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The Velomitor CT Velocity Transducer is a low-frequency version of our standard Velomitor Piezo-velocity Sensor. Itsdesign specifically measures casing vibration velocity oncooling tower and air-cooled heat-exchanger fanassemblies that operate at or above 90 rpm (100 to 300 rpmtypical).

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

Q : What is the primary function of the 190501 Velomitor CT?

It is a moving-coil equivalent, piezoelectric velocity sensor designed to measure casing vibration.

Q : What is the exact measurement sensitivity of this model?

It outputs 3.94 mV/mm/s (100 mV/in/s) with a calibration tolerance of ±5% at 100 Hz.

Q : What is the maximum peak velocity range it can measure before clipping?

It accurately tracks vibration levels up to a maximum peak of 127 mm/s (5.0 in/s).

Q : What is the mandatory mounting torque requirement?

It must be torqued to exactly 4.5 N·m (40 in·lb) to prevent internal element distortion.

Product Applications

Oil & Gas: Condition monitoring of air-cooled fans in oil refineries and liquefied natural gas (LNG) plants.

Chemical & Petrochemical: Monitoring of cooling equipment in highly corrosive, flammable, and explosive environments in chemical plant areas.

Power Generation: Predictive maintenance of fans and drive trains in large cooling towers and chilled water towers in power plants.

Heavy Manufacturing: Fault diagnosis of large, low-speed rotary mixing equipment and ventilation systems.