The Bently Nevada 1900/65A (167699-02) is a versatile, cost-effective, and configurable equipment monitor designed for the continuous protection and monitoring of balance-of-plant assets. This monitor provides a robust solution for critical and auxiliary equipment, integrating seamlessly into existing control systems.

Features

• Four transducer inputs supporting 2- and 3-wire accelerometers, velocity sensors, or proximity sensors.
• Four temperature inputs supporting Type E, J, K, and T thermocouples, and 2- or 3-wire RTDs.
• Six configurable relay outputs for alarm and status management.
• Four 4-20 mA recorder outputs for external data logging.
• Dedicated buffered outputs for each transducer input for portable diagnostic analysis.
• Supports acceleration enveloping algorithms for enhanced vibration analysis.
• Optional remote display/keypad capability for stand-alone operation up to 75 meters away.
• Modbus communication support via Ethernet and serial (RS232/485) ports.

Applications

• Rotating Machinery Protection: Monitors pumps, motors, fans, blowers, and centrifuges.
• Process Industry Monitoring: Suitable for oil and gas, power generation, mining, and cement plant auxiliary equipment.
• OEM & Skid-Mounted Units: Ideal for integration into packaged or skid-mounted OEM machinery.
• Predictive Maintenance: Enables early detection of wear, misalignment, and imbalance.

Technical Specifications

Installation Guidelines

• Electrostatic Discharge (ESD): Always use a grounded wrist strap when handling the module to prevent damage to internal circuitry.
• Power Down: Ensure the system power is disconnected before installing or removing the module from the rack.
• Wiring: Use shielded cables for transducer inputs to minimize EMI interference. Ensure proper grounding of cable shields at the monitor end.
• Environment: Install in a clean, dry environment within the specified temperature range. Ensure adequate ventilation around the module for cooling.
• Configuration: Use the Bently Nevada 1900 Configuration software to set up transducer types, alarm setpoints, and relay logic prior to full operation.

FAQ

What is the 1900/65A?

The Bently Nevada 1900/65A General Purpose Equipment Monitor is a configurable, cost-effective, stand-alone system for continuous monitoring and protection of balance-of-plant assets, featuring eight input channels, six relays, and Modbus communication.

What equipment can the 1900/65A monitor?

It is designed for balance-of-plant equipment, such as cooling tower fans, pumps, blowers, motors, centrifuges, and small hydro turbines.

Does the 1900/65A support Modbus?

Yes, it supports Modbus communications via Ethernet and an RS232/485 serial port to interface with DCS, PLC, or SCADA systems.