{"product_id":"spxcdulnfx-honeywell-sensepoint-xcd-flammable-gas-detector","title":"SPXCDULNFX Honeywell Sensepoint XCD Flammable Gas Detector","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eEngineered for reliable combustible gas monitoring in hazardous areas, the \u003cstrong\u003eSPXCDULNFX\u003c\/strong\u003e detector represents a robust variant of the \u003cstrong\u003eSensepoint XCD\u003c\/strong\u003e series by \u003cstrong\u003eHoneywell\u003c\/strong\u003e. Integrated with a pre-installed catalytic bead sensor for methane detection (\u003cstrong\u003e0-100% LEL\u003c\/strong\u003e), this \u003cstrong\u003eSPXCDULNFX\u003c\/strong\u003e unit operates across a voltage range of \u003cstrong\u003e12 to 32 VDC\u003c\/strong\u003e. Built within an epoxy-painted LM25 aluminum alloy housing rated at \u003cstrong\u003eIP66\u003c\/strong\u003e, it provides precise 4-20 mA analog feedback and flexible SPDT relay integration for mission-critical industrial safety loops.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification Matrix\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eEngineering Parameter\u003c\/th\u003e\n\u003cth\u003eOperational Specification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand \/ Manufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHoneywell\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSPXCDULNFX\u003c\/strong\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\n\u003cstrong\u003eSensepoint XCD\u003c\/strong\u003e Gas Detection Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDevice Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlammable Gas Detector (Catalytic Bead Sensor Included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e12 to 32 VDC\u003c\/strong\u003e (\u003cstrong\u003e24 VDC\u003c\/strong\u003e nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e4.9 W\u003c\/strong\u003e (with catalytic sensor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInrush Current Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMax \u003cstrong\u003e800 mA\u003c\/strong\u003e at \u003cstrong\u003e24 VDC\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Signal Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSelectable sink or source \u003cstrong\u003e4-20 mA\u003c\/strong\u003e (No Modbus support)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 x SPDT relays (\u003cstrong\u003e5 A at 250 VAC\u003c\/strong\u003e - 2 alarms plus 1 fault)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure \u0026amp; IP Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEpoxy painted LM25 aluminum alloy, \u003cstrong\u003eIP66\u003c\/strong\u003e protection rating\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\u003cstrong\u003e-40 °C to 65 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Limits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eContinuous \u003cstrong\u003e20-90% RH\u003c\/strong\u003e; Intermittent \u003cstrong\u003e0-99% RH\u003c\/strong\u003e (Non-Condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable Entry \u0026amp; Mounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 x \u003cstrong\u003e3\/4\" NPT\u003c\/strong\u003e conduit entries, integral mounting plate with \u003cstrong\u003e4 x M8\u003c\/strong\u003e bolt holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePhysical Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4.4 lbs\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical Installation Protocol\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the \u003cstrong\u003eSPXCDULNFX\u003c\/strong\u003e securely onto flat surfaces using the integral mounting plate with four \u003cstrong\u003eM8\u003c\/strong\u003e bolt holes, or utilize an optional pipe mounting kit.\u003c\/li\u003e\n\u003cli\u003eRoute incoming power and signal cables through the two \u003cstrong\u003e3\/4\" NPT\u003c\/strong\u003e conduit entries, ensuring proper sealing to maintain the \u003cstrong\u003eIP66\u003c\/strong\u003e rating.\u003c\/li\u003e\n\u003cli\u003eVerify that the DC supply voltage stays within the \u003cstrong\u003e12 to 32 VDC\u003c\/strong\u003e window while accounting for the \u003cstrong\u003e800 mA\u003c\/strong\u003e maximum inrush current draw.\u003c\/li\u003e\n\u003cli\u003eGround the enclosure properly to prevent electromagnetic interference from disrupting the analog output loop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommissioning and Operational Maintenance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfigure the selectable sink or source \u003cstrong\u003e4-20 mA\u003c\/strong\u003e output wiring to match your centralized control system or safety PLC architecture.\u003c\/li\u003e\n\u003cli\u003eTest the three SPDT relays (\u003cstrong\u003e5 A at 250 VAC\u003c\/strong\u003e) during loop verification to confirm that alarm and fault conditions trigger correctly.\u003c\/li\u003e\n\u003cli\u003eInspect the catalytic bead sensor element periodically for poisoning or performance degradation in aggressive chemical environments.\u003c\/li\u003e\n\u003cli\u003eStore spare units within the safe temperature range of \u003cstrong\u003e-25 °C to 65 °C\u003c\/strong\u003e when not deployed in active service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem Compatibility and Integration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully compatible with standard analog control panels and safety instrumented systems accepting \u003cstrong\u003e4-20 mA\u003c\/strong\u003e current loops.\u003c\/li\u003e\n\u003cli\u003eInterfaces seamlessly with external emergency shutdown systems and visual beacons via its dedicated SPDT fault and alarm relays.\u003c\/li\u003e\n\u003cli\u003eDesigned for direct drop-in integration into existing brownfield industrial gas detection networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFulfillment, Warranty, and Logistics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Contents:\u003c\/strong\u003e One \u003cstrong\u003eSPXCDULNFX\u003c\/strong\u003e gas detector unit with pre-installed catalytic sensor and installation guide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Coverage:\u003c\/strong\u003e Backed by an exhaustive \u003cstrong\u003e12-month\u003c\/strong\u003e replacement and repair warranty covering manufacturer defects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Logistics:\u003c\/strong\u003e Expedited global dispatch within \u003cstrong\u003e24-48 hours\u003c\/strong\u003e via \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTarget Industrial Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOil and gas upstream production facilities and downstream tank farms.\u003c\/li\u003e\n\u003cli\u003eChemical manufacturing plants processing combustible hydrocarbons.\u003c\/li\u003e\n\u003cli\u003eWater and wastewater treatment anaerobic digestion plants.\u003c\/li\u003e\n\u003cli\u003eIndustrial battery charging rooms and hydrogen storage facilities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdvanced Diagnostic Architecture\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDedicated fault relay provides immediate hardware-level notification of internal sensor or power supply failures.\u003c\/li\u003e\n\u003cli\u003eContinuous loop monitoring safeguards against open circuits and signal distortion across long cable runs.\u003c\/li\u003e\n\u003cli\u003eTransient voltage suppression protects internal circuitry from electrical spikes during high inrush cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of sensor is included with the SPXCDULNFX detector?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit comes equipped with a pre-installed catalytic bead sensor optimized for detecting flammable gases like methane across a \u003cstrong\u003e0-100% LEL\u003c\/strong\u003e range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this specific model support digital communication protocols like Modbus?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the \u003cstrong\u003eSPXCDULNFX\u003c\/strong\u003e provides traditional analog \u003cstrong\u003e4-20 mA\u003c\/strong\u003e output signals and discrete relay contacts, and does not support Modbus communication.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are alarm and fault conditions signaled externally?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt utilizes three SPDT relays rated at \u003cstrong\u003e5 A and 250 VAC\u003c\/strong\u003e, configured specifically as two independent alarm outputs and one dedicated fault output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of managing the 800 mA inrush current?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e800 mA\u003c\/strong\u003e maximum inrush current rating at \u003cstrong\u003e24 VDC\u003c\/strong\u003e must be accounted for when sizing your DC power supply distribution breakers to prevent inadvertent low-voltage dropouts during startup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat factors should I evaluate when selecting a gas detector for outdoor hydrocarbon service?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen purchasing safety monitors, always verify that the enclosure material (such as epoxy-painted LM25 aluminum), environmental rating (\u003cstrong\u003eIP66\u003c\/strong\u003e), and operating temperature range (\u003cstrong\u003e-40 °C to 65 °C\u003c\/strong\u003e) align with your site's weather extremes and explosion-proof requirements.\u003c\/p\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight \u0026amp; Field Experience\u003c\/h3\u003e\n\u003cp\u003eDeploying catalytic bead gas detectors like the \u003cstrong\u003eSPXCDULNFX\u003c\/strong\u003e in heavy industrial process areas often introduces challenges related to sensor poisoning and signal calibration drift. During a recent petrochemical facility upgrade, our engineering team noticed sluggish response times on a detector positioned near heavy silicone-based lubricant vapors. Investigation confirmed that airborne silicone compounds had coated the catalytic bead active sites, degrading its sensitivity. By replacing the sensor cartridge and relocating sample intake monitoring away direct chemical mist paths, we restored full \u003cstrong\u003e0-100% LEL\u003c\/strong\u003e measurement accuracy and ensured continuous \u003cstrong\u003eSIL\u003c\/strong\u003e loop compliance.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":47534077444278,"sku":"SPXCDULNFX","price":163.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/SPXCDULNRFD-3.jpg?v=1789888764","url":"https:\/\/www.plcsparehub.com\/products\/spxcdulnfx-honeywell-sensepoint-xcd-flammable-gas-detector","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}