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The Velomitor CT Velocity Transducer is a low-frequency version of the standard Velomitor Piezo-velocity Sensor. Its design is specifically intended to measure casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies that operate at or above 90 rpm (with 100 to 300 rpm being typical). 

The Velomitor CT Transducer is capable of measuring vibration amplitudes at these frequencies, as well as the vibration frequencies generated by the fan motor and speed reducer.

In addition, be careful when installing the accelerometer transducer on the bearing housing or machine casing. Improper installation may decrease the transducer's amplitude and frequency response and/or generate false signals that do not represent actual vibration. Refer to the appropriate instruction manuals and Application Notes for proper installation guidelines. 

Upon request, Bently Nevada provides engineering services that can assist in identifying the appropriate machine housing measurements and offer installation assistance if needed.

Frequently Asked Questions

Q1: What is the Bently Nevada 190501-20-00-04?

A1: It is a Velomitor CT velocity transducer designed to measure vibration velocity in rotating machinery for condition monitoring and protection systems.

Q2: What material is used for the case?

A2: The 190501-20-00-04 housing is made of 316L stainless steel, providing excellent corrosion resistance in harsh industrial environments.

Q3: What is the 190501-20-00-04 operating temperature range?

A3: The transducer operates within a temperature range of −40°C to +85°C (−40°F to +185°F).

Q4: What is the 190501-20-00-04 frequency range?

A4: It typically measures vibration within a frequency range of 1.5 Hz to 1 kHz (90 to 60,000 cpm).

Q5: What type of connector does it use?

A5: It features a 2-pin MIL-C-5015 connector located at the top for secure and reliable connections.

Product Applications

Electric power industry: Vibration monitoring for bearing housings, shells or structures of large rotating machinery such as generators, steam turbines, and hydro turbines.

Oil and gas: Used for critical vibration monitoring of equipment like compressors, pumps, and fans in oil drilling and refining processes.

Chemical and petrochemical: For structural vibration detection of high-risk equipment such as centrifuges, reaction vessels, and pumps.

Metallurgical industry: Applied to high-speed grinding machines, rolling mills, etc., to ensure the stability of bearings and structures.

Other industries: Used for daily condition monitoring and fault diagnosis of key equipment such as pumps, blowers, and compressors.