Boxun BXY-250S Drug Stability Testing Chamber

Overview

The Boxun BXY-250S Drug Stability Testing Chamber is an engineered environmental simulation system designed to meet the stringent requirements of ICH Q1–Q5 guidelines for pharmaceutical stability testing. It provides precise, long-term control of temperature (−10 to 85 °C), relative humidity (15–98 %RH), and optional light exposure—enabling accelerated, intermediate, and long-term stability studies in compliance with regulatory expectations from the U.S. FDA, EMA, PMDA, and NMPA. The chamber employs a dual-loop, fuzzy PID control architecture coupled with a variable-frequency refrigeration system and C.H. (Circulating Heat) energy recovery technology to minimize thermal overshoot, reduce stabilization time, and ensure high reproducibility across repeated test cycles. Its robust stainless-steel inner chamber, double-glazed observation door, and seamless welded construction support GMP-aligned cleaning and maintenance protocols.

Key Features

• 7-inch high-resolution capacitive touchscreen interface running on Windows CE OS with 512 MB RAM and high-frequency ARM Cortex processor for responsive multi-task operation
• 30-stage × 99-cycle programmable profile capability, supporting complex ICH-defined stress conditions (e.g., 40 °C/75 %RH for 6 months, 25 °C/60 %RH for 12 months)
• Imported high-accuracy capacitive humidity sensors (±1.5 %RH typical) and PT1000 temperature probes (±0.15 °C at 25 °C) calibrated traceably to national standards
• Energy-efficient hermetic compressor with eco-friendly R134a refrigerant and optimized air circulation via imported EC centrifugal fans
• Real-time data logging: 1,000,000-point internal memory; viewable as tabular history (last 1600 entries) or dynamic trend curves (6.5-hour rolling window)
• Comprehensive safety architecture: independent overtemperature cutoff, door-open alarm, low-water-level detection, sensor fault diagnostics, and audible/visual alerts
• Full audit trail support: all parameter changes, power events, alarms, and user actions timestamped and exportable via USB—including metadata compliant with 21 CFR Part 11 requirements when paired with FDA edition software

Sample Compatibility & Compliance

The BXY-250S accommodates diverse pharmaceutical sample formats—including blister packs, vials, ampoules, syringes, sachets, and bulk powder containers—on up to 12 adjustable stainless-steel shelves (standard: 3). Its uniform airflow design (±1 °C spatial variation at 25 °C) and low-vibration platform prevent mechanical disturbance to sensitive biologics or suspension formulations. The system supports full qualification per GMP Annex 15: Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) documentation packages are available upon request. Optional wireless temperature/humidity loggers—supplied with NIST-traceable calibration certificates at three points (0 °C, 60 °C, 121 °C for temperature; 15 °C/40 %RH, 20 °C/60 %RH, 30 °C/80 %RH for humidity)—enable concurrent mapping and verification of chamber performance per ISO 14644-3 and ASTM E2251.

Software & Data Management

Embedded firmware enables local configuration, real-time monitoring, and event-triggered data export without external PCs. For centralized laboratory management, optional FDA Edition and GMP Edition monitoring software provide remote supervision via Ethernet or Wi-Fi, role-based user access control, electronic signatures, and automated report generation (PDF/CSV/XLSX). All logged data include ISO 8601 timestamps, operator IDs, and contextual metadata required for GLP/GMP audits. USB export preserves full audit integrity: each file contains raw sensor values, alarm logs, setpoint histories, and system status flags—all digitally signed and tamper-evident. RS232 and RS485 ports support integration into LIMS or MES environments using Modbus RTU protocol.

Applications

• ICH Q1A(R3)–Q1E accelerated and real-time stability protocols for drug substance and product
• Photostability testing per ICH Q5C (when equipped with UV/visible light modules)
• Excipient compatibility screening under controlled hygrothermal stress
• Package integrity evaluation under cyclic humidity conditions
• Biological product storage condition validation (e.g., 2–8 °C, 15–25 °C, or frozen profiles)
• Reference standard storage under ICH Q5D-specified ambient conditions
• Pre-formulation studies involving moisture sorption isotherm analysis

FAQ

Does the BXY-250S comply with 21 CFR Part 11 requirements?
Yes—when used with the optional FDA Edition monitoring software, the system supports electronic signatures, audit trails, and secure user authentication aligned with Part 11 Subpart B controls.
Can the chamber be validated for GMP use?
Yes. Comprehensive IQ/OQ/PQ documentation packages—including test protocols, acceptance criteria, and executed reports—are available as an optional add-on.
What calibration certificates are provided with optional wireless loggers?
Each logger ships with a manufacturer-issued calibration certificate traceable to CNAS-accredited laboratories, covering three temperature points (0 °C, 60 °C, 121 °C) and three RH combinations (15 °C/40 %RH, 20 °C/60 %RH, 30 °C/80 %RH).
Is remote monitoring supported out of the box?
Local touchscreen operation is standard; remote supervision requires optional software licensing and network interface configuration (Ethernet/Wi-Fi).
How is data integrity ensured during power interruption?
All measurements are buffered in non-volatile memory; no data loss occurs during brief outages. Full event logs—including power cycle timestamps—are retained and exportable post-recovery.