Bently Nevada 3500/42M Seismic Monitor

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Bently Nevada 3500/42M Seismic Monitor

Product Overview

The 3500/42M is a four-channel monitoring module designed for machinery protection systems, capable of processing inputs from proximity probes and seismic sensors (accelerometers/velocity sensors). It provides vibration and position measurements while comparing signals against user-programmable alarm setpoints to trigger alerts for mechanical protection .

Key Features

✅ Multi-Sensor Compatibility

• Accepts inputs from proximity probes (displacement), accelerometers, and velocity sensors .

• Supports radial vibration, thrust position, differential expansion, eccentricity, REBAM, acceleration, and speed measurements .

✅ Advanced Signal Processing

• Programmable filters:

  • Direct/Notch Filters: 4 Hz–4 kHz or 1 Hz–600 Hz (±1% accuracy) .

  • Gap/1X/2X Filters: For precise harmonic analysis (e.g., -57.7 dB suppression for 1X/2X vectors) .

• Static values: Outputs include amplitude, phase lag, and Smax for diagnostics .

✅ Alarm & Safety Functions

• Configurable thresholds: Alarm/danger setpoints adjustable from 0–100% of full scale (accuracy ±0.13%) .

• Dual relay outputs: For fault signaling (configurable as NO/NC) .

✅ Robust Industrial Design

• Operating temp: -40°C to +85°C (IP65-rated for harsh environments) .

• Hot-swappable: Supports maintenance without shutdown .

✅ Integration & Communication

• Modbus, Profibus DP, HART protocols for SCADA/DCS integration .

• Compatible with Bently Nevada’s 3500 rack and System 1™ software .

Technical Specifications

Applications