The Bently Nevada 330500-03-00 is a piezo-velocity Velomitor sensor with a 3/8-24 UNF thread. It provides high-accuracy casing vibration measurements for critical and general-purpose industrial machinery.
The Bently Nevada 330500-03-00 functions as a specialized piezo-velocity transducer designed to measure absolute casing vibration on rotating machinery. Unlike standard accelerometers, this Velomitor sensor incorporates internal electronics that integrate the raw acceleration signal into a velocity output. By providing a direct velocity measurement, the 330500-03-00 enables the 3500 Monitoring System to track mechanical health more effectively, particularly for detecting faults like structural resonance or bearing housing instability.
Engineers designed the 330500 series with a solid-state piezo-electric sensing element that lacks moving parts, which eliminates the wear and tear associated with traditional moving-coil velocity transducers. This specific configuration features a 3/8-24 UNF mounting thread and a standard 2-pin MIL-C-5015 connector. Furthermore, the 330500-03-00 maintains a wide frequency response range, ensuring that it captures both the fundamental rotational frequencies and higher-frequency mechanical harmonics with high fidelity.
This vibration sensor actively supports predictive maintenance strategies by delivering a clean signal that is proportional to the severity of mechanical stress. Consequently, operators can monitor vibration levels on machine casings where internal shaft probes cannot be installed. By detecting increased velocity levels, the 330500-03-00 helps identify developing issues such as rotor imbalance, pump cavitation, or piping strain before they cause significant structural damage.
Primary industrial applications include:
To ensure survival in harsh industrial atmospheres, Bently Nevada utilizes a 316L stainless steel housing that is hermetically sealed to prevent the ingress of moisture and process fluids. The 330500-03-00 effectively rejects electromagnetic interference (EMI) through its shielded internal design, ensuring signal purity even when mounted near high-voltage motors. Additionally, the rugged MIL-spec connector interface provides a secure, vibration-resistant connection for field cabling, ensuring long-term reliability in high-vibration environments.
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