The Bently Nevada  190501-01-00-00  Velomitor CT Velocity Transducer is a low-frequency version of our standard Velomitor Piezo-velocity Sensor.  Its design specifically measures casing vibration velocity on cooling tower and air-cooled heat-exchanger fan assemblies that operate at or above 90 rpm (100 to 300 rpm typical). 

The Bently Nevada 190501-01-00-00 Velocity Transducer is designed to measure absolute vibration velocity in rotating equipment, providing critical data for predictive maintenance and condition monitoring of machinery. 

The190501-01-00-00  Velomitor CT Transducer can measure vibration amplitudes at these frequencies as well as the vibration frequencies generated by the fan motor and speed reducer.

In addition, be careful to install the accelerometer transducer on the bearing housing or machine casing. Improper installation may decrease the transducer amplitude and frequency response and/or generate false signals that do not represent actual vibration.

Parameters are specified from +20°C to +30°C(+68°F to +86°F) and 100 Hz unless otherwise indicated.

190501-01-00-00 Sensitivity： 3.94 mV/mm/s (100 mV/in/s)±5%.

Frequency Response：3.0 Hz to 900 Hz(180 to 54,000 cpm) ±1.0 dB

1.5 Hz to 1.0 kHz(90 to 60,000 cpm) ±3.0 dB

Temperature Sensitivity：-8% to +5% typical over the operating temperature range.

Velocity Range：63.5 mm/s pk (2.5 in/s pk) 

components in excess of 10g pk above 1 kHz can significantly reduce this range.

190501-01-00-00 Transverse Response：Less than 5% of the axial

sensitivity.

Amplitude Linearity：±2% to 63.5 mm/s pk (2.5 in/s pk)

Mounted Resonant Frequency：9 kHz, minimum (stud mounted, except quick disconnect)

Dynamic Output Impedance：<400 Ω typical

Broadband 0.229 mm/s (0.009 in/s) pk. 

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