330903-00-04-05-02-05 3300 NSv Proximity Probes

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330903-00-04-05-02-05
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 330903-00-04-05-02-05 3300 NSv Proximity Probe is an advanced eddy-current based transducer designed specifically for demanding industrial automation applications. Engineered for use with centrifugal air compressors, refrigeration compressors, process gas compressors, and other rotating machinery with compact installation constraints, the 3300 NSv Proximity Probe delivers precise and reliable measurements even in restricted spaces. Its compact side-view and rear-view design makes it an ideal solution for areas where traditional Bently Nevada 3300 and 3300 XL 5 mm or 8 mm Transducer Systems cannot be accommodated.

This high-performance probe is optimized for small target measurements, including radial vibration on shafts smaller than 51 mm (2 in) and axial positioning on flat targets as small as 15 mm (0.6 in). It provides critical monitoring capabilities in fluid-filmed bearing machines, enabling accurate radial vibration, axial thrust position, tachometer, zero-speed measurements, and phase reference (Keyphasor) signals.

Designed to be backward compatible, the 3300 NSv system can replace older 3300 RAM Transducer Systems or 3000/7000-series 190 Transducer Systems. Existing 3300 RAM probes, extension cables, and monitoring infrastructure can be reused when upgrading to the 330903-00-04-05-02-05 3300 NSv Proximity Probe and NSv Proximitor Sensor. For upgrades from 3000 or 7000 series systems, all components—including probes, cables, and sensors—must be replaced with NSv-specific components.

The 3300 NSv Proximity Probe features an average scale factor of 7.87 V/mm (200 mV/mil), the standard output for high-precision eddy current transducers. Its enhanced side-view design and capability to handle small targets allow a linear range of 1.5 mm (60 mils), exceeding that of previous 3000-series 190 Transducer Systems. This precision ensures reliable monitoring in automated industrial processes where space and target size are limiting factors.

Mechanically and electrically, the 3300 NSv probe is fully compatible with Bently Nevada’s legacy 3300 RAM probes and extension cables. Its chemically resistant construction makes it suitable for challenging process compressor environments, while its superior side-view characteristics enable more accurate gapping and measurement than 3000-series 190 probes. The probe is available in multiple configurations, including armored and unarmored 1/4-28, 3/8-24, M8x1, and M10x1 threads, with reverse mount options featuring 3/8-24 or M10x1 threads.

All system components include gold-plated ClickLoc connectors, ensuring secure connections that resist loosening. Bently Nevada’s patented TipLoc molding ensures a robust bond between probe tip and body, while the CableLoc design provides 220 N (50 lb) of pull strength to firmly secure the probe cable. For added reliability, connector protectors are recommended to prevent liquid ingress, ensuring consistent electrical signals in automated operations.

With the 330903-00-04-05-02-05 3300 NSv Proximity Probe, industrial automation systems gain a compact, highly precise, and chemically robust solution for advanced machinery monitoring, improving operational efficiency and reducing unplanned downtime in critical processes.

Applications

The 330903-00-04-05-02-05 3300 NSv Proximity Probe is specifically engineered for precise monitoring in industrial automation systems and rotating machinery with space constraints. Its compact M8x1 threaded probe case and miniature coaxial ClickLoc connector make it ideal for installations where traditional Bently Nevada 3300 and 3300 XL transducers cannot fit. With a total probe length of 0.5 meters (20 in) and an overall case length of 40 mm, this probe excels in tight side-view, rear-view, or counterbore locations.

Rotating Machinery Monitoring

The 3300 NSv Proximity Probe is extensively used for radial vibration and radial position measurements on small-diameter shafts (less than 51 mm / 2 in) and axial position monitoring on flat targets smaller than 15 mm (0.6 in). It provides high-resolution output with an average scale factor of 7.87 V/mm (200 mV/mil), suitable for fluid-filmed bearings, compressors, and other high-speed rotating equipment. Its 1.5 mm (60 mils) linear range ensures accurate readings for both legacy and modern automation systems.

Axial and Thrust Position Applications

In addition to radial monitoring, this probe is capable of axial (thrust) position measurements, making it a reliable tool for process compressors, refrigeration systems, and centrifugal air compressors. The chemically resistant PPS probe tip and AISI 304 stainless steel probe body allow use in challenging environments with potential exposure to process fluids, ensuring long-term durability and stability.

Tachometer and Phase Reference Measurements

The 3300 NSv probe also supports tachometer, zero-speed, and phase reference (Keyphasor) measurements, providing critical feedback for advanced automation control, speed regulation, and predictive maintenance systems. Its enhanced side-view design improves gap consistency and measurement accuracy compared to previous 3000-series 190 probes.

System Integration and Compatibility

Designed for seamless integration, the 3300 NSv probe is mechanically and electrically compatible with existing 3300 RAM proximity probes and extension cables. The robust ClickLoc connectors, TipLoc molding, and CableLoc design ensure secure connections, resisting loosening and protecting electrical signals even in vibration-heavy environments. Connector protectors are recommended to prevent liquid ingress, maintaining reliable operation in automated industrial systems.

Ideal Automation Applications

Overall, the 330903-00-04-05-02-05 3300 NSv Proximity Probe is ideal for automation systems requiring compact, high-precision, and chemically resistant proximity sensing in compressors, rotating machinery, and fluid-filmed bearing equipment. Its adaptability to small shafts, tight spaces, and harsh process environments makes it a preferred choice for modern industrial monitoring solutions.

Specifications

Competitive Advantage

Compact Design for Tight Installations

The 3300 NSv Proximity Probe features a 40 mm overall case length with a 0 mm unthreaded option, making it ideal for centrifugal air compressors, refrigeration compressors, process gas compressors, and other machinery with restricted installation space. Its compact size allows precise measurements even in counter bore, sideview, or rearview constrained areas where standard 3300 and 3300 XL 5 mm or 8 mm transducers cannot fit.

High-Precision Vibration and Position Monitoring

With a linear range of 1.5 mm (60 mils) and a recommended gap of 1.0 mm (40 mils), the 3300 NSv probe provides highly accurate radial vibration, radial position, and axial (thrust) measurements. It also supports tachometer, zero-speed, and phase reference (Keyphasor) applications, making it versatile for fluid-film bearing machinery.

Compatibility and Upgrade Flexibility

The 3300 NSv system is mechanically and electrically compatible with previous Bently Nevada 3300 RAM probes and extension cables, enabling seamless upgrades without replacing the entire monitoring infrastructure. It can also replace older 3000-series and 7000-series 190 transducer systems when full NSv components are used.

Robust Construction for Harsh Environments

Constructed with AISI 304 stainless steel and a polyphenylene sulfide (PPS) probe tip, the 3300 NSv probe is resistant to chemicals and extreme temperatures (-52°C to +177°C), making it suitable for demanding process compressor applications. The patented TipLoc molding and CableLoc designs provide exceptional mechanical strength and secure cable connections, while ClickLoc connectors with gold-plated brass prevent loosening and ensure reliable signal transmission.

Superior Side-View and Small-Target Performance

The NSv probe is optimized for small shaft or reduced side-view applications, outperforming both the 3300 RAM and 3000-series 190 probes in similar gapping conditions. Its short linear range, enhanced side-view characteristics, and small target compatibility allow for highly precise measurements in challenging industrial setups.

Certified and Reliable

The probe carries multiple agency approvals, ensuring compliance with global industrial standards. Recommended connector protectors prevent liquid ingress and maintain the integrity of the electrical signal, providing long-term reliability in automated monitoring systems.