Introduction
The Bently Nevada 330171-00-14-10-02-05 is a 3300 5 mm proximity probe developed for accurate, non-contact measurement of shaft position and vibration in rotating machinery. It uses eddy-current sensing technology and is designed to operate as part of a complete 3300 proximity transducer system.
This particular configuration combines a 1/4-28 UNF thread, 1.4-inch overall case length, 1.0-meter total cable length, and a miniature coaxial ClickLoc connector with standard cable. The final 05 designation identifies the multiple-approval option.
The 1.4-inch case provides a useful alternative to shorter 3300 5 mm probe configurations when the available mounting geometry calls for additional probe-body length. For maintenance departments supporting turbines, compressors, pumps, generators, and other critical rotating assets, this model offers a practical replacement option without sacrificing the established capabilities of the 3300 5 mm transducer platform.
Technical Specifications
The 330171-00-14-10-02-05 follows the standard 330171 configuration family: a 3300 5 mm probe with a 1/4-28 UNF thread and no armor. Its ordering code specifies a 0.0-inch unthreaded section, 1.4-inch case length, 1.0-meter cable, ClickLoc connector, and multiple-approval configuration.
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model | 330171-00-14-10-02-05 |
| Product Type | 3300 5 mm Proximity Probe |
| Sensing Technology | Eddy-current, non-contact |
| Probe Family | 3300 5 mm |
| Thread | 1/4-28 UNF-2A |
| Unthreaded Length | 0.0 in |
| Overall Case Length | 1.4 in (35.6 mm) |
| Total Cable Length | 1.0 m (3.3 ft) |
| Connector | Miniature coaxial ClickLoc connector, standard cable |
| Cable Type | 75 Ω triaxial probe cable |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303/304 stainless steel |
| Probe Tip Diameter | Approximately 5.2 mm |
| Probe Temperature Range | -35°C to +177°C (-31°F to +351°F) |
| Minimum Cable Bend Radius | 25.4 mm (1.0 in) |
| Recommended Probe Case Torque | 5.1 N·m (45 in-lb) |
| Maximum Probe Case Torque | 7.3 N·m (65 in-lb) |
| Probe Weight | Approximately 323 g |
| Typical Total System Weight | Approximately 0.71 kg |
| Agency Approval | 05 — Multiple Approvals |
Applications
Turbine Vibration and Position Monitoring
The probe can be incorporated into turbine monitoring systems to measure shaft movement and provide data for detecting abnormal rotor behavior, vibration, or changing shaft position.
Compressor Monitoring
Compressors operating at high speed benefit from continuous shaft-displacement measurement. The 3300 5 mm system can provide the input needed for monitoring radial vibration and shaft position when correctly installed with compatible system components.
Pump and Motor Protection
For pumps, motors, and generators, proximity measurement can help identify developing mechanical conditions such as imbalance, misalignment, bearing deterioration, or abnormal shaft movement.
Fluid-Film Bearing Machinery
The 3300 5 mm transducer system is particularly appropriate for machinery using fluid-film bearings, where shaft position and dynamic movement are important indicators of operating condition.
Keyphasor and Speed Measurement
In suitable system configurations, 3300 5 mm probes can also be applied to Keyphasor and rotational-speed measurement duties, providing a reference signal for machinery monitoring and analysis.
Continuous Condition Monitoring
For industrial facilities where unexpected rotating-equipment failures can lead to expensive downtime, the probe can form part of a continuous machinery protection and predictive-maintenance strategy.
Advantages
Purpose-Built 5 mm Sensing Format
The 5 mm probe design provides a compact sensing head for installations where available space around the monitored shaft is limited.
1.4-Inch Case Configuration
Compared with shorter 3300 5 mm configurations, the 1.4-inch case gives engineers an additional mechanical-length option for installations where probe geometry requires a slightly longer body.
Stable Non-Contact Measurement
Eddy-current technology allows the probe to detect shaft movement without touching the rotating target. This makes it suitable for high-speed machinery and eliminates mechanical contact at the sensing interface.
Rugged Industrial Materials
The probe uses a stainless-steel case and PPS tip material. The 3300 5 mm design also incorporates TipLoc molding technology intended to create a robust bond between the probe tip and body.
Convenient 1-Meter Cable
The 1.0-meter cable provides a practical connection length for many installations without the additional cable management associated with substantially longer configurations.
Secure ClickLoc Interface
The miniature coaxial ClickLoc connector provides a convenient connection method for compatible 3300 system components and helps simplify installation and service work.
Multiple-Approval Configuration
The final 05 option provides the multiple-approval configuration for installations where the corresponding approval requirements apply.
Strong Choice for Replacement Projects
For facilities already using 3300 5 mm proximity systems, matching the exact mechanical and electrical configuration can make spare-parts replacement more straightforward and reduce the risk of selecting a superficially similar but unsuitable probe.
Technical FAQs
1. What is the Bently Nevada 330171-00-14-10-02-05?
It is a 3300 series 5 mm proximity probe with a 1/4-28 UNF thread, 1.4-inch overall case length, 1.0-meter cable, miniature coaxial ClickLoc connector, and multiple-approval option.
2. What is the main purpose of this proximity probe?
It is used for non-contact measurement of shaft position and dynamic shaft movement in compatible rotating-machinery monitoring systems.
3. What is the sensing principle?
The probe uses eddy-current sensing. The resulting measurement varies with the distance between the probe tip and a conductive target, allowing the associated transducer system to determine shaft displacement and vibration.
4. What is the overall case length?
The case length option is 1.4 inches, or approximately 35.6 mm.
5. What type of mounting thread does it use?
The 330171 series uses a 1/4-28 UNF-2A thread. The 330171 designation also indicates the unarmored 3300 5 mm probe family.
6. How long is the cable on this model?
The total cable length is 1.0 meter (3.3 feet).
7. What does the “02” in the part number specify?
The 02 connector option identifies the miniature coaxial ClickLoc connector with standard cable.
8. What does the final “05” represent?
The 05 agency-approval option identifies the multiple-approval configuration. The applicable approval requirements should be confirmed for the intended installation.
9. What is the weight of the probe?
The standard 3300 5 mm probe weighs approximately 323 g (0.323 kg). The complete transducer system is typically approximately 0.71 kg, depending on the extension cable and Proximitor sensor.
10. Can this model replace another 3300 5 mm probe with a different case length?
Not automatically. Although the sensing technology and probe family may be the same, the case length affects installation geometry. Before replacement, compare the complete part number, mounting arrangement, required probe length, cable length, connector, approval option, and the associated transducer-system components.
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