Bently Nevada 330101-00-25-20-12-00 3300 XL 8mm Proximity Probe

Precision Displacement Monitoring and Machine Safeguarding

The Bently Nevada 330101-00-25-20-12-00 drives high-performance machinery protection by capturing high-resolution vibration and displacement data. This 3300 XL series eddy current sensor monitors microscopic shaft movements without physical contact, ensuring zero mechanical wear and long-term signal stability. By integrating this probe into your Turbine Supervisory Instrumentation (TSI), you enable real-time diagnostics of radial vibration and axial thrust position. The sensor delivers the critical raw data necessary for the 3500 Monitoring System to execute automated emergency trips, protecting high-capital rotating assets from catastrophic failure.

Critical Technical Specifications

• Brand: Bently Nevada
• Model Number: 330101-00-25-20-12-00
• Product Series: 3300 XL 8mm Proximity Transducer System
• Thread Type: 3/8-24 UNF English Thread
• Unthreaded Length: 0.0 inches
• Overall Case Length: 2.5 inches
• Total Cable Length: 2.0 meters
• Connector Option: Miniature coaxial ClickLoc connector with connector protector
• Agency Approval: No hazardous area approvals
• Linear Range: 2.0 mm (80 mils)
• Operating Temperature: -51°C to +177°C

Operational Reliability and Asset Health

The 330101-00-25-20-12-00 maximizes machinery uptime by maintaining measurement integrity in extreme industrial environments. The probe tip utilizes a polyphenylene sulfide (PPS) construction that resists chemical corrosion and moisture ingress, preventing signal degradation in harsh conditions. The 2.5-inch case length provides a versatile fit for standard bearing housings, while the 2.0-meter lead allows for flexible routing to the extension cable junction. By adhering to API 670 standards, this probe ensures accurate monitoring for:

• Radial vibration on fluid-film bearing machines
• Axial thrust position in high-pressure centrifugal pumps
• Shaft eccentricity and thermal expansion diagnostics
• Real-time speed sensing and Keyphasor phase reference

Installation and System Integration

To complete a standard 5.0-meter or 9.0-meter electrical loop, pair this 2.0-meter probe lead with the corresponding 3300 XL extension cable (3.0m or 7.0m). The gold-plated ClickLoc connector with an integrated protector (12 option) seals the coaxial junction against lubricating oils and environmental debris. This robust electrical connection ensures that the 3500 rack receives a clean, noise-free data stream for advanced rotor dynamics analysis and automated machinery protection.