Introduction
The Bently Nevada 330173-00-07-10-02-00 is a 3300 5 mm Proximity Probe designed for accurate, non-contact measurement of shaft position and dynamic movement in rotating machinery. It is part of the 330173 series, using an M8 × 1 mounting thread and an unarmored construction.
This configuration is identified by a 0.0 mm unthreaded-length option, 70 mm overall case length, 1.0 m total cable length, and miniature coaxial ClickLoc connector with standard cable. The final 00 represents the standard agency-approval configuration. The 3300 5 mm system is intended to work as a complete transducer arrangement with a compatible extension cable and Proximitor sensor, providing measurements suitable for vibration, shaft position, Keyphasor, and speed-monitoring applications.
The 70 mm case gives this version a longer probe body than the 40 mm, 50 mm, and 60 mm configurations in the same family. That makes the exact mechanical configuration especially important when selecting it for an existing installation or specifying it as a maintenance spare.
Technical Specifications
The complete ordering number defines the probe's mechanical dimensions, cable arrangement, connector, and approval configuration. For this model, 330173 identifies the M8 × 1, unarmored 3300 5 mm probe family, while the remaining code determines the particular configuration.
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model | 330173-00-07-10-02-00 |
| Product Type | 3300 5 mm Proximity Probe |
| Sensing Principle | Eddy-current, non-contact |
| Probe Family | 3300 5 mm |
| Base Configuration | 330173 |
| Mounting Thread | M8 × 1 |
| Construction | Without armor |
| Unthreaded Length Option | 0.0 mm |
| Overall Case Length | 70 mm (2.76 in) |
| Total Cable Length | 1.0 m (3.3 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 | Polyphenylene sulfide (PPS) |
| Probe Case Material | Stainless steel |
| Probe Temperature Range | -35°C to +177°C (-31°F to +351°F) |
| Minimum Cable Bend Radius | 25.4 mm (1.0 in) |
| Typical Probe Weight | Approximately 323 g |
| Agency Approval Option | 00 — Not required |
Applications
Steam and Gas Turbine Monitoring
The probe can be incorporated into appropriate turbine monitoring arrangements to measure shaft movement and position. Continuous proximity measurements provide useful information for machinery protection and condition assessment.
Compressor Rotor Monitoring
Compressors require stable rotor operation, and changes in shaft displacement can indicate developing mechanical conditions. The 3300 5 mm system provides a proven non-contact measurement approach for compatible installations.
Pumps and Motors
The probe is suitable for appropriate pump and motor applications where shaft vibration or position needs to be observed continuously. Its metric mounting thread can be convenient in equipment using M8 hardware.
Generator Monitoring
Generators and other large rotating machines can use proximity probes as part of a broader shaft-vibration and position-monitoring system.
Fluid-Film Bearing Machines
The 3300 5 mm platform is particularly useful for machinery using fluid-film bearings. A correctly configured system can measure both static shaft position and dynamic vibration.
Keyphasor and Speed Measurement
The 3300 5 mm transducer system can also be used for suitable Keyphasor and speed-measurement applications, expanding its role beyond conventional vibration monitoring.
Industrial Machinery Maintenance
For maintenance departments supporting existing 3300 systems, an exact probe configuration can simplify replacement work. Matching the 70 mm body length, M8 × 1 thread, 1.0 m cable, and ClickLoc connector helps avoid unnecessary changes to the original installation.
Advantages
Extended 70 mm Probe Body
The 70 mm case length gives this model greater body length than shorter 330173 configurations. This can be advantageous when the machine's probe mounting arrangement requires a longer physical configuration.
M8 × 1 Metric Mounting
The metric M8 × 1 thread makes the 330173 series suitable for compatible metric mounting arrangements. It also clearly differentiates this probe from the 1/4-28 UNF threaded 330171 and 330172 families.
Compact 5 mm Sensing Tip
The approximately 5.2 mm probe tip provides a compact sensing interface for installations where available space around the shaft is restricted.
Non-Contact Measurement
Eddy-current sensing allows the probe to monitor a conductive target without physically contacting the rotating shaft. This supports continuous measurement while avoiding mechanical wear at the sensing interface.
Standard 1-Meter Cable
The integrated 1.0-meter cable provides a practical cable length for many installations and helps keep routing manageable when the monitoring electronics are located relatively close to the probe.
ClickLoc Connector
The miniature coaxial ClickLoc connector provides a compact connection to compatible 3300 transducer-system components.
Robust Industrial Construction
The 3300 5 mm probe uses a PPS sensing tip and stainless-steel case construction, providing a durable package for industrial rotating-equipment applications.
Exact Configuration Matters
For replacement projects, the real advantage is the ability to specify the probe by its complete part number rather than simply ordering a generic 5 mm proximity probe. Case length, cable type, connector, thread, and approval configuration all influence compatibility.
Technical FAQs
1. What is the Bently Nevada 330173-00-07-10-02-00?
It is a 3300 5 mm proximity probe with an M8 × 1 mounting thread, unarmored construction, 70 mm case length, 1.0-meter cable, miniature coaxial ClickLoc connector, and standard 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.
3. What does the first “00” specify?
The first 00 identifies the 0.0 mm unthreaded-length option.
4. What does “07” mean?
The 07 identifies the 70 mm overall case-length option, approximately 2.76 inches. This is the main dimensional characteristic distinguishing this model from shorter 330173 configurations.
5. How long is the cable?
The probe has a 1.0-meter (3.3-foot) total cable length.
6. What connector does the probe use?
The 02 configuration uses a miniature coaxial ClickLoc connector with standard cable.
7. Is this probe armored?
No. The 330173 family is the M8 × 1 configuration without armor. The related 330174 family is used for M8 × 1 probes with armor.
8. What is the probe tip diameter?
The 3300 5 mm probe has a nominal 5.2 mm (0.21-inch) tip diameter.
9. What is the approximate weight?
The commonly specified probe component weight is approximately 323 g (0.323 kg / 11.4 oz). Packaged or shipping weight can be considerably different.
10. Can it replace a shorter 330173 probe?
Not simply because both probes belong to the 3300 5 mm family. The 70 mm case length, mounting thread, unthreaded section, cable length, connector configuration, and approval requirements should be compared with the existing probe. Mechanical geometry is particularly important when replacing a probe already installed near a rotating shaft.
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