Description

The Bently Nevada 140471-01 is a Prox/Velom I/O module designed for use with the 3500/42M Proximitor/Seismic Monitor system. This module serves as the physical interface between field-mounted transducers and the monitor signal conditioning circuitry within a 3500 rack. It features internal termination circuitry, eliminating the need for external termination blocks.

Features

• 4-channel input capability for proximity and seismic transducers.
• Provides power, common, signal, and shield connections for each transducer channel.
• Internal termination design for simplified field wiring.
• Supports channel pair programming for monitoring functions such as radial vibration, thrust position, acceleration, or shaft absolute measurement.
• Routes transducer signals to the main monitor module for alarm comparison and static value generation.
• Includes recorder outputs and OK relay contacts for system status monitoring.

Applications

• Upstream Production Platforms: Protection for offshore/FPSO pumps, compressors, and turbines.
• Refineries: Monitoring of FCCU/H2 compressors and crude pumps.
• LNG Plants: Safeguarding refrigeration and methane compressors.
• Power Generation: Protection for turbines, generators, and boiler feed pumps.
• Hydroelectric Facilities: Monitoring of low-speed alignment and thrust for hydro-turbines.

Technical Specifications

Installation Guidelines

• Ensure the 3500 rack power supply is de-energized before inserting or removing any module to prevent damage from transient voltages.
• Locate the I/O slot at the rear of the 3500 rack that corresponds to the front-mounted 3500/42M monitor module.
• Align the top and bottom edges of the 140471-01 module with the rack guide rails.
• Slide the module into the slot until the connectors are fully seated against the backplane.
• Verify that all field wiring is properly secured to the internal terminals according to the system wiring diagram.

FAQs

What is the 140471-01?

The Bently Nevada 140471-01 is a 4-channel I/O module with internal terminations, designed for the 3500/42M Proximitor/Seismic Monitor system to provide machinery protection and vibration monitoring.

What types of sensors does the 140471-01 support?

It supports proximity probes for radial vibration and thrust position, as well as velocity and acceleration sensors for case vibration monitoring.

Can I use external termination blocks with this module?

No, the 140471-01 is specifically designed with internal terminations; external termination blocks are not compatible with this specific model.