{"product_id":"aai143-s50-yokogawacentum-vp-16-channel-isolated-analog-input-module","title":"AAI143-S50 | YokogawaCENTUM VP 16-Channel Isolated Analog Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa AAI143-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-density analog input interface designed for the CENTUM VP Distributed Control System (DCS). This module captures 4 to 20 mA DC signals from 16 independent field transmitters, converting critical process data into digital telemetry for the control station. Unlike non-isolated variants, the AAI143-S50 provides full galvanic isolation between channels, ensuring signal integrity and system protection in complex electrical environments. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand original, guaranteeing factory-calibrated precision for your mission-critical control loops.\u003c\/p\u003e\n\u003ch3\u003ePart Number Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe AAI143 series utilizes a specific suffix logic to define hardware tiers and safety ratings:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSuffix Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngineering Specification\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\u003eAAI143\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBase Model: 16-Channel Analog Input Module (4-20 mA, Isolated)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e-S\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard type hardware architecture\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e5\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eExplosion Protection: With no explosion protection (Standard use)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConfiguration: Basic hardware style\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe AAI143-S50 delivers deterministic data acquisition within a standardized industrial form factor.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNumber of Channels:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e16, fully isolated\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Signal:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4 to 20 mA DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWithstanding Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1500V AC between input and system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e250\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\Omega$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(Standard)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-precision signal conditioning for DCS interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData Update Period:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports standard CENTUM VP 10ms\/50ms cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRack-mount within I\/O nest\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100% Brand New and Original\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe AAI143-S50 resolves specific integration challenges through its robust electrical design:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElimination of Ground Loop Noise:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFull channel-to-channel isolation prevents circulating ground currents from corrupting measurement data. This ensures high-accuracy signal processing even when field transmitters reside at different electrical ground potentials across large-scale facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior System Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1500V AC isolation barrier protects the DCS backplane and central processor from field-side surges or high-voltage faults. If a single channel experiences an electrical failure, the module contains the fault, preventing the shutdown of the entire I\/O segment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Cabinet Optimization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePacking 16 isolated channels into a single module slot maximizes cabinet rail space. This density reduces the total number of I\/O nests required in the control room, lowering infrastructure costs for refineries and chemical plants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDeterministic Loop Stability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe hardware architecture ensures minimal signal latency. This speed allows the DCS to execute PID algorithms with real-time process data, maintaining stable control over fast-acting variables like pressure and turbine flow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the isolated AAI143 over the non-isolated AAI141?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AAI143-S50 provides galvanic isolation between every channel. This prevents \"crosstalk\" and ground loops that frequently occur in non-isolated modules when field sensors share a common return or experience electrical interference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the AAI143-S50 support 2-wire transmitter power?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. When integrated with the appropriate Yokogawa terminal board, the system distributes power to 2-wire transmitters through the signal loop, while the AAI143-S50 monitors the returning 4-20 mA current.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this module in hazardous areas?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \"Suffix 5\" code indicates this specific model carries no explosion protection rating. You must install this module in a safe-zone control cabinet. For hazardous area requirements, refer to Yokogawa's intrinsically safe (IS) module series.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the recommended replacement procedure for this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AAI143-S50 supports hot-swapping in a redundant configuration. Maintenance teams replace the module without powering down the I\/O nest, ensuring continuous process monitoring and reducing Mean Time to Repair (MTTR).\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53297046159544,"sku":"AAI143-S50","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/AAI841-S002_8a17fa42-a0ba-4e9f-a899-4ea4e6c620ca.jpg?v=1776158668","url":"https:\/\/www.globalpetroparts.com\/products\/aai143-s50-yokogawacentum-vp-16-channel-isolated-analog-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}