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3.
Operation
3.1 Adjusting illumination
1) Plug the power cord into the power socket on the microscope and connect it to the
power outlet.
2) Turn on the power switch.
3) Rotate the brightness intensity dial to increase or decrease the brightness.
Caution:
A diffusion filter is attached beneath the condenser to get uniform light and protect
your eyes from strong light when a low power objective applied. The diffusion filter
can be swung out to make the view field brighter when observing with a high power
objective, such as 100X objective.
3.2 Placing specimen
1) Place the slide on the mechanical stage.
2) Use the slide holder to gently secure the slide.
3) Turn the X-Y stage moving knobs to position the specimen in the center of viewing
head.
Caution:
Be sure not to allow an objective to touch a specimen slide when changing objectives.
3.3 Focusing
1) With the 10X objective in position, raise the mechanical stage using the coarse focus
knob until the specimen is close to the objective.
2) Turn the coarse focus knob until the specimen is in focus.
3) Use the fine focus knob to obtain a sharp image.
4) To get a good focused image, you may need to combine the focus knob adjustment
and interpupillary distance adjustment, along with eyepiece diopter adjustment
stated in
3.6
and
3.7
.
5) You may now switch to another magnification objective.
Tips:
To prevent your specimen slide from making contact
with an objective, raise the stage to its highest position
without contacting the 100X objective, then tighten the
stage upper stopper
(
Fig. 7
)
. Give the stage a tiny
extra moving space to ensure the objective can be
focused every time.
3.4 Applying the immersion oil
1) Rotate the objective nosepiece to seat the observing
position between the 40X and 100X objectives as
shown in
Fig. 8 (a)
.
2) Place a drop of immersion oil on the slide cover as shown in
Fig. 8 (b)
.
3) Rotate the objective nosepiece to seat the 100X objective to the observing position
until you hear a “click” sound.
4) After observing the specimen, use the lens cleaning paper to clean the 100X
objective lens gently and the specimen in time.
Stage Upward Stopper
Fig. 7
