Carl Zeiss Axiolab A2-8 B 40-015 e 06/992.8 Set the Luminous-Field Diaphragm• The pushrod (2-6/1) for the luminous-fielddiaphragm has two positions:− pushed in: the full field of view is visiblewithout restriction.− pulled out: the visible field of view is reducedto approx. 1/3 of the overall diameter. Thiscan be useful as an aid to find the objectplane, i.e. the visible diaphragm is focused.Furthermore, this restriction of the field ofview enables reduction of the false lightportion of weakly reflecting reflected-lightspecimens.2.9 Connecting the Instrument to theLineThe microscope can be operated using linevoltages of 100 − 240 V without conversion• Connect the line cable (2-7/1) with connectorto the instrument socket (2-7/3) and connectthe earth-contact plug to the line.• Switch on the instrument via the on/off switch(2-7/2) on the left-hand side of the instrument.• The green LED integrated into the on/offswitch lights up to indicate that the machine isready for operation (switch in „I“ position).The integrated halogen lamp 6 V, 30 W mustalso be on. The change of fuses is described insection 4.2.Fig. 2-6 Setting the luminous-fielddiaphragmFig. 2-7 Connecting the instrument to theline