Specifications

Specifications and Ordering Information
Part Number 162096-01
Rev. F (03/07)
Page 6 of 12
machinery auto-shutdown circuit and should be used for general
annunciation purposes only.
Keyphasor Inputs
The 3500 System can accommodate up to four
1
Keyphasor transducers per rack by installing two
3500/25 Keyphasor modules in a rack
2
. Each 3500/25
is a half-height module that provides power and
termination for up to two Keyphasor transducers
each. When applications require Keyphasor
transducers, simply install a single 3500/25 module.
Keyphasor signals from the 3500/25 module(s) can be
routed to appropriate monitor modules via the 3500’s
rack backplane for use in speed, phase, tracking filter,
and other measurements.
Notes:
1. When more than four Keyphasor transducers must be used in a single rack,
contact the factory for details regarding special modifications available.
2. When two 3500/25 modules are used, they must be installed in the same
rack slot, one above the other.
Communications Gateway
With an appropriate Communications
Gateway module in the rack, installations
can digitally transfer selected status and
current value data to process control
systems, historians, plant computers, and
other relevant systems. The
Communication Gateway modules
support a variety of industry-standard
protocols and users can install multiple
Communications Gateway modules in a
rack when the system requires redundant
communications or must support multiple
communication protocols simultaneously.
The modules do not interfere with the
3500 System’s normal operations or
machinery protection functions, ensuring
that the monitoring system integrity is always
maintained, even in the unlikely event of a
Communications Gateway module failure.
The Communications Gateway supports both Ethernet
and serial communications media, allowing a variety
of wired and wireless topologies. Communications are
bi-directional, allowing selected data to be sent to and
retrieved from the 3500 System. In addition, when
installations use Ethernet to connect the
Communications Gateway to process control or other
systems, multiple computers running 3500
Configuration Software and/or 3500 Operator Display
Software can reside on the same network. This
eliminates the need for separate connections between
the software and the RIM.
Displays
The 3500 System provides the most flexible display
options ever offered by the Bently Nevada product line
as summarized in Table 2. Multiple displays can be
combined as needed to meet specific requirements for
local and remote indication of rack statuses,
measurements, and alarms.