XNXXSM1SS Nitric Oxide Sensor | Honeywell Modbus RTU Output

Honeywell XNXXSM1SS Smart Sensor with Modbus Output for NO Detection

• Output Type: Isolated RS485 with Modbus RTU protocol.
• Baud Rate: Selectable from 1200 to 19.2K baud.
• Maximum Nodes: Supports up to 254 XNX compatible transmitters.
• Connections: RS485+, RS485-, and Drain terminals.
• Functions: Matches Foundation Fieldbus module capabilities (optional).
• Exclusivity: Mutually exclusive with relays and Foundation Fieldbus options.

Gas Detection Specifications (NO, Nitric Oxide)

• Target Gas: Nitric Oxide (NO).
• Default Range: 100 ppm (full scale not selectable).
• Lower Detectable Limit: 3 ppm for low-level NO detection.
• Calibration Gas Range: 30% to 70% of full scale; default cal point 50 ppm.
• Response Time: T50 under 15 seconds, T90 under 30 seconds.
• Accuracy: ±2 ppm delivers precise and reliable readings.

Operating Temperature & Environment

• Temperature Range: Operates from -20°C (-4°F) to 55°C (131°F).
• Electrochemical Sensor: Provides stable NO-specific response.
• Durability: Resists humidity and minor temperature fluctuations.
• Interference Protection: Built-in filters minimize cross-gas effects.

Frequently Asked Questions (FAQ)

• Is this a brand new, original module? Yes, we stock only brand new, original Honeywell XNXXSM1SS modules.
• Do you have stock available? Yes, we maintain ample stock for immediate shipment.
• Can I use this module with relays simultaneously? No, the Modbus option is mutually exclusive with relays and Foundation Fieldbus.
• How many transmitters can connect to one network? Up to 254 XNX compatible transmitters on a single Modbus network.
• What is the default NO calibration point? The default cal point is 50 ppm (30-70% of range).
• What is the T90 response time for NO? Under 30 seconds for 90% of final reading.
• Return policy? We support 30-day returns for unused items in original packaging.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628 (WhatsApp).

Partner NexAuto Technology Limited: https://www.nex-auto.com/

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