{"product_id":"yokogawa-nfai841-s50-s2-analog-input-module","title":"YOKOGAWA NFAI841-S50 S2 Analog Input Module","description":"\u003cp\u003eConfigured for process data acquisition in FOUNDATION Fieldbus platforms, the \u003cstrong\u003eYOKOGAWA NFAI841-S50 S2\u003c\/strong\u003e (\u003cstrong\u003eNFAI841\u003c\/strong\u003e Analog Input Module) provides direct physical\/electrical execution. This hardware component facilitates the intake of 4-20 mA DC signals from field instruments, integrating thermal and pressure process data into the distributed control system architecture through standardized function block execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe NFAI841-S50 S2 is a specific hardware revision within the N-IO or field-mountable I\/O product line. The \"S50\" suffix denotes the standard hardware configuration, while the \"S2\" indicates the specific manufacturing iteration\/revision level. No further modular matrix is provided for this unit.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eNFAI841-S50 S2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYOKOGAWA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJAPAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 cm x 11.0 cm x 5.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e0.1 % of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control and Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe NFAI841 module is engineered to support the full suite of FOUNDATION Fieldbus function blocks, allowing for interoperability with a wide range of process instrumentation. A notable characteristic of this model is its non-isolated electrical design, which necessitates careful consideration of common-mode voltage and ground potential differences in the field installation. The module is calibrated for 4-20 mA HART loop protocol compatibility, ensuring seamless data exchange and diagnostic feedback from connected transmitters to the control host.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Since the module is non-isolated, what precautions should be taken for grounded systems?\u003c\/p\u003e\n\u003cp\u003eA: In grounded configurations, ensure that the potential difference between field instruments and the system ground is minimized; otherwise, external signal isolators may be required to prevent ground loops.\u003c\/p\u003e\n\u003cp\u003eQ: Is the NFAI841 compatible with HART pass-through?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports HART communication, allowing digital diagnostics to be overlaid on the 4-20 mA analog signal path.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the installation site ambient temperature remains within the specified -40 to 85 deg C range to maintain specified accuracy.\u003c\/li\u003e\n\u003cli\u003eGiven the IP66 ingress protection rating, the unit is suitable for direct field mounting; ensure cable glands are tightened to maintain the seal against moisture and dust.\u003c\/li\u003e\n\u003cli\u003eTerminate 4-20 mA loops using shielded, twisted-pair cabling to reduce electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eFor the non-isolated design, verify that all connected transmitters are referenced to the same common ground point to avoid circulating currents.\u003c\/li\u003e\n\u003cli\u003eSecure the module using the mounting brackets, ensuring the footprint allows for adequate thermal dissipation despite the compact 3.5 cm width.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49791368691964,"sku":"NFAI841-S50 ?S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/NFAI841-S00_S21.jpg?v=1782781501","url":"https:\/\/www.electronicplc.com\/es\/products\/yokogawa-nfai841-s50-s2-analog-input-module","provider":"Electronic PLC","version":"1.0","type":"link"}