Bently Nevada 330901-17-24-10-02-CN 3300 NSv Proximity Probe

Description

For critical machinery environments requiring high-resolution proximity measurements in tight spaces, the Bently Nevada 330901-17-24-10-02-CN provides robust eddy-current transduction. This unarmored probe operates as a primary component of the 3300 NSv system, specifically calibrated to measure shaft vibration, radial position, and axial thrust where target areas are smaller than standard 8mm probe limits. Utilizing a 1/4-28 UNF threaded casing constructed of AISI 304 stainless steel, it guarantees high structural integrity and mechanical resistance against environmental degradation, while the polyphenylene sulfide (PPS) tip protects the internal coil from chemical and thermal exposure.

Features

• Designed for restricted spaces and targets down to 9.5 mm (0.375 inches) in diameter.
• Robust polyphenylene sulfide (PPS) probe tip ensures mechanical stability and chemical inertness.
• Corrosion-resistant AISI 304 stainless steel case offers durability in harsh industrial operating conditions.
• Miniature coaxial ClickLoc connector provides reliable signal transmission and robust physical connection without signal loss.
• Unarmored cable design allows flexible routing and installation in narrow conduit configurations.

Applications

• Fluid-film bearing machinery displacement monitoring.
• High-speed centrifugal compressors and turbopumps.
• Small steam turbines and radial expanders with tight clearance profiles.
• Industrial machinery with narrow counterbore or side-clearance restrictions.

Ordering Information

Technical Specifications Table

Connections and Interfaces

Empirical Engineering Insights

Alternative Models & Compatibility

The 3300 NSv (Narrow System) probe has a different frequency calibration profile than standard 3300 XL 5mm or 8mm transducers. It must be paired exclusively with a 3300 NSv Proximitor Sensor (Part Number 330900). Connecting this probe to a non-NSv Proximitor will result in major calibration scaling errors and invalid voltage outputs. Keep in mind that 3300 NSv systems are designed to operate over smaller linear ranges (typically 1.0 mm or 40 mils) compared to standard 8mm systems.

Application Pitfalls & Engineering Notes

Because the 3300 NSv is optimized for restricted geometries, the target diameter must be at least 9.5 mm (0.375 inches) to achieve linear voltage output. If the probe is installed against smaller targets or close to side walls, ensure the mechanical clearance is at least equal to the probe tip diameter to prevent side-wall interference (cross-talk) or severe calibration drift. Thermal expansion of the AISI 304 probe body must also be calculated in high-temperature environments to avoid mechanical zero-drift.

Commissioning & Wiring Tips

Cleanliness of the ClickLoc connector during installation is critical. Microscopic oil films or moisture on the connector contacts can degrade the high-frequency RF path, manifesting as high-frequency noise or "spikes" in the vibration monitor. Use a non-residue contact cleaner and seal the connection with self-vulcanizing tape or a connector protector kit if the joint is located inside an oil-mist environment.

Installation Guidelines