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The Velomitor CT Velocity Transducer is a low-frequency version of the standard Velomitor Piezo-velocity Sensor. It is specifically designed to measure casing vibration velocity on cooling tower and air-cooled heat exchanger fan assemblies that operate at or above 90 rpm (typically 100 to 300 rpm). 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, it is important to install the accelerometer transducer on the bearing housing or machine casing. Improper installation may reduce the transducer’s amplitude and frequency response, or generate false signals that do not accurately represent actual vibration. Refer to the appropriate instruction manuals and Application Notes for proper installation guidelines.

Upon request, Bently Nevada provides engineering services to identify the appropriate machine housing measurements and offer installation assistance if needed.

Frequently Asked Questions

Q1: What is the Bently Nevada 190501-06-99-00?

A1: It is a velocity transducer (Velomitor® type) used for measuring vibration velocity in rotating machinery for condition monitoring and predictive maintenance.

Q2: What mounting hardware does it use?

A2: It uses mounting hardware option “06,” which is a stud adapter from 3/8-24 to 1/4-28 thread.

Q3: What does the “99” connection option mean?

A3: “99” indicates the unit is supplied with an integrated 32-foot cable for extended installation reach.

Q4: What is the 190501-06-99-00 dynamic output impedance?

A4: The 190501-06-99-00 typical dynamic output impedance is less than 400 Ω, ensuring stable signal transmission.

Q5: What is the 190501-06-99-00 operating temperature range?

A5: It operates within −40°C to +85°C (−40°F to +185°F), suitable for harsh industrial environments.

Product Applications

Oil and gas: Used for measuring the vibration of the shells of pumps, compressors, and turbines.

Power industry: Monitoring the bearing boxes of power generation units, cooling tower fans, and water turbines.

Chemical and petrochemical: Monitoring the mechanical integrity of rotating equipment such as centrifuges and mixers.

Metallurgy and papermaking: Applied for continuous monitoring of large fans, motors, and grinding equipment.

Water treatment: Used to monitor the operating status of large water pumps.