190501-00-00-04 Bently Nevada Velomitor CT Velocity Transducer
Description
The 190501‑00‑00‑04 belongs to the Bently Nevada “Velomitor CT” series — a piezoelectric velocity transducer designed to measure casing (housing) vibration velocity on machinery.“CT” stands for “Cooling Tower” version — this
sensor is optimized for low‑frequency vibration, particularly suited for cooling towers, air‑cooled heat‑exchanger fan assemblies, and similar machinery.The transducer uses a 316L stainless‑steel case, providing robust
mechanical protection and allowing use in industrial/hazardous environments.In short: the 190501‑00‑00‑04 Velomitor CT is a heavy‑duty, low-frequency velocity sensor, ruggedized for industrial
environments, optimized for low-speed fan/heat‑exchanger/cooling‑tower equipment, and capable of delivering
clean vibration velocity signals over long cable runs.
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Frequently Asked Questions of 190501-00-00-04
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Q: What does “Velomitor CT” mean / what is this sensor meant for?
A: “Velomitor CT” is a version of Bently Nevada’s piezoelectric velocity transducers, optimized for low‑frequency vibrations typical of cooling towers, air‑cooled heat‑exchanger fans, and other slow rotating equipment. Its design ensures it can detect casing vibration velocity even at low rotational
speeds (as low as ~90 rpm).
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Q: What kind of vibrations does it measure — displacement? acceleration? velocity?
A: This sensor measures vibration velocity of the machine casing (housing/structure), not displacement or acceleration. The velocity output is
valuable for condition monitoring of mechanical balance, alignment, bearing
condition, and structural integrity.
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Q: What is the sensitivity and frequency range of this transducer?
A: Sensitivity is approximately 3.94 mV per mm/s (100 mV per in/s) ± 5%. Its frequency response covers
roughly 1.5 Hz to 1.0 kHz (or 3.0 Hz to 900 Hz for tighter ±1 dB response), enabling it to capture
low‑speed machinery vibrations down to ~90 rpm.
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Inquiry now: miya@mvme.cn
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