Description
Product Introduction & Engineering Value
The Bently Nevada 330104-00-06-10-02-00 is an 8 mm eddy-current proximity probe for the 3300 XL transducer system. Its armored M10 × 1 construction, 60 mm case, and 1.0 m integrated cable make the exact mechanical configuration important when replacing an installed probe.
The probe is used with a compatible 3300 XL Proximitor Sensor and extension cable to measure shaft displacement. Depending on the monitoring architecture, that measurement supports radial vibration, shaft position, or reference/speed applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330104-00-06-10-02-00 |
| Product Family | 3300 XL 8 mm Proximity Probe |
| Probe Type | Armored, threaded proximity probe |
| Thread | M10 × 1 |
| Unthreaded Length | 0 mm |
| Overall Case Length | 60 mm |
| Cable Length | 1.0 m / 3.3 ft |
| Connector | Miniature coaxial ClickLoc |
| Cable Type | Standard cable |
| Output Resistance | 50 Ω |
| Agency Approval | Not required |
| Measurement Principle | Eddy-current proximity sensing |
The published product information identifies the probe’s M10 × 1 thread, 60 mm case, 1.0 m cable, miniature coaxial ClickLoc connector, and 50 Ω output resistance.
System characteristics
The 3300 XL 8 mm system provides a noncontact measurement whose output varies with the distance between the probe tip and conductive target. It can therefore be used for both static shaft-position measurements and dynamic vibration measurements.
Field Application & the “Trench” Experience
A compressor train starts showing an unexpected increase in radial vibration on one channel after bearing maintenance. The 3500 monitoring rack is functioning normally, so the technician works backward through the measurement chain.
The installed probe is inspected first. Its cable has been disturbed during maintenance, and the probe identification confirms 330104-00-06-10-02-00. Rather than installing a generic 8 mm probe, the technician checks the complete mechanical configuration, cable length, connector, and probe gap before replacement.
That is the practical advantage of respecting the full Bently Nevada ordering number. The last several digits are not decoration.
Specific application scenarios
- Centrifugal compressor radial vibration monitoring — Measuring shaft motion at fluid-film bearing locations.
- Steam turbine shaft-position monitoring — Providing noncontact displacement measurement for machinery protection.
- Generator bearing monitoring — Supporting radial vibration measurement on critical rotating equipment.
- High-speed pump monitoring — Detecting changes in shaft motion before they develop into a larger machinery problem.
The 3300 XL 8 mm system is intended for vibration and position measurements on rotating machinery, particularly machines using fluid-film bearings.

330104-00-06-10-02-00
Transparency SOP: QA & Testing
For new-surplus or refurbished 330104-00-06-10-02-00 stock, testing should cover more than electrical continuity.
1. Identification check
- Confirm the complete part number.
- Verify the Bently Nevada labeling.
- Record serial/date information where available.
2. Mechanical inspection
- Inspect the M10 × 1 threaded body.
- Check the 60 mm case.
- Inspect the probe tip for dents, scratches, or contamination.
- Inspect the armored cable and ClickLoc connector.
3. Electrical testing
- Perform appropriate continuity/resistance checks.
- Verify connector integrity.
- Check for abnormal electrical behavior.
4. System test
- Connect the probe to compatible 3300 XL hardware.
- Establish the appropriate probe-to-target gap.
- Verify the resulting DC output and dynamic response against an approved test fixture.
5. Final QA
- Record probe identification, test equipment, gap condition, and measured results.
A continuity test alone does not demonstrate correct proximity measurement. The probe should be evaluated as part of the complete transducer system.
The Veteran’s Tech Trap Guide
⚠️ Trap #1 — Ordering by “3300 XL 8 mm” alone.
That description is too broad. The 330104-00-06-10-02-00 configuration specifies the mechanical and cable characteristics. Match the complete number.
PRO TIP: Photograph the original probe label before removing it.
⚠️ Trap #2 — Getting the cable length wrong.
This version has a 1.0 m / 3.3 ft integrated cable. A different cable-length option can complicate an existing installation even when the probe family is otherwise correct.
⚠️ Trap #3 — Ignoring the connector.
The 02 suffix specifies the miniature coaxial ClickLoc connector with standard cable. Do not substitute another connector configuration merely because it is also listed as a 3300 XL 8 mm probe.
⚠️ Trap #4 — Installing without checking the probe gap.
The eddy-current measurement depends directly on the distance between the probe tip and conductive target. Incorrect gap settings can produce misleading vibration or position readings.
⚠️ Trap #5 — Replacing the probe when the real fault is upstream.
Check the extension cable, Proximitor Sensor, field wiring, grounding, and monitor channel before concluding that the probe itself has failed.
Dynamic FAQ
What is Bently Nevada 330104-00-06-10-02-00?
It is a Bently Nevada 3300 XL 8 mm armored proximity probe used for noncontact shaft vibration and position measurement.
What are the mechanical dimensions?
This configuration has an M10 × 1 thread, 0 mm unthreaded length, and 60 mm overall case length.
How long is the cable?
The integrated standard cable is 1.0 meter (3.3 feet).
What connector does it use?
It uses a miniature coaxial ClickLoc connector with the standard cable configuration.
Is this a complete proximity transducer system?
No. The probe works with the compatible 3300 XL Proximitor Sensor and extension cable as part of the complete measurement chain.
What does the probe measure?
The eddy-current system can measure shaft displacement, radial vibration, and shaft position, depending on the application and monitoring configuration.
Can I use a different 3300 XL 8 mm probe?
Possibly, but only after confirming the complete mechanical and electrical configuration. The 3300 XL family provides interchangeability within its specified system architecture, but the replacement still needs to meet the installed application’s mechanical requirements.
Is new-surplus 330104-00-06-10-02-00 acceptable?
Yes, provided the unit is genuinely unused surplus, correctly identified, physically inspected, and electrically/functionally tested. For critical machinery protection, request actual-unit photographs and test documentation.
How should refurbished stock be tested?
At minimum, verify the part number and physical condition, then test it with compatible 3300 XL electronics and a suitable conductive target. The test should demonstrate the expected proximity response rather than merely showing electrical continuity.
What warranty should I request?
Request written coverage for functional failure. For refurbished units, ask whether the supplier tested the complete probe response or only performed a basic resistance/continuity inspection.




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