Honeywell XNX-AMSI-NNNNN Gas Detection Transmitter

Description

Honeywell XNX-AMSI-NNNNN Gas Detection Transmitter

Product Dimensions：

The Honeywell XNX-AMSI-NNNNN is a universal transmitter for gas detection, part of the highly versatile XNX Universal Transmitter family. It is designed to interface with a wide range of Honeywell gas sensors, providing a standardized output and user interface for toxic, oxygen, and flammable gas monitoring.

Product Detailed Description

The XNX-AMSI-NNNNN is a Stainless Steel (S) housing transmitter configured with an Aluminum (A) sensor entry. The “M” denotes a Modbus digital output option, and the “I” indicates it is designed for IS (Intrinsically Safe) sensors, typically used for toxic gases and oxygen. The “NNNNN” suffix indicates a standard configuration without specialized local relays or remote sensor kits.

Technical Parameters

Product Advantages

• High Durability: The stainless steel housing provides maximum protection in harsh offshore, coastal, or highly corrosive industrial environments.
• Universal Platform: The XNX platform reduces training and maintenance costs because the user interface (LCD and magnetic switches) is identical across all gas types.
• Multi-Protocol Support: Combines traditional 4–20 mA analog signals with digital Modbus and HART, allowing for easy integration into legacy systems or modern digital networks.
• Non-Intrusive Operation: The transmitter can be calibrated and configured using a magnetic wand without opening the enclosure, maintaining the “explosion-proof” integrity of the site during maintenance.

Important Considerations & Precautions

• Sensor Compatibility: This specific model (XNX-AMSI) is intended for use with Honeywell’s Intrinsically Safe electrochemical sensors. Ensure you are not attempting to connect an infrared (IR) or catalytic bead sensor to this specific input type.
• Magnetic Wand: Calibration requires the Honeywell magnetic tool. Ensure site technicians have these available, as the unit does not have external push-buttons to maintain its IP rating.
• Shielding: To prevent “ghost” readings or communication errors on the Modbus line, use high-quality shielded twisted-pair cabling and ensure the shield is grounded at the controller end only.
• Seal Integrity: When installing in a hazardous area, ensure all unused cable entries are sealed with certified stopping plugs and that the housing O-ring is lubricated and intact.

Product Applications

The XNX-AMSI-NNNNN is used where high-performance toxic gas monitoring is required in extreme conditions:

• Offshore Oil Platforms: Monitoring for Hydrogen Sulfide (H_2S) in high-salt, high-corrosion environments.
• Chemical Processing: Detecting Ammonia (NH_3), Chlorine (Cl_2), or Hydrogen Fluoride (HF) leaks.
• Wastewater Treatment: Monitoring Oxygen levels and toxic gases in humid and corrosive atmospheres.
• Refineries: Integrated into plant-wide Safety Instrumented Systems (SIS) via its SIL 2 certification.

Shipping Port: Xiamen, China

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