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Bently Nevada 330910-03-20-05-11-00 3300 NSv Proximity Probe

The Bently Nevada 330910-03-20-05-11-00, also cataloged as the 330910 3300 NSv Proximity Probe, operates as a dedicated hardware component for non-contact shaft displacement measurement within Bently Nevada TSI monitoring systems. It provides eddy-current sensing through an M10 x 1 threaded probe body with a 0.5 meter cable assembly.

Hardware Specifications

Parameter	Specification
Model	330910-03-20-05-11-00
Brand	Bently Nevada
Product Series	3300 NSv Proximity Probe
Product Type	Eddy-current Proximity Probe
Origin	USA
Weight	0.14 kg
Dimensions	Estimated shipping size: 109 x 2 x 1.5 cm
Thread Type	M10 x 1 thread
Armor Option	Armored probe construction
Unthreaded Length	30 mm
Overall Case Length	200 mm
Total Length	0.5 meter (20 in)
Connector Type	Miniature coaxial ClickLoc connector with connector protector
Cable Type	FluidLoc cable
Power Consumption	Supplied by compatible Proximitor sensor interface; probe passive sensing element

Eddy-Current Probe Scaling and Rotor Dynamics Monitoring

The 3300 NSv Proximity Probe uses eddy-current measurement technology to detect shaft displacement through electromagnetic field variation between the probe tip and the rotating target surface. The probe output supports vibration and position monitoring functions when connected to a compatible Bently Nevada Proximitor system.

The probe geometry maintains measurement consistency for small installation spaces. In addition, the M10 x 1 threaded design allows mechanical integration into applications requiring compact probe mounting. The FluidLoc cable construction reduces fluid migration through the cable assembly during field operation.

For TSI applications, the probe signal path supports rotor dynamics analysis by providing displacement data used for vibration evaluation, axial position monitoring, and machine protection logic. Furthermore, proper gap voltage validation, typically targeting -10 VDC in Bently Nevada eddy-current systems, confirms correct probe installation and measurement range.

Frequently Asked Questions

Q: What type of measurement signal does the 330910-03-20-05-11-00 provide?
A: The probe provides eddy-current displacement sensing output. The electrical signal requires processing through a compatible Bently Nevada Proximitor interface.

Q: Does this probe include an integrated signal conditioner?
A: No. The 330910 series probe functions as the sensing element only. Signal conditioning is performed by the associated Proximitor electronics.

Q: What installation factors affect measurement accuracy?
A: Probe gap setting, target surface condition, mechanical alignment, cable routing, and correct shielding practices affect measurement performance.

Field Installation Guidelines

Install the probe with the specified M10 x 1 mounting interface and maintain proper mechanical alignment with the monitored shaft surface.

Route the FluidLoc cable away from high-current power cables and strong electromagnetic interference sources. Maintain cable protection during installation to prevent mechanical damage and excessive bending.

Connect the miniature coaxial ClickLoc connector securely with the connector protector installed where required. Verify probe gap voltage after installation to confirm correct operating position before commissioning the monitoring channel.

Use proper grounding and shielding practices according to the connected Bently Nevada monitoring system installation requirements. Avoid modifying the probe cable length or connector assembly because changes can affect calibration characteristics.

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