High-Precision Vibration Monitoring for Critical Rotating Machinery
The Bently Nevada 330104-00-07-50-02-00 3300 XL 8 mm Proximity Probe is a non-contact eddy-current sensor designed for accurate measurement of shaft vibration and radial displacement in high-speed rotating machinery. As part of the proven 3300 XL monitoring system, this probe delivers stable, repeatable signals that support machinery protection, condition monitoring, and predictive maintenance strategies in demanding industrial environments.
Engineered for reliability and interchangeability, this configuration (00-07-50-02-00) typically represents a 5.0 m cable version with standard ClickLoc connector and 70 mm case length, making it suitable for large-scale installations where extended wiring distance is required.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model | 330104-00-07-50-02-00 |
| Series | 3300 XL |
| Probe Type | 8 mm Eddy Current Proximity Probe |
| Measurement | Shaft vibration & displacement |
| System | 3300 XL Proximitor System |
| Linear Range | ~2 mm typical system range |
| Cable Length | 5.0 m (5000 mm) |
| Case Length | 70 mm |
| Connector Type | Miniature coaxial ClickLoc |
| Mounting Thread | M10 × 1 (typical 3300 XL standard) |
| Operating Temperature | -40°C to +120°C |
| Housing Material | Stainless steel |
| Probe Tip Material | High-durability polymer (industrial grade) |
| Output Signal | Voltage proportional to gap |
| System Compatibility | 3300 XL Proximitor / Extension Cable System |
| Weight | Approx. 0.32–2.5 kg (configuration dependent) |
Applications
This probe is widely used in condition monitoring and machinery protection systems across heavy industries:
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Steam and gas turbines
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Centrifugal compressors
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Industrial pumps and pump trains
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Electric motors and generators
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Hydro turbines
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Gearboxes and drive systems
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Oil & gas refining equipment
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Petrochemical processing plants
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Power generation stations
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Predictive maintenance and vibration analysis systems
Advantages
High Measurement Accuracy
Provides precise shaft displacement and vibration monitoring for early fault detection.
Extended Cable Configuration (5 m)
Ideal for large installations requiring flexible routing between probe and monitoring system.
Industry-Proven 3300 XL Platform
Widely used in API 670-compliant machinery protection systems.
Interchangeable System Design
Probe, extension cable, and Proximitor sensor can be replaced independently without recalibration.
Rugged Industrial Construction
Stainless steel body and sealed design ensure durability in harsh environments.
Predictive Maintenance Support
Enables early detection of imbalance, misalignment, and bearing wear.
Stable Long-Term Performance
Maintains signal integrity under high vibration and temperature variations.
Technical FAQs
1. What is the main function of this probe?
It measures shaft vibration and radial displacement in rotating machinery using eddy-current technology.
2. What does the “50” code indicate?
It typically represents a 5.0 m cable length configuration.
3. What system is it compatible with?
It works with the Bently Nevada 3300 XL Proximitor system.
4. What is the probe diameter?
8 mm sensing tip.
5. What is the measurement principle?
Non-contact eddy current displacement measurement of conductive surfaces.
6. Can it be used for high-speed machinery?
Yes, it is suitable for turbines, compressors, and other high-RPM equipment.
7. Does it require recalibration when replaced?
No, 3300 XL components are fully interchangeable without recalibration.
8. What is the operating temperature range?
Typically -40°C to +120°C depending on system configuration.
9. What industries commonly use this probe?
Oil & gas, power generation, petrochemical, and heavy manufacturing industries.
10. Why is this model widely used?
Because it offers long cable flexibility, high reliability, and proven performance in critical machinery monitoring systems.
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