2704
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Advanced Process Controller/ Programmer Specification Sheet ● Customisable user interface Maths and logic functions Open communications 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’s iTools configuration software.

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Control functions Setpoint programmer Cascade, ratio or override Gain scheduling Configurable control strategies Program mimic display Eurotherm’s advanced control algorithm gives stable straight-line 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. Ideal for applications such as atmosphere or vacuum furnaces, and environmental chambers. The 2704 user...

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Mathematical calculations Slave communications ● Modbus™ RTU protocol Combinational logic Ethernet Modbus/TCP protocol Real time clock Timer functions DeviceNet® communications The 2704 supports two slave communication ports. Its modular build provides the user with a selection of communication protocols allowing easy integration into both PLC and PC supervisory systems. When using Profibus DP a GSD file has to be created, containing the information relating to the instruments parameters, that a Profibus master needs in order to communicate with its slave device. The GSD file for a 2704 is...

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Melt pressure Direct interface to vacuum gauges 350Ω Strain gauge input Auto Hi/Lo gauge selection Transducer excitation Pressure alarms Pump timeout alarm Screen blockage alarm Leak detection routine Simple user calibration with shunt 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. Carbon potential Suitable for precision pressure...

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SPECIFICATION General Environmental performance Temperature limits Operation: Storage: Humidity limits Operation: Storage: Panel sealing: Vibration: Altitude: Atmospheres: 0 to 50°C -10 to 70°C 5 to 85% RH non condensing 5 to 85% RH non condensing IP65, Nema 4X 2g peak, 10 to 150Hz <2000 metres Not suitable for use in explosive or corrosive atmosphere Electromagnetic compatibility (EMC) Emissions and immunity BS EN61326 Suitable for domestic, commercial and light industrial as well as heavy industrial. (Domestic/light (Class B) emissions. Industrial (Class A) environmental immunity...

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Ordering Code Standard Profibus Standard Profibus First digit 1-One loop 2-Two loops 3-Three loops Second digit - X X No programs -2Twenty programs -5Fifty programs -AAsynchronous (Note 7) Third digit - X X No programs --1 1 Profile --2 2 Profile --3 3 Profile Standard Zirconia 1 Gauge V ac. (Note 7) 3 Gauge V ac. (Note 7) Boiler (Note 7) None fitted Change over relay 2 Pin relay Dual relay Triac Dual triac DC Control DC retransmission PV Input (Slots 3 & 6 only) Triple logic input Triple contact input Triple logic output 24Vdc transmitter PSU Pot. input 5Vdc transducer PSU 10Vdc transducer...

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Configuration coding (optional) 1 Loop Function None Standard PID Cascade Ratio Override(7) PID control On/Off control PID/OnOff control VP without feedback VP with feedback 4-6 Process Inputs (Input Type) X None J J Thermocouple K K Thermocouple T T Thermocouple L L Thermocouple N N Thermocouple R R Thermocouple S S Thermocouple B B Thermocouple P Platinell II C C Thermocouple Z RTD/Pt100 A 4-20mA linear Y 0-20mA linear W 0-5Vdc linear G 1-5Vdc linear V 0-10Vdc linear Custom downloads (replace C) Q Custom curve D D thermocouple E E thermocouple 1 Ni/Ni18%Mo 2 Pt20%Rh/Pt40%Rh 3 W/W26%Re...

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Digital Input Line 85 to 264V ac Neutral Earth Digital Input Module 5 Rear terminal connections Analogue input screen Analogue Input Eurotherm: International sales and service Understanding and providing local support is a key part of Eurotherm business. Complementing worldwide Eurotherm offices are a whole range of partners and a comprehensive technical support team, to ensure you get a service you will want to go back to. AUSTRALIA Sydney Eurotherm Pty. Ltd. T (+61 2) 9838 0099 F (+61 2) 9838 9288 E info.au@eurotherm.com DENMARK Copenhagen Eurotherm Danmark AS T (+45 70) 234670 F (+45 70)...

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