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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 190501-17-00-04?

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

Q2: What certifications does the “04” agency approval include?

A2: “04” includes CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1), making it suitable for hazardous area applications.

Q3: What is the 190501-17-00-04 sensitivity of this transducer?

A3: The 190501-17-00-04 sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±10%, providing accurate vibration measurement.

Q4: What is the 190501-17-00-04 operating temperature range?

A4: The 190501-17-00-04 transducer operates within a temperature range of −40°C to +85°C (−40°F to +185°F).

Q5: What is the 190501-17-00-04 primary function of this velocity transducer?

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

Product Applications

Electric power industry: Vibration monitoring for power plant fans, water pumps, coal mills, and auxiliary equipment of steam turbines.

Petroleum and natural gas industry: Monitoring of key rotating equipment such as oil and gas transmission pipelines, pump sets, and compressors.

Chemical industry: Vibration status detection of high-risk or continuously operating equipment in chemical plants, such as centrifuges, mixers, and compressors.

Metallurgical industry: Steelmaking and rolling equipment, such as blowers and large motors.