{"product_id":"5464-643-woodward-micronet-rtd-input-module","title":"5464-643 Woodward MicroNet RTD Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eWoodward 5464-643\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-density RTD (Resistance Temperature Detector) Input Module specifically engineered for the MicroNet and MicroNet TMR control platforms. This module interfaces 8 independent RTD channels with the control CPU, providing precise temperature telemetry for turbine bearings, windings, and exhaust gases. By utilizing high-resolution analog-to-digital conversion, the 5464-643 ensures that the control system receives accurate thermal data, which is critical for protecting high-value rotating assets from over-temperature conditions.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThis module supports standard industrial 100-ohm platinum RTDs and maintains signal integrity across long cable runs.\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\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5464-643\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 RTD Inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100-ohm Platinum (DIN or American curve)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eExcitation Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 mA (approximate)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eA\/D Resolution\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16-Bit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e500 Vrms (Channel-to-Bus)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUpdate Rate\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 ms (All 8 channels)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100% Brand New and Original\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\u003cp\u003eThe 5464-643 RTD module addresses specific thermal monitoring challenges in power generation and mechanical drive applications:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElimination of Lead-Wire Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module utilizes a 3-wire compensation circuit for each channel. This configuration automatically cancels out the resistance of the lead wires, ensuring that the temperature reading remains accurate even when sensors reside in remote locations across the plant.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Noise Rejection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWoodward integrates hardware-based filtering to suppress 50\/60 Hz power line interference. This prevents \"signal jitter\" in the temperature data, which often causes nuisance alarms in electrically noisy turbine halls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReal-Time Sensor Diagnostics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module continuously monitors for open-circuit or short-circuit conditions on the field side. It immediately flags a hardware fault to the CPU if a wire breaks, allowing the control logic to switch to a redundant sensor or initiate a safe shutdown.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGalvanic Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e500 Vrms isolation protects the sensitive MicroNet backplane from field-side voltage surges. This prevents a localized electrical fault at a bearing sensor from damaging the central processing units or other I\/O modules in the rack.\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\u003eDoes the 5464-643 support 2-wire or 4-wire RTDs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 5464-643 primarily optimizes for 3-wire RTD configurations to balance cost and accuracy. While you can wire a 2-wire sensor to the module, lead-wire compensation will not function, potentially introducing errors. For 4-wire sensors, you simply leave the fourth wire unconnected and treat it as a 3-wire setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mix different RTD types on the same module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module expects 100-ohm platinum sensors. You must ensure all 8 sensors match the hardware scaling of the 5464-643. Mixing different materials (like Nickel or Copper RTDs) will result in incorrect temperature calculations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the 100% Brand New status?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRTD modules contain precision reference resistors and analog-to-digital converters that drift as components age or experience thermal stress. A 100% Brand New 5464-643 guarantees factory-calibrated accuracy and ensures the internal opto-isolators provide maximum voltage protection for your MicroNet system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require external calibration?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 5464-643 features self-calibrating circuitry that maintains accuracy over time. However, Woodward recommends verifying the loop integrity during annual outages using a high-precision RTD simulator at the field terminals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":53423494201528,"sku":"5464-643","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/5464-643_3.jpg?v=1777542676","url":"https:\/\/www.globalpetroparts.com\/products\/5464-643-woodward-micronet-rtd-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}