{"product_id":"3500-50m-01-01-bently-nevada-tachometer-module-3500-series","title":"3500\/50M-01-01 Bently Nevada Tachometer Module - 3500 Series","description":"\u003ch3\u003eSystem Overview: Bently Nevada 3500\/50M-01-01\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #1a5276;\"\u003eBently Nevada 3500\/50M-01-01\u003c\/span\u003e\u003c\/strong\u003e serves as a high-precision \u003cstrong\u003e\u003cspan style=\"color: #1a5276;\"\u003eTachometer Module\u003c\/span\u003e\u003c\/strong\u003e within the 3500 Monitoring System. Engineered for mission-critical rotating equipment, it processes dual transducer inputs to deliver accurate rotor speed and acceleration data. This module integrates seamlessly into the 3500 rack, offering reliable performance for complex industrial speed-sensing applications.\u003c\/p\u003e\n\n\u003ch3\u003eConfiguration \u0026amp; Ordering Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #1a5276;\"\u003e3500\/50M-01-01\u003c\/span\u003e\u003c\/strong\u003e follows a modular ordering structure:\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3500\/50M:\u003c\/strong\u003e Tachometer Module Base Unit\n        \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eI\/O Type (01):\u003c\/strong\u003e Internal terminations for I\/O module.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eAgency Approval (01):\u003c\/strong\u003e cNRTLus (Class 1, Division 2 compliant).\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInput Channels:\u003c\/strong\u003e 2 Independent Transducer Inputs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInput Range:\u003c\/strong\u003e +10.0 V to -24.0 V.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRPM Accuracy:\u003c\/strong\u003e ±1 rpm (100 to 10,000 rpm).\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFrequency Range:\u003c\/strong\u003e Max 20 kHz input frequency.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTransducer Supply:\u003c\/strong\u003e 24 Vdc, 40 mA maximum per channel.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 5.8 Watts (typical).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDiagnostic \u0026amp; Operational Capability\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #1a5276;\"\u003e3500\/50M-01-01\u003c\/span\u003e\u003c\/strong\u003e provides real-time health monitoring through front-panel LED indicators: \u003cstrong\u003eOK LED\u003c\/strong\u003e for operational integrity, \u003cstrong\u003eTX\/RX LED\u003c\/strong\u003e for rack-bus communication, and \u003cstrong\u003eBypass LED\u003c\/strong\u003e for maintenance mode. It supports complex logic, including rotor acceleration and zero-speed detection, with advanced filtering to ignore noise in passive magnetic pickups.\u003c\/p\u003e\n\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eWe recommend the \u003cstrong\u003e\u003cspan style=\"color: #1a5276;\"\u003e3500\/50M\u003c\/span\u003e\u003c\/strong\u003e for applications involving high-speed turbines and large compressors where precise shaft speed is essential for safety interlocking. Its high input impedance (20 kΩ) ensures signal purity, even when sharing proximity probe outputs with other monitoring instrumentation.\u003c\/p\u003e\n\n\u003ch3\u003eLogistics \u0026amp; Quality Guarantee\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Expedited worldwide delivery via FedEx, UPS, and DHL.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Ready for shipping within 24–48 hours of order confirmation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGuarantee:\u003c\/strong\u003e Each unit includes a standard 12-month quality assurance policy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProfessional Frequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat firmware\/software compatibility must I verify before installation?\u003c\/strong\u003e\u003cbr\u003e\nEnsure your rack utilizes 3500\/22M firmware revision 1.70 or later, and that your Configuration Software is updated to version 4.20 or newer to support the 3500\/50M module functions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this module with both proximity probes and magnetic pickups?\u003c\/strong\u003e\u003cbr\u003e\nYes, the module is compatible with both. However, note that passive magnetic pickups require a minimum input frequency of 3.3 Hz for accurate signal detection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the I\/O module selection (01) impact my field wiring?\u003c\/strong\u003e\u003cbr\u003e\nChoosing option 01 provides internal terminations, simplifying the installation process by allowing direct field wire connections to the rear I\/O card, reducing the need for external terminal blocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSelection Guide: What should I consider for \"Zero Speed\" applications?\u003c\/strong\u003e\u003cbr\u003e\nWhen configuring for zero-speed detection, verify that your target provides a consistent event-per-revolution ratio between 1 and 255. Ensure the proximity probe is properly gapped for the target material.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is my module displaying a communication fault (TX\/RX LED blinking)?\u003c\/strong\u003e\u003cbr\u003e\nThis typically indicates a rack communication issue. First, verify the module is firmly seated in the backplane. Then, confirm your 3500\/22M interface module is correctly communicating with the rack-wide data bus.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45013970124982,"sku":"3500\/50M-01-01","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/3500-50M.jpg?v=1780468000","url":"https:\/\/www.plcsparehub.com\/products\/3500-50m-01-01-bently-nevada-tachometer-module-3500-series","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}