1900/65A Bently Nevada Universal Equipment Monitor

1900/65A Bently Nevada Universal Equipment Monitor

Description 

The 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 generalpurpose machines and processes that can benefit from continuous monitoring and protection. Inputs 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. Outputs 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. Configuration The user defines monitor operation and the Modbus Gateway register map by using software running on a laptop or PC to create a configuration file and download the file to the monitor through the built-in Ethernet connection. The 1900/65A permanently stores configuration information in non-volatile memory, and can upload this information to the PC for changes. Display Module The 1900/65A supports an optional display/keypad to view channel information or make minor configuration changes. 

This allows the 1900/65A to operate as a stand-alone package. If desired, the user can mount the display up to 75 metres (250 feet) from the Monitor Module

Specifications 

Inputs Transducer Inputs Users can configure Channels 1 through 4 to accept input from acceleration, velocity or displacement transducers. 

Transducer Channel Types 

Channel Types define the functionality for processing that will be applied to an input signal and the kind of variables or measurement values that will be derived from this input.  Channel Types also define the kind of sensor that must be used. Transducer Channel Types include: l Acceleration or Reciprocating Acceleration l Velocity or Reciprocating Velocity l Radial Vibration (shaft vibration) l Thrust (shaft axial displacement) l Position l Speed 

Acceleration and Reciprocating Acceleration Channel Types 

The Acceleration Channel Type and Reciprocating Acceleration Channel Type support two- and three-wire acceleration sensors.  The Reciprocating Acceleration channel type has timed OK channel defeat disabled.