{"product_id":"16-channel-fio-analog-input-card-yokogawa-nfai141-s00-nfai141","title":"16-Channel FIO Analog Input Card Yokogawa NFAI141-S00 NFAI141","description":"\u003ch2\u003eYokogawa NFAI141-S00 FIO Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa NFAI141-S00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNFAI141\u003c\/strong\u003e Analog Input Module, operates as a dedicated hardware component for multi-channel analog signal acquisition within CENTUM VP \/ CS 3000 FIO systems.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe NFAI141 series uses standardized suffix configurations to define specific electrical interface and protection attributes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Model (NFAI141):\u003c\/strong\u003e Designates a 16-channel, isolated 4-20 mA current\/voltage input module interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType Suffix (-S):\u003c\/strong\u003e Specifies the standard type module configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Suffix (0):\u003c\/strong\u003e Indicates a design built without intrinsic safety explosion protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOption Suffix (0):\u003c\/strong\u003e Identifies the default standard physical termination and housing option without specialized adapters.\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\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\u003eNFAI141-S00\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\u003e0.24 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.2 cm x 12.4 cm x 12.6 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e230 mA (at 5 V DC), 540 mA (at 24 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16 isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\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\u003ePlus or minus 16 uA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 VAC between input and system for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Period\u003c\/td\u003e\n\u003ctd\u003e10 ms\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 and Diagnostics\u003c\/h3\u003e\n\u003cp\u003eThe module features a robust signal interface incorporating channel-to-system galvanic isolation rated to withstand 1500 VAC. The input circuitry utilizes 250 to 350 Ohm resistance parameters during active power-on cycles to convert incoming 4-20 mA current loops into internal system logic voltages. A diagnostic engine continuously registers live values, detecting out-of-range sensor currents up to 24 mA and triggering alerts for system loop faults. Integrated transmitter supply outputs provide a steady 19.0 to 25.5 VDC loop power, limited to 25 mA per channel, which isolates field-side ground loops and prevents single-point field faults from disrupting the wider FIO backplane.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the input resistance change when the module loses backplane power?\u003c\/p\u003e\n\u003cp\u003eA: When the module is powered on, the input resistance registers between 250 and 350 Ohm. If the system loses power (Power OFF), the resistance jumps to greater than or equal to 500 kOhm to prevent current flow from back-feeding into the system.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module operate in dual-redundant configurations, and how is line termination managed?\u003c\/p\u003e\n\u003cp\u003eA: Yes, dual-redundant configuration is fully supported using two adjacent slots on the FIO node. You must connect them using a compatible dual-redundant terminal block or a specialized KS1 cable interface to split the field signals.\u003c\/p\u003e\n\u003cp\u003eQ: How does ambient temperature affect the measurement accuracy?\u003c\/p\u003e\n\u003cp\u003eA: The baseline accuracy of the module is plus or minus 16 uA. For every 10 deg C shift in ambient operating temperature, an additional drift of plus or minus 16 uA must be accounted for in the engineering calibration limits.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding:\u003c\/strong\u003e Connect all external analog signal cable shields to the dedicated cabinet instrument ground bar, ensuring only a single-ended ground point exists to eliminate ground loop current errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosive Protection:\u003c\/strong\u003e For installations in chemical process facilities, ensure the cabinet enclosure remains sealed to maintain the ISA G3 conformal coating protection barrier against corrosive atmospheres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Separation:\u003c\/strong\u003e Keep the low-voltage KS1 signal cables physically separated from any high-voltage motor control power lines by at least 15 cm to minimize electromagnetic interference (EMI) coupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Connection Stability:\u003c\/strong\u003e Secure all wiring connections to the pressure clamp terminal block using a torque-calibrated screwdriver to prevent intermittent circuit resistance shifts on the 16 analog loops.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43665131274330,"sku":"NFAI141-S00","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/560..jpg?v=1784182202","url":"https:\/\/www.spareoil.com\/ar\/products\/16-channel-fio-analog-input-card-yokogawa-nfai141-s00-nfai141","provider":"SpareOil Automation","version":"1.0","type":"link"}