Product Overview

The 330102-00-12-90-02-05 is a specialized eddy current proximity transducer designed by Bently Nevada for the 3300 XL monitoring ecosystem. This 8 mm probe facilitates non-contacting displacement measurements, converting the physical distance between its sensor tip and a conductive target—typically a rotating shaft—into a linear voltage signal. This specific 9-meter configuration is engineered for long-distance routing in large-scale industrial machinery. Built with a 3/8-24 UNF threaded body and integrated stainless steel flexible armor, it provides the mechanical resilience required for Turbine Supervisory Instrumentation (TSI) in demanding environments.

Technical Specification Profile

The alphanumeric configuration of the 330102-00-12-90-02-05 indicates the following hardware attributes:

• Model Identification: 330102 (3/8-24 UNF Thread with Protective Armor)

• Unthreaded Body Length: 0.0 inches (Fully threaded case)

• Total Case Length: 1.2 inches

• System Length: 9.0 Meters (approx. 29.5 feet)

• Interface: Miniature coaxial ClickLoc connector

• Hazardous Area Ratings: ATEX, IECEx, and CSA certified for explosive atmospheres

• Linear Measurement Range: 2.0 mm (80 mils)

• Standard Scale Factor: 7.87 V/mm (200 mV/mil)

• Thermal Range: Stable operation from -51 °C to +177 °C

Patented Durability and Design

The 330102-00-12-90-02-05 utilizes advanced Bently Nevada engineering to maximize service life and signal integrity:

• TipLoc Technology: A proprietary molding method that chemically bonds the probe tip to the stainless steel body, ensuring the assembly survives extreme thermal cycling without delamination.

• CableLoc Mechanism: A patented internal anchoring system that provides a minimum pull strength of 330 N (75 lbf), shielding the electrical connection from mechanical strain.

• Coil Protection: The sensing coil is encapsulated in high-grade Polyphenylene Sulfide (PPS) plastic, offering superior resistance to chemical erosion, moisture, and impact damage.

• Armored Shielding: The FEP-insulated coaxial lead is encased in a 304 stainless steel flexible armor, preventing damage from debris, maintenance tools, or sharp edges during installation.

Functional Applications

This armored proximity probe is a critical sensor for condition monitoring and machinery protection, primarily used in:

• Vibration Analysis: Measuring radial vibration in fluid-film bearing machines like steam turbines and centrifugal compressors.

• Thrust Monitoring: Tracking axial shaft position to prevent catastrophic contact between the rotor and stator.

• Phase Reference: Serving as a Keyphasor sensor to provide timing and speed data for diagnostic software.

• Retrofit Compatibility: Fully backward compatible with legacy 3300 series hardware while offering modern RFI/EMI immunity.

• Field Calibration: Designed for "plug-and-play" interchangeability; probes and sensors can be replaced without the need for manual bench calibration.