Bently Nevada 330103-05-10-10-12-05 Proximity Probe

Product Overview

The Bently Nevada 330103-05-10-10-12-05 proximity probes deliver non-contact shaft displacement measurements in rotating machinery applications. These probes form the sensing element of the eddy-current transducer system for vibration and position monitoring. They convert physical gap changes into impedance variations that proximitors subsequently translate into voltage signals. Turbine operators choose these probes for their proven reliability in critical equipment protection. Their robust design ensures stable operation across extreme temperature ranges.

Technical Specifications

The following table lists the complete technical parameters for the Bently Nevada 330103-05-10-10-12-05 proximity probes.

Parameter	Specification
Product Type	Proximity Probe (Sensing Element Only)
Compatibility	Bently Nevada 3300 XL and 7200 series systems
Total Probe Length	50 mm (probe tip to connector)
Thread Size	3/4-20 UNF (standard)
Thread Length	10 mm
Tip Material	Polyphenylene sulfide (PPS) with encapsulated coil
Connector Type	6-pin female, gold-plated contacts
Case Material	316L stainless steel
Cable Length (Integral)	10 meters (32.8 feet)
Coil Inductance	3.2 µH ±5% (at 25°C)
Weight	Approximately 0.75 kg
Operating Temperature	-51°C to +177°C
Storage Temperature	-55°C to +185°C

Design Features and Construction

Probe Tip and Coil Assembly

The Bently Nevada 330103-05-10-10-12-05 features a PPS tip that encapsulates a precision induction coil. This material provides excellent chemical resistance and thermal stability. The coil’s 3.2-microhenry inductance maintains consistent oscillator drive characteristics across the probe’s operating range. This design ensures accurate impedance conversion for reliable gap measurements.

Mechanical Configuration and Dimensions

This probe measures 50 millimeters from the sensing face to the connector interface. It includes a 10-millimeter threaded section with standard 3/4-20 UNF threads. The 316L stainless steel case protects internal components from mechanical damage and corrosion. Consequently, the Bently Nevada 330103-05-10-10-12-05 withstands demanding installation environments without suffering performance degradation.

Integral Cable and Connector Quality

A 10-meter integral cable extends from the probe body to facilitate direct connection to extension cables or proximitors. This cable features a fluoropolymer jacket that resists oil, solvents, and high temperatures. Gold-plated 6-pin connectors at the termination end ensure low-resistance contacts that maintain signal fidelity. Therefore, you can route this cable through crowded machine compartments without losing measurement accuracy.

Environmental Tolerance and Durability

This probe operates reliably across a temperature span from -51°C to +177°C. It also handles short-term excursions up to +185°C during storage conditions. The sealed PPS tip prevents moisture ingress that could compromise coil performance. Industrial facilities choose the Bently Nevada 330103-05-10-10-12-05 because its rugged construction supports years of continuous service in harsh conditions.

Installation and System Integration

Installing these probes requires threading them into standard mounting brackets or housing assemblies. You must set the initial probe gap within the recommended range for proper proximitor operation. The threaded section allows fine adjustments to achieve the desired DC output voltage. These probes integrate with 3300 XL proximitors and 3500 monitoring systems for complete machinery protection solutions.