BENTLY 3500/20 Controller for Industrial Monitoring Systems
The BENTLY 3500/20 controller serves as a critical component in vibration monitoring systems for rotating machinery. Primarily used in power plants, refineries, and heavy manufacturing facilities, this controller continuously tracks shaft vibration, bearing health, and rotor dynamics to prevent catastrophic equipment failures. Its 220V operation and 50kHz output frequency make it particularly suited for high-speed turbine monitoring applications where precision matters.
Technical Specifications
| Attribute | Specification |
|---|---|
| Brand | BENTLY NEVADA™ |
| Series | 3500 System |
| Module Type | Vibration Monitoring Controller |
| Part Number | 3500/20 125744-02 |
| Certification | ATEX, IECEx, FM Approved |


Real-World Applications
We’ve deployed this controller in various demanding environments – from offshore gas turbine monitoring systems where salt corrosion resistance matters, to paper mill operations where continuous 24/7 monitoring prevents expensive downtime. One customer in Texas reported catching a developing compressor imbalance issue 72 hours before failure would have occurred, saving an estimated $150k in repairs.
Our inventory includes both standard 3500/20 units and specialized variants like the 3500/22M for magnetic bearing applications. For legacy system upgrades, we can cross-reference with older 3300 series components while maintaining backward compatibility.

Our Value Proposition
While the 3500/20 itself carries a standard 1-year warranty, our service extends beyond that. We maintain 16 regional warehouses across 6 countries with over 8,000 BENTLY spares in stock – last month alone we fulfilled 14 emergency turbine monitoring orders within 48 hours.
Need specific pricing? Contact Linda via WhatsApp or email abbdcs36@gmail.com – we’ll provide current stock levels and competitive pricing based on your quantity requirements. Our engineers can also help cross-reference with alternative models like the 3500/42M if system requirements change.
ABB-WORLD, 2-8, 235 Golden Horse Street, Tsim Sha Tsui, Yau Tsim Mong District, Hong Kong, China
All products carry a minimum 12-month quality warranty














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