{"product_id":"yokogawa-aai841-h00-analog-i-o-module-8-channel-hart","title":"YOKOGAWA AAI841-H00 Analog I\/O Module 8-Channel HART","description":"\u003ch2\u003eYOKOGAWA AAI841-H00 Analog I\/O Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYOKOGAWA AAI841-H00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAAI841\u003c\/strong\u003e Analog I\/O Module, operates as a dedicated hardware component for simultaneous 8-channel analog input and 8-channel analog output execution within CENTUM VP process control platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAAI841\u003c\/strong\u003e: Base model for 8-channel analog input\/8-channel analog output (4-20 mA).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-H\u003c\/strong\u003e: Indicates support for digital communication via HART protocol.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e00\u003c\/strong\u003e: Standard base version.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK4A00\u003c\/strong\u003e: Option code representing the inclusion of the ATK4A-00 KS cable interface adapter for system cabling.\u003c\/li\u003e\n\u003c\/ul\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\u003eAAI841-H00\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\u003e0.3 kg (Module), 2.0 kg (Total shipping weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard I\/O module footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C 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), 500 mA (24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Channels\u003c\/td\u003e\n\u003ctd\u003e8 Inputs \/ 8 Outputs (non-isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Load\u003c\/td\u003e\n\u003ctd\u003e0 to 750 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eInput: +\/-16 uA, Output: +\/-48 uA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Update Period\u003c\/td\u003e\n\u003ctd\u003e10 ms\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; Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe AAI841 utilizes the 4-20 mA HART loop protocol to manage bidirectional communication with smart field instruments. The module executes precise loop control by maintaining a consistent 40 ms output step response and 100 ms input step response. Given the non-isolated circuit design, the module manages common-mode voltage fluctuations through high-impedance input stages (min 500 kOhm power-off resistance). Furthermore, the internal logic provides active transmitter power supply regulation, maintaining between 14.8 VDC and 26.4 VDC, which allows for selectable 2-wire or 4-wire transmitter compatibility on a per-channel basis.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Does the AAI841-H00 support online module replacement (hot-swap)?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports hot-swapping when configured within a dual-redundant pair to maintain process continuity.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module handle circuit-open conditions?\u003c\/p\u003e\n\u003cp\u003eA: The AAI841 includes integrated diagnostic circuitry that triggers an open-circuit fault flag when output current drops below 0.65 mA.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Because the AAI841 channels are non-isolated, ensure that all signal commons are bonded to a common instrument ground bar to prevent circulating currents that could induce measurement offsets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding:\u003c\/strong\u003e Use shielded twisted-pair cabling for all analog signal runs. Terminate cable shields strictly at the field side or the cabinet entry point, but avoid ground loops by maintaining a single-point connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Maintain a minimum clearance of 50 mm above and below the module to facilitate vertical airflow. In high-density cabinets, utilize forced ventilation to keep ambient temperatures below the 70 deg C limit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Interface:\u003c\/strong\u003e When using the ATK4A-00 adapter, ensure all MIL connector latches are fully engaged and locked to prevent intermittent signal loss due to vibration or thermal expansion.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43624380465242,"sku":"AAI841-H00","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/489._6c091627-b67d-4da1-aade-528499cebead.jpg?v=1783585401","url":"https:\/\/www.spareoil.com\/es\/products\/yokogawa-aai841-h00-analog-i-o-module-8-channel-hart","provider":"SpareOil Automation","version":"1.0","type":"link"}