{"product_id":"bently-nevada-3500-25-149369-01-enhanced-keyphasor-module-1","title":"Bently Nevada 3500\/25 149369-01 Enhanced Keyphasor Module","description":"\u003ch2\u003eBently Nevada 3500\/25 149369-01 Enhanced Keyphasor Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 3500\/25 149369-01\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e149369-01\u003c\/strong\u003e Enhanced Keyphasor Module, operates as a dedicated hardware component for Keyphasor signal acquisition and digital pulse generation within the 3500 Machinery Protection System. The module receives signals from proximity probes or magnetic pickups and converts them into digital Keyphasor reference signals for synchronized rotor position and speed measurements.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\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\u003e3500\/25 149369-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpare Model\u003c\/td\u003e\n\u003ctd\u003e149369-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eEnhanced Keyphasor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e3500 System\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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.5 x 25.6 x 12 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-30 to +65 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\u003e95 % RH, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3.2 W typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e21.8 kOhm minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Modules\u003c\/td\u003e\n\u003ctd\u003e1 full-height rear slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Inputs\u003c\/td\u003e\n\u003ctd\u003eProximity probes, magnetic pickups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Keyphasor Signals\u003c\/td\u003e\n\u003ctd\u003eUp to 4 (standard), up to 8 (paired configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLegacy Compatibility\u003c\/td\u003e\n\u003ctd\u003eReplaces PWA 125792-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eKeyphasor Signal Processing and Rotor Dynamics\u003c\/h3\u003e\n\u003cp\u003eThe 3500\/25 Enhanced Keyphasor Module generates digital timing references used by monitor modules to establish shaft rotational position. The module detects the passage of a Keyphasor mark relative to the transducer and distributes synchronized reference signals throughout the 3500 monitoring system.\u003c\/p\u003e\n\u003cp\u003eAccurate Keyphasor timing is fundamental for rotor dynamic analysis, including phase measurements, synchronous vibration, orbit plots, polar plots, and startup or coast-down data acquisition. When proximity probes are used as the input device, proper eddy-current probe scaling and gap voltage verification, commonly near -10 VDC during commissioning, help ensure stable pulse generation and repeatable phase reference.\u003c\/p\u003e\n\u003cp\u003eFor Triple Modular Redundant (TMR) configurations, the 3500 system requires two Enhanced Keyphasor Modules operating in parallel. This arrangement provides both primary and secondary Keyphasor signals for redundant monitoring channels while maintaining synchronization across the rack.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What input devices are supported by the Enhanced Keyphasor Module?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The module accepts signals from compatible proximity probes and magnetic pickups, converting them into digital Keyphasor reference signals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the 149369-01 compatible with systems using the earlier 125792-01 module?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. The 149369-01 replaces PWA 125792-01 while maintaining backward compatibility in form, fit, and function for legacy 3500 installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How is a TMR Keyphasor configuration implemented?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The 3500 TMR architecture uses two Enhanced Keyphasor Modules operating in parallel to provide primary and secondary Keyphasor reference signals for redundant monitoring channels.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the module in the designated 3500 rack slot and connect the required full-height rear I\/O module.\u003c\/li\u003e\n\u003cli\u003eVerify correct polarity and wiring for proximity probe or magnetic pickup inputs before energizing the rack.\u003c\/li\u003e\n\u003cli\u003eRoute Keyphasor signal cables separately from high-voltage conductors to minimize electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eGround cable shields according to the 3500 installation specification to reduce electrical noise and signal cross-talk.\u003c\/li\u003e\n\u003cli\u003eConfirm stable Keyphasor pulse detection before enabling phase, orbit, or speed-related monitoring functions.\u003c\/li\u003e\n\u003cli\u003eAfter commissioning, verify synchronization between the Keyphasor module and associated monitor channels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan style=\"font-family: Arial,Helvetica,sans-serif;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44342764798051,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/149369-01-1.jpg?v=1783582192","url":"https:\/\/precisemodule.com\/products\/bently-nevada-3500-25-149369-01-enhanced-keyphasor-module-1","provider":"Precise Module Ltd.","version":"1.0","type":"link"}