
Chapter 3
Maintenance and Storage
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Cleaning
Clean and decontaminate the microscope and lenses in accordance with the following procedure.
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Tools used for cleaning
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Blower
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Soft brush
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Soft cotton cloth, lens tissue, gauze, etc.
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Absolute alcohol (ethyl or methyl alcohol), medical alcohol
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Petroleum benzene (use only for cleaning immersion oil)
CAUTION
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Petroleum benzine and absolute alcohol used for cleaning are highly flammable. Be careful when handling these
materials, particularly around open flames or when turning the power switch on or off.
•
Follow the instructions provided by the manufacturer when using petroleum benzine or absolute alcohol.
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When cleaning the product, do not use organic solvents (alcohol, ether, thinner, etc.) for coated, plastic, or printed areas. It
will result in discoloration or peeling of printed characters.
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Petroleum benzine should be used only to wipe off immersion oil from the objective, and never to clean the entrance lens
at the bottom of the eyepiece tube, prism surface of the eyepiece tube, or the filters.
2.1
Cleaning Lenses
Keep the lens free of dust and fingerprints. If there is contamination on the lenses or filters, image quality decreases.
If any of the lenses become dirty, clean them by following the procedure given below.
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Cleaning light dirt (dust)
(1)
Blow dust off using an air blower.
(2)
If this is insufficient, brush away dust with a soft brush or wipe away gently with a piece of gauze.
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Cleaning tough dirt (fingerprint or grease)
Moisten lightly a piece of soft, clean cotton cloth, lens tissue, or gauze with absolute alcohol (ethyl or methyl alcohol) and
wipe the dirt off.
Tips on wiping
Do not reuse cotton cloth, lens tissue, or gauze that have already been used.
2.2
Cleaning Parts Other than the Lens
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Cleaning light dirt (dust)
Wipe with a silicon cloth.
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Cleaning tough dirt (fingerprint or grease)
Dampen a piece of gauze a little with neutral detergent and wipe the dirt gently.
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