The 2604 controller is a highly accurate, high stability process controller available in a single,
dual or triple loop format. Features include setpoint programming and comprehensive
selection of maths and logic functions.
It has a dual 5-digit display of process value and setpoint with an LCD panel for display of
alarm messages, programmer and loop status information. User dened messages in the
LCD panel simplify operation. The 2604 controller is a highly congurable product oering
many features previously found only in programmable logic controllers. This allows systems
to be implemented integrating the process control and logic functions of a machine, therefore
simplifying system complexity and reducing the total system costs.
Conguration is achievable either via the front panel or using Eurotherm’s iTools
conguration software.
Product at a glance
Eurotherm 2604 Controller
Advanced Process
Controller/Programmer
Digital Inputs
Analogue
Inputs
Setpoint
Programmer
Input
Selection
Digital
Operations
Analogue
Operations
Setpoint
Selection
Timers Totalisers
Real Time
Clock
Alarms Retransmission Comms
Control
Loop 1
Control
Loop 2
Control
Loop 3
Digital Inputs
PSP1
PSP2
PSP3
Digital Outputs
Event Outputs
PSP3
PSP2
PSP1
• 3 Control loops
• SP Programmer
• Customisable
user interface
• Maths and
logic functions
• Open
communications
Eurotherm Flexible Solutions
eurotherm.co.uk/2604 | 2
2604 Controller Data Sheet
2604 Advanced Process Controller/Programmer
Specifications
Control functions
• 3 Control loops
• PID, VP or ON/OFF
• Cascade, ratio or override
• Gain scheduling
• Congurable
control strategies
Eurotherm’s advanced control algorithm gives
precise straight-line control. Automatic tuning
simplies the commissioning procedure by
performing a one shot tune to calculate the
optimum PID values. To further optimise control
especially in programmer applications, gain
scheduling can be used to transfer control
between up to six sets of PID values.
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iTools conguration software
IO Hardware
• 0.25uV PV input
resolution
• Fixed and modular IO
• 250Vac isolation
• Expandable IO
• Easily upgraded
The 2604 controller incorporates a self correcting
input circuit (INSTANT ACCURACY) to maximise
accuracy and performance during initial warm up
and changes in ambient temperature.
One universal and one high level analogue input,
along with 10 digital IO are included as standard.
Additionally, a further 5 IO module may be tted
providing very exible input/output combinations.
The series 2000IO expander unit can provide an
additional 20 digital inputs and 20 digital outputs.
Setpoint programmer
• 50 Programs
• 3 Proled setpoints/program
• 500 Segments
• 16 Event outputs
Ideal for applications such as atmosphere or
vacuum furnaces, and environmental chambers.
The 2604 controller user interface oers the user
an extremely easy method of editing, selecting
and running programs.
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Dual temperature/carbon programmer
iTools setpoint
program editor
• Oine or online
editing on PC
• Graphical representation
• Advanced editing
functions
• Storage and retrieval
of program les
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iTools setpoint program editor