CARE, FUSE REPLACEMENT AND SERVICEAxioscope 5/7/Vario Instrument care ZEISS03/2018 430035-7344-001 1255 CARE, FUSE REPLACEMENT AND SERVICE5.1 Instrument careMaintenance of the Axioscope is limited to the following activities:• Turn the instrument off after each use and cover it with the appropriate protection cover (dust andhumidity protection).• Do not use or keep the instrument in a humid environment (maximum humidity ≤ 75%).• Cover any open tubes with the dust protection caps.• Remove dust or dirt from the visible optical surfaces by using a soft brush, blower brush, cotton swab,optical paper or cotton cloth.• Remove water-soluble stains (coffee, soft drinks, etc.) with a dust free cotton cloth, which can beslightly moistened with water only or with a mild detergent diluted with water.• Remove oil or grease stains (immersion oil, fingerprints) with a cotton swab or a dust- and lint-freefree cotton cloth and the special optical cleanser L.This cleanser is made of 90% petroleum ether by volume and 10% isopropyl alcohol (IPA) by volume.The ingredients are also known by the following names:Petroleum ether: surgical spirit, benzineIsopropyl alcohol: 2-propyl alcohol,dimethylcarbinol,2-hydroxypropane.Clean the optical surfaces in a circular motion going from the middle towards the edge. Do not press toohard.ATTENTIONDo not use acetone to clean the lenses of the Pol condensers.Please comply with the following instructions if you are going to use the microscope in a hot and humidclimate:• Keep the instrument in a bright, dry and well-aired room; humidity ≤ 75%; especially delicate partslike objectives and eyepieces should be kept in special dry closets.Precision optical instruments may be damaged by mold if they are kept and used under the followingconditions:− If the relative humidity > 75% longer than three days at a temperature of between +15 °C and+35 °C.− If they are set up in dark rooms without sufficient ventilation.− If there are dust and finger prints on optical surfaces.