Introduction
The Bently Nevada 330105-05-12-10-02-00 is a 3300 XL 8 mm Reverse Mount Probe engineered for non-contact measurement of shaft position and vibration in critical rotating machinery. Its reverse-mount design gives equipment engineers greater freedom when the available installation space does not allow a conventional probe arrangement.
Configured with a 1.0-meter total cable length, Miniature ClickLoc coaxial connector, and a non-approved 00 agency configuration, this model is well suited to standard industrial installations where additional hazardous-area approval is not part of the equipment specification. The probe uses the established 3300 XL 8 mm proximity measurement technology and is designed to operate as part of a correctly matched probe, extension cable, and Proximitor Sensor system.
The 330105 family is widely used on rotating equipment where continuous shaft monitoring is required. For maintenance and replacement projects, the exact ordering code is important because apparently similar probes can differ in mounting geometry, cable length, connector configuration, and approval status.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model | 330105-05-12-10-02-00 |
| Product Family | 3300 XL |
| Product Type | 8 mm Reverse Mount Probe |
| Measurement Principle | Eddy-current proximity measurement |
| Mounting Style | Reverse Mount |
| Mounting Thread | 3/8-24 UNF |
| Total Cable Length | 1.0 m / 3.3 ft |
| Cable Length Option | 10 |
| Connector Option | 02 |
| Connector Type | Miniature ClickLoc coaxial connector |
| Agency Approval Option | 00 – Not required |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303/304 stainless steel |
| Probe Diameter | 8 mm |
| Nominal Probe Weight | Approx. 0.323 kg |
| Typical Shipping Weight | Approx. 1.5 kg |
| System | 3300 XL 8 mm Proximity Transducer System |
| Typical Application | Shaft vibration and position monitoring |
Applications
Steam Turbine Shaft Monitoring
Steam turbines depend on accurate information about shaft behavior around critical bearings. The reverse-mount design provides an alternative installation method when normal probe access is restricted by the bearing housing or surrounding mechanical structure.
Gas Turbine Machinery
Gas turbine assemblies can benefit from continuous proximity-based monitoring of shaft vibration and position. The 330105 configuration provides a compact sensing solution for appropriately designed monitoring arrangements.
Compressor Applications
Centrifugal and axial compressors often have limited space around bearing housings. A reverse-mounted probe can help engineers achieve the required probe-to-shaft geometry without forcing a conventional mounting orientation.
Generator Monitoring
Large generators use shaft-monitoring systems to observe dynamic movement and position. The 330105-05-12-10-02-00 can be considered where a 1-meter cable is appropriate for the distance between the probe and the associated connection point.
Pumps and Motors
Critical pumps, motors, fans, and similar rotating assets can use proximity measurement as part of a continuous condition-monitoring strategy. The non-contact design avoids direct mechanical contact with the rotating shaft.
Fluid-Film Bearing Systems
For machinery using fluid-film bearings, shaft displacement and vibration are important indicators of operating condition. A correctly installed 3300 XL 8 mm probe can provide the sensing input required by the associated monitoring system.
Machinery Protection Systems
The probe can form part of a complete machinery protection chain when paired with a compatible 3300 XL Proximitor Sensor and correctly selected extension cable. Proper system configuration is essential to maintaining the intended electrical characteristics.
Industrial Maintenance and Retrofit
This model is particularly relevant when an existing installation specifies a 330105 reverse-mount probe with a 1.0-meter cable, Miniature ClickLoc connector, and 00 approval option. Matching the original part number can simplify replacement planning and reduce installation uncertainty.
Advantages
Reverse-Mount Installation Flexibility
The reverse-mounted construction gives engineers another way to position a proximity probe when standard mounting access is unavailable. This can be valuable around crowded bearing housings and enclosed machine structures.
Practical 1-Meter Cable Length
The 1.0-meter integral cable provides approximately 3.3 feet of reach. It is a useful middle-ground configuration for installations where a short 0.5-meter cable is insufficient but a much longer cable would add unnecessary routing length.
Miniature ClickLoc Connection
The 02 option incorporates a Miniature ClickLoc coaxial connector, providing a compact connection interface for compatible 3300 XL system components.
Standard Non-Approved Configuration
The 00 suffix identifies a configuration where agency approval is not required. This makes the model suitable for standard industrial applications that do not require the additional certification associated with approved configurations.
Durable Probe Construction
The probe uses a PPS sensing tip and AISI 303/304 stainless-steel case construction. These materials provide a robust package for demanding industrial machinery environments.
Non-Contact Sensing
Eddy-current proximity measurement allows the probe to monitor shaft movement without physical contact. This is particularly advantageous on high-speed rotating equipment, where mechanical contact would introduce unnecessary wear.
Established 3300 XL Platform
The 330105 is part of the 3300 XL 8 mm proximity transducer family. It can be incorporated into a properly engineered measurement chain with compatible Proximitor and extension-cable components.
Replacement-Friendly Configuration
For facilities maintaining an existing 3300 XL monitoring installation, retaining the same cable and connector configuration can make replacement work more predictable and reduce the risk of selecting a superficially similar but electrically or mechanically different probe.
Technical FAQs
1. What is the Bently Nevada 330105-05-12-10-02-00?
It is a 3300 XL 8 mm Reverse Mount Probe designed for non-contact monitoring of shaft vibration and position on rotating machinery.
2. What is the cable length?
The 10 option specifies a 1.0-meter total cable length, equivalent to approximately 3.3 feet.
3. What connector does this model use?
The 02 option specifies a Miniature ClickLoc coaxial connector.
4. What does the final “00” mean?
The 00 suffix means that agency approval is not required for this configuration.
5. Is this probe designed for reverse mounting?
Yes. The 330105 family is specifically identified as the 3300 XL 8 mm Reverse Mount Probe family.
6. What measurement technology does it use?
It uses eddy-current proximity measurement, allowing shaft displacement and vibration to be monitored without physical contact between the probe tip and rotating shaft.
7. What is the probe tip made from?
The specified probe tip material is polyphenylene sulfide (PPS).
8. What material is used for the probe case?
The probe case is specified as AISI 303 or 304 stainless steel.
9. How much does the probe weigh?
The listed probe weight is approximately 0.323 kg. Some supplier information gives approximately 1.5 kg as shipping weight, which includes packaging and should not be treated as the actual installed probe weight.
10. Can the 330105-05-12-10-02-00 replace any 330105 probe?
No. The full part number should be checked before substitution. Cable length, mounting configuration, connector type, and agency approval can differ between 330105 variants. The 1.0-meter 10 cable and 00 approval configuration should be matched where those characteristics are required.
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