Bently Nevada 330104-00-05-50-02-00 3300 XL 8mm Probe

Product Overview

The Bently Nevada 330104-00-05-50-02-00 3300 XL 8 mm proximity probe provides precision non-contact displacement sensing for rotating machinery protection. This probe serves as the primary sensing element within the eddy-current measurement chain for vibration and position monitoring. It converts the physical gap between the probe tip and the shaft surface into a stable impedance signal. Power generation facilities rely on this 3300 XL series probe for continuous turbomachinery protection. Its robust construction ensures accurate measurements across extreme temperature variations and harsh operating conditions.

Technical Specifications

The following table presents the complete technical parameters for the Bently Nevada 330104-00-05-50-02-00 3300 XL 8 mm proximity probe.

Parameter	Specification
Product Type	3300 XL 8 mm Proximity Probe (Sensing Element)
Compatibility	Bently Nevada 3300 XL and 3500 monitoring systems
Thread Size	3/4-20 UNF
Overall Probe Length	50 mm (tip to connector)
Thread Length	5 mm
Tip Material	Polyphenylene sulfide (PPS) with encapsulated coil
Case Material	316L stainless steel
Integral Cable Length	2 meters (6.6 feet)
Cable Jacket	High-strength fluoropolymer
Connector Type	6-pin female, gold-plated contacts
Coil Inductance	3.2 µH ±5% at 25°C
Weight	Approximately 0.48 kg
Operating Temperature	-51°C to +177°C
Storage Temperature	-55°C to +185°C
Minimum Bend Radius	25 mm (static)

Design Features and Construction

Probe Tip and Coil Technology

The Bently Nevada 330104-00-05-50-02-00 features a PPS probe tip that encapsulates a precision-wound induction coil. This advanced polymer offers outstanding resistance to chemical attack and thermal degradation in demanding environments. The coil maintains a stable inductance value of 3.2 microhenries across its entire specified temperature range. This stability guarantees consistent oscillator drive characteristics for accurate gap measurements in critical machinery.

Mechanical Dimensions and Compact Design

This 3300 XL probe measures 50 millimeters from the sensing face to the connector termination. It includes a 5-millimeter threaded section with standard 3/4-20 UNF threads. The compact length makes this probe ideal for installations with limited clearance or shallow mounting depths. The 316L stainless steel case provides exceptional corrosion protection and mechanical durability for long-term service.

Integral Cable and Connector Assembly

A 2-meter integral fluoropolymer-jacketed cable extends directly from the probe body for system interconnection. This cable length provides convenient routing from the measurement point to junction boxes. Gold-plated 6-pin connectors at the termination end create secure, low-resistance electrical contacts. The cable’s 25-millimeter minimum bend radius prevents internal damage during installation and maintenance activities.

Environmental Performance and Durability

This 3300 XL probe operates reliably across an exceptionally wide temperature range from -51°C to +177°C. It also withstands short-term storage temperatures up to +185°C without degrading its electrical characteristics. The sealed PPS tip design prevents moisture ingress that could compromise coil performance. These environmental tolerances make the Bently Nevada 330104-00-05-50-02-00 suitable for both gas turbine and steam turbine monitoring applications.

Installation and System Integration

Installing this 3300 XL 8 mm probe requires threading it into a suitable mounting fixture or bearing housing assembly. You must set the probe gap correctly to achieve the proper DC bias voltage for the connected proximitor. The compact 50-millimeter overall length allows installation in tight machinery spaces with limited clearance. This probe integrates seamlessly with 3300 XL proximitors and 3500 rack monitoring systems for comprehensive protection solutions.