Bently Nevada 330903-00-04-05-02-05 3300 XL NSv Proximity Probe

Description

The 330903-00-04-05-02-05 is a 3300 XL NSv proximity probe featuring an M8x1 thread and unarmored construction. This transducer is specifically engineered for machinery environments with restricted space, such as aeroderivative turbines, refrigeration compressors, and small-bore process gas compressors. With a 0.0 in unthreaded length (Option 00), 0.4 in case length (Option 04), and 0.5 m total system length (Option 05), this probe provides the compact sensing profile required for applications where standard 8 mm or 5 mm transducers face mounting or side-view limitations.

As part of the 3300 XL NSv Transducer System, this unit utilizes an enhanced eddy-current sensing design to deliver precise radial vibration and axial position measurements. The probe is terminated with a miniature coaxial ClickLoc connector (Option 02) and carries Multiple Approvals (Option 05), including CSA, ATEX, and IECEx certifications for hazardous area deployment. It is mechanically compatible with standard Bently Nevada 3300 NSv extension cables and 3300 XL NSv Proximitor Sensors.

Features

• M8x1 Thread: Standard metric threading for precise mounting in specialized bearing housings.
• Unarmored Construction: Standard probe body design for use in applications not requiring mechanical abrasion protection.
• ClickLoc Connector: Gold-plated brass miniature coaxial connector that locks to prevent loosening and ensures signal integrity.
• NSv Technology: Optimized for small-target applications and restricted side-view environments where standard 3300 XL sensors may not fit.
• Hazardous Area Certified: Multiple approvals (CSA, ATEX, IECEx) for safe operation in explosive atmospheres.
• Standard Cable: Unarmored coaxial lead configured for typical industrial monitoring installations.

Applications

• Radial vibration and position monitoring on small-shaft fluid-filmed bearing machines.
• Axial (thrust) position measurements for flat targets smaller than 15 mm.
• Tachometer, zero speed, and phase reference (Keyphasor) applications.
• High-density installations where counterbore or side-view restrictions prevent the use of standard 3300 XL 8 mm probes.

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the probe is gapped according to the 3300 XL NSv datasheet specifications for the target material. Use connector protectors on the probe-to-extension cable interface to prevent liquid ingress, particularly in wet or oil-mist environments. Avoid sharp bends in the coaxial cable to maintain signal impedance and prevent damage to the dielectric. For hazardous area installations, adhere strictly to Bently Nevada control drawings 141092 (Intrinsically Safe) or 140979 (Non-Incendive/Non-Sparking).