Product Overview

The Bently Nevada 330901-11-25-10-01-00 is a high-precision Narrow Side View (NSv) proximity transducer designed for specialized industrial displacement and vibration monitoring. This probe is specifically engineered for environments where standard 8mm sensors cannot be utilized due to restricted mounting clearances or small target diameters. By utilizing eddy current technology, the NSv probe provides non-contacting measurements with a reduced side-view sensitivity, ensuring that nearby metal objects do not distort the signal. As a vital element of Turbine Supervisory Instrumentation (TSI), this module delivers reliable, high-resolution data to monitoring systems, facilitating the protection of critical rotating assets in the energy and manufacturing sectors.

Engineering Specifications and Hardware Metrics

• Transducer Type: 3300 XL NSv (Narrow Side View)

• Thread Geometry: 3/8-24 UNF-2A (Standard)

• Unthreaded Length: 1.1 inches

• Overall Case Length: 2.5 inches

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

• Lead Protection: Integrated stainless steel armor for high-durability mechanical shielding

• Connector Type: Miniature coaxial ClickLoc (gold-plated contacts)

• Linear Range: 1.5 mm (60 mils)

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

• Construction: Patented TipLoc molding for superior tip-to-body bonding integrity

Strategic Industrial Utility

This NSv proximity probe is the primary solution for monitoring vibration and axial position in machinery with tight spatial constraints, such as small-bore process compressors, high-speed centrifugal pumps, and auxiliary steam turbines. Its unique design is particularly effective for tracking the movement of small target areas, including the shoulders of narrow shafts or the faces of small thrust collars. The 330901-11-25-10-01-00 is highly resistant to chemical exposure and thermal fluctuations, making it ideal for the aggressive environments of oil refineries and power plants. When integrated with Bently Nevada 3500 series monitoring racks, it provides the deterministic timing and displacement signals required for advanced predictive maintenance and automated machinery safety shutdowns.