Product Overview

The 330703-000-080-10-02-00 is a specialized Narrow Side View (NSv) displacement transducer belonging to the Bently Nevada 3300 XL series. This non-contacting sensor is specifically engineered to overcome the physical limitations of standard 5 mm and 8 mm proximity probes. The NSv system is designed for machinery with restricted mounting clearances or very small shaft diameters where side-view interference from surrounding metal would typically distort measurement accuracy. By utilizing a high-precision eddy current coil, this probe delivers stable radial vibration and axial position data, ensuring critical asset protection in space-constrained industrial environments.

Technical Performance and Design

The 330703 series utilizes advanced materials and engineering to maintain signal integrity in harsh conditions:

• Restricted Clearance Optimization: The NSv design allows for accurate monitoring of shafts as small as 51 mm (2 inches) and provides excellent performance near counterbore walls and other metal obstructions.

• Hermetic Sealing: The sensing tip is constructed from Polyphenylene Sulfide (PPS), a high-performance thermoplastic that is chemically bonded to the stainless steel probe body (TipLoc technology) to prevent oil and moisture ingress.

• Mechanical Strength: Features the CableLoc design, which provides up to 220 N (50 lb) of pull strength between the cable and the probe head, ensuring durability during installation and operation.

• Corrosion Resistance: Gold-plated ClickLoc coaxial connectors ensure a low-impedance connection that resists oxidation and maintains signal clarity over long service intervals.

Hardware Configuration

• Thread Specification: 3/8-24 UNF

• Unthreaded Length: 0.0 inches (Fully threaded)

• Total Case Length: 8.0 inches

• Cable Length: 1.0 Meter (approx. 3.3 feet)

• Connector Option: Miniature coaxial ClickLoc with connector protector

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

• Linear Range: 1.5 mm (60 mils) when integrated with a matching 3300 NSv Proximitor

Industrial Applications

The 330703-000-080-10-02-00 is frequently deployed as part of Turbine Supervisory Instrumentation (TSI) for:

• Small Centrifugal Compressors: Monitoring rotor dynamic stability and vibration in tight housings.

• High-Speed Pumps: Tracking axial thrust bearing wear where mounting ports are too narrow for standard sensors.

• Auxiliary Turbomachinery: Providing reliable position and vibration data for support equipment in power plants and refineries.

• Retrofit Projects: Replacing legacy transducer systems in older machinery with unconventional sensor port geometries.