User`s guide

26 16012-101 Rev. C
Troubleshooting (Continued)
Frequently Asked Questions (Continued)
Q: The calibration guide hole is dirty, how should I clean it?
A: Using a Q-tip or similar soft tipped device dipped in alcohol gently swab the hole. Ensure that the flat calibration
surface at the bottom of the hole is clean. Be sure not to exert excess force onto the phantom while cleaning.
Q: Why does the unit display a reading when not in contact with the patient's eye?
A: If the tip of the probe is wet, the unit will measure the thickness of the drop of water on the tip. To avoid this, ensure
the tip is dry after cleaning or disinfecting.