{"product_id":"yokogawa-aai835-s00-k4a00-centum-vp-isolated-current-input-module","title":"Yokogawa AAI835-S00\/K4A00 CENTUM VP Isolated Current Input Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa AAI835-S00\/K4A00\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides high-density, 16-channel isolated current input capabilities for the CENTUM VP and CS 3000 Distributed Control Systems (DCS). This module specializes in capturing 4 to 20 mA DC signals with a focus on high-voltage isolation, shielding the system backplane from field-side electrical disturbances. It serves as a critical data acquisition component for large-scale process industries requiring maximum signal integrity.\u003c\/p\u003e\n\u003ch2\u003ePart Number Breakdown: AAI835-S00\/K4A00\u003c\/h2\u003e\n\u003cp\u003eYokogawa's alphanumeric coding defines the specific electrical hardware and interface configurations:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAAI835:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBase model for Isolated Current Input (4 to 20 mA, 16-channel).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-S:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStandard type performance specification.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStandard type without explosion protection (General Purpose).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e0:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBasic functional specification for standard operating environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\/K4A00:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes the KS cable interface adapter, facilitating connection to the AEA4D terminal board.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp\u003eWe supply this module in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% brand new, original factory condition\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto ensure immediate system integration.\u003c\/p\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\u003eNumber of Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16-channel, isolated\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Signal Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 to 20 mA DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWithstanding Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1500 V AC (between input and system)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInterface Style\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eKS Cable Interface (\/K4A00)\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\u003eApproximately 0.18 kg (Module only)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCENTUM VP, CENTUM CS 3000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Isolation Barrier:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUnlike standard modules, the AAI835 provides a massive 1500 V AC withstanding voltage. This protection layer prevents catastrophic system failures caused by ground loops, high-voltage surges, or severe electromagnetic interference (EMI) on the field side.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRapid Maintenance via KS Interface:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe \/K4A00 option utilizes a KS cable interface rather than traditional screw terminals. This design allows technicians to hot-swap modules or perform wiring updates at a separate terminal board, significantly reducing cabinet-side labor and downtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Monitoring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e16 isolated channels in a single slot footprint optimize cabinet space. This high density reduces the total number of I\/O nodes required for large-scale refineries or chemical plants, lowering the total cost of ownership.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Signal Stability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdvanced internal filtering circuitry removes high-frequency noise from the 4-20 mA loop. This ensures the control processor receives a stable, \"clean\" signal, which allows for tighter PID tuning and more predictable process behavior.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary difference between the AAI835 and the AAI135?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AAI835 offers significantly higher isolation (1500 V AC) compared to the AAI135 (500 V AC). Use the AAI835 in environments with heavy electrical equipment where high-voltage noise or potential ground shifts occur frequently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the AAI835-S00\/K4A00 to power 2-wire transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AAI835 functions as a current sink (signal receiver). If your field instruments require loop power directly from the I\/O module, you may need to implement an external 24 V DC loop power supply or consider the AAI143 series.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the \/K4A00 adapter come pre-mounted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the \/K4A00 adapter is factory-fitted to the module. This allows you to plug in a standard KS1 or KS2 cable immediately to connect the module to your AEA4D terminal board.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module suitable for redundant configurations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely. When paired with a second AAI835 in a redundant-ready I\/O nest, the modules provide seamless failover protection. If the primary module fails, the secondary takes over without interrupting the process control signal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52467871252789,"sku":"AAI835-S00\/K4A00","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/AAI835-H53_f148b2cb-7a54-4215-a337-77ea1065020e.png?v=1774253484","url":"https:\/\/www.5gplc.com\/products\/yokogawa-aai835-s00-k4a00-centum-vp-isolated-current-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}