Select options for pricing
  • Call for availability



  • Accelerometer or Velomiter sensor
  • Modbus communication option
  • 24-bit ADC conversion
  • Four vibration/position/speed inputs
  • Four temperature inputs
  • Configurable scale factors and full scale ranges
  • Internal OK checking with status
  • Independent Alert and Danger setpoints
  • 200-entry event list
  • Six relay output
  • Relay operation is programmable
  • Buffered outputs for each transducer channel
  • Four configurable 4-20 mA recorder outputs


Bently Nevada Cooling Tower Vibration Monitoring Package includes the 1900/65A, display, enclosure, power supply, sensors and cables. It provides additional value for applications that can utilize accelerometer or velomitors for machinery monitoring and protection.

The Bently Nevada 1900/65A General Purpose Equipment Monitor is designed to continuously monitor and protect equipment that is used in a variety of applications and industries. The monitor's low cost makes it an ideal solution for general-purpose machines and processes that can benefit from continuous monitoring and protection.

The 1900/65A provides four transducer inputs and four temperature inputs. Software can configure each transducer input to support 2- and 3-wire accelerometers, velocity sensors or proximity sensors. Each temperature input supports Type E, J, K, and T thermocouples, and 2- or 3-wire RTDs.

The CTPKG-A Kit includes:

  • 1900/65A with Manual
  • Two accelerometer sensors with manual

The CTPKG-V Kit includes:

  • 1900/65A
  • Velomitor CT with manual
  • Terminal Housing for Velomitor
  • Modbus
  • Conduit adapter

The 1900/65A provides six relay outputs, four 4-20 mA recorder outputs, and a dedicated buffered output. The user can use the 1900 Configuration software to configure the relay contacts to open or close according to the OK, Alert and Danger statuses of any channel or combination of channels, and to provide data from any variable from any channel on any recorder output. The dedicated buffer output can provide the signal for each transducer input.

A Modbus® Gateway option allows the monitor to provide static variables, statuses, event list, time and date information directly to any Modbus client, including Distributed Control Systems (DCSs), Supervisory Control and Data Acquisition (SCADA) systems, Programmable Logic Controllers (PLCs), or System 1® software. The monitor uses an internal counter and a Modbus client/master time reference to generate time and date information. Users can upgrade monitors without the Modbus Gateway by ordering the 1900/01 Communications Upgrade (see the Ordering Information section). The 1900/65A supports Modbus communications via Ethernet and a software-configurable RS232/485 serial port.


This product can be used in the following applications: