Bently Nevada 330906-02-12-10-12-00 3300 XL NSv Sensor

Product Overview

The Bently Nevada 330906-02-12-10-12-00 3300 XL NSv Proximitor sensor provides reliable non-contact displacement measurement for rotating machinery monitoring applications. This sensor integrates the sensing probe and signal conditioning electronics into a single compact assembly. It converts shaft gap variations into a linear DC voltage signal for monitoring systems. Maintenance engineers choose this NSv series sensor for its space-saving design and exceptional durability. Its robust construction ensures stable performance in high-vibration and high-temperature industrial settings.

Technical Specifications

The table below outlines the complete technical parameters for the Bently Nevada 330906-02-12-10-12-00 3300 XL NSv Proximitor sensor.

Parameter	Specification
Product Type	3300 XL NSv Proximitor Sensor
Compatibility	Bently Nevada 3500 and 3300 monitoring systems
Mounting Type	NSv (Narrow Side-view) configuration
Thread Size	3/4-20 UNF
Overall Sensor Length	120 mm
Thread Length	10 mm
Tip Material	Polyphenylene sulfide (PPS) with encapsulated coil
Case Material	316L stainless steel
Integral Cable Length	12 meters (39.4 feet)
Cable Jacket	High-strength fluoropolymer
Connector Type	6-pin female, gold-plated contacts
Output Signal	-1.5 VDC to -23.5 VDC
Linear Range	2.0 mm (80 mils)
Sensitivity	7.87 mV/µm (200 mV/mil) ±5%
Weight	Approximately 1.05 kg
Operating Temperature	Probe: -51°C to +177°C; Electronics: -35°C to +85°C

Design Features and Construction

Integrated Sensor Design

The Bently Nevada 330906-02-12-10-12-00 combines the proximity probe and proximitor electronics into a single integrated sensor assembly. This design eliminates the need for separate extension cables and external signal conditioners. The NSv configuration features a narrow side-view profile that fits into confined installation spaces. Consequently, this sensor simplifies system architecture while reducing overall component count.

Probe Tip and Sensing Element

A PPS tip encapsulates the precision induction coil at the sensor’s sensing face. This advanced polymer provides outstanding resistance to chemical exposure and thermal degradation. The coil maintains stable inductance characteristics throughout its operating temperature range. This stability guarantees consistent measurement performance in demanding turbomachinery applications.

Mechanical Dimensions and Mounting

This sensor measures 120 millimeters from the sensing face to the connector termination. It includes a 10-millimeter threaded section with standard 3/4-20 UNF threads. The 316L stainless steel case provides excellent corrosion protection and mechanical strength. At approximately 1.05 kilograms, the Bently Nevada 330906-02-12-10-12-00 offers a robust, vibration-resistant package.

Extended Cable and Signal Transmission

A 12-meter integral fluoropolymer-jacketed cable extends from the sensor body for direct system connection. This generous cable length allows flexible routing from measurement points to monitoring racks. Gold-plated 6-pin connectors at the cable end ensure low-resistance, corrosion-free contacts. The sensor delivers a linear output from -1.5 VDC to -23.5 VDC across its 2.0-millimeter measurement range.

Installation and Application

Installing the Bently Nevada 330906-02-12-10-12-00 requires threading the sensor into a suitable mounting bracket or housing. You must set the sensor gap correctly to position the output voltage within the linear operating range. The NSv side-view configuration allows installation where standard straight probes cannot access the shaft surface. This sensor supports radial vibration and axial position monitoring in compressors, turbines, and generators.