{"product_id":"yokogawa-ai-nfai-143-analog-input-module","title":"YOKOGAWA AI NFAI 143 Analog Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA NFAI143\u003c\/strong\u003e is a high-density, 16-channel analog input module engineered for precision acquisition of 4–20 mA process signals within Yokogawa distributed control systems (DCS). It provides robust channel-to-channel isolation and flexible configuration options for modern industrial process loops.\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\u003eAI NFAI 143\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\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16-channel (Isolated)\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\u003e±0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e100 ms (Step response)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefresh 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 AC (Input to System)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; Loop Technical Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe NFAI143 is optimized for reliability in mission-critical automation environments. Each channel features individual galvanic isolation up to 1500 V AC, effectively preventing common-mode noise and ground loops from impacting signal accuracy. The module provides a selectable transmitter power supply (24.0–25.5 V) for field devices, supporting both 2-wire and 4-wire configurations, which can be easily toggled via the hardware setting pins to accommodate diverse field instrumentation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: What protection does the module offer against signal faults?\u003c\/p\u003e\n\u003cp\u003eA: The NFAI143 includes built-in overcurrent protection for all 16 channels, safeguarding the internal circuitry against short-circuits in the field wiring or faulty transmitter outputs.\u003c\/p\u003e\n\u003cp\u003eQ: How can I change the transmitter type for a specific channel?\u003c\/p\u003e\n\u003cp\u003eA: Transmitter types (2-wire vs. 4-wire) are configured using hardware setting pins located on the module. Ensure the system is powered down or in a safe maintenance state before adjusting these pins to avoid electrical hazards or configuration errors.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Install the module in a clean, ventilated control cabinet. Maintain adequate spacing between modules to ensure optimal heat dissipation and prevent thermal drift, which is rated at a maximum of ±0.01%\/°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Use shielded twisted-pair instrumentation cable for all 4–20 mA loops. Terminate the shield drain at the dedicated cabinet ground bar to maintain noise immunity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Verification:\u003c\/strong\u003e The module draws 230 mA (5 V DC) and 540 mA (24 V DC). Verify that the control station power supply bus has sufficient overhead capacity to support the cumulative consumption of all installed I\/O modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration:\u003c\/strong\u003e While the module is factory-calibrated for ±0.1% accuracy, periodic loop checks should be performed during plant shutdowns to ensure the signal path remains within tolerances, especially after extensive field maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":50361085362428,"sku":"AI NFAI 143","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/AI_NFAI_143.jpg?v=1784510881","url":"https:\/\/www.electronicplc.com\/products\/yokogawa-ai-nfai-143-analog-input-module","provider":"Electronic PLC","version":"1.0","type":"link"}