Labonce Labonce-720RC Pharmaceutical Low-Temperature Stability Chamber

Overview

The Labonce Labonce-720RC Pharmaceutical Low-Temperature Stability Chamber is an engineered environmental test system designed specifically for long-term stability studies and cold-chain storage of temperature-sensitive pharmaceuticals, biologics, reference standards, and clinical trial materials under controlled refrigerated conditions (5 ± 1 °C). It operates on a dual-compressor refrigeration architecture—comprising one active unit and one standby unit—to ensure uninterrupted thermal performance during scheduled maintenance or unexpected compressor failure. This redundancy aligns with ICH Q5C and WHO TRS No. 961 Annex 9 requirements for continuous monitoring in stability testing programs. The chamber employs a precision-engineered air distribution system with rear-mounted centrifugal fans and multi-directional diffusers to achieve uniform airflow across all shelf levels, minimizing vertical and horizontal thermal gradients. Its structural integrity is reinforced by ≥80 mm thick high-density polyurethane insulation (foamed-in-place), contributing to low thermal leakage (<0.8 W/m²·K) and stable cabinet recovery after door openings.

Key Features

• Dual-compressor refrigeration system with automatic failover—ensures uninterrupted operation and meets GLP/GMP continuity-of-service expectations;
• Programmable color touchscreen controller supporting up to 99 programmable segments, real-time data logging (internal SD card + optional USB export), and electronic audit trail compliant with FDA 21 CFR Part 11 requirements;
• Mirror-finish AISI 304 stainless steel interior (electropolished finish available upon request) for corrosion resistance, non-porous surface integrity, and ease of cleaning validation;
• Triple-level access control (Operator / Supervisor / Administrator) with password protection and role-based function restriction;
• Integrated alarm management: local audible alarm, visual status indicators, and configurable SMS alerts via GSM module for temperature deviation (>±0.8 °C), power interruption, door open >60 s, and compressor fault;
• Standard equipment includes four adjustable stainless steel shelves, two 50-mm-diameter test ports with silicone rubber plugs, heavy-duty casters with locking brakes, and a mechanical door lock with key override;
• Compliance-ready documentation package: IQ/OQ templates, calibration certificate (NIST-traceable probe), and factory performance verification report per YY/T 0086–2020.

Sample Compatibility & Compliance

The Labonce-720RC accommodates standard ISO/IEC 17025-compliant stability sample configurations—including stacked trays, vial racks, blister packs, and primary packaging units—across its 750 L internal volume. Its validated temperature uniformity (≤1.0 °C) and stability (±0.5 °C fluctuation) meet the stringent spatial and temporal criteria specified in ICH Q1A(R2), USP , and EP 2.2.42 for refrigerated stability chambers. The unit is certified to YY/T 0086–2020 (Medical Refrigerators), and its design incorporates features required for regulatory submissions: time-stamped event logs, user action traceability, alarm acknowledgment history, and password-protected parameter modification. Optional IQ/OQ/PQ support services are available through Labonce’s global network of qualified service engineers.

Software & Data Management

The embedded controller runs firmware version 3.2+ with embedded SQLite database for secure storage of ≥12 months of minute-interval temperature readings (configurable sampling interval: 1–60 min). Data export is supported via USB 2.0 (CSV format) or RS232 (Modbus RTU protocol) for integration into LIMS or ELN platforms. An optional cloud-enabled gateway permits remote monitoring via TLS-encrypted web interface, including real-time dashboard visualization, customizable alert thresholds, and automated daily report generation. All electronic records retain immutable timestamps, user IDs, and change justification fields—fully satisfying ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• ICH-compliant accelerated and long-term stability testing of APIs, finished dosage forms, and sterile products at 5 °C ±1 °C;
• Storage of monoclonal antibodies, recombinant proteins, mRNA intermediates, and other thermolabile biopharmaceuticals requiring strict cold-chain adherence;
• Reference standard storage under pharmacopoeial conditions (e.g., USP , Ph. Eur. 2.2.42);
• QC sample hold rooms for retained batches awaiting release testing;
• Clinical supply chain staging environments where ambient temperature excursions must be minimized prior to distribution;
• Regulatory submission support: documented evidence of chamber qualification, ongoing performance verification, and deviation response records.

FAQ

What is the recommended calibration frequency for the Labonce-720RC?
Annual calibration using NIST-traceable reference probes is recommended; however, users operating under GMP must perform calibration before each stability study cycle and after any major maintenance event.
Does the Labonce-720RC support 21 CFR Part 11 compliance out of the box?
Yes—the controller provides electronic signatures, audit trail logging, and role-based access control as standard features; full Part 11 implementation requires site-specific configuration and validation documentation.
Can the chamber operate continuously at 5 °C in ambient environments up to 30 °C?
Yes—its dual-compressor design and optimized condenser airflow ensure stable operation within the specified ambient range (+5 °C to +30 °C) without derating.
Is the internal temperature mapping performed during factory qualification?
Yes—each unit undergoes 24-hour thermal mapping using ≥15 calibrated thermocouples per ICH Q5C Annex 1 guidance, with final report included in the delivery documentation.
What is the warranty coverage for the refrigeration system?
Labonce provides a 36-month limited warranty on compressors and sealed refrigeration components, extendable to 60 months under annual preventive maintenance contracts.