{"product_id":"xnx-utav-rncb1-honeywell-universal-gas-transmitter-mpd-catalytic-bead","title":"XNX-UTAV-RNCB1 Honeywell Universal Gas Transmitter MPD Catalytic Bead","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-UTAV-RNCB1 Honeywell\u003c\/strong\u003e\u003c\/span\u003e Universal Transmitter delivers continuous, high-precision monitoring for 0–100% LEL combustible hydrocarbon gases. Engineered with a lightweight, marine-grade painted LM25 aluminum enclosure, this unit comes pre-configured with an MPD catalytic bead sensor cartridge (CB1). It provides dual-output safety architecture combining standard 4-20mA signal transmission with integrated HART communication alongside three fully programmable SPCO output relays for direct local interlock control.\u003c\/p\u003e\n\u003ch3\u003eConfiguration Architecture Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell XNX Series Platform\u003c\/strong\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproval Rating [U]:\u003c\/strong\u003e UL \/ CSA Certified (Class I, Division 1, Groups B, C, D)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Entry [T]:\u003c\/strong\u003e 4 x 3\/4\" NPT Conduit Entries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Construction [A]:\u003c\/strong\u003e Painted LM25 Marine-Grade Aluminum (5 lbs \/ 2.3 kg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Personality [V]:\u003c\/strong\u003e Millivolt (mV) Bridge Interface for MPD \/ 705 Sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware Option [R]:\u003c\/strong\u003e 3 x Internal Relays Installed (2 Alarm, 1 Fault)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal Interface [N]:\u003c\/strong\u003e No External Port Installed (Standard Enclosure)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Sensor [CB1]:\u003c\/strong\u003e MPD Catalytic Bead Cartridge (0–100% LEL Combustible)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications \u0026amp; Operational Limits\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eEngineering Parameter\u003c\/th\u003e\n\u003cth\u003eField Specification Detail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFull Model Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-UTAV-RNCB1\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell XNX Universal Gas Transmitter\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Hardware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntegrated MPD Catalytic Bead (CB1) Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTarget Gas Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCombustible Hydrocarbons (0–100% LEL Range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 to 32 VDC Operating Window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.5 Watts Maximum Load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Communication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHART Digital Signal Superimposed on 4-20mA Loop Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contact Ratings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 x SPCO Contacts (250 VAC 5A \/ 24 VDC 5A Resistive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUser Interface Display\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5-Inch Backlit Dot-Matrix LCD Screen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIngress Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNEMA 4X \/ IP66 Weatherproof Seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +65°C (-40°F to +149°F) Base Unit Limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Capability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20% to 90% RH Non-Condensing Operating Window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCompatible Hardware \u0026amp; Field Application Scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Sensor Assemblies:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eMPD Series Cartridges\u003c\/strong\u003e\u003c\/span\u003e (Catalytic Bead and Infrared options)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eModel 705 \u0026amp; 705HT\u003c\/strong\u003e\u003c\/span\u003e High-Temperature Catalytic Bead Sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eSensepoint \u0026amp; Sensepoint HT\u003c\/strong\u003e\u003c\/span\u003e Heavy-Duty Field Transducers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Industrial Deployments:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eClass I, Division 1 hazardous areas requiring North American UL\/CSA compliance standards.\u003c\/li\u003e\n\u003cli\u003eGas compressor stations, pipeline metering skids, and valve manifold rooms.\u003c\/li\u003e\n\u003cli\u003eIndustrial boiler rooms, thermal oxidizers, and fuel storage facilities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostic \u0026amp; Self-Monitoring Capabilities\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-UTAV-RNCB1 Honeywell\u003c\/strong\u003e\u003c\/span\u003e transmitter incorporates continuous self-diagnostics that sample micro-controller execution, bridge baseline drift, supply voltage stability, and sensor element continuity. If a catalytic bead poison event or open-circuit failure occurs, the unit immediately drives the analog loop down to dedicated fault currents (≤2.0mA) and triggers the dedicated internal Fault Relay, enabling automated control room alerts before safety thresholds break down.\u003c\/p\u003e\n\u003ch3\u003eModel Selection Comparison \u0026amp; Engineering Recommendation\u003c\/h3\u003e\n\u003cp\u003eSelecting the correct communication architecture and regulatory approval profile ensures hassle-free field commissioning. Below is an engineering comparison between the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-UTAV-RNCB1\u003c\/strong\u003e\u003c\/span\u003e and the alternative \u003ca href=\"https:\/\/www.plcsparehub.com\/products\/honeywell-xnx-series-xnx-amsv-mnif1-modbus-transmitter-request-a-quote\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-AMSV-MNIF1\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e transmitter configuration:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection Specification\u003c\/th\u003e\n\u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-UTAV-RNCB1\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.plcsparehub.com\/products\/honeywell-xnx-series-xnx-amsv-mnif1-modbus-transmitter-request-a-quote\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-AMSV-MNIF1\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eArea Approval Certification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL \/ CSA (Class I, Div 1, Groups B, C, D)\u003c\/td\u003e\n\u003ctd\u003eATEX \/ IECEx Hazardous Area Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConduit Entry Threads\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 x 3\/4\" NPT Threaded Entries\u003c\/td\u003e\n\u003ctd\u003e5 x M25 Metric Threaded Entries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSecondary Digital Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 x Mechanical SPCO Relays Installed\u003c\/td\u003e\n\u003ctd\u003eModbus RTU over RS-485 Board Installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstalled Sensor Cartridge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCB1 Catalytic Bead (0-100% LEL)\u003c\/td\u003e\n\u003ctd\u003eIF1 Infrared Cartridge (Methane \/ Hydrocarbon)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eEngineering Advice:\u003c\/strong\u003e Choose the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-UTAV-RNCB1\u003c\/strong\u003e\u003c\/span\u003e for installations in North American jurisdictions requiring UL\/CSA listings, 3\/4\" NPT conduit runs, direct relay trips for local horns, and broad-spectrum catalytic bead detection. Conversely, select the \u003ca href=\"https:\/\/www.plcsparehub.com\/products\/honeywell-xnx-series-xnx-amsv-mnif1-modbus-transmitter-request-a-quote\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-AMSV-MNIF1\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e when deploying in ATEX\/IECEx regions using metric M25 glands, multidrop Modbus RS-485 serial networks, or where long-term sensor immunity to catalytic poisons requires infrared optical sensing technology.\u003c\/p\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eDuring a field retrofit at a North American natural gas compression plant, our engineers faced tight space constraints inside existing 3\/4\" NPT conduit channels. The compact 5 lb LM25 aluminum frame of the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-UTAV-RNCB1 Honeywell\u003c\/strong\u003e\u003c\/span\u003e allowed easy single-technician mounting. By utilizing the internal relay option to switch local warning beacons directly on the skid, the team eliminated the need for extra junction boxes and interposing relays, reducing overall commissioning time by over 30% while retaining full 4-20mA HART reporting to the main SCADA system.\u003c\/p\u003e\n\u003ch3\u003eWarranty, Logistics \u0026amp; Ordering Terms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Condition:\u003c\/strong\u003e 100% Brand New and Original Factory Supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Coverage:\u003c\/strong\u003e Standard 12-Month Quality Guarantee from dispatch date\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder Processing Time:\u003c\/strong\u003e Fast dispatch within 24 to 48 hours post-payment verification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpress Global Shipping:\u003c\/strong\u003e Courier shipping via trusted partners including FedEx, UPS, and DHL Express\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Selection \u0026amp; Operational FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the principal difference between 3\/4\" NPT entries and M25 entry configurations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 3\/4\" NPT threads on this model comply with North American rigid conduit standards, whereas M25 metric entries suit European cable gland practices. Always match entry threads to local electrical code specifications to maintain NEMA 4X integrity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the CB1 catalytic bead sensor detect combustible gases other than methane?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The MPD catalytic bead element responds rapidly to a broad array of hydrocarbon gases and flammable vapors, including propane, butane, and hydrogen, calibrated to 0–100% LEL.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if high exposure to silicones or sulfur occurs at the sensing site?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSilicones and heavy sulfides can poison catalytic bead elements over time, reducing sensitivity. In environments with known catalytic poisons, consider switching to an optical infrared sensor platform like the IF1 cartridge series.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do technicians interact with the display in hazardous locations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eField calibration and menu navigation are performed using a magnetic wand held against the glass window, allowing non-intrusive setup without opening the explosion-proof housing or issuing a hot-work permit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the internal relay contacts rated for direct AC power switching?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The form \"C\" SPCO relay contacts carry ratings up to 250 VAC at 5A or 24 VDC at 5A under resistive loads, suitable for driving local strobes, horns, or small isolation solenoids.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/XNX.png?v=1787714324\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45384028717238,"sku":"XNX-UTAV-RNCB1","price":248.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/XNX-AMSE-NNNNN_4_c54d586c-f35d-4899-9d48-1124b64eda29.jpg?v=1787715583","url":"https:\/\/www.plcsparehub.com\/ar\/products\/xnx-utav-rncb1-honeywell-universal-gas-transmitter-mpd-catalytic-bead","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}