Bently Nevada 330902-00-25-10-02-05 3300 NSv Proximity Probe

Description

330902-00-25-10-02-05 specifies a 3300 NSv proximity probe configured with a 1/4-28 UNF thread and protective stainless steel armor. This orderable assembly includes Option 00 (0.0 in unthreaded length), Option 25 (2.5 in overall case length), Option 10 (1.0 m total length), Option 02 (standard cable with a ClickLoc miniature coaxial connector), and Option 05 (Multiple Approvals including CSA, ATEX, and IECEx).

The integrated stainless steel armor protects the coaxial cable from physical damage in harsh rotating machinery environments. The 3300 NSv system is used in target applications with small shaft diameters or limited axial clearances where larger standard probes are physically incompatible. This configuration provides non-contact eddy-current measurement capabilities when paired with a matching 3300 XL NSv Proximitor sensor and extension cable.

Features

• Option 00 designates a fully threaded case with zero unthreaded length.
• Option 25 provides a 2.5 in overall threaded case length with 1/4-28 UNF-2A threads.
• Option 10 specifies a 1.0 m (39 in) integrated cable length.
• Option 02 includes a miniature coaxial ClickLoc connector with FEP-jacketed cable.
• Option 05 designates multiple agency approvals for deployment in hazardous areas.
• Integrated AISI 302 stainless steel armor protects the cable against abrasive and high-wear environments.
• Viton O-ring pressure seal blocks differential pressure between the probe tip and case.

Applications

• Radial vibration and axial position monitoring on shafts smaller than 30 mm (1.2 in).
• Aeroderivative gas turbines and turbochargers with constrained mounting geometry.
• High-speed rotating equipment requiring non-contact displacement monitoring in confined locations.
• Hazardous industrial environments requiring intrinsically safe certifications.

Ordering Information

Technical Specifications

Installation Guidelines

• Recommended installation torque for 1/4-28 probe cases is 5.1 N m (45 in-lb). The maximum rated limit is 7.3 N m (65 in-lb).
• Maintain a minimum cable bend radius of 25.4 mm (1.0 in) during routing to prevent core conductor degradation.
• To avoid electromagnetic cross-talk, ensure transducer tips are separated by at least 25 mm (1.0 in) for axial position or 23 mm (0.9 in) for radial vibration measurements.
• Protect the miniature ClickLoc connection from environmental contaminants using self-fusing silicone tape or a dedicated connector protector kit.

Compliance and Certifications

• EMC Standards: EN 61000-6-2, EN 61000-6-4 (EMC Directive 2014/30/EU)
• RoHS Standards: ROHS Directive 2011/65/EU; China RoHS EFUP of 15 years
• Functional Safety: SIL 2 (HFT = 0), SIL 3 (HFT = 1)
• Hazardous Area Ratings (Option 05): Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga; Class I, Div 1, Groups A, B, C, D (Intrinsically Safe under proper drawings)