INTRODUCTION Stereo microscopeZEISS Notes on instrument safety Stemi 3058 435063-7044-001 01/20151.2 Notes on instrument safetyIf it becomes apparent that the safety measures are no longer effective, the device must betaken out of service and secured against being used again unintentionally. Please contact aZEISS service agency or the Carl Zeiss Microscopy Service to have the instrument repaired.The Stemi 305 Information regarding instrument safety and installation conditions 435063-6044-008 and the Stemi 305 short operating instructions 435063-8044-000 as well as theoperating instructions regarding the light sources also must be observed.Do not operate the devices included in the scope of supplies in a potentially explosiveatmosphere, in the presence of volatile anaesthetics or flammable solvents such as alcohol,gasoline or similar substances.The devices may only be operated by instructed persons who have been informed about thepossible risks in conjunction with the use of microscopes and the fields of application inquestion. The microscope is a high-precision device that may be impaired in its performance oreven destroyed if handled improperly.Before commissioning the instrument, make sure that the existing power supply is suitable forthe instrument.Make sure that the mains plug is removed from the socket before the instrument is opened.The devices are not equipped with special equipment protecting them from corrosive,potentially infectious, toxic and radioactive or other samples that may be hazardous to health. Ifyou handle such samples, be sure to observe all legal requirements, in particular the relevantnational accident prevention regulations.The LED reflected-light illuminators and the LED transmitted-light illuminators have beenclassified as belonging to LED risk group 2 acc. to DIN EN 62471:2009. Avoid looking directlyinto the LED light.If the device is operated with an external cold light source (high-energy light), never lookdirectly into the fibre optic output of the cold light source. Otherwise, there is a risk of dazzlingand blindness.Never cover the open light guide socket or the fibre optic output. There is a fire hazard!In all cases avoid covering the open light guide socket or the fibre optic output with your handor other parts of your body. There is a risk of burns!