Description

Bently Nevada 330101-00-50-20-02-CN | 3300 XL 8 mm Proximity Transducer Probe

The Bently Nevada 330101-00-50-20-02-CN is a precision-engineered eddy current sensor designed for the 3300 XL 8 mm Proximity Transducer System. This probe serves as the primary sensing element for non-contact measurement of shaft vibration and position. By generating a high-frequency electromagnetic field, the probe detects the distance between its tip and the target conductive surface. This data is vital for assessing the mechanical health of high-speed rotating machinery, such as steam turbines, centrifugal compressors, and large industrial pumps.

Technical Configuration and System Integration

This specific model follows a modular architecture to accommodate diverse mounting requirements. The “CN” designation indicates compliance with specific regional certifications, ensuring the hardware meets local industrial standards for safety and performance. As part of the 3300 XL family, this probe provides a standard linear range of 2.0 mm (80 mils) when paired with a matching 3300 XL Proximitor sensor. The robust design handles high-pressure environments and is chemically resistant to typical machine lubricants and coolants, ensuring signal stability over long-term deployments.

Product Specifications

The 330101-00-50-20-02-CN is defined by the following technical parameters:

• Manufacturer: Bently Nevada (Baker Hughes)
• Model Number: 330101-00-50-20-02-CN
• Probe Tip Diameter: 8 mm
• Thread Size: 3/8-24 UNF (Standard Thread)
• Unthreaded Length: 0.0 inches (00 option)
• Overall Case Length: 5.0 inches (50 option)
• Total Length: 2.0 meters (20 option)
• Connector Option: Miniature coaxial ClickLoc connector with connector protector (02 option)
• Weight: Approximately 0.12 kg
• Operating Temperature: -51 °C to +177 °C (-60 °F to +351 °F)

Applications in Machinery Protection

Industrial facilities utilize this proximity probe for critical Turbine Supervisory Instrumentation (TSI). The sensor captures rapid changes in shaft radial vibration, providing early warning of bearing wear or rotor imbalance. Additionally, it monitors axial thrust position to prevent catastrophic internal contact within the machine. Because the probe provides a non-contact interface, it eliminates mechanical wear on the sensor itself, resulting in a highly reliable solution for continuous, 24/7 machinery surveillance.

Durability and Installation Benefits

The 330101-00-50-20-02-CN features a Polyphenylene Sulfide (PPS) probe tip, which is molded over the internal coil to provide a liquid-tight seal. The stainless steel probe case resists corrosion and physical impact. Furthermore, the patented ClickLoc connector system ensures a secure, vibration-proof electrical connection to the extension cable. This design streamlines the installation process and reduces the likelihood of signal loss caused by loose or contaminated connections in harsh field conditions.