November 2010System Integration & Control Systems Design
Eurotherm’s nanodac recorder/controller offers graphical recording combined with PID control. The compact ¼ DIN panel mount unit offers four high accuracy universal inputs for data recording and control. This secure data recording device with accurate control is enhanced by a full colour, ¼ VGA display to bring a clear operator interface to the smallest machines.
The 90 mm TFT display offers clear visualisation of process parameters with a wide selection of configurable views to best suit the application. Views include: horizontal and vertical trends; horizontal and vertical bar graphs; numeric; alarm status and control loops. The unit also provides user wiring from the front of the product for detailed configuration without the need to connect to a PC.
The nanodac recording functionality utilises the secure strategies and UHH format developed by Eurotherm . As well as multiple real-time views and historical review on the product, multiple data archiving strategies are provided utilising the 50 MB onboard flash memory, removable USB and data transfer via FTP to a specified server.
The four universal input channels provide high accuracy (suitable for use in Nadcap applications) and 125 ms parallel sampling. An additional 14 virtual channels can be utilised to provide maths, counter, slave communications and totaliser functionality within the instrument. The instrument can also provide two independent control loops (optional). This control functionality utilises the advanced Eurotherm PID algorithm providing high performance and reliability to the process. Functionality includes the autotune facilities available along with overshoot inhibition (cutbacks), compensation for power fluctuations using power feedforward, linear, fan, oil and water cooling.
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