Bently Nevada 330901-16-24-10-02-05 3300 NSv Proximity Probes

Description

Option 16 (1.6 in unthreaded length) and Option 24 (2.4 in case length) specify this unarmored standard-mount configuration: 330901-16-24-10-02-05. As a 3300 NSv Proximity Probe, this transducer provides non-contact displacement measurements in tight clearances and confined spaces where standard probes cannot fit. The probe uses a 1/4-28 UNF-2A thread design without stainless steel armor, paired with a 1.0-meter standard coaxial cable terminated in a miniature coaxial ClickLoc connector.

This transducer operates within the 3300 XL NSv system, which comprises a 3300 NSv probe, a 330930 extension cable, and a 330980 Proximitor sensor. It serves as a measurement sensor for vibration and position monitoring of small-bore machinery, high-speed turbine shafts, and other industrial applications with limited target geometries. The Option 05 configuration brings Multiple Approvals certification for hazardous environments.

Features

• 1/4-28 UNF-2A thread design without stainless steel armor
• 1.6 in unthreaded length (Option 16) with 2.4 in overall case length (Option 24)
• 1.0 m total system cable length (Option 10) utilizing standard FEP insulated coaxial cable
• Miniature coaxial ClickLoc connector (Option 02) without connector protector
• Multiple Approvals certification package (Option 05) for hazardous area use

Applications

This NSv proximity probe is used in rotating machinery protection systems for measuring:

• Radial shaft vibration on small-diameter rotors
• Axial position on small-bore machinery
• Tachometer and speed measurements on high-speed shafts
• Confined-space industrial applications where side clearance is restricted

Ordering Information

Technical Specifications

Installation Guidelines

To achieve correct calibration and prevent cross-talk or target distortion, the following practices must be followed:

• Verify that the unthreaded length (1.6 in) and overall case length (2.4 in) provide the correct positioning for standard-mount installation.
• Ensure target size is at least 13 mm (0.5 in) in diameter; targets smaller than this may affect system scale factor.
• Keep a minimum separation of 25 mm (1.0 in) between adjacent transducer tips for axial position measurements, or 23 mm (0.9 in) for radial vibration configurations to prevent electromagnetic cross-talk.
• Maintain a minimum cable bend radius of 25.4 mm (1.0 in) during cable routing.

Compliance and Certifications

This probe configuration carries Multiple Approvals (Option 05) including:

• CSA/NRTL/C: Class I, Zone 0, 1, and 2, Groups A, B, C, and D; Class II, Groups E, F, and G; Class III
• ATEX/IECEx: Ex ia IIC T5...T1 Ga; Ex ia IIIC T90 degC...T280 degC Dc