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Batteries, which contain harmful substances, are marked with the symbol of a crossed-out waste bin, similar to the illustration shown left. Under the waste bin symbol is the chemical symbol for the harmful substance, e.g. „Cd“ for cadmium, „Pb“ stands for lead and „Hg“ for mercury. You can obtain further information about the Battery Regulations from the Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit (Federal Ministry of Environment, Nature Conservation and Reactor Safety). 7.2. General Maintenance Your digital multimeter is an example of superior design and craftsman-ship. The following suggestions will help you care for your meter so you can enjoy it for years. * Keep your meter dry. If it does get wet, wipe it dry immediately. Liquids might contain minerals that can corrode the electronic circuits. * Handle your meter gently and carefully. Dropping it can damage circuit boards and cases and cause the meter to work improperly. -54-