Product Overview

The 330902-00-10-10-02-05 is a specialized Narrow Side View (NSv) eddy current proximity probe developed by Bently Nevada for high-precision machinery monitoring. This sensor is specifically engineered to overcome the physical and electromagnetic limitations of standard 8 mm probes. It excels in environments where extremely tight counterbores, side-view clearances, or rear-view restrictions exist. By converting the gap between the probe tip and a conductive target into a linear voltage signal, it provides critical data for radial vibration and axial position monitoring in high-speed rotating assets.

Technical Configuration

The specific model 330902-00-10-10-02-05 follows a mechanical profile designed for versatile industrial integration:

• Model Series: 330902 (1/4-28 UNF thread with Stainless Steel Armor)

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

• Overall Case Length: 1.0 inch

• Total System Length: 1.0 Meter (approx. 3.3 feet)

• Connector Type: Miniature coaxial ClickLoc connector (02 option)

• Agency Approvals: Multi-certified for hazardous areas including ATEX, IECEx, and CSA (05 option)

• Linear Range: 1.5 mm (60 mils)

• Calibration Target: Standard AISI 4140 steel

Engineering for Restricted Spaces

The 3300 NSv series is optimized for applications where standard transducer systems cannot provide reliable measurements:

• Small Target Precision: The sensor is specifically designed to monitor radial vibration on shafts with diameters smaller than 51 mm (2 inches) and axial position on flat targets as small as 15 mm (0.6 inches).

• Side-View Interference Shielding: The internal coil and probe tip are uniquely shielded to ignore surrounding conductive material, allowing for accurate measurements in cramped machine housings or deep counterbores.

• Stainless Steel Armor: The FEP-insulated coaxial lead is encased in flexible 304 stainless steel armor, protecting the signal path from mechanical abrasion, crushing, and harsh process fluids.

• Hermetic Integrity: Utilizing the patented TipLoc process, the probe tip is molecularly bonded to the stainless steel body to prevent oil and moisture wicking into the sensing coil.

Industrial Applications and Integration

As a core element of Turbine Supervisory Instrumentation (TSI), this transducer provides dependable data for machinery protection systems:

• Asset Monitoring: Ideal for centrifugal compressors, refrigeration units, high-speed pumps, and small-bore aeroderivative gas turbines.

• Diagnostic Versatility: Supports radial shaft vibration measurement, thrust position monitoring, and phase reference (Keyphasor) signal generation.

• System Interchangeability: Probes, extension cables, and 3300 NSv Proximitor sensors of the same system length are fully interchangeable without the need for manual bench recalibration.

• Rugged Connectivity: The gold-plated ClickLoc connector provides a secure, vibration-proof electrical path, ensuring signal stability in high-RFI industrial environments.