Ametek Reichert Tono-Pen AVIA Vet User manual

Tono-Pen AVIA Vet®
Veterinary Tonometer
User’s Guide

©2018 AMETEK, Inc.
Reichert, Reichert Technologies, Tono-Pen, Tono-Pen AVIA Vet, and Ocu-Film are regis-
tered trademarks of Reichert, Inc.
Tono-Pen AVIA Vet POWERCEL is a trademark of Reichert, Inc.
AMETEK is a registered trademark of AMETEK, Inc.
All other trademarks are property of their respective owners.
The information contained in this document was accurate at time of publication. Speci-
fications subject to change without notice. Reichert, Inc. reserves the right to make
changes in the product described in this manual without notice and without incorporating
those changes in any products already sold.
ISO 13485 Certified – Reichert products are designed and manufactured under quality
processes meeting ISO 13485 requirements.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, recording, or otherwise, without the
prior written permission of Reichert, Inc.
Caution: Federal law restricts this device to sale by or on the order of a
licensed physician. Rx only.

230750-101 Rev. G 3
Table of Contents
Warnings and Cautions ............................................... 4
Symbols........................................................................ 8
Introduction................................................................... 9
Indications for Use ................................................ 9
Contraindications .................................................. 9
Device Description .............................................. 10
Features.............................................................. 10
Parts Identication................................................11
Accessories..........................................................11
Available Accessories ..........................................11
Instructions for Use .................................................... 12
Tono-Pen AVIA Vet Tonometer Modes ................ 12
Tono-Pen AVIA Vet Tonometer Verication ......... 13
Tono-Pen AVIA Vet Tonometer Tones.................. 15
Battery Installation and Replacement ................. 16
Liquid Crystal Display - User Interface................ 17
Tono-Pen AVIA Vet Tonometer Preparation ........ 19
Verication Mode................................................. 20
Performing IOP Measurements........................... 21
Applanation ......................................................... 22
Interpreting the IOP Measurement...................... 23
Cleaning & Maintenance ............................................ 24
Cleaning Instructions........................................... 24
Battery................................................................. 26
Storage................................................................ 26
Disposal .............................................................. 26
Troubleshooting.......................................................... 27
Specications ............................................................. 28
Guidance & Manufacturer’s Declaration .................... 30
Warranty..................................................................... 35

4 230750-101 Rev. G
Warnings and Cautions
Reichert Technologies (Reichert) is not responsible for the safety and reli-
ability of this instrument when:
• Assembly, disassembly, repair or modication is made by unauthor-
ized dealers or persons.
• Instrument is not used in accordance with its User’s Guide.
WARNING: AN INSTRUCTION THAT DRAWS ATTENTION TO RISK
OF INJURY OR DEATH.
WARNING: UNITED STATES FEDERAL LAW AND EUROPEAN REGULA-
TIONS REQUIRE THAT THIS DEVICE BE PURCHASED ONLY BY A PHYSI-
CIAN OR A PERSON ACTING ON BEHALF OF A PHYSICIAN.
WARNING: DO NOT REPAIR OR SERVICE THIS INSTRUMENT WITHOUT
AUTHORIZATION FROM THE MANUFACTURER. ANY REPAIR OR SER-
VICE TO THIS INSTRUMENT MUST BE PERFORMED BY EXPERIENCED
PERSONNEL OR DEALERS WHO ARE TRAINED BY REICHERT OR SERI-
OUS INJURY TO THE OPERATOR OR PATIENT MAY OCCUR.
WARNING: THIS INSTRUMENT SHOULD BE USED IN STRICT ACCOR-
DANCE WITH THE INSTRUCTIONS OUTLINED IN THIS USER’S GUIDE.
THE SAFETY OF THE OPERATOR AND THE PERFORMANCE OF THE
INSTRUMENT CANNOT BE GUARANTEED IF USED IN A MANNER NOT
SPECIFIED BY REICHERT TECHNOLOGIES.
WARNING: MODIFICATIONS TO THIS INSTRUMENT ARE NOT ALLOWED.
ANY MODIFICATION TO THIS UNIT MUST BE AUTHORIZED BY REICHERT OR
SERIOUS INJURY TO THE OPERATOR OR PATIENT MAY OCCUR.
WARNING: IF THIS INSTRUMENT IS MODIFIED, APPROPRIATE INSPEC-
TION AND TESTING MUST BE CONDUCTED TO ENSURE CONTINUED
SAFE USE OF THIS INSTRUMENT.
WARNING: DO NOT USE THE TONO-PEN AVIA VET TONOMETER ON A PATIENT WITH-
OUTAN OCU-FILM + TIP COVER OR INACCURATE READINGS MAY BE OBTAINED.
WARNING: DO NOT USE AN OCU-FILM + TIP COVER ON MORE THAN ONE
PATIENT TO HELP PREVENT CROSS CONTAMINATION.
WARNING: IT IS IMPERATIVE THAT A FRESH OCU-FILM + TIP COVER BE USED
FOR EACH PATIENT FOR THE PROTECTION OF THE EYE AND THE TRANS-
DUCER ASSEMBLY. THE TRANSFER OF INFECTION IS THUS PREVENTED.
REPLACE OCU-FILM + TIP COVERS AFTER EXAMINATION OF EACH PATIENT.
WARNING: DO NOT USE EXCESSIVE PRESSURE DURING APPLANATION
OR EYE INJURY MAY OCCUR.

230750-101 Rev. G 5
Warnings and Cautions (continued)
WARNING: DO NOT USE THE TONO-PEN AVIA VET TONOMETER IF THE
TRANSDUCER ASSEMBLY IS CRACKED, CHIPPED OR SHOWS ANY IR-
REGULARITY OF THE SURFACE, TO PREVENT PATIENT INJURY, AND/OR
INACCURATE READINGS.
WARNING: THE CORNEAL SURFACE NEEDS ONLY TO BE MOMENTARILY
CONTACTED. INDENTATION OR ADDITIONAL PRESSURE AFTER THE AUDIO
“CHIRP” TONE IS HEARD IS NOT REQUIRED AND MAY LEAD TO DAMAGE TO
THE EYE. IF MEASUREMENT PROCESS CAUSES PATIENT DISCOMFORT,
DEVICE DOES NOT SHOW A MEASUREMENT, OR IF DEVICE REQUIRES MUL-
TIPLE ATTEMPTS TO OBTAIN A MEASUREMENT, STOP THE EXAMINATION
AND REFER TO THE TROUBLESHOOTING SECTION OF THIS MANUAL.
WARNING: OCU-FILM + TIP COVERS CONTAIN NATURAL LATEX WHICH
MAY CAUSE ALLERGIC REACTIONS. QUESTION PATIENTS ABOUT AL-
LERGIES TO LATEX BEFORE MEASURING THEM WITH THE TONO-PEN
AVIA VET TONOMETER.
WARNING: DO NOT CARRY THE TONO-PEN AVIA VET POWERCEL BATTERY IN
A POCKET, OR CLOSE TO YOUR PERSON, AS A BURN INJURY MAY RESULT.
WARNING: THE BATTERY SHOULD ONLY BE REPLACED WITH THE BAT-
TERY SPECIFIED IN THIS MANUAL. USE OF ANOTHER BATTERY MAY
CAUSE FIRE OR AN EXPLOSION.
WARNING: DO NOT PLACE A SHORTING DEVICE BETWEEN THE BAT-
TERY TERMINALS, OR ALLOW THE BATTERY TO BECOME WET. MISUSE
OR IMPROPER DISPOSAL OF THIS BATTERY MAY CAUSE IT TO BECOME
VERY HOT, IGNITE OR EXPLODE. DAMAGE TO THIS UNIT AND/OR SERI-
OUS PERSONAL INJURY MAY RESULT.
WARNING: DO NOT RECHARGE THE BATTERY. THE BATTERY IS NOT
DESIGNED TO BE CHARGED BY ANY ELECTRICAL SOURCE. CHARGING
COULD GENERATE GAS AND INTERNAL SHORT-CIRCUITING, LEADING
TO DISTORTION, LEAKAGE, OVERHEATING, EXPLOSION OR FIRE.
WARNING: NEVER ALLOW LIQUID LEAKING FROM THE BATTERY TO GET IN
YOUR EYES OR MOUTH AS THIS LIQUID COULD CAUSE SERIOUS PERSON-
AL INJURY. IF IT COMES IN CONTACT WITH YOUR EYES OR MOUTH, FLUSH
THEM IMMEDIATELY WITH PLENTY OF WATER AND CONSULT A PHYSICIAN.
WARNING: DO NOT EXPOSE THE BATTERY TO TEMPERATURES ABOVE
140ºF, DISASSEMBLE THE BATTERIES, OR DAMAGE TO THIS UNIT AND/
OR SERIOUS PERSONAL INJURY MAY RESULT.
-CONTINUED-

6 230750-101 Rev. G
Warnings and Cautions (continued)
WARNING: ALWAYS KEEP BATTERIES OUT OF THE REACH OF INFANTS
AND YOUNG CHILDREN TO PREVENT THEM FROM BEING SWALLOWED.
IF SWALLOWED, CONSULT A PHYSICIAN IMMEDIATELY.
WARNING: THE USE OF ACCESSORIES OR CABLES OTHER THAN
THOSE SPECIFIED, WITH THE EXCEPTION OF THOSE SOLD BY THE
MANUFACTURER AS REPLACEMENT PARTS FOR INTERNAL COMPO-
NENTS, MAY RESULT IN INCREASED EMISSIONS OR DECREASED IM-
MUNITY OF THE EQUIPMENT OR SYSTEM.
WARNING: USE OF THIS EQUIPMENT ADJACENT TO OR STACKED WITH
OTHER EQUIPMENT SHOULD BE AVOIDED BECAUSE IT COULD RESULT
IN IMPROPER OPERATION. IF SUCH USE IS NECESSARY, THIS EQUIP-
MENT AND THE OTHER EQUIPMENT SHOULD BE OBSERVED TO VERIFY
THAT THEY ARE OPERATING NORMALLY.
WARNING: PORTABLE RF COMMUNICATIONS EQUIPMENT (INCLUDING
PERIPHERALS SUCH AS ANTENNA CABLES AND EXTERNAL ANTENNAS)
SHOULD BE USED NO CLOSER THAN 30 CM (12 INCHES) TO ANY PART
OF THE TONO-PEN AVIA VET, INCLUDING CABLES SPECIFIED BY THE
MANUFACTURER. OTHERWISE, DEGRADATION OF THE PERFORMANCE
OF THIS EQUIPMENT COULD RESULT.
CAUTION: AN INSTRUCTION THAT DRAWS ATTENTION TO THE
RISK OF DAMAGE TO THE PRODUCT.
CAUTION: DO NOT USE THE TONO-PEN AVIA VET TONOMETER WITHOUT AN
OCU-FILM + TIP COVER TO PREVENT DAMAGE TO THE TRANSDUCER ASSEMBLY.
CAUTION: DO NOT TOUCH THE TRANSDUCER ASSEMBLY WITHOUT AN OCU-FILM +
TIP COVER APPLIED OR DAMAGE TO THE TRANSDUCER ASSEMBLY MAY RESULT.
CAUTION: DO NOT BUMP, JAR OR DROP THE DEVICE BECAUSE DAM-
AGE TO THE ELECTRONICS OR TRANSDUCER MAY OCCUR. IF THE DE-
VICE IS DROPPED, CAREFULLY INSPECT THE DEVICE TIP FOR DAMAGE.
CAUTION: DO NOT IMMERSE THE TONO-PEN AVIA VET TONOMETER IN
FLUIDS OR DAMAGE TO THE ELECTRONICS MAY OCCUR.
CAUTION:
USE OF AMMONIA BASED CLEANERS ON THE LIQUID CRYS-
TAL DISPLAY (LCD) MAY CAUSE DAMAGE TO THE DISPLAY. SEE MAINTE-
NANCE SECTION FOR DETAILED CLEANING INSTRUCTION.
CAUTION: DO NOT ATTEMPT TO STERILIZE THE TONO-PEN AVIA VET
TONOMETER OR DAMAGE TO THE ELECTRONICS MAY OCCUR.
CAUTION: DO NOT USE SOLVENTS OR STRONG CLEANING SOLUTIONS ON
ANY PART OF THIS INSTRUMENT AS DAMAGE TO THE UNIT MAY OCCUR.
SEE MAINTENANCE SECTION FOR DETAILED CLEANING INSTRUCTION.

230750-101 Rev. G 7
Warnings and Cautions (continued)
CAUTION: DO NOT AUTOCLAVE OR DISINFECT USING HIGH TEMPERA-
TURES EXCEEDING THE RECOMMENDED TEMPERATURES INDICATED
IN THE SPECIFICATIONS SECTION OF THIS MANUAL OR DAMAGE TO THE
UNIT MAY OCCUR.
CAUTION: DO NOT ATTEMPT TO MODIFY THE TONO-PEN AVIA VET
TONOMETER OR THE TONO-PEN AVIA VET POWERCEL BATTERY OR DAM-
AGE TO THE DEVICE MAY OCCUR.
CAUTION: DO NOT STORE THE TONO-PEN AVIA VET TONOMETER WITH-
OUT AN OCU-FILM + TIP COVER OR DEBRIS MAY ENTER THE TRANSDUC-
ER ASSEMBLY AND CAUSE MALFUNCTIONS.
CAUTION:
MEDICAL ELECTRICAL EQUIPMENT NEEDS SPECIAL PRECAU-
TIONS REGARDING EMC AND NEEDS TO BE INSTALLED AND PUT INTO
SERVICE ACCORDING TO THE EMC INFORMATION PROVIDED IN THIS
GUIDE. PORTABLE AND MOBILE RF COMMUNICATIONS EQUIPMENT CAN
AFFECT MEDICAL ELECTRICAL EQUIPMENT.
CAUTION: ELECTROMAGNETIC INTERFERENCE FROM OTHER DEVICES
MAY AFFECT THIS INSTRUMENT. IF INTERFERENCE IS PRESENT, TURN
OFF OTHER ELECTRONIC DEVICES, OR REMOVE THEM FROM THE IM-
MEDIATE AREA WHILE OPERATING THIS INSTRUMENT.
CAUTION: PORTABLE AND MOBILE RF COMMUNICATIONS EQUIPMENT
CAN EFFECT MEDICAL ELECTRICAL EQUIPMENT.
CAUTION: THIS INSTRUMENT IS NOT TO BE USED NEAR HIGH-FRE-
QUENCY EMITTING SURGICAL EQUIPMENT.
CAUTION: OCU-FILM + TIP COVERS SHOULD BE STORED BETWEEN 35°
AND 80° FAHRENHEIT (2°-27° CELSIUS).
CAUTION: EACH BOX OF HIGH QUALITY OCU-FILM + TIP COVERS HAS A
“USE BEFORE” DATE STAMPED ON THE BOX. WE SUGGEST USE OF OUR
OCU-FILM + BEFORE THIS DATE TO GUARD AGAINST THE POSSIBILITY OF
SHELF WEAR. THE LATEX MATERIAL USED IN THE OCU-FILM + TIP COVERS
CAN DEGRADE. A DEGRADED FILM MAY RESULT IN LEAKAGE OF WETTING
SOLUTION AND INSTRUMENT DAMAGE. EXAMINE EACH OCU-FILM + TIP
COVER FOR YELLOWING, CRACKS, OR A STICKY TEXTURE PRIOR TO USE.
CAUTION: IF LIQUID IS SPILLED ON THE DEVICE, REMOVE THE BAT-
TERY AND RETURN THE TONO-PEN AVIA VET TO REICHERT FOR SER-
VICE. LIQUID MAY DAMAGE THE ELECTRONICS.

8 230750-101 Rev. G
Symbols
Caution, See Instructions for use
REF Catalog Number
SN Serial Number
2018
Date of Manufacture
Manufacturer
Waste of Electrical and Electronic Equipment
Compliance to Medical Device Directive 93/42/EEC
Consult Instructions for Use
Authorized Representative in European Community
Fragile Contents in Shipping Container - handle with
care
Do not get Shipping Container wet
Type BF Applied Part
SYMBOLS FOR OCU-FILM + TIP COVERS ONLY
Do not reuse. Single Use
Use By
LOT Lot Number
Contains natural rubber latex

230750-101 Rev. G 9
Introduction
Congratulations on your purchase of the Tono-Pen AVIA Vet®veteri-
nary tonometer.
The Tono-Pen AVIA Vet tonometer is a prescription only device in-
tended for measuring intraocular pressure (IOP) during routine eye
examinations or when increased intraocular pressure is suspected
by properly trained eyecare professionals such as veterinarians,
and veterinary technicians.
Note: The Tono-Pen AVIA Vet is not approved for use on humans.
This User’s Guide is designed as a training and reference manual
for operation, maintenance, and troubleshooting. We recommend
that you read it carefully prior to use and follow the instructions in the
guide to ensure optimum performance of your new instrument. If used
properly, the Tono-Pen AVIA Vet tonometer will provide you with fast,
accurate and reliable measurements for many years. Properly trained
eyecare professionals such as veterinarians, and veterinary techni-
cians should operate this instrument.
Please retain this manual for future reference and to share with
other users. For additional copies of this manual or questions
related to the Tono-Pen AVIA Vet tonometer, contact your local
authorized Reichert®dealer or contact our Customer Service de-
partment directly at:
Tel: [phone]
Toll Free: 888-849-8955
Fax: [phone]
E-mail: [email protected]
Indications for Use
The indications for use include measuring intraocular pressure
(IOP) for suspected glaucoma, or when increased intraocular
pressure is suspected.
Contraindications
None.

10 230750-101 Rev. G
Introduction (continued)
Device Description
The Tono-Pen AVIA Vet tonometer is an ergonomic, hand-held to-
nometer that measures intraocular pressure. The body of the instru-
ment is designed to fit comfortably in the user’s hand, facilitating
fast and accurate measurements. The tip of the tonometer contains
a sensor that houses a transducer assembly which converts ap-
plied force into an electrical signal. The electronics housed in the
ergonomic Tono-Pen AVIA Vet tonometer body process and ana-
lyze the waveforms produced by each applanation of the corneal
surface of the eye. These are used to produce an averaged IOP
measurement. The measurement is displayed on the Liquid Crystal
Displays (LCDs).
A replaceable battery compartment houses the Tono-Pen AVIA Vet
POWERCEL®battery pack, consisting of two Lithium Manganese
Dioxide batteries.
Features
The Tono-Pen AVIA Vet tonometer has the following features:
• Easy to use - IOP can be measured reliably by veterinary profes-
sionals.
• Portable - The Tono-Pen AVIA Vet tonometer weighs just
71 g (2.4 oz) and is battery operated.
• Accurate - The measurements from the Tono-Pen AVIA Vet to-
nometer correlate strongly with Goldmann applanation tonometry
and direct measurements of IOP.
• Versatile - The Tono-Pen AVIA Vet tonometer may be used easily
with the patient in any position, making the instrument suitable
for the office and in remote locations.

230750-101 Rev. G 11
Introduction (continued)
Parts Identification
A. Tip – location of sensor.
B. Transducer Assembly - housing for sensor.
C. LCD - displays the IOP in mmHg, number of applanations
collected, statistical confidence indicator, and battery life status.
D. LED - green light on in Applanation Mode.
E. Power Supply - Tono-Pen AVIA Vet POWERCEL battery pack.
F. Activation Button - Applanation Mode select button.
A
B
F
C
D
E
Figure 1. Key Features
Accessories
230751 Tono-Pen AVIA Vet POWERCEL™Battery
230651 Ocu-Film®+ Tip Covers (150 per box)
68C1334 Carrying Case
230750-101 User’s Guide
230750-104 Quick reference Guide
Available Accessories
230651 Ocu-Film + Tip Covers (150 count per box)
230653 Ocu-Film + Tip Covers (600 count bulk bag)

12 230750-101 Rev. G
Instruction for Use
Tono-Pen AVIA Vet Tonometer Modes
Power Up Mode
Pressing the activation button initiates the battery life, LCD,
Transducer Assembly, and electronic self-test. A successful power-
up puts the device automatically into applanation mode.
Applanation Mode
The user will have 15 seconds after pressing the activation button to
obtain the first applanation. 2-6 applanations are needed to acquire
an IOP value. During applanation mode, the LCD will display the
IOP and number of applanations collected. After 6 applanations are
collected, the LCD will display the finaI OP along with a statistical
confidence indicator. After 25 seconds, the device will automatically
go into a sleep mode. If the activation button is pressed again
the data will be cleared and the unit will be ready to start another
measurement sequence.
Verification Mode
Pressing and holding the activation button for 5 seconds initiates
an electronic self test mode. See Tono-Pen AVIA Vet Tonometer
Verification section for details.
Sleep Mode
A power-saving mode automatically activates after 25 seconds of
non-use. Pressing the activation button will initiate a power-up
mode.

230750-101 Rev. G 13
Instruction for Use (continued)
Tono-Pen AVIA Vet Tonometer Verication
If suspect readings are observed, a verication test should be per-
formed. This will ensure that the Transducer Assembly and electronics
are performing correctly.
Verification
1. Hold the Tono-Pen AVIA Vet tonometer with the Transducer
Assembly end pointing down towards the floor.
2. Press and hold the activation button for 5 seconds - a beep will
sound at one second intervals.
3. At the end of the 5 second button hold, the display will show [dn].
4. Keep the pen vertical, with the Transducer Assembly pointing
down towards the floor, for a total of 15 seconds.
5. At the end of this period, a beep will sound and the display will
show [UP].
6. Immediately point the Transducer Assembly straight up and
wait for the next beep (within 3 seconds).
Figure 2. Tono-Pen AVIA Vet Verification Procedure
-continued-

14 230750-101 Rev. G
Instruction for Use (continued)
Verification (continued)
7. A properly functioning Tono-Pen AVIA Vet tonometer will
display [PASS]. Pressing the activation button will now put the
device into Applanation Mode.
Figure 3. Tono-Pen AVIA Vet Verification Pass
8. Verification test will need to be repeated if the display shows
[FAIL]. A single press of the Activation button will re-start the
verification test.
Note: The Tono-Pen AVIA Vet tonometer will remain in the
Verification mode until it passes verification test.
9. The most common cause for failure is debris in the tip of the
Transducer Assembly. Follow the instructions for cleaning the tip
in the “Maintenance & Storage” section before re-performing the
verification test.
10. If this is unsuccessful, please contact the Reichert Technical
Service Department.

230750-101 Rev. G 15
Instruction for Use (continued)
Tono-Pen AVIA Vet Tonometer Tones
The Tono-Pen AVIA Vet tonometer generates two different tones.
A “BEEP” will sound when:
• Power Up Mode fails
• Verification Mode fails
• Applanation Mode starts
• IOP testing is completed
• IOP values are out of range (>99)
• At various points during the verification test.
A “CHIRP” will sound when:
• A valid IOP measurement has been taken during applanation.

16 230750-101 Rev. G
Instruction for Use (continued)
Battery Installation and Replacement
The Tono-Pen AVIA Vet tonometer is supplied with a Tono-Pen AVIA
Vet POWERCEL Battery that needs to be installed prior to use. The
Tono-Pen AVIA Vet POWERCEL Battery is the only replacement
battery that can be used with this device.
1. Insert the Tono-Pen AVIA Vet POWERCEL Battery into the base
of Tono-Pen AVIA Vet tonometer until fully seated. The Battery is
“keyed” for correct installation.
2. Press the Activation Button.
3. Check that the battery symbol in the LCD has all segments
displayed.
4. Check that the Self-Test is initiated.
5. Dispose of used Batteries in accordance with local regulations.
Figure 4. Tono-Pen AVIA Vet POWERCEL
Battery Installation and Replacement

230750-101 Rev. G 17
Instruction for Use (continued)
Liquid Crystal Display - User Interface
POWER UP MODE - USER INTERFACE SEQUENCE OF EVENTS
User Interface
LCD/Battery
Test
LED Off
Passed Battery Life Test/Passed
LCD Test
(SEE APPLANATION MODE)
POWER UP MODE - USER INTERFACE ERROR CODES
User Interface
Error Code
LED Off
Battery Level Critical
(when low, symbol will flash)
User Interface
Error Code
LED Off
Failed Self Test
APPLANATION MODE - USER INTERFACE SEQUENCE OF EVENTS
User Interface
Ready to
Measure
LED On, 1 Beep
Ready to Begin IOP Testing
(15 seconds for testing before
Time Out)
User Interface
Testing
Display
LED On
During Test, screen shows number
of applanations achieved
(in this case 4 of 10)
Each applanation taken equals
1 Chirp
User Interface
Test Complete
LED Off, 1 Beep
Test Complete
Patient has an IOP of 16 with a
statistical confidence indicator of 95

18 230750-101 Rev. G
Instruction for Use (continued)
Liquid Crystal Display - User Interface (continued)
APPLANATION MODE - USER INTERFACE ERROR CODES
User Interface
Error Code
LED Off
Error - IOP value Under Range
(<5mm Hg)
User Interface
Error Code
LED Off
Error- IOP Value Over Range
(>55mm Hg)
User Interface
Error Code
LED Off
Timeout - not enough IOP
values collected
VERIFICATION MODE - SEQUENCE OF EVENTS
User Interface
Begin Verification
Mode
Hold Tono-Pen AVIA Vet
tonometer with transducer
down towards floor
(LED Off)
User Interface
Invert Pen
Invert Tono-Pen AVIA Vet
tonometer (LED Off)
User Interface
Successful
Verification
Successful Tono-Pen AVIA
Vet tonometer verification
(LED Off)
VERIFICATION MODE - USER INTERFACE ERROR CODE
User Interface
Error Code
Unsuccessful Tono-Pen
AVIA Vet tonometer
verification (LED Off)

230750-101 Rev. G 19
Instruction for Use (continued)
Tono-Pen AVIA Vet Tonometer Preparation
1. Allow the instrument to thermally stabilize to room temperature
for approximately 30 minutes prior to use.
2. Remove the storage Ocu-Film + tip cover from the Transducer
Assembly.
3. Visually inspect the Transducer Assembly for cracks, chips
or other irregularities. Do not use if these conditions
are present.
4. Slide an Ocu-Film + Tip Cover onto the Transducer Assembly
until the ridge is seated, taking care not to apply the tip cover
too tightly or too loosely. Make certain that the rubber is at
across the tip, but not taut.
Figure 5. Tono-Pen AVIA Vet Tonometer Preparation
Note: Use of the Ocu-Film + Tip Cover is required under original
Tono-Pen instrument warranty and service contract terms.
Note: Corneal topical anesthetic is required with tonometry.

20 230750-101 Rev. G
Instruction for Use (continued)
Verication Mode
A verification test may be initiated if suspect readings are observed.
(See Tono-Pen AVIA VET Tonometer Verification section for
details.)
If the verification test resulted with the LCD displaying [FAIL], repeat
the verification test, or reference the troubleshooting section for
potential causes for test failure.
Note: The Tono-Pen AVIA Vet tonometer will remain in the
Verification mode until it passes verification.