SKU: 330172-16-42-10-01-00

Bently Nevada 330172-16-42-10-01-00 3300 XL NSV Proximity Probe

The Bently Nevada 330172-16-42-10-01-00 is a 3300 XL NSV reverse-mount proximity probe with a 1.0-meter cable. It provides precision vibration monitoring for small shafts and tight-clearance industrial assets.

Technical Specification Overview

The Bently Nevada 330172-16-42-10-01-00 functions as a specialized, non-contacting sensor designed for the 3300 XL NSV (Near Proximity) Transducer System. This probe utilizes a reverse-mount design, allowing for installation through a probe housing from the exterior of the machine. By generating a high-frequency eddy current field, the sensor measures the microscopic gap between the probe tip and the target shaft. This “Near Proximity” version excels in applications with small-diameter targets or tight clearances where standard 8mm probes would suffer from signal interference.

Design and Functional Capabilities

Engineers developed the 330172 series specifically for restrictive mounting geometries that require a reverse-mount interface. This configuration features a 1.6-inch unthreaded length and a 4.2-inch overall case length, providing the necessary depth to reach internal shaft surfaces through thick housings. Furthermore, the 3300 XL NSV system offers superior linearity and temperature stability, ensuring that vibration data remains consistent even during the intense thermal cycles of industrial operations.

Manufacturer: Bently Nevada
Model Number: 330172-16-42-10-01-00
System Series: 3300 XL NSV
Unthreaded Length: 1.6 inches
Overall Case Length: 4.2 inches
Total Cable Length: 1.0 Meter
Connector Option: Miniature coaxial ClickLoc connector
Agency Approval: Standard
Mounting Thread: 3/8-24 UNF
Linear Range: 1.5 mm

Operational Impact and Industrial Applications

This proximity transducer actively drives predictive maintenance strategies by delivering a continuous stream of high-fidelity data to the 3500 Monitoring System. Because the NSV system accurately tracks targets as small as 13 mm (0.5 inches) in diameter, it provides critical protection for auxiliary machinery that standard sensors cannot monitor. Consequently, operators can detect early signs of shaft misalignment, rotor imbalance, or bearing degradation, significantly reducing the risk of catastrophic asset failure.

Primary industrial applications include:

Small Centrifugal Pumps: Monitoring shaft vibration in high-pressure fluid transfer systems.
Auxiliary Turbines: Tracking axial displacement in compact steam or gas turbines.
Centrifuges: Measuring rotational stability in high-speed industrial separation equipment.
Tachometer Inputs: Providing phase reference signals in confined mounting locations.

Mechanical Integrity and Environmental Resilience

To ensure maximum durability in punishing environments, Bently Nevada utilizes a 304 stainless steel case and a PPS (polyphenylene sulfide) resin tip. This construction creates a hermetic seal that resists the ingress of moisture, lubricating oils, and process steam. Additionally, the patented ClickLoc connector technology provides a secure, vibration-resistant electrical connection. This mechanism prevents the signal attenuation often caused by mechanical oscillations, ensuring that the Proximitor sensor receives a clean signal for precise machinery diagnostic analysis.