Product Overview

The Bently Nevada 330101-20-36-10-02-00 is a high-precision eddy current proximity probe, a foundational component of the 3300 XL transducer system. This non-contacting sensor is designed to observe shaft vibration and position with micron-level accuracy. By generating a controlled electromagnetic field at the probe tip, it detects the displacement of a conductive target (typically a rotating shaft) and provides high-fidelity data to monitoring instrumentation. Engineered for the Turbine Supervisory Instrumentation (TSI) environment, this probe is essential for tracking radial vibration and axial thrust position in high-criticality machinery. This specific model features a 3/8-24 UNF thread with a 2.0-inch unthreaded length and a 3.6-inch total case length, providing a medium-depth reach for industrial machine housings.

Electromechanical Properties and Hardware Configuration

• Sensor Tip Diameter: 8 mm

• Thread Specification: 3/8-24 UNF-2A (Standard Fractional)

• Unthreaded Length: 2.0 inches (approx. 51 mm)

• Overall Case Length: 3.6 inches (approx. 91 mm)

• Cable Lead length: 1.0 Meter (approx. 3.3 feet)

• Connector Interface: Miniature ClickLoc coaxial connector with gold-plated contacts

• Protective Shielding: Integrated stainless steel flexible armor for mechanical lead protection

• Calibration Material: Factory standardized for AISI 4140 steel

• Thermal Endurance: -51°C to +177°C (-60°F to +351°F) operating range

• Output Sensitivity: 7.87 V/mm (200 mV/mil) when integrated with a 3300 XL Proximitor

Industrial Applications and Machinery Deployment

This proximity transducer is primarily utilized in the power generation, petrochemical, and manufacturing sectors to protect high-value rotating assets. Its 3.6-inch armored case is frequently selected for steam turbines, centrifugal compressors, and large-scale industrial pumps where the sensor must penetrate through bearing caps or seal housings to reach the shaft surface. The 330101-20-36-10-02-00 is critical for identifying mechanical faults such as rotor unbalance, shaft misalignment, and bearing wear. By delivering continuous displacement signals to Bently Nevada 3500 series protection racks, it facilitates real-time safety interlocks and supports proactive predictive maintenance strategies, effectively preventing catastrophic equipment failures.