Product Overview

The Bently Nevada 330904-00-10-05-02-05 is a precision eddy current sensor belonging to the 3300 NSv (Narrow Side-view) series. This transducer is specifically engineered for machinery with restricted clearances or small shaft diameters where standard proximity probes might experience "side-view" interference from surrounding metal. It provides non-contacting, high-resolution measurements of both static position and dynamic vibration. By detecting the gap between the probe tip and a conductive target, it enables critical monitoring of rotor health in high-speed, compact industrial assets.

Key Technical Characteristics and Hardware Parameters

The 3300 NSv system is distinguished by its unique coil design, which focuses the electromagnetic field to minimize the required target size and side-clearance area.

• Model Number: 330904-00-10-05-02-05

• Probe Tip Diameter: 5 mm

• Mounting Thread: 1/4-28 UNF (Unarmored)

• Unthreaded Length: 0.0 inches (Option -00)

• Overall Case Length: 1.0 inch (Option -10)

• Total System Length: 0.5 Meters / 1.6 Feet (Option -05)

• Connector Type: Miniature coaxial ClickLoc with gold-plated brass (Option -02)

• Hazardous Area Approvals: Multiple international certifications including ATEX/IECEx (Option -05)

• Mechanical Integrity: Patented CableLoc provides 220 N (50 lb) of cable pull strength

• Target Material: Calibrated for AISI 4140 steel

Industrial Applications and Operational Use Cases

The NSv series is the industry standard for specialized rotating equipment that demands a smaller probe footprint without sacrificing accuracy.

• Centrifugal Air Compressors: Ideal for small-bore bearing housings where standard 8 mm probes are too large for the available mounting space.

• Refrigeration Compressors: Monitoring radial vibration in units where tight internal clearances require "side-view" immunity.

• Small Pumps and Motors: Providing high-fidelity vibration data for balance-of-plant (BoP) equipment with limited shaft surface area.

• Process Gas Expanders: Accurate axial and radial monitoring in volatile environments requiring the -05 hazardous area certification.

• Radial Vibration and Speed Sensing: Serves dual functions as a vibration transducer or a high-speed Keyphasor/RPM sensor.

The miniature coaxial design combined with gold-plated connectors ensures that signal degradation is minimized, while the unarmored lead provides the flexibility needed for routing through narrow conduits or internal machinery passages.