{"product_id":"aai143-s03-aai143-yokogawa-16-channel-fio-analog-input-card","title":"AAI143-S03 AAI143 Yokogawa 16-Channel FIO Analog Input Card","description":"\u003ch2\u003eYokogawa AAI143-S03 FIO Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-density analog signal acquisition in CENTUM VP distributed control systems, the \u003cstrong\u003eYokogawa AAI143-S03\u003c\/strong\u003e (\u003cstrong\u003eAAI143\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\u003eAAI143-S03 (also referencing NFAI143-S03 \/ AAI143-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\u003e0.50 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e25.1 cm x 7.0 cm x 10.0 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\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e250-350 Ohm (Power ON), greater than or equal to 500 kOhm (Power OFF)\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\u003eTemperature Drift\u003c\/td\u003e\n\u003ctd\u003ePlus or minus 16 uA per 10 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Update Period\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 between input and system for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThis FIO subsystem module integrates 16 isolated channels designed to process standard 4-20 mA current loops from field transmitters. It maintains a 1500 V AC galvanic isolation barrier between the external field wiring and the internal system backplane, preventing common-mode noise and electrical transients from disrupting the processor nodes. The hardware utilizes an internal input resistance of 250 to 350 Ohm during active operation to extract analog signals with a loop precision of plus or minus 16 uA. When configured inside a redundant node, the module continuously monitors channel diagnostics and executes automated hardware switchovers without interrupting active process loops.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the input impedance behave when the AAI143-S03 module loses power?\u003c\/p\u003e\n\u003cp\u003eA: During active powered operations, the input resistance measures between 250 and 350 Ohm. If a power-down event occurs, the internal circuitry shifts the input impedance to greater than or equal to 500 kOhm, preventing signal loop loading.\u003c\/p\u003e\n\u003cp\u003eQ: Does this module support hot-swap replacement while the node is powered and operating?\u003c\/p\u003e\n\u003cp\u003eA: Yes, if configured in a dual-redundant pair, you can execute a hot-swap on the inactive card without interrupting the signal scanning of the companion module.\u003c\/p\u003e\n\u003cp\u003eQ: What are the limits of the transmitter power supply provided by each channel?\u003c\/p\u003e\n\u003cp\u003eA: The module supplies an isolated transmitter power source between 19.0 and 25.5 V DC, with a hardware current limit set to a maximum of 25 mA per channel to protect against direct short circuits.\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 analog instrument cable shields to the system cabinet's dedicated instrument ground plate, ensuring only a single-ended ground point to prevent ground loop currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosive Protection:\u003c\/strong\u003e For deployment in chemical or sulfur-rich environments, seal the enclosure cabinets to maintain the G3 environmental rating and preserve the integrity of the conformal coating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Separation:\u003c\/strong\u003e Route the low-voltage field instrument cables and KS1 cables through dedicated wiring ducts, keeping them physically separated from high-voltage AC electrical lines by at least 15 cm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Screws Torque:\u003c\/strong\u003e Secure the field wire terminations to the pressure clamp terminal block using a torque-calibrated screwdriver, checking that all connections are secure to eliminate intermittent loop impedance shifts.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43665143169114,"sku":"AAI143-S03","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/562..jpg?v=1784182984","url":"https:\/\/www.spareoil.com\/products\/aai143-s03-aai143-yokogawa-16-channel-fio-analog-input-card","provider":"SpareOil Automation","version":"1.0","type":"link"}