Description
The Bently Nevada 3500/25 (Part Number 149369-01) is a specialized Keyphasor module designed for the 3500 Machinery Protection System. Its primary function is to provide the critical phase reference signal required for machinery analysis. By capturing the pulse from a proximity probe observing a keyway or notch on a rotating shaft, this module delivers precise rotational speed and phase angle data, which is essential for determining vibration vectors, analyzing orbits, and performing diagnostic maintenance on rotating equipment.
Key Technical Specifications
- Module Function: Provides Keyphasor pulse signals for the 3500 rack system
- Input Channels: 2 independent buffered Keyphasor input channels
- Sensor Compatibility: Accepts signals from proximity probe transducers
- Signal Processing: Converts shaft pulse signals into a digital signal for the rack backplane
- Speed Range: Supports rotational speeds from 1 rpm to 25,500 rpm
- Buffering: Provides buffered outputs for each input channel for external diagnostic equipment
- Isolation: Internal isolation to prevent ground loops and signal noise
- Redundancy: Supports redundant module configuration within the same rack
- Status Indicators: Front-panel LEDs for “OK,” “TX/RX,” and “Bypass” status
- Configuration: Software-configurable via the 3500 Rack Configuration Software
Related Bently Nevada 3500 Series Model Recommendations
For an integrated and comprehensive vibration analysis and monitoring solution, the following 3500 modules are essential counterparts:
- 3500/22M: Transient Data Interface (TDI) module, required for advanced data logging.
- 3500/40M: Proximitor Monitor for measuring radial vibration.
- 3500/42M: Proximitor/Seismic Monitor for combined vibration and position analysis.
- 3500/15: Power Supply Module (Required for rack operation).
- 3500/92: Communication Gateway for integrating data into external DCS/PLC/SCADA systems.
- 3500/32M: 4-Channel Relay Module to trigger machine trips based on alarm logic.
- 3500/94M: VGA Display Module for local monitoring and alarm visualization.
- 3500/50M: Tachometer Module for secondary speed and overspeed monitoring.
- 3500/05: System Rack (The physical chassis housing the modules).
- 3500/01: Internal Barrier Module for intrinsically safe input protection.
