The Eurotherm 2604 Triple loop controller with a ratio control function block is used for simple configuring of applications requiring ratio control, such as required in chemical dosing, water treatment, chlorination, mixing vessels, waste incinerators and gas furnace control.
It is a multi-function controller/programmer available in a single, dual or three-loop format. The 2604 is a high-accuracy, high-stability instrument designed for demanding, high-accuracy multi-loop control applications, such as furnace and kiln control, environmental chambers, and a wide range of critical batch production processes in the chemical, brewing, pharmaceutical and plastics industries.
Function blocks are also provided for cascade and override applications.
The 2604 features a dual 5 digit LED for high accuracy measurement, with a dual line 20 character LCD panel for display of alarm messages, programmer and loop status information. User defined messages in the LCD panel simplify operation.
The ¼ DIN panel mounting 2604 has a simple modular construction allowing for the addition of 5 plug-in I/O modules to be added to increase the standard I/O of two temperature and process inputs, 8 selectable I/O, and one relay out. In addition a 40 digital I/O expander is available for logic alarming and control functions.
The plug-in I/O blocks can be retro fitted at any time, allowing the function of the 2604 to increase with your application requirements.
Two serial communication ports are available. Plug-in cards allow for Modbus (RS-232, RS-422 and RS-485), DeviceNet and Profibus network connections.
As a slave device this allows the 2604 to be monitored by SCADA and PLC systems. While as a master the 2604 can monitor and control other control devices on a Modbus network. The 2604 can be both a master and slave simultaneously.
The instrument incorporates a self-correcting input circuit.
