Product Overview

The Bently Nevada 330180-91-CN is a high-performance signal conditioning module designed for the 3300 XL 8 mm Proximity Transducer System. This Proximitor sensor acts as the electronic interface for non-contacting displacement measurements, converting raw eddy-current signals from a proximity probe into a stabilized linear voltage output. The resulting signal is directly proportional to the gap distance between the probe tip and the target conductive surface, such as a machine shaft.

This specific "CN" variant is optimized for modular industrial environments, featuring a DIN-rail mounting configuration and factory calibration for a 9.0-meter (29.5 feet) total system length. It is a fundamental component of Turbine Supervisory Instrumentation (TSI), providing the essential data required for radial vibration analysis, axial thrust position monitoring, and Keyphasor speed sensing on critical rotating machinery.

Core Technical Characteristics

• Extended System Calibration: Specifically tuned for a 9.0-meter system length, ensuring linear accuracy and signal integrity when paired with matching 3300 XL probes and extension cables.

• Non-Contacting Precision: Delivers high-resolution measurement of shaft dynamics without physical wear, utilizing a standard scale factor of 7.87 V/mm (200 mV/mil).

• API 670 Standard Compliance: Fully adheres to the American Petroleum Institute’s benchmarks for linearity, frequency response, and thermal stability in machinery protection applications.

• Component Interchangeability: Part of the 3300 XL "universal match" architecture, allowing for the replacement of probes or cables without the need for manual bench calibration.

• RFI/EMI Shielding: Engineered with advanced resistance to radio frequency and electromagnetic interference, allowing for reliable operation in complex electrical environments.

• Simplified Integration: The DIN-rail mount design and integrated screw terminals facilitate fast installation in high-density control cabinets.

Technical Specifications

• Manufacturer: Bently Nevada (Baker Hughes)

• Model Number: 330180-91-CN

• Product Series: 3300 XL 8 mm Proximity Transducer System

• Mounting Type: 35mm DIN-Rail

• Total System Length: 9.0 Meters (29.5 ft)

• Frequency Response: 0.5 Hz to 12 kHz

• Linear Range: 2.0 mm (80 mils)

• Input Power: -17.5 VDC to -26 VDC

• Operating Temperature: -40°C to +85°C

• Weight: 0.55 kg

• Dimensions: 20.5 x 22.4 x 3.3 cm

• Origin: USA

• HS Code: 8537101190

Industrial Application Areas

• Turbine Protection: Essential for monitoring axial displacement and radial vibration in large steam and gas turbines.

• Centrifugal Compressors: Tracking rotor stability and bearing health in high-pressure oil and gas processing.

• Power Generation: High-fidelity Keyphasor signals for phase timing and rotational speed measurements on generators.

• Predictive Maintenance: Real-time data acquisition for industrial motors, fans, and gearboxes in heavy manufacturing.