Introduction
The Bently Nevada 330173-00-08-05-02-05 is a 3300 5 mm Proximity Probe designed for non-contact measurement of shaft displacement, position, and dynamic vibration in rotating machinery. It is part of the 330173 metric probe family, featuring an M8 × 1 thread and unarmored construction. The 3300 5 mm system is intended to operate as part of a complete proximity transducer arrangement with compatible Proximitor sensors and extension cables.
What makes this configuration particularly distinctive is its combination of an 80 mm overall case length, 0.5-meter total cable length, standard miniature coaxial ClickLoc connector, and multiple-approval configuration. The 80 mm body provides a longer mechanical configuration than the 40 mm, 50 mm, 60 mm, and 70 mm versions commonly encountered in the same 330173 family.
For maintenance and machinery-monitoring applications, this exact configuration can be valuable when the existing installation requires a longer M8 × 1 probe body but only a relatively short cable run to the associated monitoring electronics.
Technical Specifications
The complete ordering number should be used when specifying this probe. Each section of 330173-00-08-05-02-05 identifies an important characteristic of the assembly, including the unthreaded length, case length, cable length, connector, and approval configuration.
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model | 330173-00-08-05-02-05 |
| Product Type | 3300 5 mm Proximity Probe |
| Sensing Principle | Eddy-current, non-contact |
| Probe Series | 3300 5 mm |
| Base Model | 330173 |
| Mounting Thread | M8 × 1 |
| Construction | Without armor |
| Unthreaded Length Option | 0.0 mm |
| Overall Case Length | 80 mm (3.15 in) |
| Total Cable Length | 0.5 m (1.6 ft) |
| Connector | Miniature coaxial ClickLoc connector |
| Cable Type | Standard cable |
| Cable Impedance | 75 Ω |
| Probe Tip Diameter | 5.2 mm (0.21 in) |
| Probe Tip Material | PPS |
| Probe Case Material | Stainless steel |
| Probe Temperature Range | Approximately -35°C to +177°C |
| Minimum Cable Bend Radius | 25.4 mm (1.0 in) |
| Typical Probe Weight | Approximately 0.71 kg* |
| Agency Approval | Multiple Approvals |
Applications
Turbine Shaft Monitoring
The 330173-00-08-05-02-05 can be integrated into suitable turbine monitoring systems for continuous observation of shaft movement and position. Proximity measurements can provide important operating information for machinery protection and maintenance programs.
Compressor Rotor Monitoring
In high-speed compressors, shaft displacement and vibration are important indicators of mechanical condition. The 3300 5 mm platform provides a non-contact sensing solution for compatible rotor-monitoring applications.
Pumps and Motors
The probe can be applied to suitable pumps, motors, and other rotating machinery where shaft movement needs to be monitored continuously. Its M8 × 1 mounting arrangement is appropriate for compatible metric installations.
Generator Applications
Generators and other critical rotating equipment can use proximity probes as part of a broader vibration and shaft-position monitoring strategy.
Fluid-Film Bearing Machines
The 3300 5 mm system is particularly suitable for machinery equipped with fluid-film bearings. With the appropriate Proximitor and extension-cable arrangement, it can provide static shaft-position and dynamic vibration information.
Keyphasor and Speed Monitoring
Suitable 3300 5 mm configurations can also be incorporated into Keyphasor and speed-measurement arrangements, making the probe useful beyond conventional vibration monitoring.
Compact Cable-Run Installations
The 0.5-meter cable makes this model attractive where the probe and signal-conditioning hardware are installed relatively close together. Shorter cable routing can simplify installation and cable management.
Maintenance Replacement
For an existing 3300 installation requiring an 80 mm M8 × 1 probe with a 0.5-meter standard cable, the complete 330173-00-08-05-02-05 configuration can be a strong replacement candidate, provided the mechanical and certification requirements match.
Advantages
80 mm Extended Case
The 80 mm case length gives this probe a longer physical configuration than several shorter 330173 options. This can be useful where the original machinery design requires additional probe-body length.
M8 × 1 Metric Thread
The M8 × 1 thread provides a clear metric mounting solution and distinguishes the 330173 family from 330171 and 330172 probes based on 1/4-28 UNF mounting.
Compact 5 mm Sensing Tip
The approximately 5.2 mm sensing tip provides a relatively small measurement interface for machinery locations where space around the shaft is limited.
Non-Contact Eddy-Current Technology
The probe measures a conductive target without physical contact. This makes it suitable for continuous shaft monitoring without mechanical contact between the probe tip and rotating surface.
Short 0.5-Meter Cable
The 0.5-meter cable can reduce excess cable in compact installations. Where the Proximitor or extension connection is nearby, the shorter cable can make routing cleaner and easier to manage.
ClickLoc Connector
The miniature coaxial ClickLoc connector provides a compact connection interface for compatible 3300 transducer-system components.
Multiple-Approval Configuration
The final 05 identifies the multiple-approval option. This can be important for machinery installed in environments where specific agency or hazardous-location requirements apply. The exact applicable approval should be checked against the installation.
Strong Configuration Matching
This model is particularly useful when the application requires a very specific combination of 80 mm case length + 0.5 m cable + M8 × 1 thread + standard ClickLoc connector + multiple approvals. Matching the full ordering number helps avoid the common mistake of selecting a probe solely by sensing diameter.
Technical FAQs
1. What is the Bently Nevada 330173-00-08-05-02-05?
It is a 3300 5 mm proximity probe with an M8 × 1 mounting thread, unarmored construction, 80 mm case length, 0.5-meter cable, miniature coaxial ClickLoc connector, and multiple-approval configuration.
2. What does the 330173 series represent?
The 330173 series represents the 3300 5 mm probe with M8 × 1 thread and without armor. The related 330174 family uses the M8 × 1 thread with armor.
3. What does the first “00” indicate?
The first 00 identifies the 0.0 mm unthreaded-length option.
4. What does “08” specify?
The 08 identifies the 80 mm overall case-length option, approximately 3.15 inches.
5. How long is the cable?
The 05 cable-length option specifies a 0.5-meter (1.6-foot) total cable length.
6. What connector does the probe use?
The 02 configuration specifies a miniature coaxial ClickLoc connector with standard cable.
7. What does the final “05” mean?
The final 05 identifies the multiple-approval configuration. Certification requirements should be checked against the actual machinery installation before ordering.
8. Is the probe armored?
No. The 330173 family is the M8 × 1, without-armor configuration. For an armored M8 × 1 3300 5 mm probe, the 330174 family should be evaluated instead.
9. What is the probe tip diameter?
The 3300 5 mm probe uses a nominal 5.2 mm (0.21-inch) probe tip.
10. Can this probe replace a 330173 probe with a different case length?
Not automatically. The 80 mm case length, M8 × 1 thread, unthreaded length, 0.5-meter cable, connector type, and approval configuration should all be compared with the existing installation. Even probes within the same 3300 5 mm family may not be mechanically interchangeable.
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