Abstract: A device for ABS-integrated brake pad wear indication in a motor vehicle in which all line paths are constructed to avoid current loops and induction surfaces. All the wheel speed and pad wear signal lines respectively lead to the ABS or ABS/ASR control unit in a single strand or are combined at least via common fixings, grommets, intermediate connecting plugs and a single terminal connecting plug. Owing to coding of different warning signals for, e.g., ABS, ASR and brake pad wear, the signal connection between the ABS or ABS/ASR control unit and the instrument cluster in the dashboard is reduced to a single line.

Abstract: A process and an apparatus are disclosed for the monitoring and treatment of circulating water of open circulation systems, preferably in cooling tower circulation systems, in which at least one partial minor stream is continuously diverted from the main circulating water supply and directed through a compact module in which, in an automatic sequence, the pH value of the partial stream is measured and adjusted by the addition of any necessary acid, the conductivity of the partial stream is measured, preferably inductively, and an elutriation unit is activated to drain excessively conductive water, corrosion inhibitor is added to the partial stream in dependence upon the quantity of fresh water added to the circulating water, organic and/or inorganic biocides can be added and the partial stream is filtered and returned continuously to the main circulating water supply.

Abstract: The invention relates to a control unit which comprises one or more switches and is capable of integration into a trim component installed inside the passenger compartment of a motor vehicle. The control unit is designed in such a manner that, after fitting the trim which accommodates it, a baseplate can be fixed to the trim, the baseplate accommodating the bases of all the control elements intended for the control unit.