Honeywell XNX-UTSE-NNNNN Universal Gas Detector Transmitter Technical Overview

Engineers process hazardous industrial gases safely by integrating the Honeywell XNX-UTSE-NNNNN universal transmitter directly into plant control infrastructure. The robust XNX transmitter series handles continuous oxygen and toxic gas monitoring through reliable electrochemical sensor connections across severe environments.

Download the official technical manual directly from Honeywell XNX Universal Transmitter Manual for complete wiring diagrams and configuration guidance.

Download Official Product Manual (PDF)

Summary

• The XNX-UTSE-NNNNN transmitter provides 24V DC nominal power flexibility across heavy industrial facility loops.
• This specialized Honeywell XNX-UTSE-NNNNN housing utilizes 316 painted stainless steel for maximum corrosive resistance.
• Operators configure all internal gas detection parameters using a non-intrusive magnetic wand through backlit LCD screens.
• Plant technicians easily swap intrinsically safe sensing cells without cutting main electrical power to hazardous zones.

Technical Specifications

• Brand: Honeywell Analytics
• Model: XNX-UTSE-NNNNN
• Subcategory: Universal Gas Detector Transmitter / Oxygen Monitoring
• Operating Voltage: 16–32 V DC (24 V DC nominal input)
• Power Consumption: 6.2 W to 13.2 W maximum load
• Signal Output: 4–20 mA loop with digital HART signal overlay
• Optional Digital Output: Modbus RTU or FOUNDATION Fieldbus communications protocol
• Relay Contacts: 3 x SPCO relays rated at 250 V AC 5 A
• Measurement Range: 0–25% VOL for oxygen cell configurations
• Frequency Response: T90 under 15 seconds for standard gas diffusion
• Signal Sensitivity: High accuracy baseline stability with zero drift compensation
• Measurement Linearity: Linear output response across full detection scale
• Display Resolution: 0.1% VOL increments on high-contrast LCD
• Operating Temperature: –40 °C to +65 °C (–40 °F to +149 °F)
• Environmental Tolerance: IP66 and NEMA 4X ingress protection rating
• Pressure Resistance Range: Atmospheric pressure window from 80 kPa to 120 kPa
• Interference Immunity: Electromagnetic shielding compliant with industrial EMC standards
• Conduit Thread Entries: Four 3/4 inch NPT threaded conduit entries
• Hazardous Certifications: UL, CSA, ATEX Class I Div 1 Groups A, B, C, D
• Physical Weight: Approximately 11 lb (5 kg) in stainless steel build

Part Number Structure Breakdown

• XNX Series: Universal Gas Detection Transmitter Platform
  • U: UL / CSA North American Hazardous Location Approvals
    • T: Toxic and Oxygen Electrochemical Sensor Interface Type
      • S: SS316 Painted Stainless Steel Enclosure Material
        • E: 4 x 3/4" NPT Threaded Conduit Entry Ports
          • NNNNN: Standard Base Unit Without Optional Relays or Fieldbus Modules

Model Comparison & Selection Advice

• XNX-UTSE-NNNNN features 4 x 3/4" NPT conduit entries while XNX-UTSE-FNNNN includes factory-installed Modbus fieldbus communication option cards directly onboard.
• Select the standard unit when integrating into simple 4-20mA HART networks without localized fieldbus protocols.
• Choose the fieldbus version when multi-drop digital cabling saves field installation time across large plant networks.

Installation Guidelines

• Mount the transmitter enclosure firmly using integral wall lugs or dedicated pipe mounting kits.
• Run field wiring through approved 3/4 inch NPT conduit fittings to maintain explosion-proof seal integrity.
• Connect signal wiring strictly according to terminal block designations for loop-powered HART configurations.
• Verify main grounding straps secure static dissipation paths before applying power to internal circuit assemblies.

Packaging List & Shipping Details

• 1 x Honeywell XNX-UTSE-NNNNN Stainless Steel Transmitter Assembly
• 1 x External Magnetic Programming Wand Tool
• 1 x Quick Installation Reference Sheet
• Express Delivery Partners: Global express shipments handle delivery using Fedex, UPS, or DHL carriers.

Frequently Asked Questions

• How do technicians program zero and span calibration points on this unit?
  • Technicians apply the external magnetic wand against target display windows without opening explosion-proof enclosures.
• Which sensor technologies run on this specific transmitter unit?
  • This unit supports electrochemical cells specifically configured for oxygen and toxic gas detection profiles.
• Can field personnel swap sensors under hazardous operating conditions?
  • Intrinsically safe sensor socket designs allow hot-swapping sensors without de-energizing the main transmitter enclosure.

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