{"product_id":"bently-nevada-3500-50-02-00-3500-series-tachometer-module","title":"Bently Nevada 3500\/50-02-00 3500 Series Tachometer Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eConfigured specifically for integration within the 3500 machinery protection rack, the \u003cstrong\u003eBently Nevada 3500\/50-02-00\u003c\/strong\u003e processes highly precise speed and phase measurement signals to safeguard rotating machinery. By accepting up to two independent transducer signals, this \u003cstrong\u003eTachometer Module\u003c\/strong\u003e tracks rotational speed, phase angles, and acceleration criteria. The \u003cstrong\u003e3500\/50-02-00\u003c\/strong\u003e configuration features the specialized I\/O module designed for external terminations, streamlining complex cabinet cabling architectures while offering high input impedance and robust signal conditioning in demanding industrial environments.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eDual-Channel Capacity:\u003c\/strong\u003e Processes up to two independent transducer inputs simultaneously for speed or phase tracking.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eExternal Terminations Configuration:\u003c\/strong\u003e Utilizes option 02 external termination I\/O modules, enabling rapid field connection routing.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eWide Input Voltage Compatibility:\u003c\/strong\u003e Accommodates dynamic input ranges from +10.0 V down to -24.0 V with built-in internal limiting.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eHigh-Impedance Design:\u003c\/strong\u003e Standard 20 k ohm input impedance minimizes signal loading on connected proximity probes or magnetic pickups.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eZero-Speed \u0026amp; Over-Speed Monitoring:\u003c\/strong\u003e Supports critical trip log architectures and alarm configurations.\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: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eTurbomachine shaft speed and Keyphasor phase reference tracking.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eSteam, gas, and hydro-electric turbine overspeed protection systems.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eIndustrial centrifugal compressors and high-performance blower speed monitoring.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eReciprocating engine and electric motor drive-train safety integration.\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748;\"\u003e\n        \u003cth style=\"text-align: left; padding: 0.75rem; font-weight: bold; color: #1a365d;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 0.75rem; font-weight: bold; color: #1a365d;\"\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: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBently Nevada\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePart Number \/ SKU\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3500\/50-02-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3500 Machinery Protection System\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModule Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eTachometer Module\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eI\/O Module Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\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: 0.75rem; font-weight: bold;\"\u003eAgency Approval Option\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e00 = None\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInput Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2 channels (proximity probes or magnetic pickups)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInput Signal Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e+10.0 V to -24.0 V (limited internally)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInput Impedance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e20 k ohms (standard) \/ 40 k ohms (TMR) \/ 7.15 k ohms (Internal Barrier)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePower Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e5.8 watts, typical\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eUnited States\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhile the \u003cstrong\u003e3500\/50-02-00\u003c\/strong\u003e provides external termination support, users requiring internal termination blocks should verify suitability with the 3500\/50-01-XX variations. Always cross-reference the 3500 firmware revision level within the Rack Configuration Software to guarantee correct driver mapping and module register recognition prior to physical installation.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen pairing this tachometer module with magnetic pickups, be aware that voltage amplitude scales downward at lower shaft speeds. Ensure your minimum speed setpoints and auto-threshold configurations in the software are adjusted above the transducer's low-voltage noise ceiling. For High Availability configurations, implementing TMR (Triple Modular Redundant) input impedance matching (40 k ohms) prevents single-point failure propagation across standard parallel connections.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1.5rem;\"\u003eWhen routing external terminations, always deploy high-quality shielded twisted-pair (STP) cabling for all sensor inputs. Magnetic pickup lines are exceptionally sensitive to ambient EMI. Ensure the shield drain wire is terminated strictly at the designated instrument earth ground on the 3500 rack chassis and isolated at the machine junction box to eliminate parasitic ground loops.\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;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING:\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eEnsure total rack power de-energization and confirm all residual capacitive and static energy has been safely bled to earth before handling. Inserting or removing modules while the rack is powered can cause catastrophic backplane communication failures or module transceiver damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: center; margin-bottom: 0.75rem;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; margin-right: 10px; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/span\u003e\n    \u003cspan style=\"color: #2d3748;\"\u003ePower down the 3500 rack power supply modules completely.\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: center; margin-bottom: 0.75rem;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; margin-right: 10px; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/span\u003e\n    \u003cspan style=\"color: #2d3748;\"\u003eSlide the 3500\/50 main module into the designated slot on the front of the rack until it mates firmly with the backplane.\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: center; margin-bottom: 0.75rem;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; margin-right: 10px; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/span\u003e\n    \u003cspan style=\"color: #2d3748;\"\u003eInstall the External Termination I\/O module (Option 02) into the corresponding slot at the rear of the rack.\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: center; margin-bottom: 0.75rem;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; margin-right: 10px; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/span\u003e\n    \u003cspan style=\"color: #2d3748;\"\u003eTighten all chassis retaining screws securely to ground the front faceplate and ensure mechanical stability.\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: center;\"\u003e\n    \u003cspan style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; margin-right: 10px; font-weight: bold; flex-shrink: 0;\"\u003e5\u003c\/span\u003e\n    \u003cspan style=\"color: #2d3748;\"\u003eConnect external termination blocks to the rear I\/O card and perform electrical isolation tests before repowering the system.\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668298527083,"sku":"3500\/50-02-00","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/350050-02-00-qdsdcddjf2b_efaa5f42-90d7-41db-a508-3213bc950afc.jpg?v=1765520485","url":"https:\/\/www.plcprotech.com\/tr\/products\/bently-nevada-3500-50-02-00-3500-series-tachometer-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}