330909-00-99-10-02-00 3300 NSv Proximity Probes | Bently Nevada

Configured for high-frequency displacement measurement in rotating machinery protection networks, the Bently Nevada 330909-00-99-10-02-00 (330909-00-99-10-02-00 3300 NSv Proximity Probes) provides direct physical signal acquisition via electromagnetic induction for rotor position monitoring.

Suffix Breakdown & Model Matrix

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics

The 330909-00-99-10-02-00 functions as an inductive sensor requiring integration with a matched 3300 NSv Proximitor. To maintain a linear output of 7.87 V/mm (200 mV/mil), the probe must be adjusted to a static gap voltage of -10 VDC at the mechanical center of its 1.0 mm linear range. This setup is necessary for the accurate capture of rotor dynamic phenomena, including radial vibration and shaft centerline position. Proper installation techniques, including cross-talk suppression by maintaining adequate physical separation from adjacent probes, are required to prevent signal distortion caused by overlapping electromagnetic fields.

Frequently Asked Questions

Q: Can the ClickLoc connector withstand high-vibration machine environments?

A: The ClickLoc connector is designed for secure retention in vibrating environments; however, it must be fully seated and protected by the included armor to prevent cable strain or contact degradation.

Q: Is field recalibration of the sensor system possible after installation?

A: Recalibration requires matching the probe with the specific Proximitor Sensor and extension cable impedance. Modifications to cable lengths or improper gap settings will invalidate the system linearity.

Field Installation Guidelines

1. Thread Engagement: Ensure the 3/8-24 UNF threads are clean. Verify that the probe tip does not make mechanical contact with the target at maximum machine thermal expansion.
2. Gap Validation: Adjust the probe until the output voltage from the Proximitor equals -10 VDC at the target center. Secure the position with the included jam nut.
3. Shielding: Maintain electrical continuity of the coaxial shield to the instrument ground to prevent electromagnetic noise injection into the sensing loop.
4. Cable Protection: Route the coaxial cable through protective conduit. Avoid bending the cable below the manufacturer-specified minimum bend radius to prevent inner conductor fracture.