330103-02-12-05-02-05 Bently Nevada 8mm Eddy Current Proximity Sensor

Product Overview

The Bently Nevada 330103-02-12-05-02-05 belongs to the industry-standard 3300 XL 8mm Proximity Transducer System family. This high-reliability industrial sensor tracks the physical gap between the unarmored probe tip and a rotating shaft to provide precise, non-contact measurement data.

Functional and Structural Operation

This transducer translates mechanical clearances into dynamic analog voltage signals, which allows facility monitoring infrastructure to supervise equipment health in real time. Because the design reads displacement without physical contact, it completely eliminates components that cause mechanical wear or operational friction. Maintenance personnel implement this sensor to capture vital radial shaft vibration, axial thrust position, and speed or Keyphasor references.

Industrial operators install this probe extensively within critical machinery protection loops (TSI systems) across high-stress environments. Specific machine applications include:

• Large utility steam, gas, and hydro turbines
• High-pressure centrifugal process compressors and multi-stage boiler feed pumps
• High-power industrial electric motors and generators
• Industrial centrifuges and heavy reciprocating machinery

The unarmored probe body relies on an M10x1 metric thread configuration that allows tight internal spacing or bracket configurations. Furthermore, the specialized polyphenylene sulfide (PPS) tip molding material chemically isolates the internal coil from harsh lubricants, moisture, or corrosive industrial vapors. Because all components in the 3300 XL series feature built-in interchangeability, field technicians can hot-swap probes, extension cables, and Proximitor sensors without completing time-consuming bench calibrations.

Part Number Code Breakdown

The designated nomenclature sequence 330103-02-12-05-02-05 maps to exact physical dimensions, structural options, and hazardous area approvals:

• Unthreaded Length (-02): Configured with an unthreaded body section of 20 mm.
• Overall Case Length (-12): Provides a 120 mm total threaded case length to clear deep machine housings.
• Total Length (-05): Standardizes on a 0.5-meter (1.6 feet) integrated coaxial lead cable.
• Connector and Cable Type (-02): Features a miniature coaxial ClickLoc connector attached to a standard cable.
• Agency Approval (-05): Includes comprehensive hazardous area certifications (CSA, ATEX, and IECEx approvals).

Technical Specifications