7SLIT L A M P b y K E E L E Rwww.ke e l e r. c o . u k7 cleaning and diSinfection inStructionSBefore any cleaning of the instrument or the base unit,ensure the power lead is disconnected.Only manual non-immersion cleaning as described should be used forthis instrument. Do not autoclave or immerse in cleaning fluids. Alwaysdisconnect power supply from source before cleaning.a Wipe the external surface with a clean absorbent, non-shedding clothdampened with a water / detergent solution (2% detergent by volume)or water / isopropyl alcohol solution (70% IPA by volume). Avoid opticalsurfaces.b Ensure that excess solution does not enter the instrument.Use caution to ensure cloth is not saturated with solution.c Surfaces must be carefully hand-dried using a clean non-shedding cloth.d Safely dispose of used cleaning materials.8 tranSport, Storage and Working conditionSThe following ambient condition limits are recommended for the KeelerSlit Lamp, for transport and storage it is recommended that the Slit Lampis kept in its original manufacturers packaging.Working environment+10°C to +35°C30% to 75% relative humiditytranSport and Storage conditionSTransport: -40°C to +70°CStorage: -10°C to +55°CBefore use, the Slit Lamp should be allowed to adjust tothe ambient room temperature for several hours. Thisis especially important when the unit has been stored ortransported in a cold environment; this can cause severecondensation to develop on the optical elements.