{"product_id":"bently-nevada-3300-50-02-01-00-00-tachometer-monitor","title":"Bently Nevada 3300\/50-02-01-00-00 Tachometer Monitor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 3300\/50-02-01-00-00\u003c\/strong\u003e is a Zero Speed Tachometer Monitor designed for critical machinery rotative speed and condition monitoring within the 3300 System platform. Operating as a single-channel monitoring module, it accepts dual transducer inputs and utilizes internal voting logic to prevent false trip indications caused by a single sensor failure. The \u003cstrong\u003e3300\/50-02-01-00-00\u003c\/strong\u003e variant is configured specifically as a Zero Speed Tachometer (Type Option 02) with Epoxy Relay outputs (Alert Relay Option 01), CSA\/NRTL\/C agency approvals (Option 00 for standard applications without specialized certifications), and no internal safety barriers (Option 00).\u003c\/p\u003e\n\u003cp\u003eThe front panel features dual 5-digit LCD displays that output shaft rotative speed in RPM alongside probe gap voltage, providing operator visibility into operating parameters and transducer health. It includes BNC buffered transducer outputs on the front panel for diagnostic equipment hookup, along with user-programmable proportional analog outputs (current or voltage) on the rear terminal strip for plant recording systems.\u003c\/p\u003e\n\u003cp\u003eWhile providing continuous monitoring, Alert status, and proportional analog feedback for data logging, the \u003cstrong\u003e3300\/50-02-01-00-00\u003c\/strong\u003e tachometer is designed strictly for machinery condition monitoring and annunciation. It is not engineered for independent use as an emergency overspeed protection or speed control system.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Transducer Input Voting:\u003c\/strong\u003e Accepts inputs from two independent transducers with internal voting logic to maintain system integrity and minimize false alarms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Speed Detection:\u003c\/strong\u003e Configured specifically for zero speed monitoring, functioning reliably at operating thresholds below 100 RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Front Panel Display:\u003c\/strong\u003e Features an 84 mm x 38 mm LCD displaying 5-digit RPM values, transducer gap voltage, and operational status indicators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffered Diagnostic Outputs:\u003c\/strong\u003e Provides front-panel coaxial BNC connectors for direct, short-circuit-protected signal access during field troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable Proportional Outputs:\u003c\/strong\u003e Delivers configurable rear terminal recorder outputs (+4 to +20 mA, 0 to -10 Vdc, or +1 to +5 Vdc) proportional to shaft rotative speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEpoxy Alarm Relays:\u003c\/strong\u003e Includes dual epoxy-sealed relay drives for field-adjustable Alert 1 and Alert 2 annunciation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurbomachinery Rotative Speed Monitoring:\u003c\/strong\u003e Continuous speed and zero speed state measurement for steam, gas, and industrial turbines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotating Equipment Machinery Protection:\u003c\/strong\u003e Shaft speed tracking on high-power compressors, industrial gearboxes, and large motor drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Speed Turning Gear Integration:\u003c\/strong\u003e Zero speed status verification for engaging turning gear systems on power generation units.\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\u003eOption Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSelected Option Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3300\/50\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTachometer Monitor Base Model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA: 02\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZero Speed Tachometer Type Option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eB: 01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEpoxy Relay Option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eC: 00\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAgency Approval Option (Not Required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eD: 00\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSafety Barrier 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\u003ch4\u003eGeneral\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003e3300 System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003e3300\/50 Tachometer Monitor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExact Part Number\u003c\/td\u003e\n\u003ctd\u003e3300\/50-02-01-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.5 Watts (Nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePanel Display Size\u003c\/td\u003e\n\u003ctd\u003e84 mm x 38 mm (0.33 in x 0.15 in) LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eSignal \u0026amp; Transducer Inputs\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Transducers\u003c\/td\u003e\n\u003ctd\u003e3300, 7200, or 3000 Series Proximitor Probes; Magnetic Pickups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Capacity\u003c\/td\u003e\n\u003ctd\u003eAccepts 2 transducer signals (Supports mixed input types)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManual Threshold Range\u003c\/td\u003e\n\u003ctd\u003eUser-selectable from 0 to -18 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto Threshold Range\u003c\/td\u003e\n\u003ctd\u003e10 Hz (600 rpm for 1 event\/rev) to 10 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHysteresis Range\u003c\/td\u003e\n\u003ctd\u003eUser-selectable from 0.2 to 2.0 Volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvents per Revolution Option\u003c\/td\u003e\n\u003ctd\u003eNumerator: 1 to 255 \/ Denominator: 1 to 255 (Num\/Den \u0026gt;= 0.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Duty Cycle\u003c\/td\u003e\n\u003ctd\u003e1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003ePerformance Ranges \u0026amp; Accuracy\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Rotative Speed Range\u003c\/td\u003e\n\u003ctd\u003e1 to 99,999 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Acceleration Range\u003c\/td\u003e\n\u003ctd\u003e-9,999 to 9,999 RPM\/MIN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZero Speed Operating Threshold\u003c\/td\u003e\n\u003ctd\u003eBelow 100 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Display Accuracy\u003c\/td\u003e\n\u003ctd\u003eWithin +1 RPM (at +25 degC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcceleration Display Accuracy\u003c\/td\u003e\n\u003ctd\u003eWithin 20 RPM\/MIN (at +25 degC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Resolution\u003c\/td\u003e\n\u003ctd\u003e+-1 RPM \/ +-1 RPM\/MIN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eOutputs \u0026amp; Alarms\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecorder Output Options\u003c\/td\u003e\n\u003ctd\u003eUser-programmable: +4 to +20 mA, 0 to -10 Vdc, or +1 to +5 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance (Voltage)\u003c\/td\u003e\n\u003ctd\u003e100 Ohm (Minimum load resistance 10 kOhm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Compliance (Current)\u003c\/td\u003e\n\u003ctd\u003e0 to +12 Vdc across load (Load resistance 0 to 600 Ohm at +4 to +20 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffered Transducer Outputs\u003c\/td\u003e\n\u003ctd\u003e1 coaxial BNC connector per transducer on front panel (Short-circuit protected, 100 Ohm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransducer Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e-24 Vdc or -18 Vdc (User-programmable in power supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Setpoints\u003c\/td\u003e\n\u003ctd\u003eDigitally adjustable from 0 to 100% full-scale; nonvolatile memory storage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Configurations\u003c\/td\u003e\n\u003ctd\u003eDual Epoxy Relays installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Time Delays\u003c\/td\u003e\n\u003ctd\u003eTachometer\/Acceleration: 1 sec or 3 valid triggers; Zero Speed (\u0026lt;100 RPM): 3 valid triggers (1 min max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eEnvironmental \u0026amp; Mechanical\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 degC to +65 degC (+32 degF to +150 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degC to +85 degC (-40 degF to +185 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003eUp to 95%, noncondensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpace Requirements\u003c\/td\u003e\n\u003ctd\u003e1 rack position (Any position except 1 and 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.0 kg (2.2 lbs)\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\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransducer A Input Terminals\u003c\/td\u003e\n\u003ctd\u003eTerminal connections for Channel A Proximitor probe or magnetic pickup signal wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransducer B Input Terminals\u003c\/td\u003e\n\u003ctd\u003eTerminal connections for Channel B Proximitor probe or magnetic pickup signal wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Recorder Output Terminals\u003c\/td\u003e\n\u003ctd\u003eRear-panel terminal outputs for proportional voltage or current logging signals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Alarm Relay Terminals\u003c\/td\u003e\n\u003ctd\u003eNormally Open (NO), Normally Closed (NC), and Common (ARM) relay contact terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZero Speed Enable Terminals\u003c\/td\u003e\n\u003ctd\u003eTerminal connection for external user-supplied contact closure to enable Zero Speed Alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuffered Transducers (A \u0026amp; B)\u003c\/td\u003e\n\u003ctd\u003eFront panel coaxial BNC jacks for raw signal monitoring with test equipment\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\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Installation Inspection:\u003c\/strong\u003e Verify that the model number matches 3300\/50-02-01-00-00 and check the circuit board jumpers for correct input configuration before inserting the module into the rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRack Slot Placement:\u003c\/strong\u003e Install the monitor into any available slot in the 3300 system rack except slots 1 and 2, which are reserved exclusively for the Power Supply and System Monitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Connections:\u003c\/strong\u003e Connect transducer field wiring using 3-conductor shielded cable. Connect the cable shields to a single earth point ground to prevent ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Speed Enable Wiring:\u003c\/strong\u003e If utilizing the zero speed alarm feature, wire an external contact closure to the designated Zero Speed Enable terminals on the rear terminal strip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Verification:\u003c\/strong\u003e Ensure the rack power supply is configured for the correct transducer supply voltage (-24 Vdc or -18 Vdc) based on the proximity sensors installed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eConfiguration \/ Commissioning \/ Replacement\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eJumper Configuration:\u003c\/strong\u003e Set onboard plug-in jumpers for input type (Proximitor or Magnetic Pickup), recorder output mode (+4 to +20 mA, 0 to -10 Vdc, or +1 to +5 Vdc), and alarm logic (latching or nonlatching) prior to commissioning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreshold Setting:\u003c\/strong\u003e Set transducer thresholds using manual voltage settings (0 to -18 Vdc) or auto-threshold mode depending on operational speed requirements. Note that option 02 (Zero Speed) is shipped configured for manual threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm Setpoint Adjustment:\u003c\/strong\u003e Adjust digitally stored Alert 1 and Alert 2 setpoints using the tamper-proof switches on the monitor circuit board and up\/down switches on the System Monitor front panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Considerations:\u003c\/strong\u003e Before replacing an existing module, record the physical jumper settings on the old PWAs to ensure identical operating parameters on the replacement unit.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":53756695904619,"sku":"3300\/50-02-01-00-00","price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/3300-50-02-01-00-00_001_1200x1200_eb665ad1-7a7c-4948-ba1b-47ab048c9427.jpg?v=1787488314","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-3300-50-02-01-00-00-tachometer-monitor","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}