330901-20-32-10-02-05 3300 NSv Proximity Probe

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330901-20-32-10-02-05
Minimum Order Quantity:	1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 330901-20-32-10-02-05 3300 NSv Proximity Probe is a compact eddy current displacement sensor engineered for high-precision vibration and position measurement in industrial automation systems with severe space limitations. As part of the Bently Nevada 3300 NSv Proximity Transducer family, this model is optimized for centrifugal compressors, process gas compressors, refrigeration compressors, and other rotating machinery where reduced side-view clearance and small shaft diameters restrict the use of standard 5 mm or 8 mm probes.

Featuring a 1/4-28 UNF threaded stainless steel probe case with an overall case length of 3.2 inches and a 1.0 meter standard coaxial ClickLoc cable, the 3300 NSv proximity probe delivers reliable non-contact measurement in harsh industrial environments. The probe provides a linear range of 1.5 mm with a recommended gap of 1.0 mm, enabling accurate detection of radial vibration, axial position, speed reference, and phase signals on shafts smaller than 51 mm.

The probe tip is manufactured from polyphenylene sulfide (PPS), offering enhanced chemical resistance for oil, gas, and petrochemical processes, while the AISI 304 stainless steel housing ensures long-term mechanical stability. With an operating temperature range from -52°C to +177°C and low supply sensitivity below 2 mV/V, the 3300 NSv Proximity Probe maintains stable output in demanding automation and machinery protection systems. Designed for seamless integration with existing Bently Nevada monitoring platforms, this model supports modernization projects while maintaining signal consistency and measurement accuracy across critical assets.

Applications

Radial Vibration Monitoring in Compact Compressors
In centrifugal and refrigeration compressors with shaft diameters below 51 mm, the 330901-20-32-10-02-05 probe measures radial vibration within a 1.5 mm linear range, enabling early detection of imbalance and bearing wear while operating at temperatures up to 177°C.

Axial Thrust Position Measurement
Installed near thrust collars in fluid-film bearing machines, the probe provides precise axial position data with a recommended 1.0 mm gap, helping prevent thrust bearing overload and reducing unplanned downtime in continuous process plants.

Phase Reference and Keyphasor Functions
When used for phase reference applications, the NSv probe delivers stable output resistance of 50 ohms and consistent signal quality, supporting accurate phase analysis and vibration vector diagnostics in automated condition monitoring systems.

Zero Speed and Tachometer Detection
The probe supports reliable zero-speed and tachometer measurements on small targets under tight installation constraints, improving machinery startup and shutdown control logic in rotating equipment automation.

Retrofit and Upgrade of Legacy Systems
The 3300 NSv Proximity Probe allows upgrades from older 3300 RAM systems while retaining compatible mechanical interfaces, reducing installation time and ensuring measurement continuity during automation system modernization.

Specifications

Competitive Advantage

Compact Design for Restricted Installations
With a 3.2 inch overall case length and 1/4-28 UNF thread, this probe fits into counterbore and side-view limited locations where standard proximity probes cannot be installed.

High Measurement Stability Across Temperature Range
Operating from -52°C to +177°C with supply sensitivity below 2 mV/V, the probe ensures stable signal output even during thermal fluctuations in industrial environments.

Enhanced Chemical Resistance
The PPS probe tip provides superior resistance to oils, process gases, and industrial chemicals, extending service life in compressor and petrochemical applications.

Reliable Signal Integrity with ClickLoc Technology
Gold-plated brass ClickLoc connectors and a secure coaxial interface minimize signal loss and prevent connector loosening, improving long-term reliability in vibration monitoring systems.

Optimized Performance for Small Targets
With a scale factor of approximately 7.87 V/mm and a linear range exceeding older 3000-series probes, the 3300 NSv probe delivers higher resolution measurements on small shafts and reduced target areas.