Product Overview

The Bently Nevada 330104-05-12-05-02-05 is a high-precision 8mm eddy current proximity sensor specifically engineered for reverse mount applications. This transducer is a fundamental component of the 3300 XL series, designed to observe the displacement of rotating shafts in critical industrial machinery. It provides non-contacting measurement by generating an electromagnetic field that translates the distance to a target surface into a proportional voltage signal when paired with a Proximitor Sensor.

This probe is essential for Turbine Supervisory Instrumentation (TSI), facilitating the monitoring of radial vibration and axial position. Its reverse mount design allows for installation through the machine casing or within specialized housing assemblies, making it ideal for fluid-film bearing machines, high-speed turbines, and centrifugal compressors where space or mounting orientation is a primary constraint.

Technical Characteristics and Construction

• Reverse Mount Configuration: Specially designed for installation from the opposite side of the mounting surface, ensuring flexibility in complex mechanical assemblies.

• API 670 Standard Compliance: Adheres to the 4th edition of the American Petroleum Institute’s standards for mechanical configuration, linear range, and thermal stability in machinery protection.

• Eddy Current Technology: Delivers high-frequency response for accurate tracking of both static position and high-speed dynamic vibration values.

• Universal Component Matching: Part of the "universal match" 3300 XL family, allowing for the interchangeability of probes, cables, and sensors without the need for manual bench calibration.

• Thermal Resilience: Engineered to withstand extreme industrial climates, maintaining measurement accuracy across a broad temperature spectrum.

• Backward Compatibility: Fully interoperable with legacy non-XL 3300 series 5mm and 8mm transducer systems, providing a reliable upgrade path for older installations.

Technical Specifications

• Manufacturer: Bently Nevada (Baker Hughes)

• Model Number: 330104-05-12-05-02-05

• Probe Diameter: 8 mm

• Mounting Style: Reverse Mount

• Cable Length: 1.0 Meter (3.3 feet)

• Linear Range: 2.0 mm (80 mils)

• Storage Temperature: -51°C to +177°C (-60°F to +351°F)

• Frequency Response: 0 Hz (DC) to 10 kHz

• Weight: 0.06 kg

• HS Code: 8537101190

• Origin: USA

Industrial Application Areas

• Machinery Protection: Continuous monitoring of radial shaft vibration in steam and gas turbines.

• Position Monitoring: Accurate measurement of axial thrust and rotor expansion in high-capacity compressors.

• Speed Sensing: Providing Keyphasor reference signals and rotational speed detection for overspeed protection systems.

• Predictive Maintenance: Real-time data acquisition for condition monitoring software to detect early-stage bearing wear or shaft misalignment.