



Introduction
The Bently Nevada 3500/25 Enhanced Keyphasor Module is a precision signal processing unit designed for rotor and vibration monitoring systems. From a technical engineering perspective, this module converts raw tachometer and rotor position signals into keyphasor outputs, providing critical input for condition monitoring and protective functions in high-speed rotating machinery.
Rather than functioning as a standalone measurement device, the 3500/25 module integrates within Bently Nevada 3500 Series systems to deliver accurate timing and phase reference for vibration analysis, enabling predictive maintenance and operational reliability.
Technical Specifications
| Item | Description |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 3500/25 Enhanced Keyphasor Module |
| Order Number | 149369-01+125800-01 |
| Module Type | Enhanced Keyphasor Module |
| Functional Role | Tachometer signal processing and keyphasor generation |
| System Compatibility | Bently Nevada 3500 Series Monitoring Systems |
| Installation | Rack-mounted within 3500 Series chassis |
| Electrical Interface | Input for tachometer signals, output for keyphasor signals |
| Dimensions | 119.9 × 24.4 × 256.5 mm (H x W x D) |
| Weight | Approx. 0.34 kg |
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