{"product_id":"yokogawa-nfai135-s00-analog-input-module","title":"Yokogawa NFAI135-S00 Analog Input Module","description":"\u003ch2\u003eYokogawa NFAI135 Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for 4-20 mA signal acquisition in CENTUM VP and CENTUM CS 3000 I\/O subsystems, the \u003cstrong\u003eYokogawa NFAI135-S00\u003c\/strong\u003e (\u003cstrong\u003eNFAI135\u003c\/strong\u003e Analog Input Module) provides direct electrical termination and digitization of field transmitter current loops into DCS process data via a 40-channel isolated input architecture.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eModel: NFAI135\u003c\/li\u003e\n\u003cli\u003eSuffix: S00\n\u003cul\u003e\n\u003cli\u003eS: Standard type configuration\u003c\/li\u003e\n\u003cli\u003e0: Standard hardware revision\u003c\/li\u003e\n\u003cli\u003e0: Basic configuration variant without additional protective or coating options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModelBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa NFAI135-S00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eYokogawa Electric Corporation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.36 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003eMax. 520 mA @ 5 VDC internal system power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e40 isolated inputs\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\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e250 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable Input Current\u003c\/td\u003e\n\u003ctd\u003eMax. 30 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Cycle\u003c\/td\u003e\n\u003ctd\u003e100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e500 VAC channel-to-channel, 1500 VAC input-to-system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation Architecture\u003c\/h3\u003e\n\u003cp\u003eThe module implements per-channel electrical isolation within the CENTUM I\/O node backplane interface, separating each 4-20 mA loop termination from adjacent measurement paths and system logic ground. This architecture reduces ground loop propagation paths and limits common-mode disturbance transfer during field-side transient events. Integration is aligned with Yokogawa CENTUM VP I\/O node assemblies such as ANB10S and ANT10D, where isolation domains are maintained at the terminal and A\/D conversion boundary.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the module accept voltage input directly (e.g., 1-5 VDC)?\u003c\/strong\u003e\u003cbr\u003eA: The documented primary configuration is 4-20 mA current input. Voltage measurement requires external conversion via precision shunt resistor unless explicitly supported by variant wiring configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is hot-swap supported during operation?\u003c\/strong\u003e\u003cbr\u003eA: Hot insertion\/removal is supported only within redundant node configurations and approved I\/O base assemblies. Signal disturbance may occur if removed under active single-redundant operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the electrical isolation boundary of the module?\u003c\/strong\u003e\u003cbr\u003eA: Isolation is implemented between each input channel and between input circuitry and system backplane logic, with specified withstand levels up to 1500 VAC.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaintain shield grounding at single-point termination on cabinet side to avoid loop currents on 4-20 mA return conductors.\u003c\/li\u003e\n\u003cli\u003eEnsure field wiring separation between analog input loops and high-voltage switching conductors to minimize capacitive coupling.\u003c\/li\u003e\n\u003cli\u003eVerify correct seating on Yokogawa I\/O node base units (e.g., ANB10S \/ ANT10D) before energizing backplane power.\u003c\/li\u003e\n\u003cli\u003eUse specified Yokogawa signal cables (e.g., KS1) or equivalent shielded twisted pair conductors for loop integrity.\u003c\/li\u003e\n\u003cli\u003eDo not exceed rated input current of 30 mA per channel during loop testing or transmitter simulation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44163214475352,"sku":"NFAI135-S00","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/NFAI135-S00-3.jpg?v=1780284538","url":"https:\/\/www.industriaxplc.com\/products\/yokogawa-nfai135-s00-analog-input-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}