Instruction manual

SECTION 5

Maintenance

5.1 Maintenance Procedures

Maintenance that should be performed on the Tono-Pen XL

con

sists of activities such as protecting the probe tip, keep-

ing surfaces free of dust and dirt and storing in a dry and

cool place so as not to adversely aﬀ ect electronic parts, and

replacing the batteries.

1. Keep the probe tip protected with an Ocu-Film Tip

Cover when in use or in storage. Avoid any contact with

the probe tip when not protected by an Ocu-Film Tip

Cover.

CAUTION

Use or storage of the Tono-Pen XL unit without an Ocu-Film

Tip Cover can cause severe damage to the instrument and

void

the Warranty.

2.  e probe post must be cleaned only with optical qual-

ity

compressed gas before the ﬁ rst use each day, before

instrument storage, in the event of unanticipated readings

or if a “Good” calibration check cannot be obtained. To

clean the probe post:

a. Remove the Ocu-Film Tip Cover.

b. Spray the compressed gas onto the probe tip for approxi-

mately 2 seconds.

c. Wait 3 minutes to allow the instrument to thermally

stabilize.

d. Cover the Tono-Pen XL unit’s probe tip with a new

Ocu-Film Tip Cover.