User`s guide
10 230750-101, Rev. C.
TONO-PEN AVIA VET VERIFICATION
If suspect readings are observed, a Verication Procedure routine
should be performed. This will ensure that the sensor and elec-
tronics are performing correctly.
VERIFICATION PROCEDURE
Hold the TONO-PEN AVIA VET tonometer with the sensor •
end pointing down towards the oor.
Press and hold the activation button for 5 seconds - •
a beep will sound at one second intervals.
At the end of the 5 second button hold, the display will •
show “dn”.
Keep the pen vertical, with the sensor tip pointing down •
towards the oor, for a total of 15 seconds.
At the end of this period, a beep will sound and the display •
will show “UP”
Immediately point the sensor tip straight up and wait for •
the next beep (within 3 seconds).
A properly functioning TONO-PEN AVIA VET tonometer •
will display “Pass”. Pressing the activation button will now
put the device into Applanation Mode.
This complete test will need to be repeated if the display •
shows “Fail”. A single press of the Activation button will
re-start the Verication Procedure.
Note: the TONO-PEN AVIA VET tonometer will
remain in the Verication mode until it passes the
Verication Procedure.
The most common cause for failure is debris around the •
sensor tip. Follow the instructions for cleaning the tip in
the Maintenance & Storage section before re-performing
the Verication Procedure.
If this is unsuccessful, please contact the Reichert •
Technical Service Department.