{"product_id":"bently-nevada-3500-25-01-02-cn-3500-series-enhanced-keyphasor-module","title":"Bently Nevada 3500\/25-01-02-CN 3500 Series Enhanced Keyphasor Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eProcessing phase-reference and speed signals for machinery diagnostic systems, the \u003cstrong\u003eBently Nevada 3500\/25-01-02-CN\u003c\/strong\u003e serves as a high-precision, half-height module within the 3500 monitoring platform. This system component conditions pulses from proximity probes or magnetic pickups to determine rotational speed and once-per-turn phase angles, delivering critical reference data directly to the backplane for transient and steady-state machinery analysis. Configured as a single half-height card supporting two channels and paired with an external termination I\/O module, this unit integrates seamlessly with local regional standards via its country-specific CN approval path.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eProvides high-accuracy once-per-turn phase reference and rotational speed measurements.\u003c\/li\u003e\n  \u003cli\u003eSupports both magnetic pickups and proximity probe transducers.\u003c\/li\u003e\n  \u003cli\u003eSingle half-height card configuration optimization for rack slot conservation.\u003c\/li\u003e\n  \u003cli\u003eExternal termination interface for versatile, remote wiring management.\u003c\/li\u003e\n  \u003cli\u003eIntegrates seamlessly with the 3500 Transient Data Manager (TDM) and key monitoring cards.\u003c\/li\u003e\n  \u003cli\u003eRobust noise immunity and signal conditioning circuit design.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eSteam turbine and gas turbine rotor speed and phase-angle tracking.\u003c\/li\u003e\n  \u003cli\u003eTurbocompressor and expander startup\/shutdown transient profiling.\u003c\/li\u003e\n  \u003cli\u003eHydroelectric generator shaft alignment and orbit visualization systems.\u003c\/li\u003e\n  \u003cli\u003eBalance-of-plant rotating machinery health monitoring and vector analysis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBently Nevada\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eModel Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3500 Series Monitoring System\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePart Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3500\/25-01-02-CN\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eChannel Configuration\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e01 (Single half-height 2-channel Keyphasor card)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eI\/O Module Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e02 (I\/O Module with External Terminations)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eAgency Approvals\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCN (Country-specific regional certificates)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eInput Impedance\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e21.8 kOhms (minimum)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSignal Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e+0.8 V to -21.0 V (non-isolated input)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMaximum Rotational Speed\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e120,000 rpm (sensor and pulse dependant)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eUnited States (U.S.A.)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1.5 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe Enhanced Keyphasor Module replaces older legacy keyphasor units within standard 3500 racks. It is critical to note that while this enhanced card is backwards compatible with standard backplanes, half-height card pairings must match. You cannot pair an older non-enhanced module in the same vertical slot allocation as an enhanced module.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen utilizing option 02 (External Terminations), ensure that the cable length between the external termination block and the rear I\/O module does not exceed specified noise margins. High-frequency ambient EMF from neighboring variable speed drives (VSD) can inject signal noise, resulting in false once-per-turn double-triggering or missed pulses.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDuring rack commissioning, configure the threshold voltage and hysteresis parameters within the 3500 Rack Configuration Software to match the specific transducer bias. For a standard 8mm Proximitor, target a trigger threshold that falls precisely in the middle of the physical notch or projection voltage swing to prevent signal dropout during thermal shaft expansion.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Prior to module insertion or removal, verify that all power sources to the rack are de-energized or follow verified hot-swap live-insertion procedures if permitted by site safety protocols. Always wear a grounded ESD wrist strap connected to the chassis to prevent catastrophic electrostatic damage to the internal microprocessors.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eInspect the module edge connectors and rear I\/O pins for physical damage or misalignment prior to insertion.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eSlide the half-height module firmly into the dedicated rack slot using the card guides until the connector fully seats into the backplane.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eTighten the front panel retaining screws to a torque of 1.1 N-m (9.7 in-lb) to secure the unit and establish proper chassis ground pathing.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 3px;\"\u003eRoute the external termination cabling from the rear I\/O to the field junction box, ensuring signal lines are properly shielded and grounded at the rack.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668309111147,"sku":"3500\/25-01-02-CN","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/3500-25-01-02-CN-5qbfggllz2f_f76b13d7-5909-4a36-a8ae-dd182e6b0a0e.jpg?v=1765520784","url":"https:\/\/www.plcprotech.com\/de\/products\/bently-nevada-3500-25-01-02-cn-3500-series-enhanced-keyphasor-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}