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Bently Nevada 1900/65A Universal Device Monitor

Technical Specifications:

  • Sensor Inputs:
    • 4 channels configurable for acceleration, velocity, or displacement sensors (2/3-wire).
    • Supports proximity probes for shaft vibration measurement.
  • Temperature Inputs:
    • 4 channels compatible with E, J, K, T-type thermocouples and 2/3-wire RTDs.
  • Outputs:
    • 6 relay outputs for alarm/trip functions.
    • 4 4-20 mA recorder outputs for analog signal transmission.
    • 1 dedicated buffered output per sensor channel.
  • Communication:
    • Modbus TCP/IP via Ethernet and RS232/485 serial ports.
    • Modbus Gateway option for integration with DCS, SCADA, or PLC systems.
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Detailed content

  • Configuration:
    • Software-based setup (1900 Configuration Software) via laptop/PC.
    • Non-volatile memory for storing configuration files.
  • Display:
    • Optional local display/keyboard (up to 75 m from the monitor) for channel viewing and minor adjustments.

Functional Features:

  • Multi-Parameter Monitoring: Simultaneously tracks vibration (acceleration, velocity, displacement) and temperature.
  • Alarm Flexibility: User-defined thresholds for OK, Alert, and Danger states, with relay activation based on single or combined channel conditions.
  • Data Recording: Logs historical trends for vibration and temperature parameters.
  • Modbus Integration: Direct data exchange with industrial control systems (DCS, SCADA, PLC).
  • Durable Design: Built for harsh environments (corrosion resistance, high temperature, humidity tolerance).

Applications:

  • Power Generation: Turbine, generator vibration, and temperature monitoring to prevent unplanned outages.
  • Petrochemical & Chemical: Continuous monitoring of compressors, pumps, and reactors in hazardous areas.
  • Manufacturing: Multi-parameter diagnostics for critical production line machinery (e.g., motors, gearboxes).
  • Water Treatment: Vibration protection for pumps and blowers to extend equipment lifespan.
  • Mining & Cement: Vibration monitoring of crushers and conveyors to reduce maintenance costs.

Advantages:

  • Cost-Effective: Low-cost solution for non-critical machinery monitoring.
  • Scalability: Supports multi-device monitoring via four sensor channels, reducing deployment redundancy.
  • Reliability: High-quality components and advanced circuitry ensure stable operation in extreme conditions.
  • Ease of Use: Intuitive software interface for configuration, alarm setup, and data export.
  • Industry Compliance: Meets standards for industrial automation and machinery protection.

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