Optika B-350 - Using the Microscope for Observation; Adjusting the Observation Head; Placing the Specimen on the Stage; Setting Up the Illumination System

Page 9
Oncepositionedandinstalledwiththenecessarycomponents,themicroscopeisreadytobeused.
Yourmicroscopeisalaboratoryinstrumentdesigned to last. Handle it alwayscarefullyandavoid
abrupt vibrations or shocks.
Alwaysdisconnectthepowercablefromthemicroscopewhennotinuseforlongtime,whileyou
cleanitorwhenyouperformanymaintenance.
AVOID DISASSEMBLING THE INSTRUMENT
Donotdisassembletheinstrument.Thisentailsthecancellationofthewarrantyandmaycausemal-
function.
4.1 Observation head
 Loosenthelock-screw(1),turntheobservationheadtoacomfortablepositionforobservation,and
thenlockthelock-screw.
4.2 Place the specimen on the stage
Lock the specimen slide on the mechanical stage using the slide clamp. Ensure that the spe¬cimen is
centred over the stage opening by adjusting the coaxial knobs of the stage.
4.3 Illumination system settings
 ThemicroscopeisttedwithawhiteLEDilluminator.Beforeturningontheilluminationsystem,read
thesection5.3aboutelectricalsafetyprecautions.Inserttheplugofthecableintothepowersocket
andturnontheswitchonthebackofthemainbody.Turnthebrightnessadjustmentknobtoabright-
ness suitable for observation.
4.4 Adjust interpupillary distance
 Holdtherightandleftpartsoftheobservationheadwithbothhandsandadjusttheinterpupil¬lary
distancebyturningthetwopartsuntilonecircleoflightcanbeseen.
 Thewhitedot(°)placedontherighteyepieceshowsthesetinterpupillarydistance.Justremember
this value to help on later settings.
4.5 Focus tension adjustment
The tension of the coarse focusing knob is preset by factory. To change the tension according to your
preference,justrotatetheknob(5)clockwiseinordertoincreaseit.
Excessive tension could damage the mechanism of focus. A too loosed tension causes the descent
of the stage by gravity or a sudden loss of focus. In this case, rotate the knob (5) to increase the ten-
sion.
4.0 USING THE MICROSCOPE