{"product_id":"bently-nevada-190501-12-99-02-velomitor-ct-velocity-transducer","title":"Bently Nevada 190501-12-99-02 Velomitor CT Velocity Transducer","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nEngineered specifically for low-frequency vibration monitoring on cooling tower fans and slow-speed machinery, the Bently Nevada 190501-12-99-02 Velomitor CT utilizes an internal solid-state accelerometer and integration circuitry to provide a direct velocity output. This specialized sensor is designed to detect early-stage mechanical anomalies in harsh, high-humidity environments, facilitating proactive maintenance before operational failures occur.\n\u003c\/p\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nBy integrating the \u003cstrong\u003evelocity transduction\u003c\/strong\u003e mechanism directly within the rugged housing, this unit eliminates the signal degradation issues commonly associated with external charge amplifiers. The configuration features a \u003cstrong\u003e32-foot integrated cable\u003c\/strong\u003e and a robust \u003cstrong\u003eM8x1 plate stud mount\u003c\/strong\u003e, providing a ready-to-install solution optimized for wet, demanding industrial structures.\n\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Integration:\u003c\/strong\u003e Combines solid-state accelerometer technology with an onboard integrator to produce a low-noise velocity output directly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Cabling (Option -99):\u003c\/strong\u003e Features a factory-terminated, 32-foot (approx. 9.7 meters) integrated cable to minimize field termination failure points.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecialized Mounting (Option -12):\u003c\/strong\u003e Supplied with a heavy-duty Plate Stud 3\/8-in 24 to M8x1 for rigid mechanical coupling to the machine casing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHazardous Area Certified (Option -02):\u003c\/strong\u003e Designed to meet multiple international explosion-proof and hazardous area standards for safe deployment in volatile zones.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion Resistant:\u003c\/strong\u003e Built to withstand continuous high-humidity, corrosive atmospheres typical of cooling tower wet decks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eCooling tower fan gearboxes and driver shafts.\u003c\/li\u003e\n  \u003cli\u003eInduced draft and forced draft ventilation fans.\u003c\/li\u003e\n  \u003cli\u003eLow-speed industrial pumps and compressors.\u003c\/li\u003e\n  \u003cli\u003eWater and wastewater treatment rotating machinery.\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; font-size: 0.9rem;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; width: 35%;\"\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;\"\u003eModel Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e190501 Velomitor CT (Cooling Tower)\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;\"\u003eFull Part Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e190501-12-99-02\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;\"\u003eMounting Option (-12)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePlate Stud 3\/8-in 24 to M8x1\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;\"\u003eConnection Option (-99)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eIntegrated 32-foot (9.7m) cable\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 (-02)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMultiple approvals (ATEX, IECEx, Division 2 \/ Zone 2 compliant)\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;\"\u003e2.0 kg (4.4 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\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; font-size: 0.9rem;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0; text-align: left;\"\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eWire Color\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eSignal Assignment\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eDescription\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; color: #c53030;\"\u003eWhite\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSIG \/ PWR (+)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePositive dynamic signal and loop power input\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; color: #2d3748;\"\u003eBlack\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eRET (-)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSignal return \/ common ground reference\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; color: #4a5568;\"\u003eShield\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSHIELD\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eDrain wire connected to shield; terminate at monitor chassis ground\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #1a365d; font-size: 1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe Velomitor CT (190501) features a lower frequency filter profile optimized for low-velocity cooling tower machinery compared to the standard Velomitor (330500). Do not substitute a standard 330500 sensor on a cooling tower fan unless you reconfigure the monitor's low-frequency corner limits in the 3500 rack configuration software, as doing so may cause false alarms or miss critical low-frequency blade-pass energy.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; font-size: 1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nWhile the integrated 32-foot cable (Option -99) provides a seamless seal against moisture ingress at the sensor head, the free end of the cable is vulnerable. Always route this cable through liquid-tight conduit up to a localized junction box. Ensure the localized junction box uses a breather drain to prevent condensation from wicking down the cable sheath and corrupting the high-impedance signal.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; font-size: 1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nAlways ensure the shield drain wire is isolated and cut back at the transducer end. Ground the shield exclusively at the monitoring system's terminal base (e.g., the 3500\/42M monitor input card). Grounding the shield at both ends introduces a ground loop that will inject 50\/60 Hz line noise into your dynamic vibration plot, distorting diagnostic spectrum analysis.\n\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; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e De-energize and lock out all power sources driving the cooling tower fan motor before entering the plenum. Confirm that the fan blade assembly has completely ceased rotation and is physically locked to prevent windmilling before attempting installation.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; min-width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.9rem;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      Prepare the mounting surface on the gearbox casing. It must be machined flat to a surface finish of 0.8 micrometers (32 microinches) minimum to ensure complete mechanical coupling.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; min-width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.9rem;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      Apply a light, uniform coating of silicone grease or acoustic coupling fluid to the mating surface of the plate stud before threading.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; min-width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.9rem;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      Thread the plate stud into the casing and torque the transducer body to the recommended OEM specification (typically 4.5 to 6.8 Nm) using a calibrated torque wrench. Do not use pipe wrenches or slip-joint pliers on the hex flats.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; min-width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.9rem;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      Secure the integrated cable using non-conductive, UV-stabilized cable ties. Ensure there is a small loop of slack near the sensor housing to decouple mechanical stress caused by structural movement.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668296888683,"sku":"190501-12-99-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/190501-12-99-02-x3y4qmunm4u_108522ef-d940-45f0-a2b8-c660c603e2cf.jpg?v=1765520423","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-190501-12-99-02-velomitor-ct-velocity-transducer","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}