Product Overview

The 330106-05-30-90-02-05 is a specialized reverse mount proximity transducer from the Bently Nevada 3300 XL series. Unlike standard probes, the reverse mount configuration is designed for installation from the inside of a machine housing or via specialized mounting brackets where the sensor tip faces back toward the mounting surface. This 8 mm eddy-current sensor is a primary component for Turbine Supervisory Instrumentation (TSI), converting the gap between the probe tip and a rotating shaft into an accurate voltage signal. It provides high-resolution monitoring for dynamic vibration and static displacement, ensuring that critical machinery remains within safe operational limits.

Definitive Technical Attributes

• Model Number: 330106-05-30-90-02-05

• Sensing Diameter: 8 mm

• Mounting Configuration: Reverse Mount

• Thread Specification: M10 x 1 (Metric)

• Unthreaded Length: 0.5 inches

• Case Length: 3.0 inches

• Total Length: 9.0 meters (System length calibration)

• Connector Type: Miniature gold-plated ClickLoc coaxial

• Cable Protection: Standard unarmored lead

• Agency Approval: Multiple international hazardous area certifications (Option 05)

• Net Weight: 0.06 kg

• Standard Shipping Size: 1.8 x 1.6 x 123 cm

Industrial Implementation and Utility

The reverse mount design of the 330106-05-30-90-02-05 is specifically utilized in applications with extreme space constraints or where external access to the probe gapping is limited. It is frequently deployed on high-speed centrifugal compressors, industrial gas turbines, and specialized gearboxes. By monitoring radial vibration, it detects rotor unbalance and bearing wear, while its axial thrust sensing capabilities protect against catastrophic internal contact. Additionally, this probe serves as a high-fidelity Keyphasor sensor, providing the essential once-per-revolution pulse needed for phase analysis and speed tracking on fluid-film bearing machines.

FAQ

Q: What is the primary benefit of a reverse mount probe like the 330106 series?

A: Reverse mount probes are essential when there is no room to thread a probe in from the outside of the machine. They are installed into a bracket or housing internally, which is often necessary in compact bearing designs or when using a probe housing assembly.

Q: Is this 9.0-meter probe compatible with a 5.0-meter Proximitor sensor?

A: No. The "90" in the model number indicates this probe is electrically calibrated for a 9.0-meter system. It must be paired with a 3300 XL Proximitor sensor specifically configured for a 9.0-meter total length to maintain measurement accuracy.

Q: Does the ClickLoc connector require any special tools for installation?

A: No, the ClickLoc coaxial connector is designed for finger-tightening. The gold-plated interface provides a secure, low-resistance connection that resists vibration and moisture ingress without the need for wrenches.

: Can I use this probe in explosive environments?

A: Yes, the "05" option indicates that the probe carries multiple international safety approvals, including ATEX, IECEx, and CSA, making it suitable for deployment in hazardous areas when used with the correct intrinsic safety barriers.

Q: What is the target material for the factory calibration?

A: This probe is factory-calibrated for an AISI 4140 steel target. If your shaft or target is a different alloy, the system linearity and scale factor will change, which may require a custom calibration.