{"product_id":"emerson-2840a21g01-analog-output-card","title":"Emerson 2840A21G01 Analog Output Card","description":"\u003cp\u003eThe \u003cstrong\u003eEmerson 2840A21G01\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e2840A21G01\u003c\/strong\u003e Analog Output Card, operates as a dedicated hardware component for 4-channel analog output processing and precision actuator control within Emerson Ovation DCS architectures.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBase Part Number\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eGroup\/Suffix\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003ePrimary Function\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2840A21\u003c\/td\u003e\n\u003ctd\u003eG01\u003c\/td\u003e\n\u003ctd\u003eOutput Analog QAO\u003c\/td\u003e\n\u003ctd\u003e4-Channel Analog Output Field Drive Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003e2840A21G01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEmerson \/ Westinghouse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Output Card (QAO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eOvation DCS \/ Q-Line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Density\u003c\/td\u003e\n\u003ctd\u003e4 Independent Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Range\u003c\/td\u003e\n\u003ctd\u003e4-20 mA \/ 0-10 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.81 lbs (0.37 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Ovation Rack Card Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3.8 W at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA Loop Processing \u0026amp; Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eEngineered for accurate field signal generation, the module incorporates dedicated digital-to-analog converters (DAC) on each output path to convert controller bus registers into continuous 4-20 mA HART loop protocol driving currents. High-density channel-to-channel isolation prevents field ground potential differences and inductive noise from degrading signal accuracy or causing common-mode interference back to the main processing rack.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 2840A21G01 module be removed while the Ovation rack is energized?\u003c\/p\u003e\n\u003cp\u003eA: No, power to the rack chassis slot and external field analog loop supplies must be disconnected prior to module extraction to avoid signal corruption and edge connector erosion.\u003c\/p\u003e\n\u003cp\u003eQ: How are individual channel circuit faults detected on the 2840A21G01?\u003c\/p\u003e\n\u003cp\u003eA: Integrated diagnostic circuitry monitors loop current continuity and open-circuit conditions, reporting field line disruptions directly to the controller error log.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower off the host Ovation rack and isolate external field transmitter\/actuator loop power supplies prior to installation.\u003c\/li\u003e\n\u003cli\u003ePut on an anti-static wrist strap connected to enclosure ground before removing the printed circuit board from its anti-static bag.\u003c\/li\u003e\n\u003cli\u003eSlide the board smoothly along the slot card guides until the rear connectors fully seat into the rack backplane.\u003c\/li\u003e\n\u003cli\u003eTighten top and bottom faceplate screws to establish chassis frame earth ground and prevent looseness from vibration.\u003c\/li\u003e\n\u003cli\u003eTerminate 4-20 mA output connections using twisted, shielded pairs, grounding the cable shield at the cabinet ground bar only.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":66735195717747,"sku":"2840A21G01","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/2840A21G01_Cocoai_72d3296f-b8fd-4e58-a223-96e364bf4bda.jpg?v=1790662535","url":"https:\/\/www.dcssupplier.com\/products\/emerson-2840a21g01-analog-output-card","provider":"DcsSupplier Limited","version":"1.0","type":"link"}