Q.seriesGantner Instruments Test & Measurement GmbH 91 Safety Information1.7 Servicing and cleaningThe modules or devices do not need any servicing. Cleaning mayonly take place in the voltage-free state. Therefore follow thepoints below:• Before cleaning, disconnect all connectors.• Clean the housing with a soft, slightly moistened cloth. Neveruse any solvents, because these may attack the labels.• When cleaning, make sure that no liquid enters into thedevice or goes onto the terminals.Never attempt to repair nor to again operate devices which aredefective, have developed a fault or are damaged. In this case itis essential to contact your customer consultant or GantnerInstruments Test & Measurement GmbH.1.8 DisposalOld devices which are no longer usable must be disposed ofaccording to national and local regulations regarding environ-mental protection and raw-material recycling. Electronic compo-nents must not be disposed of with the household refuse. Thepackaging can be recycled and should therefore be passed intothe recycling system. However, we recommend that the packag-ing is kept until the end of the warranty period so that you canpack faulty devices or modules properly.1.9 General hazards due to non-observance of thesafety informationThe modules or devices conform to the state of the art and areoperationally safe. However residual risks may arise when theyare used and operated improperly by untrained personnel.Any person commissioned with the task of siting, operating, ser-vicing or repairing a module or device in the Q.series must haveread and understood the operating manual and in particular theinformation relating to safety.