Bently Nevada 3500 Series Machinery Monitoring System

Bently Nevada 3500 Series


Tested and Trusted by Thousands of Customers Worldwide

The Bently Nevada 3500 Monitoring System provides continuous, on-line monitoring suitable for machinery protection and asset condition monitoring applications. It represents our most capable and flexible system in a traditional rack-based design and offers numerous features and advantages not provided in other systems.

ProductsGeneral Overview & CapabilitiesMore Information

System Overview 3500 Series

System Overview
A comprehensive overview of the 3500 Series Monitoring System for everything you need to know about our system and ordering options.
3500 Series Brochure

3500 Series Datasheet
Product Manual
Manuals for the 3500 Series System provide installation, operation, and maintenance information. They can be ordered for individual module types, or as a complete set, and they are available in CD-ROM or hardcopy formats.
3500 Series System Datasheet

Maritime Approvals 3500 Series

3500 with Maritime Approvals
A 3500 Series Machinery Protection System can be ordered with DNV and ClassNK maritime certifications. 3500 systems are routinely used to monitor gas and steam turbines for ship propulsion and on-board electric power generation. They are also used on fixed and movable offshore oil & gas facilities to monitor critical machinery such as turbines, compressors, motors, generators, and pumps. These environments can be especially aggressive with airborne salt and moisture, vibration and shock, and other conditions that demand instrumentation be suitably robust.
Contact your Bently Nevada sales professional for current certificates

TUV Certificate 3500 Series

3500 with TÜV Certification and SIL Data
When vibration, thrust position, or overspeed detection applications require that a specific Safety Integrity Level (SIL) be met and documented, as discussed in global standards such as IEC 61508 and ISA S84.01, GE can supply the necessary reliability and availability engineering data for the monitoring system and its connected transducers.
3500 TÜV/SIL Datasheet


bopONLINE is designed for power generation balance of plant continuous online monitoring needs and is currently available only in the India region.
bopONLINE datasheet bopONLINE FactSheet

3500 Packaged Systems

3500 Packaged Systems
We also provide free-standing industrial enclosures for housing 3500 Systems and associated communications processors.

PreEngineered Packaged Systems Fact Sheet

Bently Nevada Standard Packaged Systems Designs Brochure

3500 Packaged Systems Larger Photo


3500 – Simply The Best

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 we have ever offered: The Bently Nevada 3500 Series Machinery Protection System.



3500 is designed to fully comply with the American Petroleum Institute’s Standard API 670, the world’s most widely used specification for machinery protection systems. For reciprocating compressor applications, 3500 meets API 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 as part of a safety instrumented system, TÜV Functional Safety Certification can be supplied for applications requiring up to Safety Integrity Level (SIL) 3. In addition, 3500 is approved to meet relevant Canadian Standards Association (CSA), Factory Mutual (FM), GOST, ATEX, and CE requirements.



We understand that our systems are routinely used not just for indication, but to provide auto-shutdown protection. That’s why – even in simplex mode – 3500 is the most reliable monitoring system we have ever offered with extensive self-checking and fault tolerant design features. It’s also why the system can be configured with various levels of redundancy, ranging from the addition of a second fully redundant power supply to complete triple modular redundant (TMR) configuration of selected or all channels - allowing even your most mission-critical applications to be addressed with confidence.



Connecting to condition monitoring and diagnostic software has never been easier. With 3500 there are no bulky external modules, no additional wiring, and no extra rack slots required. Simply use the Ethernet port in the 3500/22M Rack 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 combined with software configuration for virtually all monitor options. A variety of locally or remotely mounted displays are available, or you can operate 3500 without a display. The result is unparalleled flexibility to address almost any application.



The 3500 Series System has proven its value and dependability with customers everywhere, year after year. More than 20,000 racks are installed globally.



Below are just a few of the more common applications that can be easily addressed by the 3500 System:

• Steam turbines

• Hydraulic turbines

• Industrial gas turbines

• Aeroderivative gas turbines

• Reciprocating compressors

• Centrifugal compressors

• Axial compressors

• Screw compressors

• Gears

• Turbo-expanders

• Horizontal and vertical centrifugal pumps

• Reciprocating pumps

• Electric motors

• Generators

• Fans

• Blowers

• Agitators

• Mixers

• Centrifuges

• Pulp refiners

• Ball mills

• Crushers/pulverizers

• Extruders

• Pelletizers

• Cooling tower/heat exchanger fans

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

System Essentials Vibration and Position Relays Monitor Keyphasor Monitor  
System Essentials
These 3500 System Essentials provide the conditioned power needed to drive your rack system.
Vibration and Position
As key indicators of machinery condition, vibration and position are critical to understanding how your machinery assets are performing.
A variety of relay modules are available for your 3500 System to help meet the flexibility.
Keyphasor/Speed/Overspeed Monitors
The 3500 Series has two choices for speed measurements.
Temperature Monitor Reciprocating Monitor Aeroderivative Monitor Communication Monitor  
Temperature, Pressure and Process Variable
Need to measure pressure, temperature or a process variable such as flow in order to protect.
Reciprocating Compressor Monitors
The 3500 Series offers a wide variety of monitors specifically designed to measure the most critical parameters on reciprocating compressors.
Aeroderivative, Hydro and Hazardous Gas Monitors
Our aero-derivative and hydro monitors are top performers for collecting measurements on these unique machines.
Communication Gateways
3500's Communication Gateways get users digitally connected to a wide variety of process control systems.
Displays Monitor Transducers Accessories Monitor      
Want to view all the monitored parameters within the 3500 rack quickly and easily?
Harsh or hazardous environments can reek havoc on an unprotected monitoring system.

Descriptions English
200350 and 200355 Accelerometers Datasheet 200350 and 200355 Accelerometers Datasheet
3500 Series Brochure 3500 Series Brochure
3500 Series Datasheet 3500 Series Datasheet
3500 Series System Datasheet 3500 Series System Datasheet
3500 TUV/SIL Datasheet 3500 TUV/SIL Datasheet
3500/22 TDI Datasheet 3500/22 TDI Datasheet
3500/33 16-Channel Relay Fail-Safe IO Module Fact Sheet 3500/33 16-Channel Relay Fail-Safe IO Module Fact Sheet
ORBIT 3500 Maritime Approvals ORBIT 3500 Maritime  Approvals