Bently Nevada 330103-00-05-50-12-00 8mm Probe

Product Overview

The Bently Nevada 330103-00-05-50-12-00 is a high-precision 8mm proximity probe engineered for the critical monitoring of large rotating machinery. Utilizing eddy current technology, this sensor provides non-contacting displacement measurements, capturing essential data such as radial vibration, axial thrust, and shaft position. 

Technical Configuration

Model-Specific Breakdown

• Unthreaded Length (00): 0mm — Designed for smooth-surface installation or fully threaded mounting requirements.
• Case Length (05): 50mm — A compact housing design that facilitates standard mounting in constrained spaces.
• Total Length (50): 5.0 Meters (16.4 feet) — This system length must be paired with a 5m 3300 XL Proximitor® to ensure a calibrated scale factor.
• Cable Assembly (12): 5.0m FluidLoc® — Features a 3.2mm OD abrasion-resistant jacket and a patented internal seal to prevent oil wicking.
• Agency Approval (00): No certifications required — Suitable for standard industrial, non-hazardous area applications.

Technical Specifications

Installation & Maintenance Guide

Engineering Best Practices

Gap Voltage Calibration: During installation, position the probe until the DC output voltage from the Proximitor® reaches -10.0 Vdc. This ensures the target is perfectly centered within the sensor's linear range.

Connector Security: Engage the ClickLoc™ connectors with a mating force of 15-20N. The locking mechanism prevents signal interference caused by mechanical vibrations.

Bend Radius: To protect signal integrity, maintain a minimum cable bend radius of 25.4 mm (1.0 in). Avoid over-tightening cable ties on the 5.0m FluidLoc® jacket.

Engineering Advantages

The 330103-00-05-50-12-00 stands out due to its FluidLoc® technology, which prevents machine oil from leaking through the cable core—a common failure point in pressurized bearing housings. Its PPS (Polyphenylene Sulfide) tip provides superior chemical resistance and thermal stability, making it the preferred choice for long-term Turbine Supervisory Instrumentation (TSI) deployments.

Technical FAQs

Q1: Can I use this 5.0m probe with a 9.0m Proximitor®?
A1: No. Proximity systems are tuned to specific electrical lengths. Using a 5m probe with a 9m sensor will result in an incorrect scale factor and invalid data.

Q2: What is the benefit of the FluidLoc® cable option?
A2: It provides an internal seal that prevents process fluids or lubricating oil from migrating through the cable into the junction box, even if the outer jacket is damaged.

Q3: Is this probe compatible with older 3300 series monitors?
A3: Yes, 3300 XL probes are electrically compatible with older 3300 systems, provided the total system length (Probe + Extension + Proximitor) remains consistent.