Description

Product Overview

The Bently Nevada 330500-01-04 functions as a high-precision Velomitor piezo-velocity sensor designed for monitoring absolute casing vibration. Engineers utilize this transducer to measure vibration levels on bearing housings, structural components, and machinery casings. By employing a solid-state piezoelectric design with integrated electronics, this sensor delivers consistent signal output without the mechanical degradation associated with traditional moving-coil velocity transducers.

Technical Specifications

• Model Number: 330500-01-04
• Sensor Type: Piezo-velocity (Velomitor)
• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%
• Frequency Response: 4.5 Hz to 5 kHz
• Mounting Thread: 1/2-20 UNF
• Dynamic Output Impedance: <2400 Ω
• Grounding: Case-isolated
• Operating Temperature: -24°C to +121°C
• Certification: CSA and ATEX hazardous area approved
• Weight: 0.08 kg

Functional Characteristics

Bently Nevada engineers designed this unit for versatility, allowing installation in horizontal, vertical, or angled orientations to accommodate various machine geometries. Because the sensor architecture contains no moving parts, the unit maintains high performance even under intense vibration loads and extended operational lifecycles. Furthermore, the case-isolated construction mitigates common ground loop issues, which significantly enhances signal integrity when the sensor connects to monitoring instrumentation. Consequently, plant operators obtain reliable, high-fidelity data suitable for critical machinery protection and predictive maintenance diagnostic programs.

Industry Applications

Maintenance professionals deploy the 330500-01-04 in diverse industrial sectors, including power generation, petrochemical processing, and heavy manufacturing. The sensor meets rigorous international safety standards, which ensures compliance when operators install equipment in explosive or hazardous atmospheres. By providing accurate velocity data, the device assists in the early detection of machinery faults, such as imbalances or structural resonances. Furthermore, its compact, robust design ensures that it withstands the harsh environmental conditions prevalent in industrial settings, thereby reducing unplanned downtime and improving overall asset reliability.