Honeywell XNX-AMSI-NNNNN Universal Gas Detector Platform

The Honeywell XNX-AMSI-NNNNN gas detection transmitter delivers top performance for industrial safety applications across chemical, marine, and oil plants. Engineers choose this universal platform to connect advanced infrared sensors to digital monitoring systems effortlessly.

Product Summary

• Rugged Design: The Honeywell XNX-AMSI-NNNNN features 316 stainless steel housing to withstand extreme weather and corrosive environments.
• Universal Connectivity: Field teams easily link infrared devices like Searchline Excel or standard 4-20mA inputs to plant control architecture.
• High Accuracy: The unit maintains precise signal integrity within ±1% of full scale for maximum plant safety.
• Fast Worldwide Shipping: We ship orders globally using express carriers including FedEx, UPS, and DHL.

Product Code Breakdown

Suffix Code Structure for XNX Universal Transmitter:

XNX (Universal Transmitter Base Series)
└── A (ATEX/IEC Explosive Area Approval)
    └── M (5 x M25 Cable Entry Ports)
        └── S (316 Grade Stainless Steel Housing)
            └── I (Infrared Personality Board Interface)
                └── N (No Secondary Relays or Options)
                    └── N (No Local HART Hardware Adapter)
                        └── NNN (No Integrated Sensor Cartridge Included)

Technical Specifications

• Brand: Honeywell
• Model Number: XNX-AMSI-NNNNN
• Product Line: XNX Universal Transmitters
• Supply Voltage: 18 to 32 VDC (24 VDC Nominal)
• Power Consumption: 9.7 W max (Optima Plus), 13.2 W max (Searchline Excel)
• Signal Output: 4-20 mA with HART (Sink, Source, or Isolated)
• Signal Accuracy: ±1% of full scale rating
• Frequency Response: Fast dynamic response under 3 seconds
• Sensitivity Drift: Less than ±2% full scale per year
• Linearity: Linear response across the entire input scale range
• Resolution: 0.1 mA signal resolution output
• Operating Temperature: -40°C to +65°C (-40°F to +149°F)
• Humidity Range: 0 to 99% RH non-condensing environment
• Ingress Protection: IP66 and NEMA 4X certified
• Interference Immunity: High protection against electromagnetic noise and RF signals
• Cable Entries: 5 x M25 field wiring ports
• Unit Weight: 11 lbs (5 kg) heavy-duty build

Core Selling Points

• Extreme Corrosion Protection: Premium grade 316 stainless steel housing prevents salt and spray damage on offshore oil platforms.
• Flexible Mounting Options: Technicians mount the transmitter on flat surfaces using built-in lugs or attach optional pipe mounts.
• Broad Sensor Compatibility: One unified platform processes inputs from open-path IR sensors, point IR detectors, and standard transmitters.
• Reliable Power Management: Efficient internal electronics keep total energy consumption low even during peak operational loads.
• Simple System Retrofits: Plant operators replace legacy transmitters without running expensive new signal cables through the facility.

Installation Guidelines

• Mounting Location: Field crews secure the base unit vertically to stable structural steel near key gas monitoring points.
• Cable Entry Glands: Installers run shielded instrument wire through approved M25 glands to guarantee complete water sealing.
• Grounding Procedure: Technical teams connect proper earth grounding straps directly to external frame lugs for safety.
• Loop Testing: Field engineers measure terminal voltage before turning on main loop power to avoid equipment damage.

Package Contents

• Main Transmitter Unit: Single XNX-AMSI-NNNNN 316 stainless steel housing assembly
• Internal Electronics: Factory pre-installed infrared personality interface circuit board
• Hardware Pack: Standard internal grounding screws and seal plugs
• Express Shipping Methods: Global delivery via FedEx, UPS, or DHL

Frequently Asked Questions

• Does this transmitter include internal relay contacts? This specific configuration provides direct 4-20mA HART output without internal relays.
• Which gas detectors work with this personality board? Operators connect Searchline Excel open-path units, Searchpoint Optima Plus, or generic 4-20mA devices.
• What power supply voltage does the unit require? The system runs on standard 24 VDC industrial power, accepting 18 to 32 VDC.
• Can technicians install this device outdoors? The IP66 and NEMA 4X rated enclosure protects components against heavy rain and dust.
• How do engineers configure operational parameters? Technicians use standard HART handheld tools connected across the signal line for remote setup.

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