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MAINTENANCE
CLEANING
Cleaning the external cover, control panel and color LCD monitor screen
1 When the external cover, control panel and color LCD monitor screen become stained,
clean them with a dry cloth.
2 If the external cover is badly stained, prepare a tepid solution of neutral detergent for kitch-
enware. Moisten the cloth with the aforementioned solution and wring it thoroughly. Then
wipe the cover with the cloth.
Cleaning the parts which come into contact with the patient
Before and after using the instrument and when one patient alternates with another, clean the
parts with a clean gauze pad moistened with sterilizing alcohol.
Cleaning the objective lens
When the objective lens is soiled, clean it according to the following procedure. The dustproof
coated objective lens is used in this instrument. The wiping method is different from a conven-
tional coated lens.
To check the objective lens, set the to "ON" ( ) and turn the illumination
lamp ON.
Darken the room. Pull out the IR filter selector and set the visible light for the observation illu-
mination.
Press the four times to set the maximum light intensity.
Examine the objective lens diagonally from the front. The lens condition can be seen clearly.
Dust and dirt adhered to the surface
Blow them off using a blower.
Be careful to prevent the blower end from touching the objective lens.
When the stain is simple such as dust, tears or saliva:
1 Breathe toward the objective lens and wipe it with a lens cleaning paper carefully.
2 If your lens cleaning paper is dirty, replace it with a clean one and repeat step 1.
3 Repeat steps 1 and 2 until no stain is seen on the lens.
NOTE
To prevent the plastic parts of the instrument body from discoloring
and deteriorating, do not use volatile solvents for cleaning, including
benzine, thinner, ether, gasoline, etc.
ILLUMINATION LEVEL SWITCH (+)
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