Bently Nevada 330500-02-00 Velomitor Piezo-velocity Sensor

Product Overview

The Bently Nevada 330500-02-00 belongs to the specialized Velomitor series, designed to capture absolute casing vibration in rotating machinery. Unlike traditional moving-coil velocity transducers, this sensor utilizes piezoelectric technology combined with internal integration electronics. This solid-state architecture converts acceleration into a velocity signal directly within the sensor housing. By removing internal moving parts, the device eliminates the mechanical wear and friction typically associated with older sensor designs, which results in a more stable and maintenance-free vibration monitoring solution.

Core Functions and Capabilities

• Omnidirectional InstallationBecause the sensor lacks a mechanical spring-mass system, engineers can mount the 330500-02-00 at any orientation. Whether installed vertically, horizontally, or at an inverted angle, the transducer maintains its specified accuracy and performance without requiring recalibration or specialized mounting hardware.
• Advanced Signal ProcessingThe integrated electronics process the high-frequency raw data into a clean velocity output. This capability allows the sensor to monitor a broad range of machine faults, including unbalance, misalignment, and structural looseness, providing maintenance teams with actionable data for predictive maintenance programs.
• Enhanced ReliabilityThe hermetically sealed 316L stainless steel housing protects the internal circuitry from harsh industrial pollutants, moisture, and corrosive vapors. Consequently, the sensor performs reliably in extreme environments found in power plants, refineries, and chemical processing facilities.
• System CompatibilityThe 330500-02-00 interfaces seamlessly with Bently Nevada 3500 and 2300 monitoring systems. It provides a standard 2-wire connection that simplifies field wiring while maintaining high signal-to-noise ratios over long cable distances.

Technical Specifications

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%
• Frequency Response: 4.5 Hz to 5.0 kHz (±3 dB)
• Amplitude Range: 127 mm/s (5.0 in/s) peak
• Operating Temperature: -51°C to +121°C (-60°F to +250°F)
• Housing Material: 316L Stainless Steel
• Connector Type: 2-pin Mil-C-5015

Primary Applications

Maintenance professionals deploy the Bently Nevada 330500-02-00 across various critical assets, including:

• Centrifugal Compressors: Tracking casing vibration to prevent impeller damage.
• Industrial Turbines: Monitoring structural integrity during startup and steady-state operation.
• Large Pumps: Detecting cavitation and bearing degradation in water and oil transport.
• Cooling Tower Fans: Ensuring reliable performance in high-humidity zones.