



Introduction
The Bently Nevada 330103-07-12-10-02-00 3300 XL 8 mm Proximity Probe is a high-precision eddy current sensor designed for continuous monitoring of shaft vibration and position in critical rotating machinery. As part of the trusted 3300 XL platform, it delivers stable, repeatable measurements that support predictive maintenance strategies in demanding industrial environments.
Built for turbine systems, compressors, pumps, and generators, this probe is engineered to maintain signal integrity even under high vibration, temperature variation, and long-term operational stress. Its modular design allows seamless integration into Bently Nevada’s complete proximity transducer system.
Technical Specifications
| Parameter | Value |
|---|
| Series | 3300 XL 8 mm |
| Model | 330103-07-12-10-02-00 |
| Probe Type | Eddy current proximity probe |
| Probe Tip Diameter | 8 mm |
| Thread Type | M10 × 1 |
| Unthreaded Length Option | 07 (approx. 70 mm configuration) |
| Case Length Option | 12 (approx. 120 mm configuration) |
| Cable Length | 1.0 m (standard 3300 XL system length) |
| Connector Type | Miniature coaxial ClickLoc™ |
| Cable Type | Low-noise coaxial industrial cable |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Body Material | Stainless steel (AISI 303/304) |
| Operating Temperature | -35°C to +177°C |
| Storage Temperature | -51°C to +177°C |
| Sensitivity | ~7.87 V/mm (system dependent) |
| Measurement Range | 0.25 mm – 2.0 mm typical |
| Weight | Approx. 0.32 kg |
Applications
This probe is widely used in machinery condition monitoring systems where accurate displacement measurement is critical for operational safety and efficiency.
Key applications include:
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Steam and gas turbine shaft vibration monitoring
-
Centrifugal compressor radial and axial position sensing
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Pump shaft displacement and bearing condition tracking
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Generator rotor stability monitoring
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Gearbox vibration diagnostics in heavy industry
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Keyphasor and speed reference systems
-
Continuous condition monitoring in oil & gas and power plants
Its non-contact sensing principle ensures long-term reliability without mechanical wear.
Technical FAQs
1. What is the main function of this probe?
It measures shaft vibration and displacement using eddy current technology.
2. Is this a contact or non-contact sensor?
It is a non-contact proximity probe.
3. What does the “07” code represent?
It indicates the mechanical unthreaded length configuration.
4. What is the probe diameter?
The probe diameter is 8 mm.
5. What industries typically use it?
Power generation, oil & gas, petrochemical, and heavy manufacturing.
6. What is the operating temperature range?
From -35°C to +177°C depending on system configuration.
7. What connector type is used?
A ClickLoc™ miniature coaxial connector.
8. What is the typical weight?
Approximately 0.32 kg.
9. Can it be used for speed measurement?
Yes, in Keyphasor and speed monitoring configurations.
10. Is it compatible with other 3300 XL components?
Yes, it is fully compatible with extension cables and Proximitor sensors in the 3300 XL system.