Product Overview

The 330103-06-15-10-12-CN is a high-precision eddy current proximity probe belonging to the Bently Nevada 3300 XL 8 mm series. This metric-threaded sensor is engineered for non-contacting displacement measurements, providing a linear voltage output that corresponds to the gap between the probe tip and a conductive target. As a primary component of Turbine Supervisory Instrumentation (TSI), it is essential for monitoring radial vibration, axial thrust, and shaft position in high-speed rotating assets. This specific variant features a FluidLoc cable design to prevent oil or moisture from wicking through the probe, ensuring high-fidelity signal transmission in contaminated industrial environments.

Technical Configuration and Hardware Specs

The alphanumeric designation 330103-06-15-10-12-CN defines the following specific build parameters:

• Model Number: 330103 (M10 x 1 Metric Thread with Armor)

• Unthreaded Length: 60 mm (06 option)

• Overall Case Length: 150 mm (15 option)

• Total Length: 1.0 Meter / 3.3 Feet (10 option)

• Connector Type: Miniature coaxial ClickLoc connector with Connector Protector (12 option)

• Agency Approval: CN (Ex-rated/China specific hazardous area approval)

• Thread Pitch: M10 x 1

• Cable Type: FluidLoc lead with stainless steel armor

• Operating Temperature: -51 °C to +177 °C (-60 °F to +351 °F)

Performance and Durability Features

The 330103-06-15-10-12-CN is designed to thrive in the demanding conditions of gas and steam turbines. The probe tip is manufactured from high-performance Polyphenylene Sulfide (PPS) plastic, which is hermetically overmolded to the sensing coil to resist chemical degradation. The ClickLoc connector system provides a gold-plated, vibration-resistant electrical interface, while the integrated stainless steel armor protects the coaxial cable from mechanical abrasion and accidental severing during machine maintenance. Furthermore, this system is factory-calibrated for AISI 4140 steel, maintaining a standard scale factor of 7.87 V/mm (200 mV/mil).

Industrial Applications and System Integration

This 8 mm proximity transducer is a foundational tool for predictive maintenance and machinery protection.

• Shaft Monitoring: Ideal for measuring radial vibration in fluid-film bearing machines and identifying shaft eccentricity.

• Position Sensing: Used for axial thrust measurements to prevent catastrophic rotor-to-stator contact.

• Speed Reference: Functions as a Keyphasor sensor for phase angle detection and RPM measurements.

• Integration: Fully compatible with 3300 XL Proximitor sensors and extension cables. It also maintains backward compatibility with legacy 3300 series 5 mm and 8 mm systems, allowing for seamless facility-wide upgrades.