Instruction manual

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A er Good is displayed, depress the Operator’s Button
one time and the Tono-Pen will display [
8.8.8.8
], fol-
lowed by a single row of dashes, [- - - -], and then by
a double row of dashes [====] followed by a “beep”
tone, indicating the instrument is ready to measure IOP
(Depressing the activation button a second time will
interrupt this process and send the unit to calibration
mode).
4.2.1 Unsuccessful Calibration
If several consecutive attempts at checking the calibration
are unsuccessful:
Loosen or remove the Ocu-Film Tip Cover from the
Tono-Pen XL probe tip and repeat the calibration check.
If still unsuccessful:
Spray the probe tip with compressed gas (see Section 5 for
details of this proce-dure), and repeat the calibration check.
If still unsuccessful:
Replace the batteries (see Section 3 for the procedure)
and repeat the calibration check.
*Note: Do not take measurements with the instrument if two
consecutive “good” calibration checks cannot be obtained.
 e instrument will not take a measurement when the prior
calibration check was “bAd”.
*Note: If the Tono-Pen XL fails to yield a “Good” calibration,
call Medtronic Technical Service.
4.3 Performing IOP Measurements
A er the Tono-Pen XL has been prepared for operation, the
patient must be prepared and then IOP measurements can
be performed.
7.
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