{"product_id":"emerson-ovation-1c31194g03-valve-positioner-electronics-module","title":"Module électronique de positionneur de vanne Ovation Emerson 1C31194G03","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1C31194G03 (1C31194G03)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a Valve Positioner Electronics Module used within the Emerson Ovation distributed control system for electro-hydraulic valve positioning in steam turbines, boiler control systems, and critical process regulation environments. This module generates the LVDT excitation signal and processes position feedback to maintain stable valve movement during load transitions, startup procedures, and protective shutdown events. It operates as the primary signal-conditioning component in the valve positioner subsystem and interfaces directly with the 1C31197 personality module to form a closed-loop actuator control channel. In turbine control applications, consistent excitation output ensures predictable servo valve behavior and prevents oscillation or position drift that can lead to mechanical stress or unplanned downtime.\u003c\/p\u003e\n\u003cp\u003eThe G03 revision belongs to the 1C31194 electronics module family and follows the same electrical performance envelope defined for the Ovation valve positioner subsystem.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe 1C31194G03 functions as the electronics control layer responsible for generating LVDT excitation signals and processing actuator feedback signals within the Ovation valve positioning system.\u003c\/p\u003e\n\u003cp\u003eCore architecture characteristics include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eLVDT excitation signal generator\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDifferential position feedback processing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSingle actuator control interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRedundancy support within Ovation control architecture\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh dielectric isolation between field interface and controller bus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSerial communication interface for diagnostics and calibration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with all 1C31197 personality modules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module interfaces between the Ovation controller and one electro-hydraulic servo actuator in the field. It relies on the control system algorithm to manage calibration and tuning parameters for stable valve positioning.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"\"\u003eSpecification\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\u003e1C31194G03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEmerson\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eOvation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eValve Positioner Electronics Module\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.34 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e178 x 102 x 25 mm\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\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e0 to 95 percent non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eTypical 4.3 W, Maximum 6.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLVDT Excitation Output\u003c\/td\u003e\n\u003ctd\u003eDefined by system configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition Feedback Input\u003c\/td\u003e\n\u003ctd\u003eMaximum 25 V AC peak-to-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e20 kOhm differential\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eRS-485, RS-232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Rating\u003c\/td\u003e\n\u003ctd\u003e1000 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Capacity\u003c\/td\u003e\n\u003ctd\u003eOne electro-hydraulic actuator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Personality Module\u003c\/td\u003e\n\u003ctd\u003e1C31197 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese specifications are derived directly from the valve positioner subsystem definition in the Ovation engineering documentation.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs 1C31194G03 electrically different from 1C31194G01 or G02?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The core hardware architecture remains the same. The difference typically relates to internal revision or production configuration rather than excitation signal characteristics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many actuators can this module control?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOne electro-hydraulic servo valve actuator per module channel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan 1C31194G03 be used in turbine control systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. It is commonly used in steam turbine governing and feedwater valve positioning applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the most common field configuration mistake?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInstalling a mismatched personality module for the servo coil impedance, which can cause unstable valve response.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eAlways verify the installed personality module matches the servo coil impedance before system startup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain cabinet ventilation to keep internal temperature below 60 deg C during continuous turbine operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePerform calibration verification after module replacement to confirm stable valve positioning behavior.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":52695187128683,"sku":"1C31194G03","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/emerson-1c31194g03-positioner-personality-model-f2zpqmudsxs_702b39df-4b4a-44e2-9614-d700f54bf267.jpg?v=1766114497","url":"https:\/\/www.plcprotech.com\/fr\/products\/emerson-ovation-1c31194g03-valve-positioner-electronics-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}