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5.6
Cleaning Measuring Windows
Fingerprints, oil from eyelashes, or dusts on the measuring windows affect the measurement
accuracy.
Be sure to check the windows before each refraction. When the windows are dirty, remove any
dust on the measuring window with a blower brush. For more persistant stains, lightly wipe with a
clean and soft cloth.
Be sure to wipe lightly so as not to scratch the glass of the measuring window.
If condensation forms inside the measuring win-
dows, remove the protective glasses and wipe
the inside.
The protective glasses of the operator and
patient sides are removed by unscrewing
the four screws with a precise screwdriver.
Remove the face shields before removing
the patient's side protective glasses.
5.7
Cleaning Exterior
When the cover or panel becomes dirty, clean it with a soft cloth.
For persistent grime, soak the cloth in a neutral detergent, wring well, and wipe. Finally dry with a
soft, dry cloth.
• Attach the protective glasses with the screws just after cleaning.
Failure to do so could allow dusts to be settled inside the RT-3100. It may affect the viewability or
cause malfunction.
• Never use an organic solvent such as paint thinner.
It may ruin the surface of the refractor.
MAINTENANCE: Cleaning Measuring Windows
Protective glass
Screws
5
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