{"product_id":"analog-input-module-yokogawa-aai143-h50-k4a00-hart","title":"Analog Input Module Yokogawa AAI143-H50\/K4A00 HART","description":"\u003ch2\u003eYokogawa AAI143-H50\/K4A00 Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa AAI143-H50\/K4A00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAAI143\u003c\/strong\u003e Analog Input Module, operates as a dedicated hardware component for 4-20 mA DC signal acquisition with integrated digital communication within CENTUM VP Distributed Control System (DCS) platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAAI143\u003c\/strong\u003e: 16-Channel Isolated Analog Input Module (4-20 mA DC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-H\u003c\/strong\u003e: With digital communication (HART protocol)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\u003c\/strong\u003e: With no explosion protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0\u003c\/strong\u003e: Basic type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\/K4A00\u003c\/strong\u003e: With KS Cable Interface Adapter (For connecting AEA4D Terminal Board) [Model: ATK4A-00]\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\u003eAAI143-H50\/K4A00\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\u003e2.0 kg (Shipping Weight) \/ Module: 0.30 to 0.45 kg\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\u003eChannels\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\u003eAllowable Input Current\u003c\/td\u003e\n\u003ctd\u003eUp to 24 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e270 to 350 ohms (Power ON), \u0026gt;= 500 kohms (Power OFF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 16 uA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Drift\u003c\/td\u003e\n\u003ctd\u003e+\/- 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\u003eTransmitter Power Supply\u003c\/td\u003e\n\u003ctd\u003e19.0 to 25.5 V DC (limit 25 mA)\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 (1 min)\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 Integration\u003c\/h3\u003e\n\u003cp\u003eThe AAI143-H50\/K4A00 executes continuous analog-to-digital conversion of 4-20 mA DC signals while concurrently processing HART digital telemetry superimposed on the loop. The \"H\" suffix denotes hardware native modulation\/demodulation components that extract field device diagnostics, calibration parameters, and secondary process variables. Operating alongside the \/K4A00 KS Cable Interface, the module routes these secondary digital packets directly to host controller registers without introducing latency to the high-speed 10 ms analog update scan.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the primary functional role of the \/K4A00 option on this module?\u003c\/p\u003e\n\u003cp\u003eA: The \/K4A00 suffix indicates the presence of a dedicated KS Cable Interface Adapter (Model ATK4A-00). This physical adapter allows direct connection between the module and an external AEA4D Terminal Board using standard KS cables.\u003c\/p\u003e\n\u003cp\u003eQ: How does the input impedance characteristic behave under loss-of-power scenarios?\u003c\/p\u003e\n\u003cp\u003eA: During normal operation (Power ON), the channel input resistance remains between 270 and 350 ohms to load the loop properly. If system power is lost (Power OFF), the circuit automatically shifts to a high-impedance state of 500 kohms or greater, electrically decoupling the channel.\u003c\/p\u003e\n\u003cp\u003eQ: Does this module support redundant pairing inside the node nest?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The AAI143-H50\/K4A00 supports dual-redundant configurations when mounted in paired slots of an FIO base plate. If a hardware fault occurs, the control system switches input tracking to the adjacent backup unit without signal dropout.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Installation:\u003c\/strong\u003e Align the module rails within the selected FIO base plate slot. Slide the unit inward until the top and bottom lock tabs latch onto the chassis. Verify the mechanical alignment of the \/K4A00 interface adapter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntrinsically Safe Boundaries:\u003c\/strong\u003e Suffix \"5\" and \"0\" confirm that the module contains no internal spark protection or galvanic barriers. For field transmitters located in hazardous zones, external zener barriers or galvanic isolators must be installed in series with the input lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Termination:\u003c\/strong\u003e Connect the AEA4D terminal board to the adapter using the recommended KS1 interface cable. Ensure all shield wires are continuously bonded back to the dedicated cabinet instrument earth busbar to preserve the 1500 V AC isolation rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower \u0026amp; Thermal Loading:\u003c\/strong\u003e Ensure the 24 V DC system supply meets the 540 mA load requirement per module under full transmitter loop load. Provide adequate cabinet venting to maintain operating temperatures below 70 deg C (or 60 deg C for optimal thermal stability).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43664950460506,"sku":"AAI143-H50\/K4A00","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/473_41821ba9-2d68-4651-a4cf-38c32e88b4d3.jpg?v=1784171910","url":"https:\/\/www.spareoil.com\/ar\/products\/analog-input-module-yokogawa-aai143-h50-k4a00-hart","provider":"SpareOil Automation","version":"1.0","type":"link"}