Bently Nevada 330103-08-13-10-02-05 Reverse Mount Probe

Technical Overview

The Bently Nevada 330103-08-13-10-02-05 is a specialized reverse-mount eddy current sensor designed for internal machinery mounting. Unlike standard forward-mount probes, the 330103 series is engineered to be installed from the inside of a machine housing or through a probe housing (such as the 3300 XL internal housing) where the cable exits through the rear. This configuration is essential for applications where space is constrained or where the probe must be protected from external environmental factors while monitoring shaft vibration and position.

Technical Specifications

This model utilizes a 3/8-24 UNF-2A thread and is specifically calibrated for the high-stability 3300 XL 8mm proximity transducer system.

• Mounting Configuration: Reverse Mount with 3/8-24 UNF-2A threads, allowing for secure internal installation.

• Mechanical Dimensions: * Unthreaded Length: 0.8 inches, providing a smooth interface for specific bracket depths.

• Overall Case Length: 1.3 inches, offering a low-profile footprint for compact internal clearances.

• Cabling System: 1.0-meter (3.3 ft) integral cable featuring a gold-plated ClickLoc™ miniature coaxial connector.

• Core Materials: * Sensor Tip: Polyphenylene Sulfide (PPS) for vacuum-tight sealing and thermal endurance.

• Sensor Body: High-grade AISI 303/304 Stainless Steel (SST).

• Electrical Output:

• Linear Range: 2.0 mm (80 mils).

• Scale Factor: 7.87 V/mm (200 mV/mil) when paired with a matched 3300 XL Proximitor.

• Certifications (05 Suffix): Comprehensive hazardous area approvals including CSA, ATEX, and IECEx for explosive atmospheres.

Key Features

• Internal Installation Focus: The reverse-mount design is the preferred solution for mounting inside bearing housings, ensuring the probe is protected from physical impacts while simplifying cable routing in enclosed systems.

• Interlocking ClickLoc™ Connector: The miniature coaxial connector prevents signal intermittentcy or detachment caused by machine-induced resonance, providing a stable 50-ohm impedance path.

• Vacuum-Tight Sealing: The probe-to-case seal is tested to maintain integrity under pressure (up to 50 psi), preventing the migration of lubricating oil into the sensor or the cable conduit.

• Enhanced Linearity: Offers superior linear performance compared to previous 3300 series models, maintaining high accuracy even across significant temperature fluctuations.

• Application Versatility: Primarily utilized for monitoring shaft radial vibration and axial thrust on high-speed rotating assets such as gas turbines, compressors, and gearboxes.