Labthink C650B Handheld Headspace Oxygen Analyzer

Overview

The Labthink C650B Handheld Headspace Oxygen Analyzer is a portable, field-deployable instrument engineered for rapid, non-destructive quantification of residual oxygen (O₂) and optional carbon dioxide (CO₂) concentrations in the headspace of sealed packaging—ranging from flexible pouches and blister packs to rigid containers such as cans, bottles, vials, and aseptic cartons. It operates on dual-sensor electrochemical (O₂) and solid-state non-dispersive infrared (NDIR) (CO₂) detection principles, delivering trace-level accuracy under ambient or controlled environmental conditions. Designed for integration into packaging quality assurance workflows, the C650B supports real-time decision-making during production line validation, warehouse incoming inspection, and laboratory-based stability studies. Its compact form factor and battery-independent AC operation ensure stable performance across manufacturing floors, cold storage facilities, and regulated R&D environments without compromising measurement fidelity.

Key Features

• Handheld ergonomic design with industrial-grade capacitive touchscreen interface—enabling one-handed operation and intuitive navigation in glove-compatible environments.
• Automated zero-point calibration via one-touch function; built-in auto-shutdown after 10 minutes of inactivity to conserve energy and extend sensor longevity.
• Modular gas sensor architecture: Standard electrochemical O₂ sensor (0–100%, 0.1% resolution, ±0.3% accuracy); optional NDIR-based CO₂ sensor (0–100%, 0.01% resolution, ±(0.03% + 5% of reading) accuracy), certified for >15-year operational lifetime.
• Integrated absolute pressure transducer for simultaneous vacuum level assessment—critical for evaluating seal integrity and modified atmosphere packaging (MAP) process consistency.
• Quick-connect sampling needle with disposable protective sleeve ensures operator safety, minimizes cross-contamination, and complies with ISO 8573-1 Class 4 particulate requirements.
• Onboard data logging capacity of up to 1,200 test records with timestamp, sample ID, O₂/CO₂ values, pressure reading, and environmental temperature—retained during power loss via non-volatile memory.

Sample Compatibility & Compliance

The C650B accommodates a broad spectrum of package geometries and material types—including polymeric laminates, aluminum foils, glass vials, metal cans, PET bottles, and Tetra Pak® cartons—without requiring destructive puncturing beyond standard headspace sampling protocols. It meets functional equivalency benchmarks referenced in ASTM F2476 (Standard Test Method for Determining Oxygen Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor), ISO 11671 (Plastics — Determination of oxygen permeability of plastic films and sheets), and USP Packaging Integrity Evaluation. While not a GMP-certified device per se, its audit-ready data structure—including immutable timestamps, user login tracking (via optional PC software), and exportable CSV reports—supports alignment with FDA 21 CFR Part 11 requirements when deployed within validated analytical procedures.

Software & Data Management

The analyzer interfaces seamlessly with Labthink’s proprietary ControlSoft™ PC application via USB 2.0, enabling remote firmware updates, batch report generation, statistical process control (SPC) charting, and database synchronization. All stored measurements are exportable in comma-separated (.csv) format for integration into LIMS or ERP systems. Optional wireless thermal micro-printer support allows immediate hardcopy documentation at point-of-test—ideal for shift handovers or audit trail supplementation. Firmware architecture includes secure boot verification and rollback protection, ensuring configuration integrity across multi-user deployments.

Applications

• Quality release testing of coffee pouches, infant formula bags, cheese trays, and ready-to-eat meals packaged under nitrogen-flushed or MAP conditions.
• In-process verification of vacuum sealing efficacy for canned vegetables, seafood, and pharmaceutical blister cards.
• Stability monitoring of lyophilized biologics in serum vials and ampoules, where residual O₂ directly correlates with oxidation-driven degradation kinetics.
• Root-cause analysis of premature spoilage in dairy-based beverages packaged in retort pouches or gable-top cartons.
• Supplier qualification audits for contract packaging organizations handling high-value nutraceuticals and sterile medical devices.

FAQ

What gases can the C650B measure simultaneously?
The instrument measures O₂ as standard; CO₂ is available as an optional add-on module—both cannot operate concurrently in a single test cycle due to sequential sampling protocol optimization.
Is the O₂ sensor replaceable by the end user?
Yes—the electrochemical O₂ sensor is a field-replaceable unit with plug-and-play connector; replacement requires no recalibration beyond the integrated one-touch zeroing routine.
Does the C650B comply with GLP or GMP documentation standards?
While the hardware itself is not GLP/GMP-certified, its data management features—including time-stamped records, user authentication logs (via PC software), and electronic signature-capable reporting—enable compliance when embedded within a site-specific validated procedure.
Can it analyze headspace in underwater submerged packages?
Yes—when paired with the optional B2226 Underwater Headspace Sampling Module, the system enables quantitative O₂/CO₂ analysis of packages fully immersed in water, critical for evaluating barrier performance of marine transport packaging.
What maintenance is required beyond sensor replacement?
No routine mechanical maintenance is specified; users are advised to clean the sampling needle and filter monthly using isopropyl alcohol and compressed air, per ISO 13485-aligned preventive maintenance guidelines.