High-Performance Vibration Sensor for Industrial Asset Protection
The Bently Nevada 330500-03-00 Accelerometer is a rugged industrial vibration sensor engineered for continuous monitoring of critical rotating equipment. Although part of the 330500 Velomitor Series, this device is based on an advanced piezoelectric accelerometer with integrated electronics, providing a direct velocity output that is ideal for machinery condition monitoring. Its solid-state construction eliminates the mechanical wear associated with conventional moving-coil velocity sensors, ensuring exceptional long-term stability and dependable performance.
The 330500-03-00 configuration is designed for standard industrial installations where reliable vibration measurement is essential for predictive maintenance and machinery protection. Its compact stainless-steel housing, robust electrical connection, and maintenance-free design make it suitable for monitoring motors, pumps, compressors, turbines, fans, and gearboxes operating in demanding environments.
Whether integrated into a new monitoring system or replacing an existing vibration transducer, the 330500-03-00 delivers accurate vibration data that helps maintenance teams detect developing mechanical faults before they result in costly downtime.
Product Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330500-03-00 |
| Product Type | Accelerometer (Velomitor Piezoelectric Velocity Sensor) |
| Series | 330500 Velomitor Series |
| Sensor Technology | Piezoelectric Accelerometer with Integrated Electronics |
| Output Signal | Velocity |
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s) ±5% |
| Velocity Measurement Range | Up to 1270 mm/s (50 in/s) Peak |
| Frequency Response | 4.5 Hz to 5 kHz (±3 dB) |
| Broadband Accuracy | 6 Hz to 2.5 kHz (±0.9 dB) |
| Resonant Frequency | Greater than 12 kHz |
| Output Bias Voltage | -12 ±3 VDC |
| Connector Type | 2-Pin MIL-C-5015 Hermetically Sealed Connector |
| Housing Material | 316L Stainless Steel |
| Mounting Configuration | 1/4-28 UNF Mounting Thread |
| Maximum Cable Length | Up to 305 m (1000 ft) |
| Operating Temperature | -55°C to +121°C |
| Environmental Protection | Industrial Sealed Construction |
| Dimensions | 25.3 mm Diameter × 63.2 mm Height |
| Weight | Approximately 142 g (0.142 kg) |
Typical Applications
The 330500-03-00 is developed for continuous vibration monitoring of rotating machinery where dependable velocity measurements are critical to equipment reliability.
Typical applications include:
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Electric motors
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Steam turbines
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Gas turbines
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Industrial compressors
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Centrifugal pumps
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Gearboxes
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Cooling tower fans
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Blowers
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Process pumps
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Mining machinery
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Paper and pulp equipment
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Petrochemical processing plants
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Power generation facilities
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Water treatment systems
Its integrated piezoelectric sensing technology provides stable, high-quality vibration data for detecting imbalance, shaft misalignment, looseness, bearing wear, resonance, and other machinery faults before they escalate into major failures.
Product Advantages
The 330500-03-00 is designed to deliver reliable performance while supporting modern predictive maintenance strategies.
Key benefits include:
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Solid-state piezoelectric sensing technology with no moving components
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Direct velocity output for simplified vibration analysis
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Excellent frequency response for rotating machinery diagnostics
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Rugged 316L stainless-steel housing for harsh industrial environments
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Compact design allows installation in limited spaces
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Hermetically sealed connector enhances operational reliability
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Long cable capability supports remote monitoring applications
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Minimal maintenance requirements throughout its service life
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Fully compatible with Bently Nevada machinery protection systems
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Helps improve equipment availability while reducing maintenance costs and unplanned shutdowns
Technical FAQs
1. What is the primary purpose of the 330500-03-00?
It measures absolute casing vibration and provides a velocity output for machinery condition monitoring and predictive maintenance.
2. Is the 330500-03-00 a traditional moving-coil velocity sensor?
No. It uses a solid-state piezoelectric accelerometer with integrated electronics to generate a direct velocity output.
3. What machines commonly use this sensor?
It is widely installed on motors, pumps, compressors, turbines, fans, blowers, and gearboxes equipped with rolling-element bearings.
4. What is the sensor sensitivity?
The nominal sensitivity is 3.94 mV/mm/s (100 mV/in/s) with a tolerance of ±5%.
5. What operating temperature range is supported?
The sensor is rated for continuous operation from -55°C to +121°C.
6. Can it be mounted in different orientations?
Yes. Its solid-state construction allows installation in vertical, horizontal, or inclined positions without affecting normal performance.
7. What connector does the sensor use?
The unit is equipped with a rugged 2-pin MIL-C-5015 hermetically sealed connector for industrial applications.
8. What are the dimensions and weight?
The sensor measures 25.3 mm in diameter × 63.2 mm in height and weighs approximately 142 g.
9. Can the sensor be integrated into existing Bently Nevada monitoring systems?
Yes. It is designed to work with compatible Bently Nevada machinery protection and condition monitoring platforms.
10. Why is the 330500-03-00 an excellent choice for predictive maintenance?
Its durable solid-state design, stable measurement performance, broad frequency response, and reliable long-term operation help maintenance teams detect machinery issues early, reducing downtime and extending equipment life.
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