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Bently Nevada 330905-00-25-05-01-CN 3300 NSv Proximity Probe

The Bently Nevada 330905-00-25-05-01-CN, also cataloged as the 330905 3300 NSv Proximity Probe, operates as a dedicated hardware component for shaft displacement and vibration measurement within 3300 XL NSv Transducer System installations.

Hardware Specifications

Parameter	Specification
Model	330905-00-25-05-01-CN
Brand	Bently Nevada
Product Type	Proximity Sensors
Series	3300 XL NSv Transducer System
Origin	USA
Dimensions	Case Length: 250 mm; Total Length: 0.5 meter
Operating Temp	-51 deg C to +177 deg C
Storage Temp	-51 deg C to +177 deg C
Thread Type	M10 x 1.0 Fine Thread
Probe Construction	Without Armor
Unthreaded Length	0 mm
Case Material	304 Stainless Steel
Probe Tip Material	Polyphenylene Sulfide (PPS)
Connector Type	Miniature Coaxial ClickLoc Connector with Connector Protector
Measurement Technology	Eddy Current Proximity Sensing
Linear Range	1.5 mm nominal
Average Scale Factor	7.87 V/mm nominal
Target Material	AISI 4140 Steel
Power Consumption	Not specified; supplied through compatible 3300 XL NSv Proximitor system

Eddy-Current Probe Scaling and Rotor Dynamics Measurement

The 330905-00-25-05-01-CN uses eddy-current sensing technology to detect relative shaft motion without mechanical contact. Therefore, the probe provides proportional displacement signals for vibration analysis and axial position monitoring.

The probe maintains a nominal scale factor of 7.87 V/mm, which supports calibrated distance measurement between the probe tip and conductive shaft surfaces. In addition, the 3300 XL NSv design applies side-view immunity characteristics to reduce measurement influence from restricted mounting areas.

Furthermore, the probe supports rotor dynamics evaluation by delivering displacement data required for vibration monitoring systems. The system configuration allows engineers to validate probe gap conditions through standard proximity system gap voltage checks, including typical -10 VDC target settings during installation calibration.

Frequently Asked Questions

Q: What measurement principle does the 330905-00-25-05-01-CN use?
A: The probe uses eddy-current proximity sensing to measure shaft displacement by detecting changes in the electromagnetic field between the probe tip and the conductive target.

Q: Can this probe operate in restricted installation spaces?
A: Yes. The 3300 XL NSv probe design supports installations with limited side clearance, counterbore mounting restrictions, and small target geometry requirements.

Q: What connector configuration does this model provide?
A: This model uses a miniature coaxial ClickLoc connector with a connector protector and standard cable configuration.

Field Installation Guidelines

• Install the probe using the specified M10 x 1.0 mounting thread and maintain proper mechanical alignment with the measured shaft surface.
• Verify the probe tip clearance and target condition before commissioning the proximity measurement loop.
• Connect the miniature coaxial cable according to the applicable 3300 XL NSv system wiring requirements.
• Maintain separation between probe signal cables and high-voltage power conductors to reduce electromagnetic interference.
• Ground cable shielding according to the monitoring system installation practice and avoid creating unintended ground loops.
• Confirm the gap voltage output after installation to verify correct probe positioning and signal scaling.

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