



Introduction
The Bently Nevada 330171-00-15-90-02-05 is a 3300 5 mm proximity probe configured for non-contact measurement of shaft position and vibration in critical rotating machinery. As part of the 3300 5 mm transducer family, it uses eddy-current sensing to detect changes in the gap between the probe tip and a conductive shaft target.
This particular configuration is notable for its 1.5-inch overall case length and 9.0-meter cable length. It uses a 1/4-28 UNF thread, a miniature coaxial ClickLoc connector, and the multiple-approval option. The extended 9-meter cable makes this version especially useful where the machinery sensing point is located a considerable distance from the associated signal-conditioning equipment.
For operators and maintenance teams responsible for turbines, compressors, pumps, generators, and other high-value rotating assets, the 330171-00-15-90-02-05 provides a practical way to extend a compatible 3300 monitoring installation while retaining the compact 5 mm probe format.
Technical Specifications
The 330171-00-15-90-02-05 is built from the standard 330171 configuration family: a 3300 5 mm probe with 1/4-28 UNF thread and without armor. Its complete ordering code defines the mechanical dimensions, cable length, connector arrangement, and approval configuration.
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model | 330171-00-15-90-02-05 |
| Product Type | 3300 5 mm Proximity Probe |
| Sensing Principle | Eddy-current, non-contact |
| Probe Family | 3300 5 mm |
| Thread | 1/4-28 UNF |
| Armor | Without armor |
| Unthreaded Length | 0.0 in |
| Overall Case Length | 1.5 in (38.1 mm) |
| Total Cable Length | 9.0 m (29.5 ft) |
| Connector | Miniature coaxial ClickLoc connector |
| Cable Type | Standard cable |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303/304 stainless steel |
| Probe Temperature Range | -35°C to +177°C (-31°F to +351°F) |
| Agency Approval | 05 — Multiple Approvals |
| Probe Weight | Approximately 0.255 kg |
| Shipping Weight | Approximately 1.5 kg |
Applications
Long-Distance Machinery Monitoring
The 9-meter cable is the primary practical advantage of this configuration. It allows the probe to be installed at machinery locations that are relatively far from the monitoring cabinet or signal-conditioning equipment.
Steam and Gas Turbines
The probe can be integrated into suitable turbine monitoring arrangements for measuring shaft displacement and dynamic vibration. Continuous shaft measurements can provide important information about rotor behavior during operation.
Centrifugal Compressors
For large compressors, the distance between the sensing location and monitoring hardware can make cable selection an important part of the system design. The 9-meter configuration offers additional installation reach where the standard shorter versions are insufficient.
Pumps and Generators
The 3300 5 mm transducer system is suitable for appropriate pump, motor, and generator applications where radial shaft vibration or position information is required.
Fluid-Film Bearing Machinery
The 3300 5 mm system is intended for vibration and position measurement on fluid-film bearing machines and can also support suitable Keyphasor and speed-measurement applications.
Machinery Protection and Predictive Maintenance
When connected to the appropriate Proximitor sensor and extension arrangement, proximity measurements can become part of a broader machinery protection strategy, helping maintenance personnel identify changes in shaft behavior before they develop into more serious equipment problems.
Advantages
Extended 9-Meter Cable Reach
The most obvious benefit of the 330171-00-15-90-02-05 is its 9.0-meter cable configuration. It is an attractive option when shorter probe-cable versions cannot comfortably reach the intended monitoring equipment.
Compact 5 mm Sensing Technology
Despite its extended cable length, the sensing head remains part of the compact 3300 5 mm probe family. This is useful for machinery locations where installation space around the shaft is restricted.
Non-Contact Shaft Measurement
Eddy-current technology allows the probe to measure shaft movement without physically contacting the rotating target. This makes it well suited to high-speed rotating equipment and continuous monitoring applications.
Durable Industrial Construction
The probe uses a stainless-steel case and PPS tip material, providing a robust construction for demanding industrial machinery environments. The 3300 5 mm design is intended for reliable operation across a broad probe temperature range.
ClickLoc Connection
The miniature coaxial ClickLoc connector provides a practical interface for compatible 3300 system components and simplifies connection within an established monitoring arrangement.
Multiple-Approval Configuration
The final 05 ordering option identifies the multiple-approval configuration. This can be valuable for installations where the applicable equipment approvals need to be incorporated into the selected probe configuration.
A Practical Choice for Replacement and Expansion
For plants already operating a 3300 5 mm proximity system, using the correct full part number can make replacement and system expansion more predictable. The 330171-00-15-90-02-05 is particularly useful where both the 1.5-inch case configuration and 9-meter cable length are required.
Technical FAQs
1. What is the Bently Nevada 330171-00-15-90-02-05?
It is a Bently Nevada 3300 series 5 mm proximity probe with a 1/4-28 UNF thread, 1.5-inch overall case length, 9.0-meter total cable length, miniature coaxial ClickLoc connector, and multiple-approval configuration.
2. What does the 330171 designation mean?
330171 identifies the 3300 5 mm probe with a 1/4-28 UNF thread and without armor. The remaining part-number fields specify the exact mechanical and cable configuration.
3. How long is the cable on this model?
The probe has a 9.0-meter (29.5-foot) total cable length. This is the “90” cable-length option in the ordering code.
4. What is the case length?
The overall case length is 1.5 inches (38.1 mm).
5. What mounting thread does it use?
This model uses a 1/4-28 UNF thread and belongs to the unarmored 330171 probe family.
6. What type of connector is included?
The 02 connector option specifies a miniature coaxial ClickLoc connector with standard cable.
7. What does the final “05” mean?
The final 05 identifies the multiple-approval option for the probe. The specific approval requirements should be matched to the installation before procurement.
8. Can the probe measure both vibration and shaft position?
Yes. When used as part of a properly matched 3300 transducer system, the probe can support both static shaft-position and dynamic vibration measurements.
9. What is the weight of the 330171-00-15-90-02-05?
The listed product weight is approximately 0.255 kg (255 g). The listed shipping weight is approximately 1.5 kg, which includes packaging and therefore should not be confused with the probe's actual product weight.
10. Can this 9-meter probe replace a shorter 3300 5 mm probe?
Not automatically. While several 3300 5 mm probes use the same basic sensing technology, the complete part number determines case length, cable length, connector, and approval configuration. The installation should be checked carefully before substituting a 9-meter version for a shorter probe.