Bently Nevada 330902-00-50-05-02-00 3300 NSv Proximity Probe

Description

Option 00 specifies a 0.0 in unthreaded length and Option 50 designates a 5.0 in overall case length on this 3300 NSv threaded proximity probe configuration — 330902-00-50-05-02-00.

The transducer configuration has stainless steel armor protecting the coaxial line from physical damage in heavy machinery environments. This configuration has a 1/4-28 UNF threaded case, a 0.5 meter total cable length, a miniature ClickLoc coaxial connector, and does not carry hazardous area agency approvals. The 3300 NSv transducer system operates on eddy-current measurement principles to monitor shaft vibration and axial position on high-speed rotating machinery with limited target clearances.

Features

• Threaded 1/4-28 UNF-2A probe case with integrated stainless steel armor.
• Fully threaded case configuration with a 5.0-inch case length and 0.0-inch unthreaded length.
• 0.5 meter (20 in) total probe cable length with a miniature male ClickLoc coaxial connector.
• Suitable for small-bore machinery or targets with limited clearance down to 20 mm (0.8 in) shaft diameters.
• Gold-plated brass ClickLoc connector locking mechanism to prevent connection loosening.
• TipLoc molding provides a secure bond between the polyphenylene sulfide tip and the steel case.
• CableLoc design delivers a maximum of 220 N pull strength between the cable and probe tip.

Applications

• Shaft radial vibration and axial position measurements on small rotating machinery.
• Aeroderivative gas turbines and auxiliary industrial machines.
• Centrifugal compressors, generators, and high-speed pumps.
• Machinery installations with tight spatial clearances and limited target geometry.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

For correct mounting and operation of the 3300 NSv proximity probe, observe the following engineering practices:

• Target Diameter: Maintain a target diameter of 31 mm (1.2 in) or larger for optimal scale accuracy. Shaft diameters below 20 mm (0.8 in) will cause a notable change in scale factor.
• Thread Engagement: Thread engagement length must not exceed 0.375 inches for 1/4-28 threads to avoid thread binding during installation.
• Minimum Bend Radius: Do not exceed the minimum coaxial cable bend radius of 25.4 mm (1.0 in).
• Torque Limits: Tighten the probe case to a recommended torque of 5.1 N-m (45 in-lb), never exceeding 7.3 N-m (65 in-lb).
• Connector Mating: Keep ClickLoc coaxial connections clean and free of moisture. Hand-tighten connections and use silicone self-fusing tape if exposed to turbine oil or liquids.