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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 190501-07-99-00?

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 “07,” which is a plate stud 3/8-24 to 3/8-24 thread configuration.

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

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

Q4: What is the 190501-07-99-00 sensitivity of this transducer?

A4: The 190501-07-99-00 sensitivity is 3.94 mV/mm/s (100 mV/in/s) with a tolerance of ±5%, ensuring accurate vibration measurement.

Q5: What is the 190501-07-99-00 main function of this velocity transducer?

A5: It converts mechanical vibration velocity into an electrical signal proportional to velocity, enabling effective machinery monitoring and fault detection.

Product Applications

Electric power industry: Vibration measurement of bearing housings and shells for key equipment such as fans, pumps, steam turbines, and generators in power plants.

Petroleum and chemical industry: Vibration monitoring of machine shells for equipment such as compressors, pumps, and reaction vessels in petroleum refining and natural gas transportation.

Metallurgical industry: Fault diagnosis and predictive maintenance for high-load rotating equipment such as rolling mills, large blowers, and motors in steel plants.