Labonce Labonce-620GS-FC Two-Chamber Drug Stability Testing Chamber

Overview

The Labonce Labonce-620GS-FC Two-Chamber Drug Stability Testing Chamber is an engineered environmental simulation system designed to meet the stringent requirements of pharmaceutical stability testing under ICH Q1–Q5 guidelines and the Chinese Pharmacopoeia (2020 Edition). Unlike single- or three-chamber configurations, this two-chamber architecture isolates temperature-humidity conditioning from photostability exposure—enabling concurrent yet independent execution of long-term, accelerated, and intermediate condition studies per ICH Q1A(R3), while maintaining full compliance with GMP and cGMP validation frameworks. The chamber operates on a dual-zone principle: one chamber maintains precise thermo-hygrometric control (15–65°C, 20–95% RH), while the second chamber—though not equipped with illumination in the GS-FC variant—is structurally identical and thermally decoupled, allowing for parallel testing under identical ambient conditions or for backup/rotation use. Its core measurement and control architecture is built around closed-loop feedback using high-stability capacitive humidity sensors and PT100-class temperature probes, ensuring traceable, reproducible environmental profiles essential for regulatory submissions to NMPA, FDA, EMA, and PMDA.

Key Features

• Imported hermetic variable-frequency compressor system delivering >50% energy and water savings versus fixed-speed alternatives, with intelligent load-matching modulation across ambient temperatures of +5°C to +35°C
• Triple-tier user access control with role-based authentication (Administrator, Supervisor, Operator) via username/password login; all session actions logged with timestamp, user ID, and parameter change history
• Auditable electronic record system compliant with ALCOA+ principles: full audit trail for setpoint modifications, alarm events, door openings, and calibration interventions; exportable to USB in immutable .csv format
• 7-inch full-color programmable touchscreen controller with real-time display of compressor output ratio, PID tuning status, and deviation alarms
• Double-door thermal barrier design: inner tempered glass door enables non-intrusive sample observation without compromising chamber integrity; outer solid insulated door minimizes radiant heat exchange and light ingress
• High-density polyurethane foam insulation (≥120 mm thickness) with seamless foaming process ensures thermal stability (±0.5°C temperature fluctuation, ±1.0°C uniformity) and hygric retention (±2% RH fluctuation, ±3% RH uniformity)
• Corrosion-resistant interior constructed entirely from mirror-finish AISI 304 stainless steel; exterior powder-coated cold-rolled steel chassis with reinforced structural rigidity
• Comprehensive safety architecture: independent overtemperature cut-off, refrigerant high-pressure/overheat protection, low-water level detection, dry-run prevention for humidifier, and phase-loss monitoring

Sample Compatibility & Compliance

The Labonce-620GS-FC accommodates standard pharmaceutical packaging formats—including blister packs, HDPE bottles, vials, and sachets—within its 300 L working volume (600 × 500 × 1000 mm internal dimensions). Its environmental performance adheres to ICH Q1B photostability testing prerequisites when paired with external irradiation modules (not included in GS-FC configuration), and fully satisfies the temperature/humidity tolerance limits defined in USP , EP 2.2.45, and ISO 14644-3 for cleanroom-compatible stability storage. All firmware logic and data handling routines are architected to support 21 CFR Part 11 readiness, including electronic signatures, audit trail retention ≥10 years, and system-generated checksums for exported datasets. Validation documentation packages—including IQ/OQ protocols, sensor calibration certificates (NIST-traceable), and uncertainty budgets—are available upon request to support GLP/GMP audits.

Software & Data Management

Embedded controller firmware supports continuous logging of temperature, relative humidity, compressor duty cycle, and alarm states at user-selectable intervals (1–60 min). Data is retained internally for ≥180 days and synchronized to optional network-connected NAS or LIMS via RS485/Modbus RTU or Ethernet TCP/IP. A built-in thermal printer provides immediate hardcopy output of test logs, alarm summaries, and daily summary reports in time-stamped format. Export functionality includes CSV-formatted raw data files with column headers aligned to CDISC SDTM standards (e.g., “TIMESTAMP”, “CHAMBER_A_TEMP_C”, “CHAMBER_A_RH_PCT”), facilitating direct ingestion into statistical analysis platforms such as JMP, SAS, or Python-based stability modeling tools (e.g., ASTM E2709-compliant shelf-life estimation).

Applications

• ICH Q1A(R3)-compliant long-term (25°C/60% RH) and accelerated (40°C/75% RH) stability studies for APIs and finished dosage forms
• Intermediate condition testing (30°C/65% RH) per ICH Q5C recommendations for biologics and sensitive formulations
• Bracketing and matrixing study designs requiring simultaneous multi-condition exposure
• Excipient compatibility screening under controlled hygrothermal stress
• Reference standard storage under pharmacopoeial-specified conditions (e.g., USP General Chapter )
• Environmental qualification of warehouse and logistics staging areas

FAQ

Does the Labonce-620GS-FC comply with 21 CFR Part 11 requirements?
Yes—the system implements role-based electronic signatures, immutable audit trails, and export controls aligned with FDA expectations for electronic records. Full Part 11 readiness requires site-specific configuration validation and SOP alignment.
What is the maximum allowable ambient temperature for stable operation?
The unit is rated for continuous operation in ambient environments between +5°C and +35°C, with derating applied above 30°C per manufacturer’s thermal management specifications.
Can humidity be maintained at 95% RH across the full temperature range?
Humidity control to 95% RH is guaranteed within 15–40°C; at 65°C, maximum achievable RH is approximately 85% due to saturation limit constraints.
Is third-party calibration certification included with delivery?
Factory calibration certificates (traceable to CNAS-accredited labs) are provided; on-site NIST-traceable calibration by qualified service engineers is available as an optional add-on.
How many data points can the internal memory store?
The controller retains up to 1 million timestamped records (temperature + humidity), equivalent to ~180 days of logging at 10-minute intervals.