{"product_id":"yokogawa-aar181-s50-centum-vp-12-channel-rtd-input-module","title":"Yokogawa AAR181-S50 CENTUM VP 12-Channel RTD Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa AAR181-S50\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a precision temperature acquisition interface for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCENTUM VP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated Production Control System. This module manages 12 isolated channels, specifically designed to process signals from Resistance Temperature Detectors (RTDs) such as Pt100 or JPt100. By converting low-level resistance changes into high-resolution digital data, the AAR181-S50 enables the control system to monitor critical thermal variables across complex industrial processes with exceptional accuracy.\u003c\/p\u003e\n\u003ch3\u003ePart Number Breakdown\u003c\/h3\u003e\n\u003cp\u003eYokogawa utilizes specific suffix codes to define the functional and environmental hardware profile:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAAR181\u003c\/strong\u003e: RTD Input Module (12-channel, Isolated)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-S\u003c\/strong\u003e: Standard functional type for universal temperature monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e5\u003c\/strong\u003e: Configured without explosion protection (for safe area installation)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0\u003c\/strong\u003e: Basic environmental type with standard coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe AAR181-S50 maintains rigorous signal integrity through the following parameters:\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\u003e12 isolated channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Signal:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRTD (Pt100, JPt100, etc.)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRobust channel-to-system and channel-to-channel isolation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData Refresh Cycle:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSynchronized with the CENTUM VP bus communication\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3-wire or 4-wire resistance measurement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-resolution digital conversion with minimal drift\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Interface:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFIO (Field network I\/O) bus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRack-mounted in ESB\/ER Bus Node Units\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElimination of Signal Interference:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIndividual channel isolation prevents ground loops and electrical noise from migrating between field sensors or into the system backplane. This ensures stable temperature readings even in environments with heavy electromagnetic interference (EMI).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Thermal Mapping:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProcessing 12 RTD inputs within a single module slot allows engineers to maximize rack density. This reduces the total hardware footprint in control cabinets, solving the problem of limited space in offshore platforms or modular refineries.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStreamlined Maintenance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module integrates directly into the FIO architecture, allowing for hot-swap replacement in redundant configurations. This capability prevents process interruptions when performing hardware maintenance or system upgrades.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Signal Conditioning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdvanced internal compensation logic accounts for lead-wire resistance in 3-wire RTD configurations. This eliminates measurement errors caused by long cable runs between the field sensors and the control room.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this AAR181-S50 module supplied as a brand-new unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We supply the Yokogawa AAR181-S50 exclusively as a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e, original factory product. Each module ships in its authentic packaging to ensure peak performance and longevity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the AAR181-S50 for 2-wire RTDs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile designed for 3-wire and 4-wire precision measurements, you can adapt the module for 2-wire sensors by installing external jumpers at the terminal block. However, 3-wire connections remain the industrial standard to ensure lead-wire compensation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the \"5\" suffix?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \"5\" indicates that this specific variant lacks explosion-proof certification. You should install this module in safe zones or within enclosures that meet the necessary local safety requirements for non-hazardous locations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the isolation protect my system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AAR181-S50 features isolation between the field inputs and the internal 5V system logic. If a field-side voltage surge occurs—due to lightning or equipment failure—the isolation barrier prevents the high voltage from damaging the central controller or other I\/O modules on the same bus.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52571578728757,"sku":"AAR181-S50","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/AAT141-S001_6f924c7b-9c8c-480e-a4fa-f42932b69300.png?v=1776237053","url":"https:\/\/www.5gplc.com\/products\/yokogawa-aar181-s50-centum-vp-12-channel-rtd-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}