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5
2.5 Replacing the fuse
1) Turn off the power switch and disconnect the power cord.
2) Find the fuse holder at the rear bottom of the microscope body.
3) Pry out the fuse holder gently with a flat head screwdriver.
4) Replace the old fuse with a new one, and then insert it back in. See
Fig. 2
.
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 of the
illuminator.
Caution:
A diffusion filter is attached beneath the condenser to get uniform light and protect
your eyes from strong LED light when a low power objective applies. 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 and Y stage moving knobs to position the specimen in the center of
viewing field.
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. Then use the fine focus
knob to obtain a sharp image. You may now switch to another magnification
objective.
3) 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
3.4
and
3.5
.
Fig.2
Fuse Holder
Fuses
