Maintenance Tips - Tasco 5TN Owner's Manual

USING THE MICROSCOPE
1. Select one of the pre-prepared slides and place it under the clips on the slide support table.
The specimen should be in the center of the hole in the table. Adjust the observation angle
(F) and the reflector so the light is focused on the specimen (G). If there is not enough
natural light, the reflector can be turned over so that the specimen is lit by the spotlight.
Caution! Do not use under direct sunlight to avoid injury to eyes.
2. Select the objective lens according to the magnification required by turning the lens holder.
The microscope can then be focused by turning the focusing knob until the specimen can
be seen clearly. Caution! Take care not to let the objective lens come into contact with the
specimen when focusing the microscope. If more detail is required, the objective lens can
be changed to one giving more magnification by turning the objective lens holder and
focusing again.
3. What you see is the inverted image of a specimen. If you want to see more of a specimen's
left part, you should move the slide to the right.
4. Besides viewing the ready made specimens, specimens can be prepared from other
materials. For example, if a piece of newspaper printing is viewed, the individual dots
making up the print can be seen.
5. A piece of peeled potatoes can be rubbed over a glass slide. Place a drop of clear water on
the slide and place a cover glass over the drop of water. The particles of starch from the
potato can then be viewed through the microscope.
6. Some specimens such as onion skins need to be colored before they can be viewed. To
prepare a specimen of onion skin, drip two drops of methylene blue or methyl orange which
has been added with water in a cup. Use the scalpel to scrape a layer of skin from a peeled
onion and dip a small piece of it into a coloring agent. Leave the specimen for a few minutes
to absorb the color. Then take out the specimen and wash away unnecessary coloring agent
with clear water, using the dropper. Place the colored specimen on a blank slide, the skin
should be stretched out and not folded so that a single layer is being viewed. Place a cover
glass over the specimen and view the specimen as before.
7. If you want to keep a specimen for a long time, it can be prepared in the same way but using
gum (supplied) instead of water.
Accessories
• 1 vial methylene blue
• 1 vial methyl orange
• 1 vial gum
• 5 blank labels
• 5 cover glasses
• 3 blank slides
• 3 prepared slides

Maintenance Tips

• Remove slides from the microscope when not in use.
• Replace the lens cover when not in use.
• If the microscope is not going to be used for some time, remove the batteries.
It is recommended that the microscope set is not used by
children under 8 years of age without parental guidance
because some of the accessories included in the set are sharp.
• 2 spare bulbs
• 1 scalpel
• 1 pair tweezers
• 1 dissecting probe
• 1 spatula
• 1 dropper
• Instructions for use
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