{"product_id":"nfai143-h50-a4s0-yokogawa-prosafe-rs-analog-input-module","title":"NFAI143-H50\/A4S0 Yokogawa ProSafe-RS Analog Input Module","description":"\u003ch2\u003eYokogawa NFAI143-H50\/A4S0 Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-accuracy analog signal acquisition in ProSafe-RS safety systems, the \u003cstrong\u003eYokogawa NFAI143-H50\/A4S0\u003c\/strong\u003e (\u003cstrong\u003eNFAI143\u003c\/strong\u003e Analog Input Module) provides direct physical\/electrical execution.\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\u003eNFAI143-H50\/A4S0\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\u003e0.3 kg (Net), 0.45 kg (Shipping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard rack-mounted module enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e230 mA @ 5 VDC, 540 mA @ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16 isolated input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Range\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA DC (allowable up to 24 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit A\/D conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% of span\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Update Cycle\u003c\/td\u003e\n\u003ctd\u003e10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 V RMS channel-to-backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL2 \/ SIL3 (IEC 61508 Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe NFAI143-H50\/A4S0 module processes 16 isolated current channels from field transmitters into digital safety signals. Internal optical isolation rated at 1500 V RMS prevents ground loops and electrical noise from interfering with system backplane communications. Designed for process interface architectures, the hardware supports 4-20 mA HART loop protocol signaling alongside integrated cold junction compensation (CJC) logic, ensuring high conversion precision and real-time open-wire fault detection across critical control loops.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What signal types does the NFAI143-H50\/A4S0 module support on its input channels?\u003c\/p\u003e\n\u003cp\u003eA: The module accepts standard 4 to 20 mA DC current signals from field transmitters, with an allowable maximum input current of 24 mA DC.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module maintain system isolation during electrical surge events?\u003c\/p\u003e\n\u003cp\u003eA: Integrated channel-to-backplane galvanic isolation withstands up to 1500 V AC for 1 minute, preventing field-side transients from entering the backplane bus.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInsert the NFAI143-H50\/A4S0 module vertically into the designated backplane slot of the ProSafe-RS node unit until the locking mechanisms click into place. Tighten the top and bottom retaining screws to establish chassis grounding and mechanical retention. Connect the field wiring arm to the front terminal block, ensuring shielded twisted-pair cables are terminated at the cabinet earth bus to minimize noise pickup. Maintain clear vertical airflow paths above and below the rack to keep operating temperatures within the specified -20 to +60 deg C range.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43838668341338,"sku":"NFAI143","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/805..jpg?v=1786592510","url":"https:\/\/www.spareoil.com\/products\/nfai143-h50-a4s0-yokogawa-prosafe-rs-analog-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}