Bently Nevada 330902-00-10-10-01-00 3300 NSv Proximity Probe

Description

Option 00 (0.0 in unthreaded length) and Option 10 (1.0 in case length) specify this armored 3300 NSv proximity probe configuration - 330902-00-10-10-01-00. This non-contact eddy-current transducer is constructed with AISI 304 stainless steel case threading and flexible AISI 302 stainless steel armor for aggressive industrial environments. It provides non-contact displacement measurements on rotating machinery where tight installation clearances, compact counterbores, or small target geometries restrict the use of larger standard probes.

This configuration features a 1.0 m (39 in) total cable length, ending with a miniature coaxial ClickLoc connector pre-installed with a fluorosilicone connector protector. Unlike unarmored variants, the protective armor prevents cable pinching and mechanical abrasion, while the integrated connector protector shields the critical coaxial junction from moisture, lubricants, and process fluids. The system operates by transmitting an RF signal from a paired 3300 XL NSv Proximitor Sensor to observe eddy currents generated in a target material, typically calibrated for AISI 4140 steel.

Features

• Stainless steel armor: Flexible AISI 302 stainless steel armor protects the coaxial cable from abrasive wear, pinching, and mechanical stress.
• Compact 1.0 inch case: Short overall case length (Option 10) allows for installation in narrow enclosures, bearing housings, and tight clearance areas.
• Fully threaded body: Option 00 specifies a 0.0 in unthreaded length, maximizing thread engagement in 1/4-28 UNF tapped holes.
• ClickLoc connector: Gold-plated brass miniature coaxial connector prevents connection loosening through a positive locking mechanism.
• Connector protector: Installed fluorosilicone sleeve prevents oil, water, and contaminants from entering the probe-to-extension cable interface.
• Polyphenylene sulfide tip: Molded PPS tip with patented TipLoc construction provides high chemical resistance and mechanical bonding to the probe body.

Applications

• Radial vibration and axial position monitoring in centrifugal air and process gas compressors.
• Shaft displacement measurements on refrigeration compressors and small-bore turbomachinery.
• Speed and phase reference sensing (Keyphasor signals) on shafts smaller than 51 mm (2.0 in).
• Axial thrust measurements on flat targets smaller than 15 mm (0.6 in).
• Aeroderivative gas turbines and auxiliary industrial equipment with restricted mounting spaces.

Ordering Information

Technical Specifications

Installation Guidelines

• Torque Limits: For 1/4-28 UNF probe cases, the recommended installation torque is 5.1 N m (45 in lb). Do not exceed the maximum rated torque of 7.3 N m (65 in lb) to prevent thread damage.
• Minimum Bend Radius: Maintain a minimum cable bend radius of 25.4 mm (1.0 in) for both armored and unarmored probe leads.
• Connector Assembly: Torque coaxial ClickLoc connectors finger tight. The maximum allowable connector-to-connector torque is 0.56 N m (5 in lb).
• Environmental Protection: Ensure the pre-installed fluorosilicone connector protector is fully seated over the connection point to seal out oil, water, and other process liquids.
• Target Size Requirements: Designed for flat targets down to 15 mm (0.6 in) in diameter or shafts down to 50 mm (2.0 in) without substantial scale factor deviation.

Compliance and Certifications

• CE Mark: Complies with applicable RFI/EMI immunity and electromagnetic compatibility directives.