Advanced FluidLoc™ Proximity Probe for Precision Machinery Protection
The Bently Nevada 330101-33-52-10-12-05 3300 XL 8 mm Proximity Probe is a high-performance non-contact eddy-current sensor engineered for continuous measurement of shaft vibration, axial position, and radial displacement in critical rotating equipment. As part of the proven 3300 XL 8 mm Proximity Transducer System, it delivers outstanding accuracy, repeatability, and long-term stability for machinery protection and predictive maintenance applications. The system is designed for complete interchangeability with compatible probes, extension cables, and Proximitor sensors, simplifying installation and maintenance while ensuring dependable performance.
This configuration features a 3.3 in. (83.8 mm) unthreaded length, a 5.2 in. (132.1 mm) overall case length, a 1.0 m (3.3 ft) integrated FluidLoc™ cable, a Miniature ClickLoc™ coaxial connector, and CSA, ATEX, and IECEx hazardous-area approvals. The FluidLoc™ cable construction provides enhanced resistance against oil and fluid ingress, making it particularly suitable for harsh industrial environments.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330101-33-52-10-12-05 |
| Product Type | 3300 XL 8 mm Proximity Probe |
| Product Series | 3300 XL 8 mm Proximity Transducer System |
| Measurement Technology | Non-contact Eddy Current |
| Probe Diameter | 8 mm |
| Thread Size | 3/8-24 UNF |
| Unthreaded Length | 3.3 in. (83.8 mm) |
| Overall Case Length | 5.2 in. (132.1 mm) |
| Integrated Cable Length | 1.0 m (3.3 ft) |
| Cable Type | FluidLoc™ 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 | -51°C to +177°C (-60°F to +351°F) |
| Probe Housing Material | Stainless Steel |
| Agency Approvals | CSA, ATEX, IECEx |
| Dimensions | Approx. Ø8 mm × 132.1 mm |
| Approximate Net Weight | 0.34 kg |
| Approximate Shipping Weight | 0.58 kg |
Typical Applications
The 330101-33-52-10-12-05 is designed for permanent installation in rotating machinery where continuous shaft condition monitoring is essential.
Typical applications include:
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Steam turbines
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Gas turbines
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Centrifugal compressors
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Industrial process 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
Its extended probe body and FluidLoc™ cable provide excellent durability in environments exposed to lubricants, moisture, and aggressive process conditions.
Technical FAQs
1. What does this proximity probe measure?
It measures shaft vibration, shaft position, and shaft displacement using non-contact eddy-current sensing technology.
2. What does the "33" option indicate?
The 33 option specifies a 3.3-inch (83.8 mm) unthreaded probe length.
3. What is the overall probe case length?
This model features a 5.2-inch (132.1 mm) overall case length suitable for applications requiring additional installation depth.
4. What cable length is supplied?
The probe includes a factory-installed 1.0-meter (3.3-foot) integrated cable.
5. What does the "12" connector option represent?
Option 12 specifies a Miniature ClickLoc™ connector with a FluidLoc™ cable, offering improved protection against fluid ingress while maintaining reliable signal transmission.
6. What approvals are included with Option 05?
Option 05 includes CSA, ATEX, and IECEx hazardous-area certifications for qualified industrial installations.
7. Which machinery commonly uses this probe?
It is widely installed on turbines, compressors, generators, pumps, motors, fans, and other rotating equipment requiring continuous shaft monitoring.
8. Does the probe require additional components?
Yes. It is designed to operate with a compatible 3300 XL Proximitor Sensor and the appropriate extension cable to complete the transducer system.
9. What are the advantages of the FluidLoc™ cable?
FluidLoc™ technology improves cable sealing against moisture, lubricants, and process fluids, enhancing long-term reliability in demanding environments.
10. Is this probe suitable for continuous online monitoring?
Yes. It is engineered for permanent installation in machinery protection and condition monitoring systems operating continuously.
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