Product Overview

The Bently Nevada 330180-X1-00, featuring the 145004-12 factory modification, is a high-performance Proximitor Sensor designed for the 3300 XL 8mm Proximity Transducer System. This module is the electronic heart of the displacement sensing chain, responsible for providing the excitation signal to the proximity probe and conditioning the returned radio frequency (RF) signal. The result is a highly accurate DC voltage output that is directly proportional to the physical gap between the probe tip and the target material.

As a core component of Turbine Supervisory Instrumentation (TSI), this Proximitor enables the simultaneous measurement of static DC parameters—such as axial thrust position—and high-frequency AC parameters, including radial vibration. The MOD: 145004-12 designation indicates a specialized configuration within the 3300 system to meet specific electrical matching requirements for industrial monitoring applications.

Technical Characteristics and Circuit Performance

• Signal Conditioning Precision: Effectively converts complex impedance changes into a linear voltage signal, providing the foundation for machinery protection and predictive maintenance data.

• Thermal Stability: Engineered to maintain signal integrity across an expansive temperature range of -40°C to +85°C, making it suitable for unconditioned industrial environments near rotating machinery.

• Standard Power Requirements: Operates on a standard -24 VDC power supply, facilitating easy integration with Bently Nevada 3500 racks or other Distributed Control Systems (DCS).

• System Flexibility: Optimized for use with 3300 XL 8mm probes and extension cables, ensuring a consistent Scale Factor of 7.87 V/mm (200 mV/mil).

• Industrial Durability: Features a robust housing designed to resist electromagnetic interference (EMI) and protect internal sensitive electronics from the harsh conditions of power plants and refineries.

• Maintenance Optimization: Enables precise Keyphasor® and speed measurements, allowing operators to identify phase-related vibration issues and rotational speeds with high fidelity.

Technical Specifications

• Manufacturer: Bently Nevada (Baker Hughes)

• Model Number: 330180-X1-00

• Modification Identifier: MOD: 145004-12

• Module Type: Proximitor Sensor

• System Series: 3300 XL 8mm

• Input Voltage: -24 VDC (Nominal)

• Output Resistance: 50 Ω

• Linear Range: 2.0 mm (80 mils)

• Weight: 0.06 kg

• Dimensions: 1.8 x 1.6 x 12.3 cm

• HS Code: 8537101190

• Country of Origin: USA

Industrial Application Areas

• Fluid-Film Bearing Machinery: Essential for monitoring radial vibration in high-speed turbines and centrifugal compressors.

• Thrust Position Monitoring: Tracking axial movement in steam and gas turbines to prevent catastrophic internal contact.

• Rotational Speed Analysis: Providing Keyphasor signals for phase timing and RPM tracking in complex machinery trains.

• Asset Protection: Primary signal source for machinery protection systems (MPS) across oil & gas and power generation sectors.