniform airflow distribution (±0.5 °C spatial uniformity per ICH Q1A Annex 2 verification methodology).
• Dedicated 25 mm diameter access port on the left chamber wall, fitted with silicone gasket and plug—facilitating real-time monitoring of samples via external probes without compromising chamber integrity.

Sample Compatibility & Compliance

The LHH-250SD accommodates standard pharmaceutical packaging formats—including blister packs, HDPE bottles, glass vials, and aluminum tubes—on four adjustable 304 stainless steel shelves (load capacity: 15 kg/shelf). Its chamber volume (0.258 m³ net) satisfies minimum sample spacing requirements outlined in ICH Q5C and USP . The system is factory-calibrated and documented per ISO/IEC 17025 principles; calibration certificates include as-found/as-left data for temperature and humidity sensors at three points across the operational range. It conforms to Chinese Pharmacopoeia (2005 Edition) Stability Testing Guidelines, GB 10586–2006 “Environmental Test Equipment—General Technical Conditions”, and supports 21 CFR Part 11 readiness when paired with compliant software and electronic signature modules.

Software & Data Management

While the base unit features an embedded touchscreen HMI with onboard event logging (start/stop timestamps, deviation alarms, cycle completion flags), optional RS485/Modbus RTU or Ethernet interfaces enable integration with laboratory information management systems (LIMS) or SCADA platforms. Raw sensor data—including real-time temperature, RH, compressor status, and door-open events—is timestamped and exportable in CSV format. When configured with the optional SMS alert module, users receive immediate notifications upon threshold breaches (e.g., >±1.0 °C deviation for >5 min), power failure, or door-open duration exceeding preset limits. All digital records support audit trail generation with user ID, action type, and timestamp—aligned with ALCOA+ data integrity principles.

Applications

• ICH Q1A(R2)-compliant accelerated stability testing (40 °C ±2 °C / 75 %RH ±5 %RH, 6 months)
• Intermediate condition studies (30 °C ±2 °C / 65 %RH ±5 %RH) for products sensitive to high-temperature stress
• Long-term storage condition validation (25 °C ±2 °C / 60 %RH ±5 %RH or 30 °C ±2 °C / 65 %RH ±5 %RH)
• Bracketing and matrixing study execution per ICH Q5C guidelines
• Excipient compatibility screening under controlled humidity exposure
• Stability-indicating method development support through forced degradation condition simulation

FAQ

Does the LHH-250SD meet ICH Q1A(R2) qualification requirements for regulatory submissions?
Yes—the chamber’s temperature and humidity uniformity, stability, and control accuracy are verified per ICH Q1A Annex 2 and documented in its Factory Acceptance Test (FAT) report.
Can the system be calibrated by third-party ISO/IEC 17025-accredited labs?
Absolutely—sensor ports and electrical interfaces comply with ASTM E2875-13, enabling field calibration using NIST-traceable reference standards.
Is remote monitoring supported out of the box?
Remote viewing requires optional communication interface hardware and configuration; basic local data export (USB) is standard.
What maintenance intervals are recommended for the compressor and humidity system?
Compressor oil inspection every 24 months; desiccant replacement in the dehumidification module every 18 months under continuous operation.
Are validation documents (IQ/OQ/PQ protocols) provided?
Standard FAT documentation is included; site-specific IQ/OQ/PQ templates compliant with Annex 15 and WHO TRS 986 are available upon request.