{"product_id":"bently-nevada-3500-25-02-01-cn-3500-series-enhanced-keyphasor-module","title":"Bently Nevada 3500\/25-02-01-CN 3500 Series Enhanced Keyphasor Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eProviding critical phase reference and speed tracking for machinery diagnostics, the \u003cstrong\u003eBently Nevada 3500\/25-02-01-CN\u003c\/strong\u003e is an \u003cstrong\u003eEnhanced Keyphasor Module\u003c\/strong\u003e engineered for integration within the 3500 Series machinery protection system. This module processes input signals from proximity probes and magnetic pick-ups, converting them into digital phase and timing pulses. The \u003cstrong\u003e-02-01-CN\u003c\/strong\u003e configuration designates a system containing \u003cstrong\u003etwo half-height 2-channel Keyphasor cards\u003c\/strong\u003e (enabling up to 4 channels of operation), an \u003cstrong\u003eI\/O module with Internal Terminations\u003c\/strong\u003e, and \u003cstrong\u003eChina-specific agency approvals\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Channel Processing:\u003c\/strong\u003e Houses two half-height cards supporting a total of 4 independent phase reference input channels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Terminations:\u003c\/strong\u003e Simplifies back-of-rack wiring by enabling direct terminal connections without external termination panels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Diagnostics:\u003c\/strong\u003e Captures once-per-turn phase and speed signals to drive vector, waveform, and spectrum analysis in turbine-generators and compressors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Transducer Compatibility:\u003c\/strong\u003e Direct integration with passive magnetic pickups, proximity transducers, and active speed sensors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed Signal Bus Integration:\u003c\/strong\u003e Shares real-time phase data across the 3500 backplane for synchronized dynamic monitoring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSteam and Gas Turbine Diagnostics:\u003c\/strong\u003e Real-time phase-angle measurements for precision rotor balancing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCentrifugal and Reciprocating Compressors:\u003c\/strong\u003e Precise shaft rotational speed and slip tracking.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy Rotating Machinery:\u003c\/strong\u003e Structural resonance and critical speed detection during startup and shutdown sequences.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Generation:\u003c\/strong\u003e Generator phase synchronization reference validation.\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; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eSpecification\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 Code\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3500\/25-02-01-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;\"\u003eModule Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eEnhanced Keyphasor Module\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCard Count \u0026amp; Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTwo half-height cards (Configured for up to 4 Channels)\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 Option\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eInternal Terminations (-01)\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 Approval\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCN (Country Specific - China regional approvals)\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;\"\u003eStandard 10 kohm for proximity sensor inputs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e-30 degC to +65 degC (-22 degF to +150 degF)\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\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\u003eConnections \u0026amp; Interfaces\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; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eTerminal Block Pin \/ Connection\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eFunction \/ Circuit Assignment\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;\"\u003eCh 1 \/ Ch 2 Sig\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003ePrimary Keyphasor signal inputs (Proximity or Magnetic Pickup)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCh 3 \/ Ch 4 Sig\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSecondary Keyphasor signal inputs (Enabled via second half-height 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;\"\u003eCOM\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSignal common \/ Shield ground references\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePWR Out\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTransducer power supply distribution output (-24 VDC typical)\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 3500\/25 Enhanced Keyphasor Module replaces older legacy keyphasor units within the 3500 system. Note that firmware version 3.0 or higher inside the 3500\/22 Transient Data Interface (TDI) or 3500\/20 Rack Interface Module is required to unlock full multi-channel compatibility and diagnostics for the 4-channel configuration.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen utilizing internal terminations (-01 option), maintain clean cable management within the cabinet. Signal crosstalk can occur if high-voltage AC lines run parallel to the low-voltage Keyphasor signal runs. Ensure your field wiring is routed in isolated instrument trays to prevent double-triggering faults on the phase signal.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eSet proper hysteresis and threshold values in the 3500 Rack Configuration Software before startup. Magnetic pickups generate zero-crossing AC waveforms and require trigger levels set close to 0 volts, whereas proximity sensors tracking keyways require negative DC voltage thresholds (typically set to -5 to -8 VDC) corresponding to the probe gap voltage drop.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e De-energize the 3500 rack power supplies before inserting or removing any module or backplane I\/O terminal card. Hot-swapping modules without active system backup or ignoring grounding discharge steps can cause permanent electrical damage to the backplane communication bus.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\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    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eVerify that the 3500\/25 card-guide slot assignment matches the layout configuration specified in your system project file.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\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    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eSlide the main processor module into the front of the rack until it firmly seats into the backplane connectors, then tighten the securing screws.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\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    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eInstall the I\/O module with internal terminations directly onto the back of the rack in the matching slot. Connect field sensor wiring to the screw terminal block, ensuring shielding is properly terminated to common ground.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668291318123,"sku":"3500\/25-02-01-CN","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/3500-25-02-01-CN-1cymkcqxprl_75afc25b-b41a-4643-b31c-ce259fe59dd9.jpg?v=1765520348","url":"https:\/\/www.plcprotech.com\/ru\/products\/bently-nevada-3500-25-02-01-cn-3500-series-enhanced-keyphasor-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}