START-UPAxioscope 5/7/Vario Mounting optional components ZEISS03/2018 430035-7344-001 793.2.9 Changing the PlasDIC diaphragmHow to mount the slit diaphragm (426715-9000-000):• Turn the PhC diaphragm that needs to bereplaced into the free aperture of the modulatordisk.• Screw the modulator disk’s centering screws(586HFig. 3-49/5) with the aid of an Allen wrenchback until they stop.• Unscrew the adapter ring (587HFig. 3-49/2) of thePhC diaphragm with the included tool(588HFig. 3-49/1).• Remove the PhC diaphragm (589HFig. 3-49/4) andspring (590HFig. 3-49/3).• With the aid of the tool (591HFig. 3-49/1), insert theslitdiaphragm (592HFig. 3-49/7) with the cams intothe orientation grooves (593HFig. 3-49/6).• Screw in the adapter ring (594HFig. 3-49/8) includedwith the slit diaphragm with the aid of theappropriate tool (595HFig. 3-49/1).3.2.10 Changing the PhC-DIC-PlasDICdiaphragm on the0.9 BF DF PhC DIC achromatic-aplanatic condenserThe diaphragm is changed according to thedirections given in sections 5 9 6 H 3.2.8 and 3.2.9.ATTENTIONAfter inserting the DIC module, do nottighten the condenser’s centering screwagain.How to deactivate the pre-set diaphragm mechanism which automatically opens the diaphragm whenphase contrast occurs:• Remove the cover (597HFig. 3-50/1). Turn the screw (598HFig. 3-49/5) with the Allen wrench (AF 1.5) counter-clockwise to the stop. You can now close the aperture diaphragm for contrasting procedures in DIC.Fig. 3-49 Mounting the slit-diaphragmFig. 3-50 Changing thePhC-DIC-PlasDIC diaphragm
