Mocon Dansensor MAP Check 3 Online Headspace Gas Analyzer

Overview

The Mocon Dansensor MAP Check 3 is an industrial-grade online headspace gas analyzer engineered for real-time, non-destructive monitoring of residual oxygen (O₂) and carbon dioxide (CO₂) concentrations within modified atmosphere packaging (MAP) environments. It operates on electrochemical sensing for O₂ and temperature-stabilized dual-beam nondispersive infrared (NDIR) spectroscopy for CO₂—two measurement principles validated for high reproducibility, long-term stability, and minimal cross-sensitivity in humid or variable-pressure packaging lines. Designed for integration into vertical and horizontal flow-wrap systems, the MAP Check 3 delivers continuous, package-by-package quality assurance—eliminating reliance on offline spot-checking and enabling closed-loop control of gas flushing processes. Its core function extends beyond passive analysis: when paired with the MAP Mix Provectus gas mixer or configured with the optional GasSave module, it dynamically adjusts gas dosing in response to real-time headspace composition, ensuring target gas ratios are achieved with minimal overflushing. This capability directly supports cost optimization, regulatory consistency, and worker safety—particularly in high-CO₂ environments where ambient levels must remain below OSHA-permissible exposure limits (PELs).

Key Features

• 5-inch full-color capacitive touchscreen interface with intuitive navigation and multilingual support (English, German, Spanish, French, Chinese)
• Integrated GasSave functionality for real-time gas consumption logging, traceable per product program and shift
• Modbus TCP-enabled remote monitoring and control, compatible with SCADA, MES, and factory-wide IIoT platforms
• Dual analog outputs (4–20 mA / 0–10 V) and discrete 24 VDC logic I/O for seamless integration with packaging machine PLCs—including automatic line stop triggers upon O₂/CO₂ excursion
• Optional 3-channel multiplexer for sequential analysis across up to three independent packaging lines or zones
• USB and Ethernet data logging supporting CSV export, timestamped event logs, and audit-ready records compliant with GLP/GMP documentation requirements
• IP45-rated enclosure option (NEMA 3S equivalent) for enhanced protection against dust and water splashes in humid production environments

Sample Compatibility & Compliance

The MAP Check 3 is validated for use with dry, non-corrosive gas mixtures containing O₂, CO₂, N₂, or Ar—within a temperature range of 0–50 °C and inlet pressure of 2–10 bar. It does not require sample conditioning or external drying, provided inlet gas meets ISO 8573-1 Class 4 moisture specifications. The analyzer complies with CE marking directives (2014/30/EU EMC, 2014/35/EU LVD), RoHS 2011/65/EU, and conforms to relevant sections of ISO 22000 (food safety management) and ASTM F2096 (standard test method for detecting gross leaks in porous medical packaging). While not intrinsically rated for hazardous areas, its 24 VDC logic interface supports safe integration into ATEX Zone 2 or Class I Div 2 control architectures via certified barrier modules. Data integrity aligns with FDA 21 CFR Part 11 requirements when used with validated PC software and user-access controls.

Software & Data Management

The included Dansensor PC software provides comprehensive configuration, calibration management, and historical trend visualization. Users define product-specific programs—including target O₂/CO₂ setpoints, alarm thresholds, and tolerance bands—and assign them to packaging SKUs. All measurements are time-stamped with millisecond resolution and stored locally on-device (internal flash memory) and optionally mirrored to network drives or cloud-based repositories. Audit trails record operator logins, parameter changes, calibration events, and alarm acknowledgments—supporting internal quality audits and regulatory inspections. Data exports comply with ISO/IEC 17025 reporting conventions and can be imported into statistical process control (SPC) tools such as Minitab or JMP for capability analysis (Cp/Cpk). Firmware updates are delivered via signed .bin files to prevent unauthorized modification.

Applications

The MAP Check 3 is deployed across food, pharmaceutical, and medical device manufacturing where shelf-life extension and microbial inhibition depend critically on precise headspace composition. Typical use cases include: monitoring O₂ ingress in vacuum-sealed ready meals; verifying CO₂ retention in fresh-cut salad trays; validating nitrogen flush efficacy in snack food pouches; ensuring low-O₂ conditions (<0.1%) in pharmaceutical blister packs; and controlling argon-based inerting in high-value nutraceutical sachets. Its real-time feedback loop reduces gas overuse by 20–50% versus fixed-dose systems—directly lowering operational costs while maintaining compliance with EU Regulation (EC) No 1935/2004 and USP material compatibility standards.

FAQ

Can the MAP Check 3 measure nitrogen or argon directly?

No—it measures O₂ and CO₂ only. Nitrogen and argon are inferred by difference (100% − [O₂ + CO₂]) under the assumption of binary or ternary gas mixtures without other active gases.

Is calibration required before each shift?

Zero and span calibration is recommended daily using certified reference gases (e.g., 0% O₂ in N₂, 21% O₂ in air, and 10% CO₂ in N₂); automated calibration routines are supported via the PC software.

Does GasSave require additional hardware?

GasSave is a firmware-enabled feature; no extra sensors or modules are needed—but integration with MAP Mix Provectus or third-party gas mixers requires Modbus TCP or analog signal routing.

What happens if the analyzer detects an out-of-spec headspace reading?

It triggers visual/audible alarms on-screen, logs the event, and—via configurable 24 VDC output—can signal the packaging PLC to halt sealing operations until corrective action is confirmed.

Is the device suitable for cleanroom environments?

Yes, when equipped with the IP45 enclosure kit and installed upstream of final packaging stations, it meets ISO 14644-1 Class 7 airflow requirements for particulate control.