The Emerson A6120 (9199-00002) Vibration Monitoring Module is a high-precision condition monitoring device designed for real-time vibration analysis in critical rotating machinery.
1. Key Functions
Vibration Measurement:
Continuously monitors velocity, acceleration, and displacement (typically via proximity probes or accelerometers).
Dynamic Signal Processing:
Performs FFT (Fast Fourier Transform) for spectral analysis to detect faults (e.g., imbalance, misalignment, bearing wear).
Alarm & Trip Protection:
Generates 4-20mA outputs and relay trips if vibration exceeds preset thresholds (API 670 compliant).
Integration with Control Systems:
Interfaces with Emerson Ovation™/Bently Nevada 3500 series via Modbus TCP or Ethernet/IP.
2. Technical Specifications
Input Channels: 2/4/8 channels (configurable for seismic/eddy current sensors).
Frequency Range: 0.5 Hz – 10 kHz (dependent on sensor type).
Dynamic Range: Up to 100 g pk (accelerometers) or 25 mm/s RMS (velocity).
Certifications: ATEX/IECEx (hazardous areas), SIL 2/3 (functional safety).
3. Applications
Power Generation: Steam/gas turbine protection (GE, Siemens, Alstom).
Oil & Gas: Compressor and pump health monitoring (API 670/ISO 10816).
Industrial: Predictive maintenance for motors, fans, and gearboxes.
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