{"product_id":"yokogawa-aar181-s50-rtd-input-module","title":"Yokogawa AAR181-S50 RTD Input Module","description":"\u003cp\u003eConfigured for high-accuracy RTD sensor measurement and temperature monitoring in CENTUM VP platforms, the \u003cstrong\u003eYokogawa AAR181-S50\u003c\/strong\u003e (\u003cstrong\u003eAAR181\u003c\/strong\u003e Isolated RTD Input Module) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe AAR181-S50 model code indicates specific functional and revision options within the Yokogawa DCS hardware matrix. In this structure, \u003cstrong\u003eAAR181\u003c\/strong\u003e identifies the base 12-channel isolated temperature input module, while the \u003cstrong\u003e-S50\u003c\/strong\u003e suffix specifies the standard conformal coating, terminal connection layout, and system revision parameters for installation in CENTUM VP baseplates.\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\u003eAAR181-S50\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\u003e0.2 kg (0.44 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Yokogawa CENTUM VP Module Footprint\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\u003e310 mA (5 VDC), 450 mA (24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e12 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Input Types\u003c\/td\u003e\n\u003ctd\u003eRTD (Pt100, Pt1000), TC, mV, 4-20 mA DC, 1-5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Period\u003c\/td\u003e\n\u003ctd\u003e10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response Time\u003c\/td\u003e\n\u003ctd\u003e100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eChannel-to-channel and channel-to-system isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Process Control \u0026amp; Isolation Architecture\u003c\/h3\u003e\n\u003cp\u003eThe Yokogawa AAR181-S50 RTD input card processes high-speed thermal sensor inputs across CENTUM VP automation control nodes. Built with channel-to-channel isolation circuits, the card isolates incoming RTD sensor lines from backplane logic, eliminating ground loops and noise interference. The module delivers high-density data acquisition with a fast 10 ms update period and 100 ms step response time, supporting 4-20 mA HART loop protocol connectivity and cold junction compensation (CJC) for temperature monitoring applications.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What sensor types are natively supported by the inputs on the AAR181-S50?\u003c\/p\u003e\n\u003cp\u003eA: The module is optimized for standard RTD sensors (such as Pt100 and Pt1000) while also supporting Thermocouples (TC), mV inputs, 4-20 mA DC, and 1-5 VDC signals.\u003c\/p\u003e\n\u003cp\u003eQ: How does channel-to-channel isolation affect temperature signal processing on the AAR181-S50?\u003c\/p\u003e\n\u003cp\u003eA: Channel-to-channel isolation prevents field-side electrical noise, common-mode voltages, and ground loops from cross-contaminating adjacent channels, ensuring measurement accuracy within ±0.1% of reading.\u003c\/p\u003e\n\u003cp\u003eQ: What are the backplane power supply current requirements for the AAR181-S50 card?\u003c\/p\u003e\n\u003cp\u003eA: The module draws a maximum current of 310 mA from the internal 5 VDC bus line and 450 mA from the auxiliary 24 VDC supply rail.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that the card cage guide rails are clean and free of physical debris prior to sliding the AAR181-S50 into its designated baseplate slot.\u003c\/li\u003e\n\u003cli\u003eSeat the module firmly into the backplane connector and hand-tighten the top and bottom retaining screws to ensure proper chassis grounding.\u003c\/li\u003e\n\u003cli\u003eRoute RTD sensor lead wires through dedicated low-voltage instrument wireways separate from AC power and motor cables to minimize EMI noise coupling.\u003c\/li\u003e\n\u003cli\u003eTerminate individual signal cable shields to the system ground bus bar using a single-point grounding configuration.\u003c\/li\u003e\n\u003cli\u003eMaintain adequate cabinet airflow and ventilation to ensure operating ambient temperatures remain strictly within specified limits.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52653260865816,"sku":"AAR181-S50","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/EC401-10S3_Cocoai_f61a7a6e-eae1-4b45-982c-4f191bd82208.jpg?v=1789091631","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-aar181-s50-rtd-input-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}