Extended-Reach FluidLoc™ Probe for Demanding Industrial Machinery
The Bently Nevada 330101-32-70-05-12-05 3300 XL 8 mm Proximity Probe is a premium non-contact eddy-current sensor designed to provide highly accurate shaft vibration, shaft position, and radial displacement measurements for critical rotating equipment. As a member of the proven 3300 XL 8 mm Proximity Transducer System, this probe combines exceptional measurement stability, robust environmental performance, and long-term reliability to support continuous machinery protection and predictive maintenance strategies.
This configuration incorporates a 3.2 in. (81.3 mm) unthreaded length, a 7.0 in. (177.8 mm) overall case length, a 0.5 m (1.6 ft) integrated cable, a Miniature ClickLoc™ connector with FluidLoc™ cable, and CSA, ATEX, and IECEx hazardous-area approvals. The extended probe body is well suited for applications requiring deeper installation while the FluidLoc™ cable enhances resistance to oil and fluid ingress in harsh industrial environments.
Product Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330101-32-70-05-12-05 |
| 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 | 3.2 in. (81.3 mm) |
| Overall Case Length | 7.0 in. (177.8 mm) |
| Integrated Cable Length | 0.5 m (1.6 ft) |
| Cable Type | FluidLoc™ Cable |
| Connector Type | Miniature ClickLoc™ Coaxial Connector |
| Linear 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 Material | 303/304 Stainless Steel |
| Agency Approvals | CSA, ATEX, IECEx |
| Dimensions | Approx. Ø8 mm × 177.8 mm |
| Approximate Net Weight | 0.36 kg |
| Approximate Shipping Weight | 0.60 kg |
Typical Industrial Applications
The 330101-32-70-05-12-05 is engineered for continuous online monitoring of rotating equipment operating under demanding industrial conditions.
Typical installations include:
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Steam turbines
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Gas turbines
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Centrifugal compressors
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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 & gas production platforms
Its extended 7.0-inch probe body and FluidLoc™ cable make it particularly suitable for machinery requiring deeper mounting locations and enhanced cable protection against industrial fluids.
Technical FAQs
1. What is the primary function of this probe?
It provides non-contact measurement of shaft vibration, shaft displacement, and shaft position using eddy-current sensing technology.
2. What does the "32" option represent?
The 32 option specifies a 3.2-inch (81.3 mm) unthreaded probe length.
3. What is the overall probe case length?
This configuration features a 7.0-inch (177.8 mm) overall case length for applications requiring extended probe reach.
4. What cable length is supplied?
The probe includes a factory-installed 0.5-meter (1.6-foot) cable.
5. What does the "12" connector option indicate?
Option 12 specifies a Miniature ClickLoc™ connector with a FluidLoc™ cable, offering improved protection against fluid ingress while maintaining secure signal transmission.
6. What approvals are included with Option 05?
Option 05 includes CSA, ATEX, and IECEx hazardous-area certifications.
7. Which machinery commonly uses this probe?
It is widely installed on turbines, compressors, generators, pumps, motors, and other rotating equipment requiring continuous shaft monitoring.
8. Can this probe be used independently?
No. It must operate together with a compatible 3300 XL Proximitor Sensor and the appropriate extension cable to form a complete transducer system.
9. What advantages does the FluidLoc™ cable provide?
FluidLoc™ cable construction offers enhanced resistance to oil and fluid penetration, improving durability and reliability in harsh industrial environments.
10. Is this probe designed for continuous monitoring?
Yes. It is engineered for permanent installation in machinery protection and condition monitoring systems operating 24 hours a day.
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