330103-00-04-20-02-05 Bently Nevada 8 mm Proximity Probe

The Bently Nevada 330103-00-04-20-02-05 is an 8 mm proximity probe designed to measure the position and vibration of conductive targets without physical contact. When paired with a compatible extension cable and Proximitor Sensor, it forms part of an eddy-current measurement chain for static position and dynamic vibration monitoring of fluid-film-bearing machinery. This model features a 2 m probe length, an M10 x 1 mounting thread and a forward-mount configuration.

Probe Design and Measurement Function

The probe uses eddy-current sensing to detect changes in the distance between its tip and a conductive target. The Proximitor Sensor processes the probe signal to provide measurements of shaft position and dynamic vibration.

Furthermore, the complete measurement chain requires a compatible probe, extension cable and Proximitor Sensor. Calibration and installation conditions must match the specified system configuration to maintain measurement accuracy.

Mechanical and Connection Configuration

This model has an M10 x 1 case thread and a forward-mount design. Its case has a 0 mm unthreaded length and a 40 mm overall length. The total probe length is 2 m.

The standard cable configuration does not include a connector protector. In addition, the probe uses an AISI 303 or 304 stainless steel case and a polyphenylene sulfide (PPS) probe tip.

Technical Specifications

Configuration and Selection Notes

When replacing an existing probe, verify the complete part number rather than selecting by the 8 mm probe diameter alone. Thread dimensions, mounting arrangement, cable configuration and approval requirements all affect replacement selection.

For example, the absence of a connector protector and armor represents specific mechanical configuration choices. Therefore, confirm these details against the installed measurement chain before ordering. The CSA, ATEX and IECEx approval option should also be checked against the certificates supplied with the actual unit.

Frequently Asked Questions

Q: What does the Bently Nevada 330103-00-04-20-02-05 measure?

A: It measures the distance between the probe tip and a conductive target without physical contact. With a compatible Proximitor Sensor and extension cable, the measurement chain supports shaft position and vibration monitoring.

Q: What mounting configuration does this probe use?

A: This model uses forward mounting with an M10 x 1 case thread. It has a 0 mm unthreaded length and a 40 mm overall case length.

Q: What should I check before ordering a replacement?

A: Verify the complete model number, mounting thread, probe length, cable configuration and required agency approvals. Furthermore, confirm compatibility with the installed extension cable and Proximitor Sensor, including the required calibration.