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The 3500/50 is a 2 channel module that accepts input from proximity probes or magnetic pickups to determine shaft rotative speed, rotor acceleration, or rotor direction. The module compares these measurements against user-programmable alarm setpoints and generates alarms when the setpoints are violated.
Speed Monitoring, Setpoint Alarming and Speed Band Alarming
Speed Monitoring, Setpoint Alarming and Zero Speed Notification
Speed Monitoring, Setpoint Alarming and Rotor Acceleration Alarming
The 3500/50M Tachometer Module can be configured to supply conditioned Keyphasor signals to the backplane of the 3500 rack for use by other monitors. Therefore, you don't need a separate Keyphasor module in the rack. The 3500/50M Tachometer Module has a peak hold feature that stores the highest speed, the highest reverse speed, or the number of reverse rotations that the machine has reached. You can reset the peak values.
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 3500/50 Tachometer Module, 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.
Power Generation
Monitoring steam and gas turbine speeds to prevent overspeed events that could cause catastrophic failure. It also confirms rotors have reached the required speed for turning gear engagement.
Oil & Gas
Speed monitoring for centrifugal compressors. By measuring shaft speed, it helps identify potential surge conditions and ensures anti-surge valves actuate appropriately.
Chemical & Petrochemical
Monitoring large agitators or centrifuges. It ensures mixing speeds remain within process limits and prevents mechanical seal damage caused by unintentional reverse rotation.
Steel & Metallurgyy
Acceleration monitoring in blast furnace blowers. During start-up, it tracks rotor acceleration to ensure smooth passage through critical speeds without excessive vibration.
Pulp & Paper
Controlling paper machine dryer section roll speeds. It synchronizes the speed of roll sets to prevent sheet breaks caused by speed differentials.
The Bently Nevada 3500/50 Tachometer Module is a high-precision instrument designed for critical machinery protection across industries like power generation, oil and gas, and manufacturing. Its primary functions include monitoring shaft speed, rotor acceleration, and reverse rotation to prevent catastrophic mechanical failures. For successful implementation, users must ensure precise sensor configuration (such as pulse-per-revolution settings), maintain proper probe gap voltages, and employ rigorous shielding to mitigate electrical noise. Furthermore, always bypass interlocks before hot-swapping the module to avoid accidental machine trips, ensuring both operational safety and data integrity.
It is a Tachometer Module, a core component of the 3500 system used to measure speed, phase, and torque of rotating machinery.
How to use the 3500/50?
Insert it into a 3500 rack slot, connect speed probes (such as eddy current or magnetic sensors), and configure gear teeth counts and alarm thresholds via software.
What data does 3500/50 primarily monitor?
It measures real-time speed, reverse rotation, overspeed protection, and zero speed (turning gear) status.
Does 3500/50 provide alarm functions?
Yes. It supports Alert and Danger setpoints, triggering relays for shutdown protection if the speed limits are exceeded.
What probes must be used with the 3500/50?
It is typically paired with 3300 XL 8mm eddy current probes or magnetic pickups.
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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
How do we deliver
How do we deliver
If you need complete documents to handle special situations such as letters of credit, we can ship small packages in 'cargo mode'. We can arrange freight or air freight for you, or cooperate with your freight agent
Urgency
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
If you contact us by phone, fax, or email, we can also provide you with this information. The product price does not include shipping or insurance fee. If you need, we are happy to provide a shipping quote and also can provide weight and size information. If you require proforma invoice, please let us know if you would like us to quote the shipping cost or if you would like us to use your shipping account.
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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
Our strongest business
Global supply of automation parts. Automation spare parts procurement and global suppliers can reduce cost, save time, and decrease MRO fee.
Extend equipment lifespan
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
Sustainable supply chain solutions
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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