Advanced Process Controller/Programmer Specification Sheet The 2704 is a highly accurate and stable process controller available in a single, dual or triple loop format. Features include setpoint programming and comprehensive selection of maths and logic functions. Its user interface incorporates a bright dot matrix display, providing extreme flexibility and ease of use. It is a highly configurable product offering many features previously found only in programmable logic controllers. This enables systems to be implemented integrating the process control and logic functions of a machine, therefore simplifying system complexity and reducing the total system costs. Configuration is achievable either via the front panel or using Eurotherm® iTools configuration software. • 3 Control loops • SP Programmer • Customisable user interface Timers Realtime Clock • Maths and logic functions • Open communications Digital Inputs Analogue Inputs Setpoint Selection Input Selection Digital Inputs Digital Operations Control Loop 1 Control Loop 2 Control Loop 3 Digital

• Cascade, ratio or override • Gain scheduling • Configurable control strategies • Program mimic display Eurotherm's advanced control algorithm gives stable straightline control. Automatic tuning simplifies 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. Trending enables the user to view, both current and historical information on the process variable and setpoint of each control loop. The 2704 incorporates...

• Combinational logic • Real time clock • Timer functions Operators include: Add, Subtract, Log, Exp, SQRT, AND, OR Max, Min, Select and many more ToolKit blocks allows the user to create custom solutions by internally wiring analogue and digital operations together in flexible ways. 32 analogue and 32 digital operations are available. Other functions are available including timers, totalisers and a real time clock. • Ethernet Modbus/TCP protocol • DeviceNet® communications The 2704 supports two slave communication ports. Its modular build provides the user with a selection of communication protocols...

• Direct interface to vacuum gauges • Auto Hi/Lo gauge selection • Pump timeout alarm • Leak detection routine At the heart of the vacuum controller is a specially designed function block capable of accepting up to three vacuum inputs. The 2704 is capable of being used solely to control the vacuum pump down sequence of a furnace, or as an integral furnace controller where both temperature and vacuum are controlled. • 3500 Strain gauge input • Transducer excitation • Pressure alarms • Screen blockage alarm • Simple user calibration with shunt Suitable for precision pressure control in the plastic...

Environmental performance_ Temperature limits Operation: 0 to +50°C Humidity limits Operation: 5% to 85% RH (non condensing) Panel sealing: IP65, Nema 4X Atmospheres: Not suitable for use in explosive or corrosive atmosphere Suitable for domestic, commercial and light industrial as well as heavy industrial. (Domestic/light (Class B) emissions. Industrial (Class A) environmental immunity emissions. With Ethernet module fitted product only suitable for Class A emissions. Electrical safety_ BS EN61010 Installation cat. II; Pollution degree 2 The rate impulse voltage for equipment on nominal 230V...

Basic Product 1. Basic Controller/Programmer includes 8 digital registers, 4 timers and 4 totalisers. 2. Toolkit 1 includes 16 analogue, 16 digital, pattern generator, digital programmer, analogue switch and 4 user values. 3. Toolkit 2 includes Toolkit 1 plus extra 8 analogue, 16 digital\operations and 8 user values. 4. Dual analogue input suitable for Carbon Probes. (Inputs not isolated from each other) 5. EI-Bisync includes only a subset of parameters. 6. The HR module has 1 high resolution DC output and 1 24Vdc power supply.

1. Loop 1 PV defaults to main PV input on microboard. Loop 2 and 3 PV inputs must be fitted in I/O slots 3 or 6 or be assigned to the analogue input. 2. Alarm configuration refers to loop alarms only. One selection is allowed per loop. Additional alarms are available for the user to configure. 3. Thermocouple and RTD inputs assume sensor min and max values with no decimal point. 4. Linear inputs are ranged 0-100%, no decimal point. 5. Temperature units will be °C unless ordered by USA where °F will be used. 6. Remote setpoints assume loop min & max ranges. 7. VP1, VP2, VP3 and VP4 are not available...

Line 85 to 264V ac Neutral Earth Rear terminal connections Digital Input Digital Input Analogue input 10V Analogue input screen Analogue Input Document Number HA026916 Issue 11 Watlow, Eurotherm, EurothermSuite, EFit, EPack, EPower, Eycon, Chessell, Mini8, nanodac, piccolo and versadac are trademarks and property of Watlow its subsidiaries and affiliated companies. All other trademarks are the property of their respective owners. ©Watlow Electric Manufacturing Company. All rights reserved. Contact your local sales representative Faraday Close, Worthing West Sussex, BN13 3PL United Kingdom Phone:...