OPERATIONAxiovert 200 Axiovert 200 Carl ZeissB 40-080 e 03/01 3-153.1.2.2 Light ManagerThe Light Manager is automatically activated each time the Axiovert 200 is switched on.The Light Manager automatically sets the illumination intensity of the halogen illuminator last saved foreach individual objective position. Therefore, the correct brightness is immediately available in almost allcases.During the objective change, the lamp voltage is reduced automatically to avoid glare and to permit therequired brightness to be achieved sooner.FL key on / off for fluorescence shutterIf this key is pressed briefly, the optional fluorescence shutter (reflected light) can be opened or closed.Opening is confirmed by a beep. The Light Manager remembers the setting of the halogen illuminatorseparately for the opened and closed shutter and resets it automatically after a changeover, i.e. thecorrect lamp brightness is always available immediately after any change between reflected andtransmitted light. This function of the fluorescence shutter key is also beneficial for pure transmitted-lightoperation to change quickly and easily between two different settings of the lamp brightness,e.g. in the following cases:− change between the brightfield and darkfield contrasting technique,− change between differently absorbing filters in the beam path,− change between visual observation and documentation using a camera.Programming of switching statusThe individual settings of the Light Manager can be saved permanently so that they are always availableimmediately when the instrument is switched on.• To save the Light Manager parameters, briefly press the Set LM key on the instrument rear. Saving asswitching status is confirmed by a beep. LightManager Settings stored appears in the LCD display.