The 3500 is a fully programmable controller suitable for precision control of temperature, dew-point, carbon potential and oxygen in atmosphere heat treatment applications.

It is capable of being used solely to control the carbon potential, oxygen in a furnace or dew-point. Also functioning as an integrated furnace controller where any of these variables are controlled in conjunction with temperature. Additional features provide combined logic and math functions.

At the heart of the controller is a specially designed function block capable of accepting most zirconia probes. Standard features include an automatic probe cleaning routine, a shooting alarm and diagnostics indicating that the probe is about to fail and should be replaced.
For standard solutions controllers can be configured with features and user screens.

User customization can be achieved by reconfiguring the unit either via the front panel or the comprehensive PC based Eurotherm iTools.
 
A complete data sheet on the dual loop version of the 3500 is available HA029045.

The Eurotherm range of 3216i indicators provides accurate indication of temperature and process measurements. Process features including over temperature furnace limits, are implemented using relay output channels.

Click here to build your own instrument board by board!

A simple ‘Quick Start’ code is used to configure all the functions essential for indication and protecting your process.  This feature emphasis the ease of use of the 3216i.

Dimension of the instrument are listed below!

Eurotherm 2208e 1/8 DIN mounted, high stability temperature and process controllers with the following attributes:

•  Self-tuning with overshoot inhibition
•  Heating and cooling outputs
•  Customized operator display
•  The hardware is configurable for heating, cooling or alarms.
•  Digital communications
•  Fully configurable on-site
•  Modular heating and cooling outputs
•  Digital communications with industry standard protocols
•  Easy connection through digital comms
•  Two digital inputs to select auto/manual transfer
•  Modbus and DeviceNetTM communications
•  Advanced load current monitoring

Applications include, but not limited to:

• Food and brewing
• Plastics - Extrusion with optimized fan or water cooling algorithms
• Heat Treatment - Ovens and furnaces
• Cold stores
• Packaging machines

Features:

• Universal input
• Heating and cooling outputs
• Motorized valve output
• Up to three alarm relays
• Setpoint rate limit with timer function
• Heater current display
• Load diagnostics

Click here to build your own 2208e

1/8 DIN size and horizontal mount with accurate indication of temperature and process measurements. Process interlocks, including over temperature limits, are implemented using relay output channels.

A simple ‘Quick Start’ code is used to configure all the functions essential for indication and protecting your process making it easy to use.

This horizontal unit is ideal for control panels in furnaces, ovens and environmental chambers, plus a murid of other applications

Below are the mounting dimensions.

Predictive Load Management (PLM) is able to eliminate full cycle firing drawbacks.

Two key strategies are included in the PLM function: Load Balancing (or Load Sharing) and Load Shedding. Overall the load balancing strategy is the most important part of PLM to combine multiple SCR’s that are full cycle firing together with a stable overall power demand.

Load balancing is a strategy of equally distributing power of different loads to obtain an overall power consumption as stable and balanced as possible thus eliminating peaks of power. Each heating zone controlled by an SCR controller, is defined by an output power, cycle time and a maximum power (max capacity), which can be pictured as a rectangle. Rather than letting these rectangles pile up randomly, the PLM equipped controller uniformly distributes them thereby ensuring that at any given moment the overall power is as stable and balanced as possible. It is important to understand that the PLM function does not change the output power but rather balances and shifts the power evenly thereby eliminating any disturbance. The result is optimum load management through intelligent load balancing and load sharing, a strategy that will eliminate peaks and flicker and even the out overall power usage.

By using the PLM function, manufacturers are now able to use zero cross firing for their system without any drawbacks. Eliminating Phase Angle firing significantly improves the power factor which in turn results in substantial savings.

Additionally, using energy more efficiently (i.e. substantially decreasing the reactive power (KVAR) results in less power generated by the utility company. In fact, we should consider that consuming reactive power is in the end simply a waste of energy. While a bad power factor forces the utility company to generate this extra reactive power, it will be of absolutely no use to the end user. Besides saving costs, implementing a best practice of efficient energy consumption also results in considerably less CO2 emissions released in the atmosphere.

This is an excerpt from an article by René Meuleman

Eurotherm BV, Genielaan 4, 2404 CH Alphen ad Rijn, Netherlands

We still have some Continental Solid State Relays in stock, but they have been obsoleted.  They will be gone soon, so call before they are all gone. 800-849-5655

Below is an example of some of our Continental I/O Modules and solid state relays

Don’t delay, order today before they are all gone!.

Quick and easy commissioning - no need for expert knowledge
Recipe selection from operator interface
Internal timer and setpoint programming
Custom alarm messages for easy understanding
Quick Start set-up enabling 'out of the box' operation
Expert configuration via PC wizard with online help
Clear information of process with scrolling, custom messages
Instant indication of heater faults with integral ammeter
Remote setpoint - solution for multi-zone applications

The Eurotherm 3208 emphasis is on simplicity and ease of use.
 
A simple 'QuickStart' code can be used to configure all the functions essential for controlling your process.  This includes input sensor type, measurement range, control options and alarms - making 'Out of the Box' operation truly achievable.  If you prefer, you can specify what you need at point of order and we will ship the unit preconfigured to your requirements.

Applications:
Plastics - extrusion
Hot runner
Heat treatment
Ovens & chillers
Thermal forming
Stress relieving

Check out these features:
8 Segment programmer
Current monitoring
Heater failure detection
Internal timer
Scrolling text messages
Recipes
Modbus SP retransmission
Modbus comms
Remote setpoint
Analog retransmission
Help text