OPTO-EDU A11.1323 User manual

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A11.1323
Biological Microscope
Instruction Manual
Please read this manual carefully before use microscope!

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How to Use
1. Open the package and take out the microscope, insert the desired eyepiece, put on
the rubber eyepiece cover and tighten the anti-theft screws (ensure the eyepiece free
rotation)
2. Take off the objective cover, switch on. Select appropriate light source (top light or
bottom light).
3. Put the objects in the centre of stag, then adjust the focusing knob. Observe the
right eyepiece to make the image clear (depending on the situation to select brightness).

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Adjust the left diopter again to make left and right images both clear.
4. Rotate objective cover，select appropriate objective multiple.
5. When needed, can be screwed into auxiliary objective at the bottom of the lens
cover.
6. If feel the torque too tight when using, rotate the focusing knob arduously; Or the
torque too light, observing head auto-drop down, please use wrench to adjust the torque of
inside focusing knob to be appropriate.
Maintenance and Care
1. Whether the instrument in use or storage, should avoid dust, humidity, cold, heat or
PH steam.
2. Chemicals shall not be placed near the instrument, even more in
the microscope cabinet (except desiccant).
3. When not in use, the whole instrument should be covered by
dust cover to keep it clean. If there is dust on the lens surface, don't wipe it by hand, only by
brush.
4. If there is dust on the lens surface, can use clean old linen or cotton cloth dipped
in a small amount of pure alcohol and ether mixture (1:1), or benzoline and xylene to wipe
gently. Don't touch the lens surface by finger.
5. Due to time, grease on gear, rack, sliding groove surface and sliding cylinder will
bond with dust into dirt or hardened, lead to rotating the coarse knob difficultly, can use
xylene to clean, then add a little acid-free animal grease or acid-free Vaseline, can't use
other grease.
6. When microscope and eyepiece are not in use, should be covered with cloth or
glass to prevent dust.