Product Category

2604 Advanced Process Controller / Programmer

2604 Advanced Process Controller / Programmer

The 2604 is a 1/4 DIN plug-in high stability temperature and process controller designed to be used in demanding applications. It has a dual five digit display and a two line LCD panel for alarm, status and user defined messages.


  • High stability, precision and functionality
  • One, two or three control loops
  • PID, valve, ratio, cascade and override control
  • Setpoint programming
  • High speed ModBus®, DeviceNet™ and Profibus® communications
  • Test chambers, autoclaves, kilns, furnaces, forehearths
  • Melt Pressure, Carbon Potential

It employs universal inputs (TC, RTD, DC) with INSTANT ACCURACY™. Direct connection of Zirconia probes is also supported for carbon potential control in atmospheric combustion applications (heat treatment industry). The advanced control algorithm and gain scheduling gives straight line control, even in difficult non-linear applications and automatic tuning simplifies commissioning.

A setpoint programming option allows storage of up to 50 programs (500 segments, 16 digital events, gauranteed dwell, holdback) and each can profile up to three setpoints.

Using internal Toolkit blocks, including timers and totalizers, customized user configurations and special machine control applications can be created. Configuration is by the front panel or via iTools.

The 2604 is available with high speed Modbus® RTU, DeviceNet™ and Profibus®-DP (in the ‘f’ version) digital communications. The 2604 is available with powerful preprogrammed applications such as melt pressure and carbon potential.


  • 3 Control loops
  • SP Programmer
  • Customisable user interface
  • Maths and logic functions
  • Open communications


Analogue IP/OP In


Analogue IP/OP Out


Combinational Logic

32 Operations

Control Algorithms

User wired, Cascade, Override, Single

Control loops


Digital Comms

DeviceNet, Modbus, Profibus

Digital IP/OP In


Digital IP/OP Out


Maths Equation

24 Calculations

PC Configuration

Graphical wiring

Special Features

User wiring, Carbon Potential, Humidity, Master comms, Melt Pressure


4 / 0 / 4

Panel size (DIN)


Input Type

mA, mV, RTD, TC, Volts

PV Accuracy


IP Rating


Display Type

2 x 5 Dig LED + 2 line text

Control Types

On/Off, PID, VP

Alarm Types

Dev, Event, Heater fail, Hi, Lo

Supply Voltage

24V dc/ac, 85-264V ac

SP Programmer

50 Programmes, 500 Segments max

Real Time Clock

Day and Time