Honeywell XNX-UTSE-NHIV1 Universal Transmitter Data Sheet

The Honeywell XNX-UTSE-NHIV1 universal transmitter delivers high precision methane detection across hazardous industrial facilities. Plant operators install this heavy duty gas detector to protect critical machinery from combustible methane gas leaks. Technicians rely on the Honeywell XNX-UTSE-NHIV1 transmitter to ensure continuous plant safety and rapid analog signal reporting.

Download the official technical manual to view detailed installation diagrams and complete field wiring schematics: Download Honeywell XNX Universal Transmitter Manual.

Product Executive Summary

• Manufacturer Name: Honeywell Process Solutions
• Model Series: XNX Universal Transmitter Series
• Specific Model: XNX-UTSE-NHIV1
• Primary Application: Continuous combustible methane gas monitoring in offshore platforms and chemical processing plants.
• Core Feature: Marine grade 316 stainless steel housing with standard 4-20mA output and local HART communication support.

Technical Specifications & Performance Parameters

• Brand Name: Honeywell
• Model Identification: XNX-UTSE-NHIV1
• Measurement Target: 0 to 100% LEL (0 to 5% Vol.) Methane (CH4) Gas
• Response Time Speed: T90 optical response occurs in less than 15 seconds under standard testing.
• System Sensitivity: High optical stability detects minimal methane concentrations without signal baseline drift.
• Signal Linearity: Linear digital processing delivers precision measuring accuracy across the total full scale range.
• Measurement Resolution: 1% LEL fine increments allow exact control room safety monitoring.
• Operating Temperature Limit: Thermal endurance spans from -40 degrees Celsius up to +65 degrees Celsius.
• Environmental Tolerance: Heavy housing meets strict NEMA 4X and IP66 water ingress protection standards.
• Noise Immunity: Internal electronic shielding protects signal circuits against strong electromagnetic radiation fields.
• Main Enclosure Body: 316 Grade Stainless Steel prevents aggressive coastal atmospheric corrosion.
• Conduit Entry Connection: Dual 3/4 inch NPT threaded entry ports accept standard explosion-proof cable glands.
• Safety Certifications: Official UL and CSA approvals suit Class I Division 1 hazardous environments.
• Personality Module: Integrated electrochemical interface includes intrinsic safety barrier assemblies and sensor adaptors.
• Option Board Installed: Standard model configuration contains no additional option communications card.
• Local Interface Access: Dedicated local HART test port allows rapid field technician calibration and diagnostic reading.
• Total Equipment Mass: Heavy duty housing assembly weighs exactly 6.8 kilograms (15 pounds) total.
• Operating Voltage Range: Internal electronics operate on standard 18 to 32 VDC direct current power inputs.
• Power Usage Requirement: Low energy design consumes less than 6.5 watts power during normal operations.

Key Selling Points

• Direct Local HART Testing: Technicians connect handheld communicators directly to local HART terminals without opening main housing covers.
• Marine Grade Corrosion Resistance: Solid 316 stainless steel enclosure withstands salt spray on offshore oil drilling platforms.
• Intrinsically Safe Circuitry: Internal safety barrier board lets operators replace optical sensor heads without total system power shutdown.
• Infrared Methane Precision: Advanced optical sensor cartridge delivers quick infrared detection for dangerous methane gas leaks.
• Cost Effective Platform: Standard 4-20mA configuration provides reliable point detection without additional digital network card expenses.

Model Code Tree Structure

• XNX → Universal Transmitter Platform
  • U → UL and CSA Safety Approved
    • T → 3/4 inch NPT Threaded Conduit Entry
      • S → 316 Grade Stainless Steel Enclosure
        • E → Electrochemical IS Barrier Interface
          • N → No Option Communications Card
            • H → Local HART Test Port Included
              • IV1 → Infrared Methane Sensor (0-100% LEL)

Model Comparison & Technical Recommendations

• XNX-UTSE-NHIV1 Platform: Features 316 stainless steel housing, local HART access, and standard 4-20mA signal outputs.
• Alternative Selection Option: Check specifications for the XNX-AMAV-NHIV1 transmitter model when site engineering designs specify painted aluminum enclosures.
• Engineering Advice: Select XNX-UTSE-NHIV1 for corrosive marine locations requiring stainless steel body resistance and simple 4-20mA wiring.
• Housing Differences: The alternative model uses lightweight aluminum housing while maintaining identical methane sensor elements and 4-20mA outputs.

Field Installation & Wiring Guide

• Physical Mounting: Secure heavy stainless steel housing firmly onto rigid metal mounting brackets or walls.
• Conduit Sealing: Apply approved thread sealant compound onto 3/4 inch NPT stainless conduit connections.
• Field Wiring Steps: Route signal power wires inside housing and connect conductors onto main terminal block strips.
• System Grounding: Connect heavy copper grounding conductors onto external enclosure earth terminals to prevent noise.
• Sensor Head Assembly: Thread infrared methane sensor cartridge into lower enclosure port and hand tighten securely.

Delivery Packaging & Express Logistics

• Standard Shipping List: Sealed transmitter enclosure unit with internal 4-20mA and HART communication circuit boards.
• Internal Hardware Items: Pre-installed intrinsic safety barrier card and electrochemical personality adapter board assembly inside housing.
• Protective Packaging: Thick custom foam inserts cushion heavy transmitter during international air transit.
• Express Courier Options: We send fast international shipments using trusted express couriers FedEx, UPS, and DHL.
• Commercial Warranty Coverage: Factory fresh units include full 12 month warranty coverage against manufacturing defects.

Frequently Asked Questions

• Does this specific model include a Fieldbus or Modbus network card? This model variant installs no optional communications board and relies on standard 4-20mA analog output signals.
• How do technicians perform field diagnostics on this unit? Technicians attach HART handheld calibrators directly to internal test terminals located under front enclosure covers.
• Why choose stainless steel housing over aluminum options? The 316 grade stainless steel construction provides superior durability against oceanic saltwater and harsh industrial chemicals.
• What optical sensor technology does this transmitter employ? The internal sensor head uses dual wavelength infrared optical technology to measure methane gas concentrations accurately.
• What direct current voltage range powers internal circuits? Internal power supply board circuits operate smoothly on standard 18 to 32 VDC direct current power inputs.

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