Product Overview

The 330910-00-08-50-01-05 is a specialized Narrow Side View (NSv) eddy current proximity probe from Bently Nevada, designed for critical displacement and vibration monitoring in space-restricted environments. This non-contacting sensor is engineered to overcome the limitations of standard 8 mm probes by providing accurate measurements in tight counterbores or areas with severe side-view clearance restrictions. It converts the distance between the probe tip and a conductive target into a linear voltage signal, facilitating real-time monitoring of radial shaft vibration and axial position in high-speed centrifugal compressors and refrigeration units.

Technical Configuration

The model number 330910-00-08-50-01-05 specifies a high-durability hardware profile:

• Model Series: 330910 (3/8-24 UNF thread / M10x1 metric equivalent design)

• Unthreaded Length: 0.0 mm (Fully threaded housing)

• Overall Case Length: 80 mm (approx. 3.1 inches)

• Total System Length: 5.0 Meters (approx. 16.4 feet)

• Connector Type: Miniature coaxial ClickLoc with integrated connector protector (01 option)

• Agency Approvals: Multi-certified for hazardous areas including ATEX, IECEx, and CSA (05 option)

• Target Calibration: Standard AISI 4140 steel

• Linear Range: 1.5 mm (60 mils)

Engineering for Harsh Environments

The 3300 NSv series incorporates patented design features to ensure operational reliability in demanding process conditions:

• Advanced Side-View Shielding: The probe tip is uniquely shielded to ignore surrounding conductive material, allowing for accurate data acquisition on shafts smaller than 51 mm (2 inches) or targets smaller than 15 mm (0.6 inches).

• Hermetic Reliability: Utilizing the patented TipLoc molding process, the Polyphenylene Sulfide (PPS) probe tip is chemically bonded to the stainless steel body, creating a vacuum-tight seal that prevents oil or moisture wicking into the sensing coil.

• CableLoc Integrity: The probe-to-cable junction is engineered to withstand up to 220 N (50 lb) of pull strength, ensuring electrical continuity under high-vibration and mechanical stress.

• Corrosion Resistance: Features gold-plated ClickLoc connectors that provide a secure, self-locking signal path, while the integrated protector shields the junction from liquid ingress and contaminants.

Industrial Applications and TSI Integration

As a cornerstone of Turbine Supervisory Instrumentation (TSI), this 5.0-meter probe offers:

• Comprehensive Asset Protection: Ideal for monitoring shaft dynamic motion in fluid-film bearings and thrust position in compact rotating machinery.

• System Flexibility: The extended 5-meter system length allows for flexible sensor placement, often eliminating the need for separate extension cables in smaller machine footprints.

• Interchangeability: All 5.0-meter 3300 NSv components (probes, cables, and Proximitor sensors) are fully interchangeable without manual bench calibration, streamlining maintenance procedures.

• EMI/RFI Immunity: Engineered to exceed CE requirements for electromagnetic compatibility, providing stable measurement signals in electrically noisy industrial environments.