The invention relates to a control device which is intended to control the temperature of first and second fluids formed by the lubricating oil of the heat engine of the vehicle and the recirculated exhaust gases respectively. The encoder may be configurable for implementation with a read channel. The interface is configured to transport both control signals and memory transactions. According to another embodiment, the substrate is a light sheet that cooperates with the light source to provide a distribution of light that varies between the first portion of the light sheet and the second portion of the sheet. The server system also includes an automated answering service for providing a series of questions from a stored set of questions for an individual at the remote apparatus to respond to, storing responses to each provided question in the series of questions and providing a service based on the individual’s response to the questions. Each of the first and the second separation units is capable of separating a gas from a liquid by diverting the gas around one wall of each of the separation units and by creating a circulation of the liquid around at least one of the parallel plates such that liquid is directed into the coagulation area.