Armored 3300 XL Probe Designed for Accurate Shaft Monitoring in Critical Machinery
The Bently Nevada 330102-03-20-10-02-05 3300 XL 8 mm Proximity Probe is a high-performance armored eddy-current proximity sensor developed for continuous monitoring of rotating machinery. As part of the widely adopted 3300 XL 8 mm Proximity Transducer System, this probe provides precise measurement of shaft vibration, radial displacement, and axial position without physical contact, helping operators improve equipment reliability and reduce unexpected failures.
The 330102 series represents the armored version of the 3300 XL 8 mm probe family, offering improved mechanical protection for installations where cable exposure, vibration, or industrial conditions require additional durability. This model configuration includes a 0.3 in. (7.6 mm) unthreaded length, a 2.0 in. (50.8 mm) overall case length, a 1.0 m (3.3 ft) standard cable, a Miniature ClickLoc™ coaxial connector, and CSA, ATEX, and IECEx hazardous-area approvals.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330102-03-20-10-02-05 |
| Product Type | 3300 XL 8 mm Armored Proximity Probe |
| Product Series | 3300 XL 8 mm Proximity Transducer System |
| Probe Construction | Armored Cable Design |
| Measurement Technology | Non-contact Eddy Current |
| Probe Diameter | 8 mm |
| Thread Type | 3/8-24 UNF-2A |
| Unthreaded Length | 0.3 in. (7.6 mm) |
| Overall Case Length | 2.0 in. (50.8 mm) |
| Integrated Cable Length | 1.0 m (3.3 ft) |
| Cable Type | Standard Armored Cable |
| Connector Type | Miniature ClickLoc™ Coaxial Connector |
| Measurement Range | 2.0 mm (80 mils) |
| Sensitivity | 7.87 V/mm (200 mV/mil) |
| Frequency Response | 0 Hz to 10 kHz |
| Operating Temperature | -52°C to +177°C (-62°F to +350°F) |
| Housing Material | Stainless Steel |
| Agency Approval | CSA, ATEX, IECEx |
| Dimensions | Approx. Ø8 mm × 50.8 mm case length |
| Approximate Net Weight | 0.32 kg |
| Approximate Shipping Weight | 0.55 kg |
Applications
The 330102-03-20-10-02-05 is designed for machinery protection systems where reliable shaft measurement is essential. Its armored cable design makes it suitable for equipment exposed to mechanical stress, vibration, and industrial contamination.
Common applications include:
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Steam turbines
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Gas turbines
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Centrifugal compressors
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Pumps
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Electric motors
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Generators
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Gearboxes
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Turbo-expanders
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Refinery rotating equipment
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Petrochemical processing machinery
The probe is commonly integrated into online vibration monitoring systems to provide early warning of imbalance, misalignment, shaft instability, and bearing-related issues.
Technical FAQs
1. What is the main purpose of the Bently Nevada 330102-03-20-10-02-05?
It is used to measure shaft vibration, displacement, and position in rotating machinery through non-contact eddy-current technology.
2. What is the difference between 330101 and 330102 models?
The 330102 series includes an armored cable design, while the 330101 series uses a standard non-armored cable configuration.
3. What does the "03" option represent?
The 03 ordering option indicates a 0.3-inch unthreaded probe length.
4. What does the "20" option represent?
The 20 option specifies a 2.0-inch overall case length.
5. What cable length is included?
This model includes a 1.0-meter (3.3-foot) integrated cable.
6. What connector type does this probe use?
It uses a Miniature ClickLoc™ coaxial connector for secure connection with compatible extension cables and Proximitor Sensors.
7. What does the "05" approval code indicate?
Option 05 identifies the hazardous-area approval package including CSA, ATEX, and IECEx certifications.
8. Can this probe work independently?
No. A complete system requires a compatible 3300 XL Proximitor Sensor and matching extension cable.
9. Why choose an armored proximity probe?
Armored probes provide additional cable protection in environments where abrasion, vibration, or accidental impact may occur.
10. What equipment commonly uses this probe?
It is widely installed on turbines, compressors, pumps, motors, generators, and other critical rotating machinery requiring continuous monitoring.
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