Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330905-00-05-10-02-00 |
| Brand | Bently Nevada |
| Product Type | Eddy Current Proximity Probes |
| Series | 3300 NSv Transducer System |
| Origin | USA |
| Dimensions | 50 mm probe case length, 1.0 m total cable length |
| Operating Temp | -51 deg C to +177 deg C |
| Power Consumption | Supplied through compatible 3300 NSv Proximitor system |
| Thread Type | M10 x 1.0 metric fine thread |
| Unthreaded Case Length | 0 mm |
| Probe Body Material | AISI 304 stainless steel |
| Cable Type | 75 ohm coaxial FEP insulated cable |
| Connector Type | Miniature coaxial ClickLoc connector |
| Measurement Technology | Eddy current non-contact displacement sensing |
| Scale Factor | 7.87 V/mm nominal (200 mV/mil) |
| Linear Range | 0.25 mm to 1.25 mm |
| Standard Target Material | AISI 4140 steel |
| Application Clearance | Restricted-space installations and small diameter shafts less than 51 mm |
Eddy Current Probe Scaling and Rotor Dynamics Monitoring
The 330905-00-05-10-02-00 uses eddy-current probe scaling characteristics to convert shaft displacement changes into proportional electrical signals. The complete 3300 NSv transducer system provides a nominal scale factor of 7.87 V/mm for dynamic vibration and position measurements.
Furthermore, the probe supports rotor dynamics analysis by measuring shaft motion without physical contact. The M10 x 1.0 threaded body and narrow side-view design allow installation in locations with limited radial clearance, including counterbored mounting points and small shaft applications.
The system requires correct gap voltage validation during commissioning. Technicians normally verify probe operating position through the Proximitor output signal, with a typical target near -10 VDC gap voltage for Bently Nevada eddy-current systems.
Frequently Asked Questions
Q: What type of measurement does the Bently Nevada 330905-00-05-10-02-00 provide?
A: The probe provides non-contact measurement of shaft displacement, vibration, and position through an eddy-current sensing circuit.
Q: Can this probe operate as a standalone measurement device?
A: No. The probe requires a compatible Bently Nevada 3300 NSv Proximitor system to generate and process the measurement signal.
Q: What installation conditions are suitable for this probe model?
A: The probe is designed for restricted-space installations, small shaft measurements, and locations where side clearance limits standard probe installation.
Field Installation Guidelines
Install the probe with the specified M10 x 1.0 thread engagement and maintain mechanical alignment with the rotating target surface.
Verify that the probe tip faces the measurement target without physical contact during operation. Use the recommended AISI 4140 steel target material or an equivalent calibrated surface to maintain measurement accuracy.
Route the coaxial cable away from high-current power conductors and strong electromagnetic interference sources. Avoid sharp cable bends and mechanical stress near the miniature ClickLoc connector.
During commissioning, check the Proximitor output voltage to confirm correct probe gap positioning. Validate the gap voltage before collecting vibration or position data from the rotating machine.
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