Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330104-00-08-90-02-05 |
| Brand | Bently Nevada |
| Product Type | 3300 XL 8 mm Proximity Probe |
| Origin | USA |
| Weight | 0.12 kg |
| Dimensions | Estimated shipping size: 32 x 30 x 2 cm |
| Power Consumption | Supplied through compatible 3300 XL Proximity Transducer System, value not specified |
| Thread Type | M10 x 1 thread |
| Probe Diameter | 8 mm |
| Armor Option | Armored probe construction |
| Unthreaded Length | 0 mm |
| Overall Case Length | 80 mm |
| Total Length | 9.0 meters (29.5 feet) |
| Connector Type | Miniature coaxial ClickLoc connector |
| Cable Type | Standard cable |
| Agency Approvals | CSA, ATEX, IECEx |
Eddy-Current Measurement and Rotor Dynamics Monitoring
The 330104-00-08-90-02-05 probe uses an eddy-current sensing principle to measure relative shaft displacement without physical contact. The probe output depends on the electromagnetic field variation between the probe tip and the rotating target surface.
Furthermore, the 3300 XL system applies calibrated eddy-current probe scaling to convert shaft movement into proportional electrical signals. Engineers use these signals for rotor dynamics evaluation, including vibration analysis, shaft position monitoring, and mechanical clearance observation.
The probe installation also requires gap voltage validation. A correctly adjusted probe gap provides the expected negative bias voltage range, and Bently Nevada systems commonly use -10 VDC targets as a reference condition for probe gap verification.
The armored cable construction and miniature coaxial ClickLoc connector reduce installation stress while maintaining signal integrity in rotating machinery monitoring applications. Additionally, the probe design supports cross-talk suppression practices when multiple proximity probes operate within the same measurement area.
Frequently Asked Questions
Q: What measurement principle does the 330104-00-08-90-02-05 use?
A: The probe uses an eddy-current sensing method to detect shaft displacement by measuring changes in the electromagnetic field between the probe tip and the target surface.
Q: What cable configuration does this probe include?
A: This model includes a 9.0 meters (29.5 feet) standard cable with a miniature coaxial ClickLoc connector.
Q: What installation factor affects measurement accuracy?
A: Probe gap adjustment directly affects signal output accuracy. Technicians should verify the electrical gap condition and confirm the expected negative gap voltage during installation.
Field Installation Guidelines
- Install the M10 x 1 threaded probe into the approved mounting location while maintaining correct mechanical alignment with the monitored shaft surface.
- Adjust the probe gap according to the 3300 XL Proximity Transducer System requirements and verify the gap voltage before operation.
- Route the armored cable away from high-current power conductors and strong electromagnetic interference sources.
- Maintain proper cable shielding and grounding practices to reduce electrical noise during low-level displacement signal transmission.
- Avoid sharp cable bends near the miniature coaxial ClickLoc connector to prevent mechanical stress on the connection point.
- Confirm compatibility between the probe, extension cable, and Proximitor sensor before commissioning the measurement loop.
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