N125-DE
6
Fig.5
Fig.6
Fig.7
2.2.3 Installing the objective（Fig.5-6）
1. Adjusting the coarse focus knob until the support
device of the mechanical stage reaches its low limit
position.
2. Screw the lowest magnification objective into the
nosepiece from the left or the right side, then
revolve the nosepiece clockwise and mount other
objectives by the sequence of low to high
magnification
◇ Installing objective this way will make the change of
magnification to be easier during using.
★ Clean the objective regularly, for lens is
susceptible to dust.
★ When operating, use 10 × magnification
objective to search and focus specimen
firstly, then replace with higher
magnification objective if necessary.
★ When replacing the objective, slowly turn
the nosepiece until you hear “clicked”,
that means the objective is in place.
2.2.4 Mounting the filters（Fig.7）
1. Open the condenser carriage①；
2. Place the required filter②into the condenser ，
then close the condenser carriage。
★ the filter of the standard outfit is green and
baby blue.
①
②
