Specifications

Specifications and Ordering Information
Part Number 162096-01
Rev. F (03/07)
Page 9 of 12
Notes:
1. For this mounting option only, the Display Interface
Module (DIM) must occupy slot 15 (right-most slot) of
the rack.
2. With the use of a special external power supply, the
display can be located up to 1219 metres (4000 feet)
from the 3500 System.
3. It is recommended that the display be located within
7.6 metres (25 feet) of the 3500 rack., as the video
driver circuit is optimized for this range. Lengths above
25 feet will degrade the picture quality. When an
extension is necessary, a special KVM Extender is
available. However, even with the KVM Extender, there
will be some reduction in picture quality. Typically, the
picture image will still be acceptable. The KVM Extender
must be used indoors, and it is not rated for use in
hazardous areas.
4. Distances greater than 4000 feet are supported when
Ethernet, rather than serial communications, is used
between the rack and the 3500/95 display. Wireless
Ethernet can also be used.
Intrinsic Safety Barriers or Galvanic Isolators
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, pre-
engineered 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.
Note: Although not a required component of the 3500 System,
relays are strongly recommended as the appropriate way to
interconnect the 3500 System in auto-shutdown applications.
Analog (e.g. 4 to 20 mA) and digital (e.g. Modbus

) connections are
intended for operator annunciation and trending purposes and do
not provide the fault tolerance or integrity necessary for highly
reliable machinery shutdown purposes.
Highly Flexible Display Options
Displays can range from local units mounted directly
on the rack’s front panel, to remote displays using