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Keyboard frame is composed of character (upper/lower letter, Arabic number and punctuation)
and function key. Click the character or function key on keyboard frame, corresponding
operation will display on edit bar.
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After user information edit is completed, press
to confirm, the user information
can be saved permanently.
b. Output
When starting, user info and note will be printed out.
7. Trouble-shooting
7.1 Troubleshooting method
If the instrument does not work properly, please find out the symptom and action according the
table below:
Symptom Action
Pilot lamp is off
Check the power connector, and reconnect if there is disconnection
Data is not printed out
Check the printer paper. If the paper has been used up, set new printer paper
The "Printer" parameter may be set to OFF, reset the parameter
The printer does work,
but printed result
cannot be obtained
The printer paper may be set with the wrong side up. Set it with the correct side up.
If the paper gets stuck, the paper may not be set correctly. Set it again correctly.
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If the above actions are not working, please contact us for after-sales service.
7.2 Error messages and countermeasures
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If a message appears on the screen, find out the symptom and action according to the table
below:
OD Init Error
Check the Lens support, press the restart button and restart the instrument
Please remove lens
from Lens support
After removing the lens, press the restart button and restart the instrument
Dust detection. Please
clean lens
Check Lens support. Remove the dust and dirt from the protective glass. Press the
restart button to restart the instrument
Do you want to use
Contact Lens support
Replace with spetacle Lens support, press the restart button to restart the
instrument; or choose "NO" to quit measuring contact lens
Meas. Error
Check the Lens support. Remove the one which interrupts the measuring beam
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To guarantee the normal and safe operation of the equipment, a preventive check and
maintenance should be conducted for the ME equipment and its parts every 6-12 months