{"product_id":"yokogawa-aam21-s2-centum-cs-3000-analog-input-module","title":"YOKOGAWA AAM21-S2 CENTUM CS 3000 Analog Input Module","description":"\u003ch2\u003eYOKOGAWA AAM21-S2 Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-precision signal acquisition in CENTUM CS 3000 and ProSafe-RS platforms, the \u003cstrong\u003eYOKOGAWA AAM21-S2\u003c\/strong\u003e (\u003cstrong\u003eAAM21\u003c\/strong\u003e Analog Input Module) provides direct physical\/electrical execution of 8-channel analog input monitoring.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAAM21\u003c\/strong\u003e: Base model identifier for 8-channel analog current\/voltage input functionality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-S2\u003c\/strong\u003e: Style\/Revision designation indicating hardware iteration and compatibility standards within the DCS control platform.\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\u003eAAM21-S2\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e130 × 42.9 × 146.8 mm\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\u003eMax 1.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e8 Analog\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Range\u003c\/td\u003e\n\u003ctd\u003e4-20 mA \/ 1-5 V \/ mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e500 V AC\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 Attributes\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAAM21-S2\u003c\/strong\u003e integrates a high-speed analog-to-digital conversion stage capable of scanning all 8 input channels within a 1-second interval. The module maintains signal integrity through channel-to-channel and channel-to-ground isolation, which mitigates common-mode noise and ground-loop currents in distributed control environments. It supports 4-20 mA HART loop protocol handshaking, ensuring compatibility with intelligent field transmitters. To maintain accuracy over varying environmental conditions, the module circuitry utilizes cold junction compensation (CJC) for temperature-based inputs, ensuring that terminal temperature gradients do not introduce measurement deviations into the 16-bit conversion stream.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the AAM21-S2 support redundant configurations?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module is engineered to support redundant pairings within DCS control stations, allowing for seamless transition if the primary module encounters a diagnostic fault.\u003c\/p\u003e\n\u003cp\u003eQ: How is the input signal impedance configured?\u003c\/p\u003e\n\u003cp\u003eA: The module features an input impedance of 250 Ohms for current-based signals and 1 MOhm for voltage-based inputs, which is determined by the field wiring terminal connections and module configuration settings.\u003c\/p\u003e\n\u003cp\u003eQ: Is this module capable of RTD sensing?\u003c\/p\u003e\n\u003cp\u003eA: While the base architecture supports varied analog inputs, confirm the specific channel configuration in the engineering software matches the sensor type (Pt100, JPt100, Cu50, or Ni100) to prevent measurement inaccuracy.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Secure the module to the DCS rack or cabinet backplane. Ensure the ground terminal is connected to the cabinet common ground to establish a stable reference for the internal isolation barriers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring\u003c\/strong\u003e: Utilize shielded twisted-pair cables for all analog signals. Terminate the shield at the control cabinet side to provide an effective path to ground for induced electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation\u003c\/strong\u003e: Maintain physical separation between input signal wiring and high-current AC power lines to prevent inductive coupling and ensure compliance with electromagnetic compatibility standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management\u003c\/strong\u003e: Although the unit is rated for operation up to 70 deg C, maintain adequate clearance around the module housing to facilitate heat dissipation, particularly in high-density rack configurations.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43648946831450,"sku":"AAM21-S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/514_68d8034b-8ebf-4a46-9928-f7d5619492d1.jpg?v=1783909625","url":"https:\/\/www.spareoil.com\/products\/yokogawa-aam21-s2-centum-cs-3000-analog-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}