{"product_id":"nfai841-s50-yokogawa-8-channel-analog-i-o-module","title":"NFAI841-S50 Yokogawa 8-Channel Analog I\/O Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe NFAI841-S50 is a high-density analog interface module specifically developed for Yokogawa’s FOUNDATION Fieldbus (FF) integrated ecosystems. This component provides eight independent channels for 4 to 20 mA DC signal processing, facilitating precise data acquisition from field instrumentation. Engineered for high-performance process automation, the module supports all standard FOUNDATION Fieldbus function blocks, allowing for flexible logic configuration and seamless integration with complex control strategies. Its robust IP66-rated housing and wide thermal operating range make it an ideal choice for localized installation near field devices or within remote junction boxes, ensuring high-fidelity signal transmission in demanding industrial environments.\u003c\/p\u003e\n\u003ch3\u003eCritical Performance Metrics and Dimensional Data\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Feature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannel Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSignal Input Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 to 20 mA DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±0.1% of full scale\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Draw\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.0 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIngress Protection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP66 (Dust-tight and protected against powerful water jets)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Dimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e35 mm (W) x 110 mm (H) x 58 mm (D)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDevice Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 200 g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Limits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40 to +85 °C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eImpedance (Power On)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePrimary Industrial Deployment\u003c\/h3\u003e\n\u003cp\u003eThis analog I\/O unit is designed for versatile application across various process sectors where FOUNDATION Fieldbus technology is the primary communication backbone. Typical deployment scenarios include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eReal-time monitoring of pressure and temperature transmitters in chemical processing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegration of flow meter data into larger Distributed Control Systems (DCS).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRemote field mounting in oil and gas upstream facilities requiring high ingress protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInterfacing with multiple field devices in water and wastewater treatment automation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the NFAI841-S50 an isolated or non-isolated module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: This model features a non-isolated design, meaning the input and output circuits share a common reference. It is best suited for applications where the field instruments and the control system share a consistent ground.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the IP66 rating for this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The IP66 rating ensures that the hardware is fully protected against dust ingress and can withstand high-pressure water jets from any direction, making it suitable for outdoor or wash-down industrial environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this module be used with third-party FOUNDATION Fieldbus devices?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, while optimized for Yokogawa field instruments, the NFAI841-S50 is fully compliant with standard FOUNDATION Fieldbus protocols and function blocks, ensuring interoperability with certified third-party devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the module require a separate power supply for the field loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The module operates on a 24 V DC system power supply and is capable of driving 4-20 mA signals with an output current of up to 25 mA to facilitate instrument communication.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What happens to the input impedance if the module loses power?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Under powered-on conditions, the impedance is a standard 250 Ω; however, if the power is cut, the impedance increases to 500 kΩ or more to protect the integrity of the signal loop.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45889957003437,"sku":"NFAI841-S50","price":1999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/yokogawa-nfai141-s00-s2-current-voltage-input-module-u05zn4zf3ct.jpg?v=1766985652","url":"https:\/\/www.maxwellplc.com\/products\/nfai841-s50-yokogawa-8-channel-analog-i-o-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}