The AC PSU unit is supplied as standard with a mains cable assembly, suitable for local use, to be requested at the time of ordering the unit. A connector kit is provided for the Output, Thermocouple and Interlock Trip Facility.  All AC Power Supplies are supplied with RS-232 input as standard. The RS232 feature allows the controller to be connected to the users computer system through Eurotherms free iTools software, which provides data logging capability.

A 24v interlock circuit is also included to enable the power supply to be integrated with interlocks into other systems, or safety interlocks to be attached directly to the unit; which will switch off the enable signal from the unit if the circuit is broken. This enables safety interlocks via make / break switches for things such as chamber lids closed, vacuum interlocks, cooling water flow, over temperature sensors, etc. All AC PSUs come with soft start to protect against transformer current in rush.

Most thermocouple types can be accommodated with automatic cold-junction compensation. The temperature controller will usually be configured for type ‘K’; other types are available as an option upon request. The unit is compliant with relevant EU directives. A brief overview of the features of the range available is given below.

PID tuning is a method by with the controller increases the accuracy and stability of the system through a trial and error process. This process means that PID controllers are the most stable and accurate system of control compared to On/Off and Proportional Temperature controllers.

In normal operation the temperature controller will display actual and target temperatures (whether or not set point ramp-rate or self-tune is invoked) or indicate if the temperature sensor has failed. In the full configuration mode, all parameters and values can be viewed and edited. Control can be PID, PI, PD, P only or ON/OFF, with values automatically set or manually entered. The output power level is programmable if the sensor fails.

For processes where the maximum temperature must not be exceeded, the ramp-rate facility allows the user to define the temperature rise in programmed units (per second, minute or hour). A self-tuning algorithm automatically sets the PID and the under and overshoot values.

All controllers are supplied with RS-232 input as standard, as well as extensive safety features to ensure low-risk operation. This package also includes software, making external control extremely powerful and simple to use. A 24V interlock is also provided to cut the enable signal should the circuit be broken, example, to maintain the overall system pressure within limits.

The unit is supplied as standard with a mains cable assembly, suitable for local use, requested at the time of ordering the unit. A connector kit is provided for the Output, thermocouple and Interlock trip facility. The unit must also be earthed via the rear panel stud provided; use 2.5mm2 cable or braid connected to your system ‘star-point’ earth.