



High-Precision Monitoring Designed for Critical Rotating Assets
The Bently Nevada 330101-00-28-05-02-00 3300 XL 8 mm Proximity Probe is a robust eddy current sensor engineered for continuous measurement of shaft vibration and displacement in industrial rotating machinery. Built within the proven 3300 XL platform, this probe delivers stable signal output, high measurement accuracy, and long-term operational reliability in demanding industrial environments.
It is widely used in machinery protection and predictive maintenance systems where real-time condition monitoring is essential for reducing downtime risk and improving asset performance across energy and process industries.
Technical Specifications & Mechanical Configuration
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330101-00-28-05-02-00 |
| Series | 3300 XL |
| Probe Type | 8 mm Proximity Probe |
| Measurement Principle | Eddy Current Technology |
| Probe Diameter | 8 mm |
| Function | Shaft vibration & displacement monitoring |
| Thread Size | 3/8-24 UNF |
| Connector Type | Miniature coaxial ClickLoc |
| Cable Configuration | Standard industrial cable |
| Cable Length Option | 0.5 m (typical “05” configuration) |
| Case Length Option | 2.8 in |
| Mounting Style | Threaded installation |
| Housing Material | Stainless steel |
| System Compatibility | 3300 XL Proximitor Systems |
| Operating Environment | Industrial machinery monitoring |
| Approximate Weight | ~0.32–0.60 kg |
| Temperature Range | Industrial-duty operation |
Industrial Application Areas
The 3300 XL 8 mm proximity probe is widely deployed in rotating equipment monitoring systems where precise vibration tracking is essential for safe and efficient operation.
Typical Use Cases
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Steam turbine vibration monitoring
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Gas compressor protection systems
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Generator rotor displacement measurement
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Industrial pump condition monitoring
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Motor shaft vibration analysis
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Oil & gas processing equipment
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Petrochemical refining systems
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Power plant machinery protection
Its high-resolution sensing capability enables early detection of imbalance, misalignment, and bearing-related issues before they escalate into equipment failures.
Key Engineering Advantages
Stable High-Accuracy Signal Output
The probe provides consistent eddy current measurement performance, ensuring reliable vibration trending and diagnostics.
Compact and Flexible Installation Design
The shorter cable configuration supports installations in space-constrained machinery layouts without compromising signal integrity.
Strong Industrial Durability
Stainless steel construction ensures resistance to mechanical stress, vibration, and harsh operating environments.
Seamless Integration with 3300 XL Systems
Designed for full compatibility with Bently Nevada 3300 XL Proximitor modules, enabling straightforward system integration.
Supports Predictive Maintenance Strategies
Continuous monitoring improves maintenance planning by identifying early-stage mechanical deterioration trends.
Technical FAQs
1. What is the primary function of this probe?
It measures shaft vibration and displacement in rotating machinery using non-contact sensing.
2. What technology does it use?
It uses eddy current technology for precise proximity measurement.
3. Which systems is it compatible with?
It is designed for Bently Nevada 3300 XL monitoring systems.
4. What does the “28-05” configuration indicate?
It refers to mechanical case length and cable length configuration within the 3300 XL ordering system.
5. Is it suitable for continuous operation?
Yes, it is engineered for continuous industrial condition monitoring.
6. Which industries commonly use it?
Power generation, oil & gas, petrochemical, and heavy manufacturing industries.
7. What equipment is typically monitored?
Turbines, compressors, pumps, motors, and generators.
8. Can it operate in harsh environments?
Yes, its stainless steel housing supports demanding industrial conditions.
9. Does it support predictive maintenance?
Yes, it is widely used in condition-based maintenance systems.
10. Why is the 3300 XL series widely used?
Because it offers reliable accuracy, interchangeability, and strong long-term performance in critical machinery protection.