3500 series

Machinery protection system
Bently Nevada Asset Condition MonitoringWhy protect
and monitor?
Whether generating power, compressing and pumping
fluids, or driving process equipment, industries rely on
critical machinery every hour of every day. In thesesettings, machinery failure isn’t just inconvenient, it can becatastrophic. While repair costs alone can be staggering,
the partial or even total loss of production resulting fromcritical machinery failure – sometimes worth millions per
day – can mean the difference between profit and loss
for the entire year. With so much at stake, mechanicalcondition monitoring is more than just a good idea, it’s anecessity.
Continuously monitoring critical asset parameters such as
vibration, temperature, speed, and numerous other conditionindicators is a proven method for anticipating and preventing
mechanical failures – proven in tens of thousands of industrial
facilities around the world by delivering tangible benefits suchas:
Improved protection from catastrophic failures
Better machinery reliability/availability
Fewer process interruptions
Enhanced maintenance/outage planning
Lower maintenance and repair costs
Longer intervals between outages
Reduced insurance premiums
And when it comes to protecting and monitoring criticalmachinery, one name has proven itself above all others:
Bently Nevada†.

Why Bently Nevada Condition Monitoring?
Bently Nevada machinery protection and monitoring systems
span more than a dozen different models deployed during thelast 60 years. Combined, they comprise the largest installedbase of permanently installed transducers and monitoring
channels in the world. It’s a position of trust that has been
earned over more than six decades of learning, refining,
and improving our solutions to meet the industry’s mostdemanding applications. Applications that require the highest
integrity. Applications where false trips or missed trips simply
cannot be tolerated.
It’s not just our products, it’s our people. Our reputation forthe highest quality, best value in the industry is born of aculture that “takes excellent care of our customers.” When
you choose our condition monitoring solutions, you get it all:the best people, the best products; the best service; the bestsolutions - together generating the best value.
For more than half a century, Bently Nevada products havebeen world-renowned as the standard by which all others
are measured. Because after all, with so much riding on yourmachinery, why trust anyone else?

2Experience
With more than six million transducers and monitoring
channels installed worldwide, more end users trust theirmachinery to Bently Nevada’s continuous monitoring
systems than anyone else. We are also the supplier of choice
to nearly every major machinery manufacturer in the world.

TechnologyToday, although our products number in the thousands, wenever rest. Each year, tens of millions of dollars are invested inexpanding and improving our technology with the purpose of
better serving our customers. Better technology that creates
better value is our passion.

Technical support
Behind everything we deliver, you’ll find our unwaveringcommitment to provide the best technical support to ourcustomers. No matter where in the world you are, or whattime of the day, a knowledgeable professional with technicalexperience is standing by 24/7 to assist you with answers toyour technical questions. We also have the ability to supply
many emergency parts and services after traditional working
hours. Additionally, our state-of-the-art knowledge database
tracks every support call, every question, and every answer,
allowing our global team to deliver faster, more complete
support than ever before.
33500 – Simply the best

Bently Nevada follows closely the development and changes
in these standards and continually demonstrates ourcapacity and commitment to be in sync with them as theychange and evolve. This continued focus and investment
in regulatory excellence ensures our customers don’t haveto worry about deploying a non-compliant solution that
may later require significant update or replacement. Acompliance miss has the potential for exposure to not only
catastrophic consequences, but also can lead to fines fromgovernments and inspection agencies as well as impact on
insurance rates and reputation. Baker Hughes Bently Nevada
is committed to continued compliance leadership and fullregulatory excellence.

The 3500 Series system has proven its value anddependability with customers everywhere, year after year,with more than 100,000 racks installed globally.

3500/91/92

3500/77M

3500/72M

3500/70M

3500/64M

3500/62

3500/60/61/65

Radial position (proximity probes)
Axial position (proximity probes)
Eccentricity (proximity probes)
Seismic vibration (velocitytransducers/accelerometers)
Shaft absolute (proximity and seismic)
Aeroderivative gas turbine
casing vibration

Flexible

Field-proven

3500/50

Radial vibration (proximity probes)

Connecting to condition monitoring and diagnostic software
has never been easier. With the 3500 there are no bulky
external modules, no additional wiring, and no extra rackslots required. Simply use the Ethernet port in the 3500/22M
Transient Data Interface Module and a single network cable
to communicate with our System 1† software. Connecting
to plant control and automation systems is straightforward
as well. Simply add a communication gateway module.
You can even add multiple gateways when communication
redundancy is required or when multiple systems must be
supported with differing protocols.
The 3500 Series features the industry’s most extensive
selection of machinery measurement parameters combinedwith software configuration for virtually all monitor options.
Local or remote mounted displays are available, or you canoperate the 3500 without a display. The result is unparalleledflexibility to address almost any application.

3500/46M

Phase reference

Differential expansion
Ramp differential expansion

Measurements

The 3500 is designed to fully comply with the American
Petroleum Institute’s Standard API 670, the world’s mostwidely used specification for machinery protection systems.
For reciprocating compressor applications, the 3500 meetsAPI 618 requirements as well. It can also be ordered with DNV
and Class NK certifications for maritime applications such as
offshore platforms and ship propulsion. And, when used aspart of a safety instrumented system, third party FunctionalSafety Certification can be supplied for applications requiring
up to Safety Integrity Level (SIL) 2. In addition, the 3500 is
approved to meet relevant Canadian Standards Association(CSA), Factory Mutual (FM), GOST, ATEX, and CE requirements.

3500/45

Connected

We understand that our systems are routinely used not justfor indication, but to provide auto-shutdown protection.
That’s why – even in simplex mode – the 3500 is the mostreliable monitoring system we have ever offered withextensive self-checking and fault tolerant design features.

3500/44M

Certified

3500 Series
measurement andoutput capabilities

3500/42M

Reliable

3500/32/33

Beginning with the 5000 Series in the 1960s, we’ve introduced
seven successive generations of highly successful
monitoring platforms. Today, that experience is embodied
in the most advanced, powerful, and reliable system wehave ever offered: The Bently Nevada 3500 Series Machinery
Protection System.

3500/25

Monitor modules

Complementary differential expansion
Case expansion
Valve position
Hydro turbine/generator vibration
Hydro generator air gap
Machine operating state (discrete input)
Rotor speed
Rotor speed rate-of-change (acceleration)Rotor zero speed (turning gear engagement)
Reverse rotation
RelaysTemperature (direct/average/differential)1
Process variable signals(4-20 mA, 1-5 Vdc, etc.)
Gas turbine combustor instabilities
Reciprocating compressor impulse/velocity
Reciprocating compressor rod position
Reciprocating compressor cylinder pressure
Communication gateway
1. The 3500/60 and /61 are 6-channel monitors. The 3500/65 is a 16-channel monitor.

455

Buffered outputs – every
dynamic input signal isconveniently available atthe front panel via buffered
output connectors for easyconnection to portable andtest instrumentation.

Digital communications – the 3500/92
Communications Gateway supports®
Modbus and Modbus/TCP protocols via
serial (RS232/422/485) or Ethernet links
for digital communications with PLCs,DCSs, and other instrument andautomation platforms. Multiple gateways
can be installed in a single rack for link
redundancy or when multiple protocols
are needed.

Keyphasor module – accepts
single- and ulti-event-per-turn
signals from proximity probes
and magnetic pickups. Astandard rack canaccommodate up to four
Keyphasor† signals (two 3500/25modules), and special
modifications are available whenmore than four Keyphasor
signals are required.

3500/15 Power supply –accepts worldwide AC/DC
voltages and frequencies
and can be supplied fully
redundant to assure
uninterrupted performance.

Industry-standard 19” rack size –provides more than twice thechannel density of previoussystems. Available in both EIA rackand bulkhead mounting versions,along with integral (standard) orexternal field wiring termination
blocks (optional) for maximum
installation flexibility.

Keylock security – allmonitor modules aresoftware configurable via
the 3500’s Transient Data
Interface Module – keylockable to prevent
unauthorized tampering.

VGA display module – The 3500/94M
VGA module displays all 3500
machinery protection system
information, including:• System event list
• Alarm event list
• All module and channel data
• Alarm and OK status• Nine Custom display options

Analog communications –monitor module channels
are available with analog
4-20 mA proportional
outputs for process control
systems and other
instrumentation.

Transient Data Interface(TDI) – provides
configuration interface aswell as single-cableconnection to System 1
software via conventional
wired or wireless Ethernet
networks. The 3500’s
advanced design ensuresthat simultaneous dataacquisition occurs for all
channels in the rack.

6Multiple parameters from each channel– radial vibration channels can provide
eight individual parameters (overall, gap,
1X amplitude/phase, 2X amplitude/phase,
Not 1X, Smax), meaning a 4-channel
monitor actually provides up to 32
channels of measurements. Alarms canbe set on any or all 8 parameters fromeach channel.

Built-in Intrinsic Safety (I.S.)
barriers – I/O modules can beordered with or without internallymounted I.S. barriers to decrease
wiring, increase accuracy, and reduce
installation costs when hazardous
environments require intrinsically safe
installation practices.

Supports either the 10" or 15" Advantech
VGA touch screen displays. These
compact, durable displays aredesigned for excellent viewing quality
in industrial applications. The 10"
Advantech display is certified forhazardous environments

Hot-swappable
modules – for easeof maintenance andmaximum uptime,
modules can beremoved andreinserted without
removing rack power.

Relay modules –software-programmabl
e voting logic provides
unmatched flexibility. 4and 16-channel
versions available.

7

Applications and industries
The table on page 5 summarizes the enormous selectionof measurement types available in the 3500. This allows it
to be applied to an extremely wide-range of rotating andreciprocating machinery in many industries. Below are justa few of the more common applications that can be easily
addressed by the 3500 System.

If your specific machine doesn’t appear on the list, justask us. Chances are, our applications engineers havealready developed a solution that’s right for you. And,
with our extensive custom applications capabilities, wecan easily modify off-the-shelf 3500 solutions to handle
your nonstandard applications and signal processing
requirements.

• Steam turbines• Generators• Hydraulic turbines• Fans• Industrial gas turbines• Blowers• Aeroderivative gas turbines• Agitators• Reciprocating compressors• Mixers• Centrifugal compressors• Centrifuges• Axial compressors• Pulp refiners• Screw compressors• Ball mills• Gears• Crushers/pulverizers• Turbo-expanders• Extruders• Horizontal and vertical centrifugal pumps• Pelletizers• Reciprocating pumps• Cooling tower/heat exchanger fans

• Electric motors

Service and support
We design and manufacture the 3500 system so there’s
nobody better equipped than Bently Nevada to professionallyinstall and support these products.
Bently Nevada Services offer complete lifecycle support
coverage from initial design, commissioning and integration
with your operating processes, and continue throughout
the operational life of your facility with available upgrades,replacements, and retrofits. This enables you to get the mostout of your investment. Our service offerings are carefully
developed to ensure you realize the maximum benefits oursolutions have on your operation. Bently Nevada service
professionals undergo rigorous training and certification
processes developed through our 60+ years of machinery
protection and conditioning monitoring experience. This
ensures we provide the highest quality and most expert
services in the industry. With more than 500 service andsupport professionals in over 50 countries we have the global
reach and local presence to be there with expert support
when and where you need us.

Bently Nevada service menu
Get it right the 1st time• Ensure your assets are protected and monitored when you’re ready to startup
Implementation services• Avoid costly delays and rework• One source to design, plan, manage, and execute the installation• Avoid startup trips due to improper installation and configuration
Keep your System healthy and optimized• Prevent instrumentation related false trips

Proactive support• Prevent and minimize potential data loss events• Keep up to date and compliant with the best technologies available• Access the expert support you need when you need it mostActionable insights you can trust• Understand your asset health to optimize outage and maintenance planning

Asset Health and consulting• Plug in to our global network of machinery experts with remote monitoring• Professional OEM agnostic machinery diagnostics when and where you need it• Custom analytic development and tuning to pinpoint specific conditions
Stay ahead of evolving cyber threats

Cybersecurity

1• Ensure your system is up to date and protected as threats continually evolve• Identify and mitigate cybersecurity risks to your operation• Keep your system both secure and accessible with advanced security
technologies and architectures leveraging data diodes and database replication
Critical skills that amplify your machinery management capabilities

Training and education• Enable your personnel to operate and maintain your monitoring and protection system• Enable your operation to maximize the value of your system leveraging expert productand application training and knowledge

1. https://www.us-cert.gov/sites/default/files/documents/Seven%20Steps%20to%20Effectively%20
Defend%20Industrial%20Control%20Systems_S508C.pdf

89

System 1
System 1†, connected to your 3500 Monitoring System,
delivers the comprehensive machinery wide diagnostic HMI
capability users need to make informed decisions on how toproactively manage their machinery.

Connectivity
Seamless connectivity to Bently Nevada’s 3500 machinery
protection system with full access to available trend,
waveform, and event data. Standard integration to control
system PLCs through OPC DA protocol with full access toapplicable process data, first-outs, permissives, surge
control, and set points.

Visualization and management
Complete Diagnostic HMI desktop-based application,
designed to enable rich HMI overviews, extensive trend
diagnostics, vibration analysis, and proactive condition
monitoring.

S1

Plant-wide scalability
Ability to scale connectivity beyond 3500 and the control
system to monitor more machinery leveraging other Bently
Nevada online, scanning, or portable devices in the same
System 1 platform.

Comprehensive diagnostic HMI implementation
Standardized & holistic machinery configurations based on
Bently Nevada best practices for vibration and process data.
Standard data connectivity (OPC, 3500, etc.) for overall machine
and key sub-systems (vibration, lube, seal, surge, etc.).

Customer solution

Plant-wide data with context and clarity

ConnectivityAnalytics

Visualization

Optional hosted and/or remote monitoring
Access to Bently Nevada machinery experts throughstandardized remote monitoring.

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