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7.0 Maintenance and cleaning
Always place the dustcover over your MSU-600 microscope after use. Keep the eyepieces and objectives always
mounted on the microscope to avoid dust entering the instrument
7.1 Cleaning the optics
When the eyepiece lens or front lens of the 10x or S40x objective are dirty they can be cleaned by wiping a piece of
lens paper over the surface (circular movements). When this does not help put a drop of alcohol on the lens paper.
Never put isopropanol or alcohol directly on the lens!
It is not necessary – and not recommended – to clean the lens surfaces at the inner side of the objectives. Sometimes
dust can be removed with high pressured air. There will never be dust in the objectives if the objectives are not
removed from the revolving nosepiece
Caution
Cleaning cloths containing plastic fibers can damage the coating of the lenses!
7.2 Maintenance of the stand
Dust can be removed with a brush. In case the stand or table is really dirty the surface can be cleaned with a non-
aggressive cleaning product
All moving parts - like the height adjustment or the coaxial course and fine adjustment - contain ball bearings that are
not dust sensitive. With a drop of sewing-machine oil the bearing can be lubricated
7.3 Replacing the fuse
To change the fuse, following the procedure below:
•
Unplug the system from power and place the microscope with back toward you
•
Find the fuse cover that will appear as a round protrusion with a slot
•
Use a small flathead screwdriver or other flat object (coin, etc) to gently push the fuse cover in and turn the
cover counter clockwise. You need to turn the cover about 3/4 of a turn
•
The fuse cover will pop out with the fuse attached
•
Remove the fuse from the cover and examine the fuse. If the thin piece of metal going from one end of the fuse
to the
other has a gap, then the fuse is bad
•
If the fuse is bad, install a replacement fuse in the cover
•
Gently push the fuse cover with the new fuse back into the
body until it is flush with the unit. Turn the cover clockwise
about 3/4 to secure the cover back into the unit
•
Fuse specification: 250v 500mA
Note: Fuse may blow in order to prevent internal damage to the
microscope. And in most cases, replacing with a correctly rated fuse
will resolve the issue. However, should you encounter a blown fuse
frequently, please contact your distributor for further assistance
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