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Make sure that the model eye and measurement window are not dirty.
If the surface of the measurement window becomes dirty with patients’ nose grease or
fingerprints or dust, the measurement results may be affected.
If the measured values are out of the above ranges, see “4-3-1 Automatic
Measurement Mode (AUTO, AUTO2)” and check that your measurement procedure
was correct. Then, retry the measurement.
Also check for dirt as described in “7-5 Cleaning the Measurement Window” and “7-6
Cleaning Model Eye”. If dirty, perform cleaning. If the values still do not fall within the
above ranges, contact your local dealer.
