{"product_id":"yokogawa-aai135-h00-k4a00-isolated-analog-input-module","title":"Yokogawa AAI135-H00\/K4A00 Isolated Analog Input Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI135-H00\/K4A00\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance analog input module engineered for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa CENTUM VP and CS 3000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eintegrated control systems. This variant provides\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eeight channels of fully isolated 4–20 mA inputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith integrated\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHART communication\u003c\/strong\u003e, enabling accurate signal acquisition and advanced field device diagnostics.\u003c\/p\u003e\n\u003cp\u003eThe integrated\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eATK4A-00 KS Cable Interface Adapter\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esupports efficient wiring in high-density instrumentation panels. Individual channel isolation eliminates ground loops and improves measurement reliability in critical industrial environments.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Configuration\u003c\/td\u003e\n\u003ctd\u003e8 channels, fully isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Range\u003c\/td\u003e\n\u003ctd\u003e4–20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHART Communication\u003c\/td\u003e\n\u003ctd\u003eSupported (Standard suffix H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd\u003e±16 µA (standard operating conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Active)\u003c\/td\u003e\n\u003ctd\u003e290 Ω @ 20 mA\u003cbr\u003eUp to 450 Ω @ 4 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Passive)\u003c\/td\u003e\n\u003ctd\u003e≥ 500 kΩ (power off)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Current\u003c\/td\u003e\n\u003ctd\u003e25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e500 V AC, 1 minute\u003cbr\u003e(Input-to-system and channel-to-channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Interface\u003c\/td\u003e\n\u003ctd\u003eIntegrated KS cable adapter (ATK4A-00)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Cycle\u003c\/td\u003e\n\u003ctd\u003e≤ 10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Mass\u003c\/td\u003e\n\u003ctd\u003e 0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003ePractical Applications\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI135-H00\/K4A00\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis widely used in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epetrochemical, pharmaceutical, and power generation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efacilities for high-accuracy monitoring of pressure, temperature, and flow transmitters.\u003c\/p\u003e\n\u003cp\u003eHART functionality enables\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eremote configuration, diagnostics, and device health monitoring\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edirectly from the control system, reducing field maintenance workload and improving system availability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCommon Queries\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module provide power to field transmitters?\u003c\/strong\u003e\u003cbr\u003eNo. The AAI135 is a current input module only. For applications requiring system-supplied loop power for 2-wire transmitters, consider the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI143\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAAI841\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseries, depending on loop power architecture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does variable input resistance affect loop calculations?\u003c\/strong\u003e\u003cbr\u003eInput resistance increases as loop current decreases to maintain signal stability. For conservative loop design, always use the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emaximum value of 450 Ω\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto ensure sufficient transmitter voltage headroom at minimum current.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the KS cable interface adapter removable?\u003c\/strong\u003e\u003cbr\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eK4A00\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoption indicates the module is factory-equipped with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eATK4A-00 KS Cable Interface Adapter\u003c\/strong\u003e, optimized for Yokogawa standard KS cables and fast cabinet wiring.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51683485253944,"sku":"AAI135-H00\/K4A00","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/AAI135-H00K4A001.jpg?v=1770001407","url":"https:\/\/www.automodulexpert.com\/tr\/products\/yokogawa-aai135-h00-k4a00-isolated-analog-input-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}