Honeywell XNX-AMAV-NNIC1 Universal Gas Transmitter

The Honeywell XNX-AMAV-NNIC1 universal transmitter delivers high-performance infrared gas detection for demanding industrial environments. This model combines a rugged painted aluminum housing with an advanced MPD IR Carbon Dioxide sensor to monitor CO2 levels from 0 to 5% Vol. Featuring HART over 4-20mA communication, the unit integrates smoothly into legacy control systems and modern distributed automation platforms.

Designed for multi-hazard environments, the XNX series supports flame, toxic, and combustible gas monitoring across offshore platforms, chemical plants, and manufacturing facilities. The modular architecture lowers long-term maintenance overhead, simplifies field wiring, and ensures rapid sensor replacement under harsh operational conditions.

Technical Specifications

System Integration & Compatibility

• Integrates directly into Honeywell Experion PKS and legacy DCS systems.
• Supports standard 4-20mA HART analog inputs on standard PLC racks.
• Communicates seamlessly with Schneider Electric Modicon and Allen-Bradley ControlLogix safety modules.
• Accepts optional relay or Modbus communication boards for local alarm triggering.
• Matches standard industrial mounting brackets for simple wall or pipe mounting.

Installation, Maintenance & Diagnostics

• Mount the transmitter with cable entries pointing downward to prevent liquid pooling.
• Use M25 explosion-proof cable glands to preserve enclosure ingress protection.
• Perform magnetic wand navigation through the toughened glass window safely.
• Utilize full HART electronic device descriptions (EDD) for remote diagnostic monitoring.
• Access real-time optical health indicators, fault histories, and calibration logs instantly.

Certifications & Standards Compliance

• ATEX / IECEx Certification: Approved for Zone 1 and Zone 2 explosive gas atmospheres.
• INMETRO Compliance: Certified for industrial safety standards across South American regions.
• Ingress Protection: Independently tested and rated to IP66 standards.
• Electrical Safety: Meets global CE mark and EMC immunity guidelines.

Typical Industry Applications

• Oil & Gas Refining: Monitors CO2 accumulation near flare stacks, processing units, and storage bays.
• Offshore Platforms: Resists aggressive salt air while tracking process gas leaks continuously.
• Chemical Processing: Ensures personnel safety near high-pressure reaction vessels and transfer lines.
• Power Generation: Inspects generator cooling systems and combustion byproduct channels.
• Food & Beverage Processing: Monitors large-scale carbonation facilities, breweries, and cold storage units.

Commercial Details & Packaging List

• Package Contents: 1 x Honeywell XNX-AMAV-NNIC1 Transmitter Unit, 1 x MPD IR CO2 Sensor Cartridge, 1 x Magnetic Calibration Tool, Operating Manual.
• Warranty Protection: Standard 12-month factory warranty against manufacturing defects.
• Dispatch Lead Time: Fast dispatch within 24-48 hours from order confirmation.
• Shipping Express Partners: Express global delivery via FedEx, UPS, and DHL courier services.

Buying Guide & Selection Strategy

• Verify Personality Card: Ensure the 'V' designation (milli-Volt interface) matches your MPD IR sensor requirements.
• Select Entry Thread Type: Match the 'M' suffix for metric M25 wiring conduits before ordering.
• Confirm Target Gas Target: Verify 0-5% Vol CO2 range covers your specific safety threshold settings.
• Housing Material Choice: Choose aluminum for standard industrial use or stainless steel for highly corrosive marine zones.

Frequently Asked Questions (FAQ)

Question: Can I calibrate the Honeywell XNX-AMAV-NNIC1 without opening the enclosure?

Answer: Yes, you can perform full zero and span calibrations using the external magnetic wand through the glass window without opening the unit or declassifying the zone.

Question: What cable type should I use for wiring the 4-20mA HART loop?

Answer: We recommend using twisted, individually shielded 2-core or 3-core copper wire (16 to 18 AWG) to ensure stable communication and noise immunity.

Question: How often should the MPD IR CO2 sensor cartridge be bump-tested?

Answer: Field experience suggests conducting a bump test every 6 months under standard conditions, though high-dust or high-vibration sites may benefit from quarterly checks.

Question: What is the main advantage of an optical IR sensor over a standard catalytic bead sensor?

Answer: Infrared sensors do not require oxygen to operate, cannot be poisoned by silicones or sulfides, and maintain excellent zero stability over extended periods.