{"product_id":"yokogawa-nfai143-s50-a4s00-analog-input-module-16-channel-fio","title":"Yokogawa NFAI143-S50\/A4S00 Analog Input Module 16-Channel FIO","description":"\u003ch2\u003eYokogawa NFAI143-S50 Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa NFAI143-S50\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eNFAI143-S50\/A4S00\u003c\/strong\u003e Analog Input Module, operates as a dedicated hardware component for 16-channel analog signal acquisition within FIO and CENTUM VP systems. Configured for high-speed process monitoring, this module executes 16-bit analog-to-digital conversion, providing isolated 4-20 mA current input processing with integrated loop power supply capabilities for both 2-wire and 4-wire field instrumentation.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNFAI143\u003c\/td\u003e\n\u003ctd\u003eBase Model: 16-Channel Analog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-S50\u003c\/td\u003e\n\u003ctd\u003eStandard Version: Field I\/O (FIO) Subsystem Support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\/A4S00\u003c\/td\u003e\n\u003ctd\u003eOrdering Option: Standard Terminal Block\/Connector Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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-S50\/A4S00\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e130 mm x 107 mm x 32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C 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 (5 V DC), 540 mA (24 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Capacity\u003c\/td\u003e\n\u003ctd\u003e16 Isolated channels\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eNFAI143-S50\u003c\/strong\u003e utilizes channel-to-channel isolation rated at 1500 V AC to prevent ground loops and electrical interference from propagating through the system bus. Each channel provides a dedicated 24-25.5 V DC transmitter power supply, with integrated overcurrent protection set at a 25 mA limit. The module supports HART protocol transparency, facilitating digital diagnostic overlays on analog loops. With a 10 ms data refresh cycle and a 100 ms step response, the module ensures deterministic signal ingestion for real-time control loops and safety instrumented systems.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the transmitter wiring mode selected for individual channels?\u003c\/p\u003e\n\u003cp\u003eA: The configuration for 2-wire or 4-wire transmitter operation is determined by physical setting pins located on the module interface. Ensure these pins are set correctly before energizing the loop.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support hot-swapping under load?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the NFAI143-S50 is designed to support hot-swap replacement within the FIO rack. During the swap, the system backplane maintains integrity while the replacement module performs self-initialization.\u003c\/p\u003e\n\u003cp\u003eQ: Is the cold-junction compensation (CJC) relevant to this module?\u003c\/p\u003e\n\u003cp\u003eA: While the documentation notes CJC, this module is specifically optimized for current-loop inputs. CJC functions are primarily utilized in modules intended for thermocouple signal processing.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting and Bonding\u003c\/strong\u003e: Secure the module to the designated FIO backplane. Ensure the rack is effectively bonded to the cabinet earth bus to maintain the 1500 V AC isolation rating against common-mode transients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Practice\u003c\/strong\u003e: Utilize shielded, twisted-pair cables for signal runs. Connect the cable shield to the cabinet grounding bar at the entry point. Avoid running signal lines adjacent to high-voltage AC cables to maintain the 0.1% accuracy threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTermination\u003c\/strong\u003e: For 2-wire transmitter loops, verify that the module provides the loop power; for 4-wire transmitters, ensure the external power supply polarity matches the module's input requirements to prevent diode-bridge overcurrent trips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management\u003c\/strong\u003e: Despite the wide operating range, install the module in a location with adequate airflow. Maintain clearances as specified by the system installation manual to ensure consistent performance at the 70 deg C upper thermal limit.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43585431765082,"sku":"NFAI143-S50","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/383.1_d0d0dff3-9e19-4a88-b2c9-e4fa3c36a54d.jpg?v=1783049539","url":"https:\/\/www.spareoil.com\/ar\/products\/yokogawa-nfai143-s50-a4s00-analog-input-module-16-channel-fio","provider":"SpareOil Automation","version":"1.0","type":"link"}