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The 3500/42E 285691-01 is an enhanced four-channel proximity/vibration monitoring module in the Bently Nevada 3500 series mechanical protection system.
Radial Vibration
Thrust Position
Differential Expansion
The 3500/42E Vibration Monitor is a 4-channel monitor that accepts input from proximity and seismic transducers, conditions the signal to provide various vibration and position measurements, and compares the conditioned signals with user-programmable alarms.The 3500/42E 285691-01 represents the latest hardware iteration of the 4-channel Proximitor and Seismic Monitor within the Bently Nevada 3500 System. This highly integrated module is engineered to accept and process raw inputs from both proximity and seismic transducers. Beyond conditioning signals to provide critical measurements such as radial vibration, thrust position, and differential expansion, the 285691-01 hardware architecture offers enhanced signal linearity and superior stability in high electromagnetic interference (EMI) environments. By continuously comparing conditioned signals with user-programmable alarm setpoints, it delivers millisecond-level machinery protection responses via the 3500 rack’s backplane logic.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 3500/42E 285691-01 Proximitor/Seismic Monitor Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas
Monitoring shaft vibration of LNG centrifugal compressors to prevent seal damage.
Thermal Power
Monitoring thrust position of ultra-supercritical steam turbines to prevent catastrophic contact.
Nuclear Power
Used for condition monitoring and protection of main coolant pumps and emergency diesel generators.
Water Treatment
Monitoring casing vibration of large multi-stage feedwater pumps to prevent premature bearing failure.
Pulp & Paper
Monitoring bearing vibration of high-speed paper machine dryers and vacuum pumps.
Pharmaceutical
Monitoring rotating components of large freeze-dryer vacuum pumps and cleanroom HVAC systems.
When using the 3500/42E 285691-01, the critical focus should be on hardware-software alignment and signal integrity. Ensure the rear I/O module matches the transducer type (Proximity or Seismic) configured in the software, and precisely set the installation gap voltage to maintain operation within the linear range. Additionally, always switch the respective channels to Bypass mode before hot-swapping or maintenance, and routinely verify signal quality via the buffered outputs to prevent false alarms or interlock trips caused by loose wiring or electromagnetic interference.
It is the hardware part number for the 4-channel Proximitor/Seismic Monitor module in the Bently Nevada 3500 series.
What are the improvements in 3500/42E 285691-01 compared to older versions?
It is an updated hardware design offering better component availability and long-term stability while remaining functionally compatible.
How to install the 3500/42E 285691-01?
Insert it vertically into any monitor slot (1 through 14) of the 3500 rack and use it with the corresponding I/O module.
How many signal types can the 3500/42E 285691-01 handle?
It can process signals from proximity (displacement), acceleration, and velocity transducers.
Which I/O module must be paired with the 3500/42E 285691-01?
It is typically paired with the 128229-01 (Standard I/O) or 128240-01 (Internal Terminations I/O).
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We give you access to a global supply of automation parts at your fingertips, ensuring that manufacturers around the world can avoid unnecessary downtime and continue to do what they do best – making our world possible.
Focus on supplying surplus and new automation spare parts With abundant inventory and partnerships with top manufacturers, Apter Power ensure high-quality solutions for your industrial requirements
Key control components
As a trustworthy supplier of surplus components, we procure parts from projects with excess inventory, system upgrades, factory shutdowns, and surplus suppliers. Our strict quality control ensure that our products achieve optimal performance
Warehouse Reserve
Many difficult to find parts, including PLC, HMI, DCS, panel controllers, industrial PCs, and VFDs. These parts help extend the lifespan of your existing system, reduce expensive replacement costs, and minimize downtime, thereby keeping your operations running smoothly
20 years of outstanding experience in industrial automation supply
For over 20 years, Apter Power always been a trustworthy leader in the industrial automation supply industry. As a trustworthy supplier of automation parts, we continuously expand our product line, expand our global customer base, and have won numerous awards
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How do we deliver
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If you require any other type of emergency or carrier, we need you to clearly specify this information on the order. We can usually ship on the same day. We do not charge additional fee, but it will depend on the expedited shipping option you use. Please let us know your level of urgency, and we will try our best to ship in the same day once you place order to us.
Freight Charge
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Urgent requirements for automation or control components?
Urgent shipment of industrial automation parts
Shutdown will waste your time and money - always ready to assist you. As a reliable supplier of automation parts, we provide fast shipping services to quickly deliver critical components to your hands, minimizing downtime to the greatest extent possible.
Obsolute or hard to find parts
We focus on purchasing necessary and rare automation parts to maintain the operation of the manufacturing industry. No matter the year, scarcity, or location of the parts, we will find and deliver the parts you need
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Global supply of automation parts. Automation spare parts procurement and global suppliers can reduce cost, save time, and decrease MRO fee.
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As one of the most trusted suppliers of industrial automation parts, we deeply understand the importance of reliable performance. That's why we exceed industry standards, whether you're replacing old components or maintaining critical systems
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Our long-term success stems from our commitment to quality, reliability, and customer satisfaction. Whether you are purchasing rare spare parts. Apter Power stands out among industrial automation parts suppliers with its rich experience, high-quality service, and unparalleled quality assurance.
Why choose Apter Power?
Spare parts warehouse
We have a warehouse of 50000 square meters, providing tens of thousands of different spare parts, and 24/7 online sales personnel to provide support for you. Always available, crucial for both you and us.
Fast delivery
Experienced team members assist in providing our customers with fast delivery of automation and control components, delivering to over 60000 users worldwide.
High quality new spare parts service
Our extensive inventory of control systems (DCS, PLC, CNC), panel controllers, human-machine interfaces (HMI), industrial PCs, drivers, and power spare parts helps you reduce maintenance costs. Provide industrial automation spare parts that manufacturers no longer provide. We are a leading supplier that provides rare industrial automation parts to businesses of all sizes, with a strong track record of delivering the highest quality parts and services to customers at highly competitive price.
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