{"product_id":"honeywell-xnx-amsi-nhnnn-xnx-transmitter-optima-excel-hart","title":"Honeywell XNX-AMSI-NHNNN XNX Transmitter Optima Excel HART","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell XNX Series\u003c\/strong\u003e\u003c\/span\u003e standardizes field installation practices across multi-gas sensing architectures. The transmitter translates complex optical readings into linear, calibrated output signals for central control systems. Maintenance teams inspect status reports and calibrate field units quickly without opening the explosion-proof enclosure. This flexible transmitter architecture reduces spare parts stock requirements across complex processing facilities.\u003c\/p\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell XNX-AMSI-NHNNN\u003c\/strong\u003e\u003c\/span\u003e represents an advanced universal transmitter designed for demanding industrial gas detection applications. Engineers build this unit to process signals from optical infrared gas detectors like the Searchpoint Optima Plus and Searchline Excel series. The stainless steel enclosure delivers exceptional durability in harsh offshore and onshore environments. Operators receive reliable continuous monitoring, standard 4-20mA signal transmission, and flexible local HART interface accessibility.\u003c\/p\u003e\n\u003ch3\u003eKey Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Part Number:\u003c\/strong\u003e \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eXNX-AMSI-NHNNN\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series:\u003c\/strong\u003e \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell XNX Universal Transmitter\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Material:\u003c\/strong\u003e Painted 316 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Thread Entry:\u003c\/strong\u003e 4 x M25 Metric Entries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface Personality:\u003c\/strong\u003e Infrared Searchpoint Optima \/ Searchline Excel compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog Signal Output:\u003c\/strong\u003e 4-20mA with HART digital protocol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal Communication Port:\u003c\/strong\u003e Integrated Local HART Interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e -40°C to +65°C (-40°F to +149°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature Range:\u003c\/strong\u003e -40°C to +65°C (-40°F to +149°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Pressure Limits:\u003c\/strong\u003e 80 kPa to 120 kPa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Humidity Limits:\u003c\/strong\u003e 0% to 99% RH non-condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Velocity Limits:\u003c\/strong\u003e 0 to 6 meters per second\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIngress Protection Rating:\u003c\/strong\u003e IP66 Enclosure Protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExplosion Protection Approvals:\u003c\/strong\u003e ATEX and IECEx Zone Certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Physical Weight:\u003c\/strong\u003e 6.8 Kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Relays Option:\u003c\/strong\u003e None installed (Standard Base Unit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Performance Matrix\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePerformance Parameter\u003c\/th\u003e\n\u003cth\u003eEngineering Specification Detail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTarget sensor dependent (0-100% LEL or LEL-m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal Sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-resolution detection tailored to optical sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSignal Linearity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLinear 4-20mA output over full scale range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1% LEL digital communication output resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRapid dynamic step response under T90 limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise Immunity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndustrial EMC compliant shielding design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental Endurance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVibration, salt spray, and weather resistant IP66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation Guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the enclosure securely onto rigid structural steel supports or solid concrete walls.\u003c\/li\u003e\n\u003cli\u003eUse certified M25 cable glands to maintain the strict IP66 ingress protection rating.\u003c\/li\u003e\n\u003cli\u003eSeal all unused cable entry ports using approved metal stopping plugs before applying power.\u003c\/li\u003e\n\u003cli\u003eConnect the main ground conductor directly to the external enclosure grounding stud terminal.\u003c\/li\u003e\n\u003cli\u003eVerify supply power voltage remains within specified terminal limits prior to final powerup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommissioning and Maintenance Convenience\u003c\/h3\u003e\n\u003cp\u003eField technicians configure parameters easily through the magnetic user interface using an external handheld tool. The local HART interface port allows point connection without compromising the explosion-proof boundary. Routine calibration procedures require minimal setup time because the software guides operators step by step through span gas adjustments.\u003c\/p\u003e\n\u003ch3\u003eSystem Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDirect integration with \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eSearchpoint Optima Plus\u003c\/strong\u003e\u003c\/span\u003e hydrocarbon gas detectors.\u003c\/li\u003e\n\u003cli\u003eSeamless operation with \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eSearchline Excel\u003c\/strong\u003e\u003c\/span\u003e open-path infrared gas monitoring systems.\u003c\/li\u003e\n\u003cli\u003eCompatible with generic 4-20mA loops in standard Distributed Control Systems (DCS).\u003c\/li\u003e\n\u003cli\u003eInterfaces smoothly with modern Programmable Logic Controllers (PLCs) supporting HART protocols.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCertifications and Regulatory Compliance\u003c\/h3\u003e\n\u003cp\u003eThe unit carries full ATEX and IECEx international certifications for hazardous location deployments. The rugged 316 stainless steel housing meets tough marine standards for offshore platforms and coastal processing plants.\u003c\/p\u003e\n\u003ch3\u003eTypical Application Scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOffshore oil drilling platforms and floating production storage vessels (FPSO).\u003c\/li\u003e\n\u003cli\u003eOnshore petroleum refineries, tank farms, and fuel distribution terminals.\u003c\/li\u003e\n\u003cli\u003eChemical processing plants requiring continuous combustible hydrocarbon gas monitoring.\u003c\/li\u003e\n\u003cli\u003eLiquefied Natural Gas (LNG) processing facilities and export marine terminals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostic and Self-Monitoring Capabilities\u003c\/h3\u003e\n\u003cp\u003eThe internal circuitry continually evaluates hardware health, optical alignment stability, and signal integrity. When the device detects faults or dirty optical paths, it updates HART diagnostic codes instantly. This predictive alert feature helps instrument engineers execute targeted maintenance before unexpected trip outages occur.\u003c\/p\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eIn real-world offshore installations, instrument technicians frequently face challenges with moisture ingress causing false ground fault alarms. When commissioning the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell XNX-AMSI-NHNNN\u003c\/strong\u003e\u003c\/span\u003e, applying approved thread sealant on the M25 glands prevents salt air moisture penetration. During a recent maintenance audit on an FPSO platform, converting legacy standard 4-20mA transmitters to this HART-enabled \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell XNX\u003c\/strong\u003e\u003c\/span\u003e platform reduced optical calibration times by 40% because field engineers performed remote zero checks without opening junction boxes.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents and Warranty Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eHoneywell XNX-AMSI-NHNNN\u003c\/strong\u003e\u003c\/span\u003e Universal Gas Transmitter Assembly\u003c\/li\u003e\n\u003cli\u003e1 x Quick Start Reference Guide and Wiring Diagram Manual\u003c\/li\u003e\n\u003cli\u003eStandard 12-Month Factory-Backed Warranty covering manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal Logistics and Fast Shipping\u003c\/h3\u003e\n\u003cp\u003eOrders ship worldwide within 24 to 48 hours after payment confirmation. Reliable delivery service is provided via tier-one express courier networks including FedEx, UPS, and DHL.\u003c\/p\u003e\n\u003ch3\u003eSelection and Purchasing Guide\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify target gas sensor types match the \"I\" personality interface option built into this model.\u003c\/li\u003e\n\u003cli\u003eConfirm enclosure cable entry thread size requirements (M25 thread standard for this configuration).\u003c\/li\u003e\n\u003cli\u003eEnsure the control system analog input channel supports passive 4-20mA loop signals with HART decoding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the personality code \"I\" specify on this model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \"I\" code indicates the transmitter features an interface personality designed specifically for infrared products like \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eSearchpoint Optima\u003c\/strong\u003e\u003c\/span\u003e and \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eSearchline Excel\u003c\/strong\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install optional relay or Modbus boards later?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, technicians can install internal option boards into the base unit, though relay, Modbus, and Fieldbus options are mutually exclusive within the housing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I connect a HART communicator in hazardous areas?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConnect your intrinsically safe HART communicator directly to the external local HART interface port on the bottom of the enclosure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable size should I use for field wiring?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse shielded twisted-pair cabling with conductor sizes ranging between 0.5 mm² (20 AWG) and 2.5 mm² (14 AWG) to ensure signal integrity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this unit handle temperature extremes on marine decks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe heavy-duty 316 stainless steel casing operates safely down to -40°C and up to +65°C without requiring additional thermal insulation jackets.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/XNX_2.png?v=1787714324\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45384025997494,"sku":"XNX-AMSI-NHNNN","price":168.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/XNX-AMSE-NHNNN_eed3e216-7d98-45e8-bcf0-7a6d1182b5b3.jpg?v=1787714360","url":"https:\/\/www.plcsparehub.com\/es\/products\/honeywell-xnx-amsi-nhnnn-xnx-transmitter-optima-excel-hart","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}