Bently3500 System Overview

For applications where the transducers are located in a hazardous area, the 3500 System can be used with internal or external intrinsic safety barriers. However, the 3500 option for internal safety barriers is generally preferable to external barriers because this option saves cost, requires no extra cabinet space, and needs no additional wiring. Internal barriers improve safety because the connections are pre-wired, reducing the possibility for errors introduced by wiring additional external connections between monitors and barriers. Internal barriers also improve quality because, unlike external barriers, they require no special monitor scale factor calibration to compensate for voltage drop across the barrier. For additional information on 3500 internal barriers, refer to datasheet 141495-01. For those that prefer the use of galvanic isolators to address intrinsic safety requirements, preengineered external galvanic isolators and an appropriate housing are available. For additional information on 3500 galvanic isolators, refer to datasheet 141714-01.

Applications

The 3500 System is intended for continuous, permanent monitoring of rotating and reciprocating machinery in a variety of industries. It is specifically designed for use in auto-shutdown machinery protection applications that require extremely high reliability and availability. Machine types addressed by the 3500 System include but are not limited to

Industrial gas and steam turbines in power generation and mechanical drive service Aeroderivative gas turbines in power generation and mechanical drive service Hydraulic (Hydro) turbines in power generation service Compressors (air/process gas, radial/axial, centrifugal/positive displacement) Turbo Expanders Electric motors and generators Exciters Gear boxes Pumps (centrifugal and positive displacement) Fans Blowers Reciprocating compressors Extruders and pelletizers In addition, GE’s Bently Nevada Custom Products engineering, can often address special requirements for custom configuration of an existing monitor type or modifications to a standard monitor type. Contact your local sales professional for further information.

Features Digital and Analog Communications The 3500 System features separate, concurrent digital communication capabilities for connection to:

System 1 machinery management software using Bently Nevada proprietary protocols via Ethernet connections Process control and other plant automation systems using industry-standard protocols via the 3500’s Communications Gateway module Bently Nevada condition monitoring systems via pre-engineered Data Manager ports which interface to an appropriate external communications processor such as TDXnet, TDIX, or DDIX 3500 Configuration and Display software In addition, analog (4 to 20 mA and relay) outputs are available for connection to older plant controls that cannot support digital interfaces.