With more than 30.000 high-quality spare parts, they can be sold immediately. Our large inventory allows us to quickly meet customer needs, thereby reducing downtime and protecting production schedules. Our timely delivery time provides you with security and save money.
The 190501-12-00-04 is a low-frequency version of the standard Velomitor Piezo-velocity Sensor. It measures casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies that operate at or above 90 rpm (100 to 300 rpm typical). The Velomitor CT Transducer measures vibration amplitudes at these frequencies as well as the vibration frequencies generated by the fan motor and speed reducer.
3Hz Low-Speed Tracking: Measures cooling tower vibrations down to 90 rpm accurately
Severe-Environment Survival: 316L SS housing, 5000g shock limit, and ATEX certified
Dual-Frequency Diagnostics: Simultaneously monitors low-frequency fan blade movement and high-frequency gearbox faults
The 190501-12-00-04 operates as an active, constant-current piezoceramic sensor that requires a 2 to 10 mA DC power supply from an external monitor or power unit. It routes vibration data through a 2-pin MIL-C-5015 top connector, utilizing shielded twisted-pair cabling to maintain signal integrity over long distances and prevent electromagnetic interference (EMI/RFI) in high-voltage industrial plants.The hermetically sealed 316L stainless steel enclosure provides defense against high humidity, continuous water spray, and corrosive chemicals common to cooling tower cells. Structurally, the internal solid-state sensing element survives shock limits up to 5,000 g peak, preventing drift or failure under sudden mechanical impacts.
For continuous machinery protection, the 190501-12-00-04 integrates directly into Bently Nevada 3500/42M or 3500/46M vibration monitors, Orbit 60 systems, and distributed control systems (DCS). The factory calibration ensures precise impedance matching across the entire 3.0 Hz to 900 Hz frequency spectrum, enabling early detection of low-frequency unbalance, blade pass frequencies, and gear mesh faults without requiring field recalibration.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power Plants
Monitoring vibration on low-speed fan driving bearing housings of giant mechanical draft cooling towers in circulating water pump stations to prevent mechanical instability from blade fractures.
Nuclear Power Conventional Island Engineering
Conducting continuous condition monitoring on multiple low-speed large fans of ultra-large mechanical draft circulating water cooling towers in conventional islands, with an explosion-proof design meeting plant safety ratings.
Papermaking & Pulping Industry
Used for vibration velocity acquisition on cooling tower fan casings within wastewater treatment and large-capacity water-circulating systems of paper mills, withstanding long-term high-humidity environments.
Pharmaceutical Manufacturing & Biotechnology
Deployed on ventilation system casings of large HVAC and fermentation-cooling water-circulating towers in sterile plants, with a corrosion-resistant 316L stainless steel housing meeting on-site environment needs.
Air Separation & Industrial Gas Production
Monitoring fan gearboxes of closed industrial water cooling towers paired with multi-stage large compressor trains, avoiding production process downtime by tracking vibration.
Polysilicon & Semiconductor Wafer Facilities
Installed on large, slow-speed power blade drive gearboxes of ultrapure water-cooling process towers outside cleanroom facilities to ensure around-the-clock equipment integrity.
CRITICAL NOTICE: Mount the sensor strictly to a flat, clean surface with 4.5 N·m torque to prevent signal distortion. Ensure the 2-pin connector is fully sealed against moisture, and always route connections through an approved safety barrier when operating in ATEX hazardous areas.
What is the Bently Nevada 190501-12-00-04 Velocity Transducer?
It is a heavy-duty, piezo-velocity sensor designed for low-speed machinery condition monitoring. It directly measures the casing vibration velocity of rotating assets.
What equipment is the 190501-12-00-04 primarily used on?
It is specifically engineered for low-speed, industrial cooling tower fans, air-cooled heat exchangers (fin-fans), and slow-moving dampeners or agitators.
What is the minimum machine speed that the 190501-12-00-04 can monitor?
It can reliably measure low-frequency vibrations down to 3.0 Hz, which corresponds to rotating speeds as low as 90 rpm.
How should the 190501-12-00-04 transducer be properly installed?
It must be stud-mounted vertically or horizontally onto a flat, clean machined surface on the bearing housing using the provided 3/8-24 to 1/2-20 stud adapter, torqued to 4.5 N·m (40 in·lb).
What type of cable connection does the 190501-12-00-04 use?
It requires a standard 2-pin MIL-C-5015 shielded twisted pair cable assembly (such as the Bently Nevada 106765 or 133202 cables).
Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
Videos
News
Applications
