Bently Nevada 140471-01: Shielded Extension Cable for Proximity Probe Systems

Product Description

The Bently Nevada 140471-01 is a high-performance shielded extension cable, a critical component in proximity probe systems for machinery protection and condition monitoring. Designed to connect proximity probes to signal conditioners or transmitters, this cable extends the reach of sensor installations, enabling flexible placement of probes on rotating machinery while maintaining signal integrity. Constructed with advanced shielding and durable insulation, it minimizes electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring accurate transmission of low-level eddy-current signals from probes monitoring shaft displacement, vibration, or position. Compatible with Bently Nevada’s 3300 and 3500 series proximity probes, it plays a vital role in maintaining reliable data flow in industrial monitoring systems.

Product Parameters

Parameter	Specification
Cable Type	Shielded extension cable for proximity probe systems
Length	5 meters (16.4 feet)
Compatibility	Bently Nevada 3300 nsv, 3300 XL, and 3500 series proximity probes
Impedance	50 Ω ± 5% (nominal) at 1 MHz
Signal Conductors	22 AWG stranded copper (twisted pair)
Shielding	Dual-layer shielding (foil + braid) with 95% coverage
Operating Temperature	-40°C to +125°C (-40°F to +257°F)
Connector Type	Male and female Bently Nevada proprietary connectors (compatible with 3300/3500 probes)
Insulation Material	FEP (Fluorinated Ethylene Propylene) for chemical and temperature resistance

Product Specifications

Series

The 140471-01 is part of Bently Nevada’s proximity probe system accessories, complementing the 3300 and 3500 series—industry-leading machinery protection platforms. This family includes proximity probes, transmitters, extension cables, and mounting hardware, all engineered for seamless integration. Renowned for precision and durability, these accessories ensure accurate signal transmission between sensors and monitoring modules, extending the reach of condition monitoring systems in large or complex machinery setups. The 140471-01 enhances the series by providing reliable, long-distance signal routing, critical for installations where probes and transmitters are separated by significant distances.

Features

Dual-Layer Shielding

Foil and braid shielding with 95% coverage minimizes EMI/RFI interference, ensuring clean signal transmission in electrically noisy environments (e.g., near motors, drives, or high-voltage equipment).

High-Temperature Insulation

FEP insulation withstands extreme temperatures (-40°C to +125°C), making it suitable for deployment in hot industrial settings like turbine enclosures and furnace areas.

Proprietary Connectors

Secure, weather-resistant connectors ensure a tight seal against moisture and dust, preventing signal degradation from environmental contaminants.

Flexible Routing

Small diameter and flexible construction allow easy routing through conduit, machinery enclosures, and tight spaces, simplifying installation in retrofitted or complex systems.

Compatibility with Key Probes

Designed for use with 3300 nsv, 3300 XL, and 3500 series proximity probes, ensuring seamless integration with Bently Nevada’s core monitoring systems.

Function

The primary function of the 140471-01 is to extend the distance between proximity probes and signal conditioners/transmitters while preserving signal integrity. Proximity probes generate low-level eddy-current signals that are susceptible to noise and attenuation over long distances. This cable’s shielding and twisted-pair conductors minimize interference and signal loss, ensuring the transmitter receives accurate data about shaft displacement, vibration, or position. By bridging physical gaps between sensors and monitoring modules, it enables flexible system design, allowing probes to be mounted directly on machinery while transmitters are placed in accessible control cabinets.

Use

In industrial settings, the cable is installed between proximity probes (mounted on bearing housings or shafts) and transmitters/monitoring modules (located in control rooms or equipment racks). It routes signals from probes monitoring turbine rotors, compressor shafts, or pump bearings, ensuring data reaches the monitoring system without degradation. Technicians terminate the cable using proprietary connectors, securing it with cable ties or conduit to prevent damage from vibration or machinery movement. During maintenance, the cable’s durability allows for repeated handling without compromising signal quality.

Application Fields

Power Generation

Connects proximity probes on steam/gas turbine rotors to transmitters in control rooms, enabling remote monitoring of shaft displacement and vibration in power plant turbine halls.

Oil and Gas

Extends signal paths from compressor shaft probes to monitoring modules in offshore platforms or refineries, where equipment is spread across large facilities.

Chemical Processing

Routes signals from agitator shaft probes to transmitters in control cabinets, ensuring accurate position monitoring in corrosive environments with chemical fumes.

Pulp and Paper

Links roller vibration probes on paper machines to monitoring systems, withstanding humid conditions and preventing signal interference from nearby motors.

Mining and Metals

Connects crusher and conveyor shaft probes to transmitters in maintenance sheds, bridging long distances in rugged mining sites while resisting dust and vibration.

In summary, the Bently Nevada 140471-01 is a vital extension cable that ensures reliable signal transmission in proximity probe systems. Its shielding, durability, and compatibility make it essential for industries requiring flexible, long-distance machinery condition monitoring, protecting critical assets and optimizing maintenance strategies.