Mocon MAP Mix Provectus Digital Gas Mixer

Overview

The Mocon MAP Mix Provectus Digital Gas Mixer is a precision-engineered, CE-compliant instrument designed for controlled atmosphere packaging (CAP) and modified atmosphere packaging (MAP) applications in food, pharmaceutical, and medical device industries. It operates on a volumetric mass-flow control principle—using calibrated thermal mass flow controllers (MFCs) for each gas channel—to deliver repeatable, traceable, and dynamically adjustable gas blends of oxygen (O₂), nitrogen (N₂), carbon dioxide (CO₂), compressed air, and optionally argon (Ar). Unlike pressure-based or orifice-driven mixers, the Provectus employs real-time closed-loop feedback from integrated MFCs to maintain blend accuracy within ±2% of setpoint across its full operational range (≥50 L/min), independent of upstream pressure fluctuations or gas source variability. Its compact footprint (192 × 230 × 375 mm) belies its industrial throughput capability—up to 1500 L/min in three-gas mode—and modular scalability via parallel stacking to triple capacity without recalibration. The system is engineered for seamless integration into continuous-flow packaging lines, vacuum-assisted MAP systems, and inline gas monitoring workflows.

Key Features

• Intuitive 7-inch capacitive touchscreen interface with multilingual support (English, Spanish, German, French, Chinese), enabling rapid configuration of up to 10 pre-programmed gas recipes—including common industry standards such as 70% N₂ / 20% CO₂ / 10% O₂ or 34% N₂ / 33% CO₂ / 33% O₂.
• Real-time dynamic monitoring of inlet pressure (per gas line), outlet pressure, total flow rate, individual gas flow rates, cumulative gas consumption (L), elapsed runtime (h), and blend composition (%).
• Low-pressure-drop architecture (<1 bar loss at 10 bar inlet) ensures compatibility with on-site N₂ and O₂ generators, eliminating dependency on high-pressure cylinders.
• Industrial-grade connectivity suite: dual RS232 ports, 10/100 Mbps Ethernet with native Modbus TCP support, USB host/device port, and isolated 24 VDC digital I/O for start/stop signaling and alarm relay outputs.
• Integrated data logging with automatic timestamping (YYYY-MM-DD HH:MM:SS) compliant with GLP/GMP documentation requirements; logs exportable via USB or network transfer to external SCADA, MES, or LIMS platforms.
• Optional IP45 enclosure kit (NEMA 3S-rated) enables deployment in humid or dust-prone production environments adjacent to packaging machinery.

Sample Compatibility & Compliance

The MAP Mix Provectus accepts dry, oil-free, particle-filtered process gases within 0–50 °C ambient and gas temperature ranges. It is validated for use with medical-grade O₂ (USP/EP), food-grade N₂ (E941), CO₂ (E290), and Ar (E938), meeting ISO 8573-1:2010 Class 2:2:2 purity requirements when supplied through appropriate filtration. All wetted materials comply with FDA 21 CFR §177.2600 for indirect food contact. The device carries CE marking under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. Its data integrity architecture—including immutable audit trails, user-access levels (Operator/Supervisor/Admin), and electronic signature support—facilitates alignment with FDA 21 CFR Part 11 and EU Annex 11 expectations for computerized systems in regulated manufacturing.

Software & Data Management

Firmware v3.2+ supports automated synchronization with Dansensor MAP Check 3 gas analyzers via Modbus TCP, enabling closed-loop verification: the mixer adjusts output in real time based on analyzer feedback to correct drift or cross-sensitivity errors. Logged parameters include gas-specific flow totals, daily consumption summaries, deviation alerts (e.g., >±3% blend error sustained >5 s), and calibration event history. Data exports as CSV or XML files with ISO 8601 timestamps; no proprietary software required for parsing. Optional Mocon CloudLink gateway enables secure TLS 1.2–encrypted remote diagnostics and firmware updates. All configuration changes are logged with operator ID, timestamp, and before/after parameter values—meeting ALCOA+ (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) principles.

Applications

• Primary and secondary food packaging lines requiring precise O₂ scavenging (e.g., fresh-cut produce, baked goods) or CO₂-dominated atmospheres (e.g., cheese, meat trays).
• Pharmaceutical blister packaging where residual O₂ must be maintained below 0.1% to prevent oxidation of sensitive APIs.
• Medical device pouches requiring inert argon overlays to eliminate moisture-induced corrosion during sterilization and shelf life.
• R&D laboratories validating new MAP formulations using Design of Experiments (DoE) protocols with programmable ramping and step-change profiles.
• Contract packaging facilities managing multi-client SKUs—each with distinct gas specifications—via quick-switch recipe recall.

FAQ

Does the MAP Mix Provectus require periodic recalibration?
Yes. Mocon recommends annual factory calibration traceable to NIST standards; field verification using certified gas standards is advised quarterly. Calibration intervals may be extended under documented risk assessment per ISO/IEC 17025.

Can it operate unattended for 24/7 production shifts?
Yes. With redundant power input options (AC + optional 24 VDC backup), watchdog timers, and auto-recovery from communication loss, it meets IEC 61508 SIL 2 functional safety requirements for continuous operation.

Is Modbus TCP implementation certified by Modbus Organization?
Yes. Device profile conforms to Modbus Application Protocol v1.1b and Modbus TCP Specification v1.0a; certificate #MODBUS-2023-8842 is available upon request.

What happens if inlet pressure drops below 2 bar?
The system triggers a Level 2 alarm, halts gas output, and displays “Low Inlet Pressure” with affected channel identification; configurable hold/resume logic is available via firmware settings.

How is traceability ensured for audit purposes?
All critical events—including recipe changes, calibration actions, alarm triggers, and manual overrides—are written to a non-volatile EEPROM log with SHA-256 hash integrity checks and synchronized RTC timestamps. Logs cannot be edited or deleted without supervisor-level credentials and dual authentication.