Honeywell XNXXSG1SS Electrochemical Hydrogen Sensor Assembly Overview

Engineering teams rely on the Honeywell XNXXSG1SS electrochemical sensor assembly for precise hydrogen detection in harsh industrial plant environments. Honeywell designs this specialized unit to pair seamlessly with the XNX Universal Transmitter and Series 3000 MkII/MkIII fixed transmitters. The rugged stainless steel housing protects internal smart electronics, allowing rapid field replacement without shutting down transmitter power.

Key Product Technical Specifications

• Manufacturer: Honeywell
• Part Number: XNXXSG1SS
• Target Gas Type: Hydrogen (H₂) low-range concentration
• Detection Technology: Electrochemical Smart Sensor Assembly
• Default Measurement Range: 0 to 1,000 ppm
• Lower Detectable Limit: 30 ppm concentration threshold
• Calibration Gas Range: 30% to 70% of selected full scale range
• Default Factory Calibration Point: 500 ppm
• Response Speed (T50): Less than 60 seconds
• Response Speed (T90): Less than 90 seconds
• Measurement Accuracy: Better than ±8 ppm variation
• Operating Temperature Tolerances: -20°C to 55°C (-4°F to 131°F)
• Housing Material Construction: 316 Stainless Steel (SS)
• Transmitter Hardware Compatibility: XNX Universal and Series 3000 MkII/MkIII Systems
• Shipping Package Weight: 4.0 kg total mass

Suffix Identification Structure

• XNX Series Base Code:
  • S Option:
    • G1 Designation:
      • SS Suffix: Stainless Steel heavy-duty enclosure

Field Installation Guidelines

• Inspect transmitter threads and thread compound before screwing the sensor module into the housing port.
• Align internal pin connectors carefully to prevent physical damage during the initial insertion process.
• Tighten the stainless steel sensor cell firmly to preserve overall explosion-proof system integrity.
• Utilize hot-swap capabilities safely while following facility electrical and hazardous area safety protocols.
• Allow proper warmup time after mounting before performing zero and span gas calibration routines.

Package Contents and Logistics

• Single unit Honeywell XNXXSG1SS electrochemical hydrogen sensor module assembly
• Protective anti-static and shock-absorbent transport packaging container
• Global express shipping partners include FedEx, UPS, and DHL options

Frequently Asked Questions

• Does the unit require full system shutdown during field replacement?
  • Technicians can hot-swap the internal pre-configured smart sensor assembly without interrupting main transmitter power supply lines.
• Which gas detector platforms accept this specific sensor model?
  • The unit connects directly to Honeywell XNX Universal Transmitters along with Series 3000 MkII and MkIII fixed detectors.
• What physical material composes the outer protective sensor housing?
  • Honeywell manufactures the outer body using corrosion-resistant stainless steel for maximum mechanical durability in aggressive environments.

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