{"product_id":"yokogawa-nfar181-s50-temperature-input-module","title":"Yokogawa NFAR181-S50 Temperature Input Module","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFAR181-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a multi-channel temperature measurement input module developed by Yokogawa for use in ProSafe-RS safety-instrumented systems and high-reliability control platforms. It is designed to acquire precise temperature data from RTD and thermocouple sensors while maintaining strict electrical isolation between channels, ensuring dependable operation in electrically noisy and safety-critical environments.\u003c\/p\u003e\n\u003cp\u003eThis module is commonly deployed in continuous-process industries where temperature integrity directly impacts process safety, equipment protection, and regulatory compliance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFAR181-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides twelve individually isolated input channels, allowing simultaneous measurement of multiple temperature points without signal interference. Each channel supports configurable sensor types, enabling flexible field wiring and simplified spare-parts management across mixed RTD and thermocouple installations.\u003c\/p\u003e\n\u003cp\u003eIntegrated cold-junction compensation and digital linearization ensure stable and repeatable measurements across wide temperature ranges. The module is optimized for fast data refresh, supporting control and safety logic that requires timely temperature feedback.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSupported Sensor Inputs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eRTD Measurement\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePt100 RTD, 3-wire configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eJPt100 RTD, 3-wire configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMeasurement range from −200 °C to +800 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTypical accuracy up to ±0.15 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInternal lead-wire resistance compensation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThermocouple Measurement\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible thermocouple types include J, K, E, T, B, R, and S\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupports additional MIL-standard thermocouple variants\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilt-in cold-junction compensation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic linearization per selected thermocouple type\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePerformance Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eInput channels: 12, fully isolated\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChannel-to-channel isolation: Supported\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChannel-to-system isolation: Supported\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eData update interval: Approximately 1 second\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLong-term measurement stability optimized for continuous operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh resistance to electromagnetic and conducted noise\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eMechanical and Environmental Data\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eModule form factor: Compact I\/O card for Yokogawa safety systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: 130 × 107.5 × 32.8 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 0.3 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for control room and field-mounted safety cabinets\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFAR181-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis designed for seamless integration with Yokogawa ProSafe-RS safety controllers and related I\/O subsystems. Configuration and diagnostics are performed through Yokogawa engineering tools, allowing sensor selection, range assignment, and fault monitoring at the system level.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSafety-instrumented temperature monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBurner and furnace protection systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReactor and vessel temperature supervision\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTurbine and auxiliary equipment monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-integrity shutdown and alarm systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan RTD and thermocouple sensors be mixed on the same module?\u003c\/strong\u003e\u003cbr\u003eYes. Each channel can be configured independently, allowing RTD and thermocouple inputs to coexist on a single\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNFAR181-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodule.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the module suitable for SIL-rated systems?\u003c\/strong\u003e\u003cbr\u003eYes. The module is intended for use in Yokogawa ProSafe-RS safety systems and meets the reliability requirements typical of SIL-based architectures when used in approved configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require external cold-junction compensation hardware?\u003c\/strong\u003e\u003cbr\u003eNo. Cold-junction compensation is integrated into the module for thermocouple measurements.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":42884313972826,"sku":"NFAR181-S50","price":264.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/NFAR181-S50R8S10.jpg?v=1750399777","url":"https:\/\/www.plcmasters.com\/id\/products\/yokogawa-nfar181-s50-temperature-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}