Instruction manual

30
SECTION 6
Troubleshooting
6.1 Overview
 is section provides a guide for troubleshooting some basic
Tono-Pen XL operational problems. If a problem persists
a er using this guide contact your nearest Medtronic Rep-
resentative.
Table 6-1: Tono-Pen XL Troubleshooting Guide
Symptom
Probable Cause
Correction
“Lob” Batteries are
displayed
Low Batteries
Replace batteries
Noticeable slowing in
the calibration check
process, or in activat-
ing instrument
Batteries are low
Replace batteries
Compressed air
cleaning has lowered
the temperature of
the instrument
Allow Tono-Pen XL
unit to warm to room
temperature
Multiple inaccurate
readings
Improper technique
Review Section 4 or
watch Instructional
Video
Old or improperly
applied Ocu-Film Tip
Cover
Replace Ocu-Film
Tip Cover
Debris around probe
post
Clean with com-
pressed gas (see Sec-
tion 5 for procedure)