XNX-BTAI-MHNNN Honeywell Modbus HART 4-20mA Transmitter

XNX-BTAI-MHNNN Universal Transmitter by Honeywell

Key Technical Specifications

• Brand: Honeywell – a global authority in industrial safety and gas detection.
• Model: XNX-BTAI-MHNNN – part of the XNX Universal Transmitter series.
• Output: HART® protocol over 4-20mA analog loop for reliable data transmission.
• Approval: Approval B – certified for use in hazardous industrial areas.
• Enclosure: Aluminium (Material A) with ¾" NPT entries (Entry T) for North American standards.
• Personality: Interface I – designed for infrared sensors like Searchline Excel and Searchpoint Optima.
• Communication Options: Modbus (Option M) and Local HART (Option H) for flexible system integration.
• Sensor: No sensor included (Range NNN) – compatible with external 4-20mA devices.
• Operating Temperature: -40°C to +65°C (-40°F to +149°F) for extreme environments.
• Operating Humidity: 0-99% RH non-condensing for reliable performance in wet conditions.
• Operating Pressure: 90-110 kPa for normal atmospheric applications.
• Storage Conditions: -40°C to +75°C (-40°F to 167°F), 0-99% non-condensing.
• Dimensions: 16cm x 19.7cm x 11.4cm (6.1" x 7.8" x 4.5") – compact footprint.
• Weight: 5.0 kg – lightweight aluminium construction for easy handling.

Frequently Asked Questions (FAQ)

• What sensors are compatible with this transmitter? The Interface I personality supports Searchline Excel, Searchpoint Optima, and generic 4-20mA infrared sensors.
• Does this unit include a sensor? No, the NNN range means no sensor is included. You must purchase a compatible sensor separately.
• What communication protocols does it support? It supports HART® over 4-20mA, Modbus (RS-485), and Local HART for flexible integration.
• Can I use this transmitter outdoors? Yes, it operates from -40°C to +65°C with 0-99% RH and 90-110 kPa pressure range.
• What mounting options are available? Surface mount (standard), pipe mount (optional kit for Ø100-150mm), and ceiling mount (optional bracket).
• What is the difference between Approval A and Approval B? Approval B indicates a different certification scope – please refer to the datasheet for specific zone classifications.
• Is this unit SIL rated? The XNX-BTAI-MHNNN meets SIL 2 requirements for functional safety applications.

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