Bently Nevada 330106-05-30-10-12-00 3300 XL 8 mm Reverse Mount Probe

Product Overview

The 330106-05-30-10-12-00  is a specialized 3300 XL 8 mm Reverse Mount Probe engineered by Bently Nevada for critical machinery protection applications. Unlike standard proximity probes, the reverse mount design is specifically intended for use with probe housings or applications where the probe is installed from the opposite side of the machine casing. This component is essential for monitoring radial vibration and axial position in high-speed turbines, large scale compressors, and industrial pumps. By providing high-fidelity displacement data to the Proximitor sensor, it enables early detection of mechanical wear and shaft instability. In industries such as power generation and oil refining, the reliability of this probe is paramount to avoiding catastrophic asset failure and significantly reducing unscheduled maintenance costs.

Suffix Breakdown

The model number configuration defines the mechanical and electrical interface for specific field requirements:

• 330106: Base model for the 3300 XL 8 mm Reverse Mount Probe (3/8-24 UNF thread).

• 05: Unthreaded Length Option. Specifies 0.5 inches of unthreaded body.

• 30: Overall Case Length Option. Indicates a 3.0 inch total case length.

• 10: Total Length Option. Equipped with a 1.0 meter (3.3 feet) integrated cable.

• 12: Connector and Cable Option. Features a miniature ClickLoc coaxial connector combined with a FluidLoc cable designed to prevent oil or moisture from wicking through the cable.

• 00: Agency Approval Option. No specific hazardous area certifications required for this configuration.

Performance Specifications

Technical FAQs

When should I choose the Reverse Mount version over a standard probe?

Reverse mount probes are used when the installation requires the probe to be inserted through a housing (such as the Bently Nevada 21000 series) or when there is limited clearance for standard front-mount installation.

What is the benefit of the FluidLoc cable option?

The FluidLoc cable (Option 12) is designed with internal seals to prevent oil, coolants, or other process fluids from leaking through the inside of the cable and into the Proximitor sensor or junction box.

Is this probe compatible with standard 3300 XL Proximitor sensors?

Yes, provided the total system length (probe plus extension cable) matches the Proximitor calibration (typically 5.0 or 9.0 meters). This specific probe has a 1.0 meter length, so a 4.0 or 8.0 meter extension cable would be required.

Engineering & Installation Guide

FluidLoc Handling and Cable Integrity

The FluidLoc cable is slightly stiffer than standard coaxial cables due to its sealing properties. During installation, maintain a minimum bend radius of 25.4 mm (1.0 inch). Avoid using pliers on the ClickLoc connector; these are designed for finger-tight connections. A loose connector is the most common cause of "signal spikes" in vibration monitoring systems.

Reverse Mount Installation Torque

When installing the 330106 probe into a housing, ensure the threads are clean and free of debris. Use a small amount of anti-seize compound if the environment is prone to high-temperature oxidation. Torque the probe into the housing to approximately 4.5 N-m (40 in-lb). Over-tightening can damage the internal sensor coil or the thin-wall section of the 8 mm tip.