User`s guide
20 230750-101, Rev. C.
Maintenance and Storage
Cleaning Instructions
The TONO-PEN AVIA VET tonometer may have difculty taking
measurements or display “Fail” after a calibration when its tip is dirty and
requires cleaning. When the tip of the tonometer has dirt and contaminants
in the airspace between the sensor and the housing, cleaning of the tip is
necessary. When the airspace contains contaminants, the sensor cannot
move freely and the tonometer may have erratic readings and then show a
“Fail” calibration.
To clean the tonometer, perform the following steps:
Remove 1. OCU-FILM
tip cover from the
tonometer, if one is
installed.
Using canned air, 2.
place the sensor
end of the tonometer
against the outlet of
the canned air as
shown in Figure 8.
Blow the canned 3.
air into the tip of
the tonometer for
approximately 3
seconds.
Note: It is necessary to blow canned air directly into the tip, so that the
contaminants are pushed out of the airspace between the sensor and the
housing.
After cleaning the tip of the tonometer with compressed air, the tip will 4.
be cold. Allow the tip of the tonometer to warm to room temperature.
Perform the tonometer calibration as indicated in the 5.
TONO-PEN
AVIA VET Verication section of this manual.
Note: If the tonometer does not “Pass” the Verication Procedure, then repeat
the above cleaning instructions. Do not clean more than 3 times in a row. If the
tonometer still will not calibrate, contact Reichert.
Note: Always store the TONO-PEN AVIA VET tonometer with an OCU-FILM tip
cover installed to protect the tonometer tip from dirt and contaminants.
Note: Never use the TONO-PEN AVIA VET tonometer without an OCU-FILM tip
cover installed.
Figure 8
Cleaning Procedure