{"product_id":"yokogawa-aai143-s50-analog-input-module-4-to-20-ma-16-channel","title":"Module d'entrée analogique (4 à 20 mA, 16 canaux) Yokogawa AAI143-S50","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa AAI143-S50 (AAI143S50)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-precision 16-channel analog input module designed for the CENTUM VP and CENTUM CS 3000 Integrated Production Control Systems. Engineered to handle standard 4 to 20 mA signals, this module is a foundational component in process industries such as oil and gas, chemical processing, and pharmaceutical manufacturing. By providing high-density signal acquisition and superior galvanic isolation, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI143-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures that critical process variables—such as pressure, flow, and temperature—are transmitted to the DCS with absolute fidelity, maintaining system stability and preventing costly process interruptions.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAAI143-S50\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYokogawa\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSuffix Meaning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard Type, Dual-Redundant, Basic Spec\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Signal\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 to 20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Resistance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 Ohms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e+\/- 0.1% of Full Scale\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e500 VAC between field and system\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 60 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.30 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eTechnical FAQs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What is the difference between the AAI143-S50 and the AAI143-H50?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: The AAI143-S50 is the standard analog input module, whereas the H-version (AAI143-H50) typically denotes the version with dedicated HART communication support built-in for every channel. Always verify your system's software license for HART passthrough functionality.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Can I use this module for 2-wire and 4-wire transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: Yes. The AAI143-S50 can interface with both. For 2-wire transmitters, an external 24 VDC power supply is usually required to loop-power the instrument, as the module itself is a current-sinking input device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Does the S50 version support module redundancy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: Yes. The \"5\" in the suffix confirms that it is redundancy-ready. When installed in pairs on a redundant-capable terminal board, the system ensures bumpless transfer in the event of a single module failure.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Loop Shielding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTo prevent EMI\/RFI interference from affecting the 0.1% accuracy, ensure that signal cables are twisted pairs with an overall shield. The shield should be grounded at only one point—typically at the DCS cabinet ground bus—to avoid ground loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Tightening:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen using the KS1 or pressure-clamp terminals, apply a torque of 0.5 to 0.6 Nm. Over-tightening can damage the module's header pins, while under-tightening leads to contact resistance that skews mA readings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRedundancy Validation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAfter installing a redundant pair, verify the status in the HIS (Human Interface Station) Maintenance Map. Both modules should show a \"Normal\" status, with one designated as \"Active\" and the other as \"Standby.\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe AAI143-S50 is renowned for its long-term stability and minimal calibration drift, even in high-vibration or high-temperature environments. Its high-speed 10 ms data update cycle makes it suitable for fast-acting control loops such as anti-surge control in compressors. Furthermore, its design allows for hot-swapping under power, ensuring that instrument technicians can replace faulty modules without interrupting the continuous process control of the remaining 15 channels or the rest of the FIO node.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52695400513899,"sku":"AAI143-S50","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/yokogawa-aai143-s50-current-input-module-qzefx3js3px_b25bcaea-17d8-4140-867c-6af35c377e52.jpg?v=1766133709","url":"https:\/\/www.plcprotech.com\/fr\/products\/yokogawa-aai143-s50-analog-input-module-4-to-20-ma-16-channel","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}