OPERATIONCarl Zeiss Axiovert 200 Axiovert 2003-6 B 40-080 e 03/01On / Off switch (3-1/1)− position 0 = instrument switched off− position I = instrument switched on, switch lights upKey HAL on/off (3-1/10)− Brief pressing switches the halogen illuminator on or off alternately.− Long pressing (> 1 s) automatically sets the brightness to 3200K for color photography.Toggle switch for brightness control of the halogen illuminator (3-1/11)− Controls the brightness of the halogen illuminator in 2 steps.step 1 – slow brightness change: switch pressed half down until first pressure point:switch to the left – brightness reductionswitch to the right – brightness increasestep 2 – fast brightness change: switch pressed down until stop (second pressure point)switch to the left – brightness reductionswitch to the right – brightness increase− Variable voltage range between 0 and 12 V. When the limit values are reached, a warning beep isemitted.− At 10.5 V, the halogen lamp provides light with the color temperature of 3200 K for colorphotography. To make this setting easier for you, the fast increase of the lamp voltage stops at thispoint and a beep is emitted. To further increase the lamp voltage, keep the toggle switch pressed formore than 1 sec or release it briefly and then press it again.− If the toggle switch is pressed down for more than 3 sec while the halogen illuminator is switched off,the halogen illuminator will automatically switch on again.Focusing drive (3-1/8)− Coarse adjustment (big knob):Focusing knob for coarse adjustment on both sides of the instrument: 1 coarse rotation = 5 mmOverall lift: approx. 10 mm− Fine adjustment (small knob):Focusing knob for fine adjustment available on both sides of the instrument: 1 fine rotation = 0.1 mmClamping lever for vertical stop of the focusing drive (3-1/33)− Setting of vertical stop for stage focusing.− Turn clamping lever for stop upwards towards the stopping pin. Use the focusing drive to move thestage to the uppermost admissible position where collisions with the stage or the microscope slide areno longer possible. Then press the clamping lever downwards to clamp it in the stop position.