Description

Bently Nevada 330104-00-20-10-01-CN | 3300 XL 8 mm Reverse Mount Proximity Probe

The Bently Nevada 330104-00-20-10-01-CN is a specialized 8 mm proximity probe designed for reverse mount applications within the 3300 XL Transducer System. This sensor effectively measures static position and dynamic vibration by utilizing non-contacting eddy current technology. Unlike standard forward-mount versions, the reverse mount design allows for installation in housing assemblies where space or access constraints prevent traditional mounting. It provides critical data for Turbine Supervisory Instrumentation (TSI), ensuring that rotating shafts in high-speed machinery remain within safe operational limits.

Precision Engineering and Signal Stability

This probe model incorporates a high-density polyphenylene sulfide (PPS) tip, which provides a robust interface against harsh industrial environments. The 3300 XL 8 mm system delivers a constant 7.87 V/mm (200 mV/mil) scale factor when paired with the appropriate Proximitor sensor. Furthermore, the “CN” designation indicates compliance with specific regional industrial standards, making it a reliable choice for international projects. The internal construction minimizes thermal drift, which allows the probe to maintain high accuracy despite the significant temperature gradients found in steam turbines and centrifugal compressors.

Technical Specifications

The 330104-00-20-10-01-CN is built to exceed API 670 standards for machinery protection. Key technical data includes:

• Manufacturer: Bently Nevada (Baker Hughes)
• Model Number: 330104-00-20-10-01-CN
• Probe Type: 3300 XL 8 mm Reverse Mount
• Thread Size: 3/8-24 UNF
• Total Length: 1.0 meter (Option 10)
• Connector: Miniature coaxial ClickLoc connector (Option 01)
• Operating Temperature: -51 °C to +177 °C (-60 °F to +350 °F)
• Insulation: Fluorinated Ethylene Propylene (FEP)
• Weight: 0.20 kg
• Certification: UL, CE, and RoHS compliant

Industrial Versatility and Durability

Bently Nevada utilizes Teflon-based FEP insulation for the probe cable to ensure resistance against corrosive machine oils and moisture. Consequently, the 330104-00-20-10-01-CN remains operational in the demanding conditions of oil refineries, power plants, and petrochemical complexes. The ClickLoc connector system provides a secure, gold-plated connection that resists oxidation and remains stable even under high-frequency vibration. This reliability is essential for real-time monitoring and control systems where signal loss could result in unnecessary machinery trips or missed fault detections.

Asset Protection and Predictive Maintenance

By integrating this proximity probe into a 3500 series monitoring rack, operators can implement a comprehensive predictive maintenance strategy. The probe captures early indicators of shaft misalignment, bearing degradation, and rotor imbalances. By identifying these mechanical issues before they escalate, the system helps reduce unplanned downtime and extends the overall service life of critical assets. The modular 3300 XL architecture also allows for simplified hardware updates and replacements during routine turnarounds, providing long-term value for complex industrial operations.