Description

The Bently Nevada 330105-02-12-02-05-00 is a high-performance 3300 XL 8mm reverse mount proximity probe. Designed for the 3300 XL Proximity Transducer System, this probe provides an output voltage directly proportional to the distance between the probe tip and an observed conductive surface. It is essential for monitoring radial vibration, axial position, and rotor speed in critical rotating machinery.

Features

• Reverse mount configuration for installation from the opposite side of the mounting surface.
• 3/8-24 UNF thread for secure mechanical mounting.
• Equipped with a miniature coaxial ClickLoc connector and protective armor.
• Patented TipLoc and CableLoc designs for enhanced durability and pull strength.
• Complies with API 670 standards for linear range, accuracy, and temperature stability.
• Fully interchangeable with other 3300 XL system components without the need for individual bench calibration.

Applications

• Steam and Gas Turbines: Monitoring radial vibration and axial thrust for turbine rotors.
• Generator Bearings: Detecting oil whirl, friction, and misalignment in fluid-film journal bearings.
• Centrifugal Compressors: Monitoring high-speed rotors for gas transport and reinjection.
• Cooling Water Pumps and Forced Draft Fans: Safeguarding high-capacity auxiliary industrial equipment.
• Turbo-Expanders: Maintaining shaft stability under varying temperature differentials.

Technical Specifications

Installation Guidelines

• Target Side Clearance: Maintain a counterbore diameter of at least 22.2 mm (0.875 inches) around the probe tip to prevent eddy current field bleeding into the surrounding casing.
• Cross-Talk Prevention: When mounting multiple 8 mm probes in parallel, such as in dual-redundant thrust configurations, ensure probe tips are separated by a minimum of 25 mm (1.0 inch).
• Handling: Use caution with the probe tip and cable assembly. Ensure the connector is clean and free of debris before mating.
• System Power: Always de-energize the associated Proximitor sensor before connecting or disconnecting the probe cable.

FAQ

What is the primary function of this probe?
It measures the exact distance between the probe tip and a conductive surface to monitor vibration and position in rotating machinery.

Can I mix XL components with older non-XL 3300-series parts?
Yes, but system performance and measurement tolerances will be limited to the specifications of the older, non-XL hardware.

Does this probe require an extension cable?
This specific part is configured for a 2-meter system length. Extension cables are generally used to achieve 5-meter or 9-meter total system lengths.