Product Description:

The Bently Nevada 190501-08-99-00 primarily targets industrial applications involving low-speed cooling tower fans and air-cooled heat exchanger assemblies.The Velomitor CT Velocity Transducer is a low-frequency version of our standard Velomitor Piezo-velocity Sensor. Its design specifically 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 can measure vibration amplitudes at these frequencies as well as the vibration frequencies generated by the fan motor and speed reducer.

Frequently Asked Questions (FAQ)

Q:What are the electrical specifications and output characteristics of sensor 190501-08-99-00?
A:This sensor operates on 10–24 VDC, with a maximum current consumption of 5 mA and a sensitivity of 4 mV/(mm/s) pk or 100 mV/(in/s) pk. Its output is a dynamic voltage signal, and the maximum continuous cable length is 91.44 meters (300 feet). For longer distances, connectors or adapters must be used.
Q:What are the installation characteristics of sensor 190501-08-99-00?
A:This model (BB=99) features a quick-disconnect installation, allowing removal without rotating the sensor body while maintaining the cable connection. This design facilitates field maintenance and replacement. Accessories include a quick-disconnect base, lock nut, and O-ring seal. During installation, the sensor must be secured to a bearing housing or machine housing. Improper installation can lead to decreased amplitude and frequency response, and even spurious signals.

Q:What are the application scenarios for the Velomitor CT sensor model 190501-08-99-00?
A:This model is specifically designed for measuring the vibration velocity of the casing of cooling tower and air-cooled heat exchanger fan components, suitable for equipment operating at speeds not less than 90 rpm (typically 100 to 300 rpm). It can measure the amplitude of vibrations in these low-frequency ranges, while also capturing high-frequency vibration components generated by the fan motor and reducer, helping to monitor common mechanical faults such as imbalance and misalignment.

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