{"product_id":"bently-nevada-3500-50m-two-channel-tachometer","title":"Bently Nevada 3500\/50M Two-Channel Tachometer","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\n  The \u003cstrong style=\"color: #0066cc;\"\u003e3500\/50M-01-01\u003c\/strong\u003e is a two-channel tachometer module for speed monitoring of turbines, compressors, and rotating machinery. It accepts proximity probe or magnetic pickup signals, delivering accurate RPM measurements up to 99,999 rpm. Designed for the 3500 rack, it provides reliable speed, rotor acceleration, and zero-speed detection.\n\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Configuration\u003c\/h2\u003e\n\u003ch3\u003eI\/O Module Type: 01 – Internal Terminations\u003c\/h3\u003e\n\u003cp\u003e\n  The \u003cstrong\u003e01\u003c\/strong\u003e suffix designates an I\/O module with internal terminations. This eliminates external termination blocks, simplifying installation and reducing wiring complexity.\n\u003c\/p\u003e\n\n\u003ch3\u003eAgency Approval: 01 – cNRTLus (Class I, Div 2)\u003c\/h3\u003e\n\u003cp\u003e\n  The \u003cstrong\u003e01\u003c\/strong\u003e approval certifies the module for Class I, Division 2 hazardous areas. Complies with cNRTLus standards for use in industrial environments with potentially flammable atmospheres.\n\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\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\u003eChannels\u003c\/td\u003e\n      \u003ctd\u003e2 per module\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInput Signal\u003c\/td\u003e\n      \u003ctd\u003e+10.0 V to -24.0 V (internal limiting)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInput Impedance\u003c\/td\u003e\n      \u003ctd\u003e20 kΩ (standard) \/ 40 kΩ (TMR) \/ 7.15 kΩ (Internal Barrier)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTransducer Power\u003c\/td\u003e\n      \u003ctd\u003e24 Vdc, 40 mA max per channel\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMax Input Frequency\u003c\/td\u003e\n      \u003ctd\u003e20 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMax Full Scale Range\u003c\/td\u003e\n      \u003ctd\u003e99,999 rpm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEvents per Revolution\u003c\/td\u003e\n      \u003ctd\u003e1 to 255 (Rotor Accel\/Zero Speed) \/ 0.0039 to 255 (others)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMin Frequency (Proximity)\u003c\/td\u003e\n      \u003ctd\u003e0.0167 Hz (1 rpm @ 1 event\/rev)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMin Frequency (Magnetic)\u003c\/td\u003e\n      \u003ctd\u003e3.3 Hz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRPM Accuracy (\u0026lt;100 rpm)\u003c\/td\u003e\n      \u003ctd\u003e±0.1 rpm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRPM Accuracy (100–10,000 rpm)\u003c\/td\u003e\n      \u003ctd\u003e±1 rpm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRPM Accuracy (10,000–99,999 rpm)\u003c\/td\u003e\n      \u003ctd\u003e±0.01% of true speed\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRPM\/Min Accuracy\u003c\/td\u003e\n      \u003ctd\u003e±20 rpm\/min\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Consumption\u003c\/td\u003e\n      \u003ctd\u003e5.8 W typical\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMonitor Module (H x W x D)\u003c\/td\u003e\n      \u003ctd\u003e241.3 mm x 24.4 mm x 241.8 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMonitor Weight\u003c\/td\u003e\n      \u003ctd\u003e0.82 kg (1.8 lbs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eI\/O Module (non-barrier) (H x W x D)\u003c\/td\u003e\n      \u003ctd\u003e241.3 mm x 24.4 mm x 99.1 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eI\/O Module (non-barrier) Weight\u003c\/td\u003e\n      \u003ctd\u003e0.20 kg (0.44 lbs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eI\/O Module (internal barrier) (H x W x D)\u003c\/td\u003e\n      \u003ctd\u003e241.3 mm x 24.4 mm x 163.1 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eI\/O Module (internal barrier) Weight\u003c\/td\u003e\n      \u003ctd\u003e0.46 kg (1.01 lbs)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRack Space\u003c\/td\u003e\n      \u003ctd\u003e1 full-height front slot (monitor) + 1 rear slot (I\/O)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation \u0026amp; Maintenance\u003c\/h2\u003e\n\u003ch3\u003eWiring \u0026amp; Termination\u003c\/h3\u003e\n\u003cp\u003e\n  Internal termination eliminates external blocks. Connect proximity probes or magnetic pickups to I\/O inputs. Use shielded twisted-pair cables for signal integrity. For hazardous area installations, the internal barrier option provides intrinsic safety.\n\u003c\/p\u003e\n\n\u003ch3\u003eConfiguration\u003c\/h3\u003e\n\u003cp\u003e\n  Configure speed setpoints, channel types, and events per revolution via 3500 Configuration Software (v4.20+). Requires 3500\/22M Firmware Rev 1.70+ and 3500\/50M Firmware Rev 5.30+. Not compatible with 3500\/20.\n\u003c\/p\u003e\n\n\u003ch3\u003eSystem Requirements\u003c\/h3\u003e\n\u003cp\u003e\n  To add this module to an existing 3500 system: 3500\/22M Firmware Rev 1.70, 3500\/01 Software v4.20+, 3500\/02 v2.52+, 3500\/03 v1.52+, and 3500\/50M Firmware Rev 5.30+.\n\u003c\/p\u003e\n\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003ch3\u003eHigh-Speed Precision\u003c\/h3\u003e\n\u003cp\u003e\n  Measures up to 99,999 rpm with accuracy of ±0.01% above 10,000 rpm. Supports input frequencies up to 20 kHz and 255 events per revolution for detailed speed analysis.\n\u003c\/p\u003e\n\n\u003ch3\u003eVersatile Transducer Support\u003c\/h3\u003e\n\u003cp\u003e\n  Accepts both proximity probes and magnetic pickups. Three input impedance options (20kΩ, 40kΩ, 7.15kΩ) accommodate standard, TMR, and internal barrier configurations.\n\u003c\/p\u003e\n\n\u003ch3\u003eHazardous Area Ready\u003c\/h3\u003e\n\u003cp\u003e\n  cNRTLus approval (Class I, Div 2) enables installation in potentially flammable environments. Internal barrier I\/O modules provide additional safety for intrinsic safety applications.\n\u003c\/p\u003e\n\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1:\u003c\/strong\u003e What is the maximum RPM this module can measure?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA1:\u003c\/strong\u003e 99,999 rpm full scale with accuracy of ±0.01% of true shaft speed above 10,000 rpm. Maximum input frequency is 20 kHz.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2:\u003c\/strong\u003e What firmware versions are required for this module?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA2:\u003c\/strong\u003e Requires 3500\/22M Firmware Rev 1.70+, 3500\/50M Firmware Rev 5.30+, 3500\/01 Software v4.20+, 3500\/02 v2.52+, and 3500\/03 v1.52+. Not compatible with 3500\/20.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3:\u003c\/strong\u003e What is the difference between internal terminations and external terminations?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA3:\u003c\/strong\u003e The 01 option provides internal terminations – all connections are made directly on the I\/O module. This eliminates external termination blocks, reducing installation time and potential wiring errors.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52693704835204,"sku":"3500\/50M-01-01","price":362.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/3500_50M-01-01.jpg?v=1787484229","url":"https:\/\/www.etowonauto.com\/fr\/products\/bently-nevada-3500-50m-two-channel-tachometer","provider":"Etowon Auto","version":"1.0","type":"link"}