{"product_id":"ao3481-s2-triconex-analog-output-module-tmr-safety-system","title":"AO3481 S2 Triconex Analog Output Module TMR Safety System","description":"\u003ch3 class=\"\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe Triconex AO3481 S2 is a high-availability Analog Output Module engineered for the Tricon™ safety instrumented system (SIS).\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to operate within a Triple Modular Redundant (TMR) architecture,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethis module provides the deterministic control signals required for critical final control elements,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003esuch as modulating valves and turbine governors.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe AO3481 S2 ensures that safety-critical analog loops remain operational even in the event of a single-channel failure.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eBy utilizing a sophisticated mid-value selection algorithm and continuous cross-validation via the TriBus network,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethe module delivers an exceptionally high level of signal integrity,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003emaking it a cornerstone for SIL3-rated safety applications in hazardous process environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003eTechnical Performance and Hardware Attributes\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eModel Identification\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eAO3481 S2\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eRedundancy Architecture\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eTriple Modular Redundancy (TMR) with median-value voting\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSignal Precision\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eMaintains\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\pm0.1\\%$\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eaccuracy through automated periodic self-calibration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eOutput Ranges\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eSupports standard 4-20mA loops (isolated and non-isolated) and -5VDC to +10VDC spans\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eFault Tolerance\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated ADC gain and bias adjustment via internal reference voltage checks\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eConfiguration Flexibility\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eSupports TMR mode for maximum reliability or duplex mode for balanced performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSystem Lineage\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eCompatible with Tricon Systems (v9–v11)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003ePhysical Mass\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e1.\u003c\/span\u003e\u003cspan class=\"\"\u003e82 kg\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eDimensions\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e3.\u003c\/span\u003e\u003cspan class=\"\"\u003e2 cm x 26.\u003c\/span\u003e\u003cspan class=\"\"\u003e5 cm x 35.\u003c\/span\u003e\u003cspan class=\"\"\u003e8 cm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eSafety Integrity\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eSIL 3 Certified for emergency shutdown and critical control\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eManufacturing Origin\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eUSA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\"\u003eIndustrial Utility and Safety Applications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe AO3481 S2 is deployed where precise analog control is inseparable from facility safety:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eEmergency Process Control\u003c\/strong\u003e\u003cspan class=\"\"\u003eManaging modulating control valves in high-pressure reactors.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe module's ability to self-calibrate and vote on output values prevents signal drift from causing hazardous overpressure or accidental shutdowns.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eTurbine Speed and Governor Regulation\u003c\/strong\u003e\u003cspan class=\"\"\u003eProviding high-fidelity analog setpoints for turbine control systems in power plants.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe TMR architecture ensures that rotational speed is managed safely,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eeven if a single hardware path encounters an error.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eOil and Gas Pipeline Pressure Management\u003c\/strong\u003e\u003cspan class=\"\"\u003eInterfacing with variable frequency drives (VFDs) and pressure control valves across expansive transport networks.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe ±0.\u003c\/span\u003e\u003cspan class=\"\"\u003e1% accuracy is vital for maintaining pipeline integrity and leak prevention.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eChemical Batch Reactor Stewardship\u003c\/strong\u003e\u003cspan class=\"\"\u003eRegulating heating and cooling flows where temperature-sensitive reactions occur.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe AO3481 S2 provides the fault-tolerant output necessary to prevent runaway reactions in volatile environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eNuclear Safety Logic Execution\u003c\/strong\u003e\u003cspan class=\"\"\u003eActing as a high-integrity signal source for secondary safety systems,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ewhere the module’s ruggedized construction and diagnostic reporting meet stringent regulatory oversight requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":45519062040749,"sku":"AO3481","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/triconex-ao-3481s2-analog-output-module-tazqokfvk4o.jpg?v=1766985958","url":"https:\/\/www.maxwellplc.com\/products\/ao3481-s2-triconex-analog-output-module-tmr-safety-system","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}