Instruction manual

5.2 Tono-Pen XL Body

Avoid any shock or excessive vibration which will dam-

age the unit.

Clean with a non-abrasive, dry cloth.

CAUTION

DO NOT IMMERSE TONO-PEN XL BODY IN FLUIDS.

THIS

WILL CAUSE DAMAGE TO THE ELECTRONICS AND VOID THE

WARRANTY.

5.3 Battery Replacement

 e batteries need replacing when multiple beeps sound

and “Lob” appears on the LCD upon depressing the acti-

vation switch. Occasionally, a noticeable slowing in the

calibration check process or in activating the instrument

for taking measurements may suggest that the batteries

need replacing.

Always replace both batteries. Do not mix used and new

batteries in the instrument. Medtronic Ocu-Cel XL

batteries are recommended.

*Note:  e instrument will not function properly when mercury

batteries are used.

3. Replace the batteries using the procedure described in

Section 3.2, Set Up.

4. If the instrument is not to be operated for an extended

period of time, remove both batteries.  is will avoid pos-

sible damage to the instrument due to battery leakage.