{"product_id":"bently-nevada-3500-50-01-00-3500-50m-tachometer-module","title":"Bently Nevada 3500\/50-01-00 3500\/50M Tachometer Module","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e3500\/50-01-00\u003c\/strong\u003e functions as a highly accurate dual-channel speed monitoring and processing component designed for integration within the Bently Nevada 3500 Series Machinery Protection System rack architecture. This high-performance tachometer processor receives dynamic input signals from industrial proximity probes or passive magnetic pickups to compute essential rotational diagnostics. It continuously tracks critical parameters such as shaft rotative speed, rotor acceleration rates, and directional rotation vectors. The \u003cstrong\u003e3500\/50M\u003c\/strong\u003e processor then compares these real-time physical variables against user-programmed alarm configurations to prompt immediate plant alert logic when monitored limits are crossed.\u003c\/p\u003e\n\u003cp\u003eEngineered with specialized firmware, the \u003cstrong\u003e3500\/50-01-00\u003c\/strong\u003e module type can be configured to supply conditioned Keyphasor signals directly to the 3500 backplane, eliminating the spatial requirement for a dedicated standalone Keyphasor module inside the micro-processor rack. For secondary logging and data visualization, each processing channel provides isolated +4 to +20 mA analog recorder proportional voltage outputs alongside continuous short-circuit protected buffered transducer connections via front panel coaxial interfaces. This specific configuration incorporates an I\/O module with internal terminations and contains no hazardous area approval options, delivering a dependable non-barrier interface solution for standard machinery machinery rooms.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual-channel speed monitoring module accepting direct inputs from standard proximity sensors and magnetic pickups.\u003c\/li\u003e\n\u003cli\u003eProvides onboard speed monitoring, setpoint alarming, speed band limits, and zero-speed notification metrics.\u003c\/li\u003e\n\u003cli\u003eConfigurable internal backplane routing for providing conditioned Keyphasor signals to adjacent protection cards.\u003c\/li\u003e\n\u003cli\u003eIntegrated peak hold features capturing highest forward speed, reverse velocity, and cumulative reverse rotation events.\u003c\/li\u003e\n\u003cli\u003eShort-circuit and electrostatic discharge (ESD) protected buffered transducer coaxial front-panel connections.\u003c\/li\u003e\n\u003cli\u003eProportional +4 to +20 mA current loops for external chart recording, telemetry, and distributed management networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-speed industrial centrifugal air compressors and process gas compressor balancing monitoring networks.\u003c\/li\u003e\n\u003cli\u003eRotor acceleration analysis and phase reference logging on steam, gas, and hydro power generation turbines.\u003c\/li\u003e\n\u003cli\u003eMulti-channel reverse rotation indication and zero-speed safety validation across fluid-filmed bearing industrial machinery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption Breakdown and System Descriptions\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3500\/50-AA-BB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500\/50M Tachometer Module Assembly \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA: 01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eI\/O Module with Internal Terminations \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eB: 00\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHazardous Area Approval Option: None \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter Classification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003ePrecise Engineering Values\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBently Nevada (Baker Hughes) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500\/50-01-00 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Variant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500\/50M Tachometer Module \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Signal Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+10.0 V to -24.0 V \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard Input Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 kOhm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.8 Watts \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Input Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 kHz \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Full Scale Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e99,999 rpm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRPM Accuracy (Under 100 rpm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.1 rpm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRPM Accuracy (100 to 10,000 rpm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/- 1 rpm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRPM Accuracy (Over 10,000 rpm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.01% of true shaft speed \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRotor Acceleration Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+\/- 20 rpm\/min \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecorder Current Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+4 to +20 mA \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecorder Load Resistance Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 600 Ohm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuffered Output Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e550 Ohm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransducer Power Supply Limit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 Vdc, 40 mA maximum per channel \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm 1 Delay Adjustments\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 to 60 seconds (1 second intervals) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm 2 Delay Adjustments\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 to 60 seconds (0.1 second intervals) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Board Dimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Board Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.82 kg (1.8 lb) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Module Dimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Module Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.20 kg (0.44 lb) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRack Space Requirement (Main)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 full-height front rack slot \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRack Space Requirement (I\/O)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 full-height rear rack slot \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInterface Component\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Layout and Function Assignment\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Panel Coaxial Port 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChannel 1 buffered transducer voltage raw waveform diagnostic output \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Panel Coaxial Port 2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChannel 2 buffered transducer voltage raw waveform diagnostic output \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInternal Rear I\/O Blocks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDedicated terminal compression screws for transducer power, signals, shields, and recorder lines \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRack Mounting Slot Rules:\u003c\/strong\u003e Insert the main tachometer processing board into any standard full-height front slot of the 3500 chassis and line up the internal termination rear I\/O card directly behind it in the corresponding full-height rear slot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTermination Cable Layout:\u003c\/strong\u003e Ensure all input cables from proximity or magnetic pickups are stripped to recommended lengths before locking down screw terminations. Maintain structural isolation between power-carrying conduits and signal loops to limit high-frequency electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware and Software Compatibility Checks:\u003c\/strong\u003e Before introducing this module to an operating infrastructure, verify the rack's 3500\/22M module firmware is upgraded to revision 1.70 or greater, and ensure the 3500\/01 configuration utility runs version 4.20 or newer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrostatic Grounding Measures:\u003c\/strong\u003e Personnel must wear a certified conductive grounding wrist strap attached to the chassis grounding terminal point when handling electronic circuit cards or moving jumpers to prevent physical component breakdown.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668302131563,"sku":"3500\/50-01-00","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/3500_50-01-00_3.jpg?v=1781955078","url":"https:\/\/www.plcprotech.com\/de\/products\/bently-nevada-3500-50-01-00-3500-50m-tachometer-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}