
1716
8Troubleshooting
If an error occurs, the probe base ashes red. The
display and sounds indicate the source of the error.
Look at the display, press the Measure button
once, make the necessary corrections, and repeat
the measurement.
va u
Icon Display text Sound Problem Solution
TOO FAR
TOO NEAR
INCORRECT
ALIGNMENT
REPEAT
The probe is too far away from the
eye.
The probe is too close to the eye.
The probe was not perpendicular
to the cornea or the probe hit an
eyelid or eyelashes.
There was a problem with the
movement of the probe.
Press the Measure button once to acknowledge the
error. Shorten the forehead and cheek supports.
Press the Measure button once to acknowledge the
error. Lengthen the forehead and cheek supports.
Press the Measure button once to acknowledge the
error. Position the tonometer so that the probe points
perpendicularly to the center of your eye. Keep your eye
properly open.
Press the Measure button once to acknowledge the
error. Repeat the measurement.
3 long
5 short
2 short
2 short