{"product_id":"9905-970-woodward-rev-k-rtd-temperature-input-card","title":"9905-970 Woodward Rev K RTD Temperature Input Card","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eWoodward 9905-970\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Revision K) functions as a specialized distributed temperature acquisition node within the LinkNet I\/O family. This module interfaces directly with six independent 3-wire\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$100\\Omega$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003ePlatinum RTDs, converting analog resistance signals into precise digital data for turbine and industrial engine control systems. It communicates via the Woodward proprietary LinkNet serial bus, allowing seamless integration with MicroNet and Atlas control platforms. By offloading signal conditioning to the network edge, the 9905-970 reduces wiring complexity and enhances system modularity in mission-critical thermal monitoring applications.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis unit is 100% Brand New, original Woodward factory stock.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 9905-970 Rev K incorporates advanced linearization logic to ensure sub-degree measurement accuracy across its full operating range.\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\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWoodward\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e9905-970\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eHardware Revision\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRev K (Optimized Signal Stability)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6 Independent Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSensor Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3-Wire \u003cspan class=\"math-inline\"\u003e$100\\Omega$\u003c\/span\u003e Platinum RTD (Alpha = 0.00385)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e18–32 VDC (24 VDC Nominal)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eProprietary LinkNet Serial Bus\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e–40°C to +70°C (–40°F to +158°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLED indicators for Power, Status, and Network\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.7 cm \u003cspan class=\"math-inline\"\u003e$\\times$\u003c\/span\u003e 2.5 cm \u003cspan class=\"math-inline\"\u003e$\\times$\u003c\/span\u003e 20.3 cm\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\u003e540g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Noise Immunity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Revision K hardware specifically addresses electromagnetic interference (EMI) common in power generation environments. It maintains stable readings even when installed near high-voltage equipment or variable frequency drives.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized 3-Wire Lead Compensation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module automatically compensates for lead wire resistance. This ensures that the distance between the RTD sensor and the 9905-970 module does not degrade temperature measurement accuracy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDistributed Architecture Benefits:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBy utilizing the LinkNet serial bus, engineers can mount this module closer to the engine or turbine. This significantly reduces the cost and weight of expensive shielded multi-core cabling back to the central control room.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtreme Environment Durability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe ruggedized housing and components support an expansive operating temperature range (–40°C to +70°C). This allows for reliable performance in unconditioned enclosures or harsh outdoor industrial sites.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDeterministic Data Transmission:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUnlike standard Ethernet protocols that may suffer from collisions, the LinkNet protocol ensures consistent, time-stamped data delivery for high-speed control loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the \"Rev K\" designation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRevision K represents Woodward's enhanced hardware design, which provides superior signal stability and better component longevity compared to earlier revisions (like Rev E or G). It is backward compatible with systems using older 9905-970 versions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support 2-wire or 4-wire RTDs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 9905-970 is specifically optimized for 3-wire\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$100\\Omega$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003ePlatinum RTDs. While 2-wire sensors can be connected by jumping the terminals, 3-wire configurations are required to utilize the module's lead-wire compensation circuitry for maximum accuracy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do the onboard LEDs assist in troubleshooting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module features dedicated LEDs that provide immediate visual feedback. The \"Network\" LED confirms active communication with the LinkNet master, while the \"Status\" LED alerts technicians to internal hardware faults or sensor out-of-range conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs calibration required upon installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWoodward factory-calibrates each 9905-970 module. Because it uses digital linearization and high-precision reference resistors, it generally requires no field calibration during initial commissioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":42870870769754,"sku":"9905-970","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/159..jpg?v=1772507123","url":"https:\/\/www.spareoil.com\/products\/9905-970-woodward-rev-k-rtd-temperature-input-card","provider":"SpareOil Automation","version":"1.0","type":"link"}