High-Performance Proximity Sensing for Industrial Asset Protection
The Bently Nevada 330101-20-45-05-02-05 3300 XL 8 mm Proximity Probe is a precision-engineered eddy-current sensor developed to provide reliable, non-contact measurement of shaft vibration, axial position, and radial displacement in critical rotating equipment. As an integral component of the 3300 XL 8 mm Proximity Transducer System, this probe helps maintenance teams monitor machine health in real time, enabling early fault detection and reducing the risk of unexpected equipment failures. Its proven sensing technology makes it an excellent choice for demanding industrial environments where operational reliability is essential.
This configuration includes a 2.0 in. (50.8 mm) unthreaded length, a 4.5 in. (114.3 mm) overall case length, a 0.5 m (1.6 ft) integrated standard cable, a Miniature ClickLoc™ coaxial connector, and CSA, ATEX, and IECEx hazardous-area approvals. Designed for seamless integration with compatible 3300 XL Proximitor Sensors and extension cables, it delivers stable performance throughout the equipment lifecycle.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330101-20-45-05-02-05 |
| Product Type | 3300 XL 8 mm Proximity Probe |
| Product Series | 3300 XL 8 mm Proximity Transducer System |
| Sensing Technology | Non-contact Eddy Current |
| Probe Diameter | 8 mm |
| Thread Size | 3/8-24 UNF |
| Unthreaded Length | 2.0 in. (50.8 mm) |
| Overall Case Length | 4.5 in. (114.3 mm) |
| Integrated Cable Length | 0.5 m (1.6 ft) |
| Cable Type | Standard FEP Cable |
| Connector Type | Miniature ClickLoc™ Coaxial Connector |
| Measurement Range | 2.0 mm (80 mils) |
| Sensitivity | 7.87 V/mm (200 mV/mil) ±5% |
| Frequency Response | 0 Hz to 10 kHz |
| Operating Temperature | -52°C to +177°C (-62°F to +351°F) |
| Agency Approvals | CSA, ATEX, IECEx |
| Dimensions | Approx. Ø8 mm × 114.3 mm |
| Approximate Net Weight | 0.32 kg |
| Approximate Shipping Weight | 0.50 kg |
Applications
Designed for continuous machine condition monitoring, the 330101-20-45-05-02-05 is suitable for a wide variety of rotating equipment operating in harsh industrial environments.
Typical applications include:
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Steam and gas turbines
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Centrifugal compressors
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Industrial pumps
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Electric motors
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Power generators
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High-speed gearboxes
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Fans and blowers
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Petrochemical processing facilities
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Offshore oil and gas platforms
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Refining and chemical production plants
Its hazardous-area certifications and robust mechanical design make it an ideal solution for installations requiring dependable monitoring under challenging operating conditions.
Technical FAQs
1. What is the primary purpose of this proximity probe?
It is designed to measure shaft vibration, shaft position, and displacement without physical contact using eddy-current sensing technology.
2. Which monitoring system is this probe compatible with?
It is designed specifically for the Bently Nevada 3300 XL 8 mm Proximity Transducer System.
3. What does the "20" option indicate?
The 20 option represents a 2.0-inch (50.8 mm) unthreaded length, allowing greater flexibility during installation.
4. What is the overall probe case length?
This model features a 4.5-inch (114.3 mm) overall case length.
5. What cable length is included?
The probe is supplied with a 0.5 m (1.6 ft) factory-integrated standard cable.
6. Which connector does this probe use?
It utilizes a Miniature ClickLoc™ coaxial connector, providing secure installation and reliable signal transmission.
7. Does this model include hazardous-area approvals?
Yes. The Option 05 configuration includes CSA, ATEX, and IECEx certifications for approved hazardous-area installations.
8. Which machinery commonly uses this probe?
It is widely used on turbines, compressors, generators, pumps, motors, and other critical rotating equipment.
9. Can it operate without a Proximitor Sensor?
No. The probe must be paired with a compatible 3300 XL Proximitor Sensor and the appropriate extension cable when required to complete the transducer system.
10. Is this probe suitable for continuous online monitoring?
Yes. It is engineered for permanent installation in machinery protection and predictive maintenance systems that operate continuously.
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