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Product Introduction
The Bently Nevada 330500-03-00 Velomitor Piezo-Velocity Sensor is a rugged, solid-state vibration sensor designed for monitoring absolute (relative to free space) bearing housing, casing, or structural vibrations. Utilizing integrated piezoelectric technology, it provides accurate velocity measurements, making it ideal for machinery condition monitoring and predictive maintenance applications.
Product Specifications
| Parameter | Details |
| Model Number | 330500-03-00 |
| Sensor Type | Piezoelectric Velocity Sensor |
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s) ±5% |
| Frequency Range | 4.5 Hz to 5 kHz ±3.0 dB or 6.0 Hz to 2.5 kHz ±0.9 dB |
| Output Signal | Voltage (proportional to velocity) |
| Power Supply | Self-powered (two-wire system) |
| Mounting Thread | 1/4 – 28 UNF |
| Connector Type | 2-pin MIL-C-5015, hermetically sealed |
| Housing Material | 316L Stainless Steel |
| Operating Temperature | -55°C to +121°C (-67°F to +250°F) |
| Diameter | 23 mm |
| Weight | 0.1 kg |
| Approvals | CSA, ATEX, IECEx |
Product Applications
The 330500-03-00 sensor is ideal for monitoring:
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Rotating machinery with rolling-element bearings
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Pumps, compressors, motors, and turbines
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Bearing housing and casing vibrations
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Structural health monitoring
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Predictive maintenance programs
Product Advantages
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Solid-State Design: Eliminates mechanical degradation and wear.
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Wide Frequency Range: Captures a broad spectrum of vibration data.
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High Sensitivity: Provides accurate velocity measurements.
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Robust Construction: 316L stainless steel housing ensures durability in harsh environments.
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Ease of Installation: Standard mounting threads and connectors simplify setup.
Recent News Headlines
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“Bently Nevada Expands Velomitor Sensor Line for Enhanced Machinery Monitoring”
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“New Developments in Piezoelectric Sensor Technology by Bently Nevada”
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“Bently Nevada’s 330500 Series Gains Industry Recognition for Reliability”
Frequently Asked Questions (FAQ)
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What is the primary function of the 330500-03-00 sensor?
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It measures absolute vibration velocity of machinery components, aiding in condition monitoring.
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Can this sensor be used in high-temperature environments?
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Yes, it operates effectively in temperatures ranging from -55°C to +121°C.
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Is the sensor suitable for outdoor installations?
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Yes, its robust stainless steel housing and sealed connector make it suitable for harsh environments.
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What type of output does the sensor provide?
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It provides a voltage output proportional to the measured vibration velocity.
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Does the sensor require external power?
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No, it is self-powered using a two-wire system.
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What are the mounting options for this sensor?
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It features a 1/4 – 28 UNF mounting thread for secure attachment.
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Is the sensor compatible with standard monitoring systems?
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Yes, it integrates seamlessly with most vibration monitoring equipment.
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What certifications does the sensor have?
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It holds CSA, ATEX, and IECEx approvals.
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Can the sensor be used for both vertical and horizontal installations?
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Yes, it can be mounted in any orientation without affecting performance.
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What is the expected lifespan of the sensor?
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With no moving parts, it offers a long operational life with minimal maintenance.
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Related Models (Same Series or Similar Type)
| Model Number | Description | Sensor Type | Key Feature |
| 330500-00-00 | Standard Velomitor Piezo-Velocity Sensor | Piezo-Velocity Sensor | General-purpose velocity monitoring |
| 330500-01-00 | Velomitor with Side Exit | Piezo-Velocity Sensor | Side exit connector for tight spaces |
| 330500-02-00 | Velomitor, Top Exit, Modified Response | Piezo-Velocity Sensor | Alternative sensitivity curve |
| 330500-05-00 | High Vibration Velomitor | Piezo-Velocity Sensor | Designed for high-amplitude machinery |
| 330525-01-01 | High Temp Velomitor Sensor | Piezo-Velocity Sensor | Rated for higher temperature environments |
| 330425-02-05 | Accelerometer with Side Connector | Accelerometer | Compact, accurate acceleration measurement |
| 330400-01-00 | Dual Output Velocity & Acceleration Sensor | Combo Sensor | Combines two measurements in one sensor |
| 991-01-70-01-01 | Electromagnetic Velocity Transducer | Velocity Transducer | With integrated cable, ready for field install |
Popular Bently Nevada Models
| Model Number | Description | Category | Application |
| 3300 XL 8mm | Proximitor Sensor for shaft vibration | Proximity Sensor | Standard proximity monitoring |
| 330130-040-00 | Extension Cable for 3300 XL Series | Cable | For use with proximity probe systems |
| 3500/22M | Transient Data Interface Module | Monitoring System Module | System communication and diagnostics |
| 3500/42M | Proximitor/Seismic Monitor | Monitoring Module | Accepts velocity & proximity sensor inputs |
| 3500/15 | Power Supply Module | System Power | Redundant power support in 3500 system |
| 3701/40 | Machinery Protection System | Condition Monitoring | Standalone vibration protection system |
| 330780-90-00 | Seismic Sensor | Velocity Sensor | Case-mounted for structural monitoring |
| 3500/25 | Keyphasor Module | Rotational Speed Monitor | For rotor phase angle and speed detection |
