Huvitz HRK-9000A User manual

User Manual
Auto Ref/Keratometer HRK-9000A

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Important Notice
This product may malfunction due to the electromagnetic wave that is generated
from mobile phone, two-way radio, machinery controlled wireless and others. Do not
place any device that may affect this product nearby.
We believe that the contents of this user manual are accurate in overall since they were
reviewed carefully. However, Huvitz does not assume any kind of responsibility for the
latent mistake or omission that results from the use of information included in this user
manual.
Huvitz has the right to make any kind of modification to this product or product specs
anytime without prior notice and modification may not be renewed on this document.
9000ENG0023-A
Ver 1.0
© 2014 - 2015 Huvitz Co., Ltd.
(HQs) 298-29, Gongdan-ro, Gunpo-si, Gyeonggi-do, 435-862, Korea
Manufacturer: Huvitz Hogye Branch
16-17(Hogye-dong), 91-beongil, LS-ro, Dongan-gu, Anyang-si, Gyeonggi-do, 431-848,
Korea
Huvitz has the copyright to this document.
Parts or all of this user manual cannot be duplicated without Huvitz’s permission in
accordance to the copyright law.

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Table of Contents
1. Introduction..............................................................................................................5
1.1. Outline of the instrument ...................................................................................5
1.2. Classification.......................................................................................................6
2. Information regarding safety ...................................................................................7
2.1. Introduction ........................................................................................................7
2.2. Safety symbols ....................................................................................................8
2.3. Environment related matters ............................................................................11
2.4. Safety Precaution..............................................................................................13
3. Characteristics........................................................................................................17
4. Precautions during use ..........................................................................................18
5. Name and function of each part............................................................................20
5.1. Key part ............................................................................................................20
5.2. Main measurement screen button explanation .................................................23
6. Equipment installation and preparation for measurement ..................................25
7. Practical training via Model Eye ............................................................................28
8. Measurement..........................................................................................................33
8.1. Refractive power measurement mode (REF mode) ...........................................34
8.1.1. Manual measurement mode ....................................................................35
8.1.2. Automatic measurement mode ...............................................................41
8.2. Corneal curvature measurement mode (KER mode)..........................................44

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8.2.1. Manual measurement mode....................................................................44
8.2.2. Automatic measurement mode ...............................................................47
8.3. Continuous corneal curvature / refractive power measurement mode (K&R
mode) 48
8.3.1. Manual measurement mode....................................................................48
8.3.2. Automatic measurement mode ...............................................................51
8.3.3. All kinds of markings...............................................................................52
8.4. Peripheral Corneal measurement (KER-P mode) ...............................................53
8.5. Contact lens’ base curve measurement (CLBC mode) .......................................57
9. Other mode ............................................................................................................60
9.1. Visual Acuity Test mode ....................................................................................60
9.2. Accommodation Test mode (accommodation force)..........................................62
9.3. Other menu mode .............................................................................................64
9.3.1. COLOR VIEW mode..................................................................................64
9.3.2. SIZE mode (pupil diameter measurement)..............................................75
9.3.3. ZERNIKE mode ........................................................................................77
9.3.4. RETRO-ILLUMINATION mode....................................................................84
9.3.5 TFBUT measurement mode (Tear film break-up time) .............................90
9.3.6. Meibography mode..................................................................................92
9.3.6.1. Filming result selection screen............................................................93
9.3.6.2. Meibomian gland emphasis and analysis result screen.........................94
9.3.7. DISPLAY mode .........................................................................................97
9.4. User SETUP mode............................................................................................100
9.6. Input method ..................................................................................................108

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9.5. Power saving function .....................................................................................110
10. Self-diagnosis and maintenance/repair ...............................................................111
10.1 Prior to calling a serviceman ..........................................................................111
10.2. Replacing.......................................................................................................114
10.2.1. Printer page ........................................................................................114
10.2.2. Slip page .............................................................................................115
10.3. Equipment cleansing .....................................................................................116
10.4. When moving equipment installation place...................................................116
11. Information needed for servicing .........................................................................118
12. Key specs ...............................................................................................................120
13. Accessories.............................................................................................................123
14. EMC Information.....................................................................................................124

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1. Introduction
1.1. Outline of the instrument
Automatic eye examination refractive power measurement device, HRK-9000A is the
equipment that measures refractive power of the test subject’s eyeball to show
Sphere (SPH), Cylinder (CYL) and Axis (AXS) information. Moreover, it can measure test
subject’s corneal curvature and PD (Purpillary Distance, distance between pupils) and
pupil’s size. In particular, it is possible to measure Peripheral Corneal Curvature
separately when measuring corneal curvature, and it enables accurate prescription
since it is possible to know the information of the cornea’s center and periphery
curvature individually.
Moreover, optimal eye examination information is provided depending on the state of
test subject’s eyes with the following other functions that are provided additionally.
▪VA (Visual Acuity) test
▪Color image observation
▪Light observation with Retro-Illumination
▪Abnormal curve state output via Zernike graph
▪Tear film destruction time measurement
▪Meibomian gland filming function
Automatic eye examination refractive power measurement device, HRK-9000A carries
out automatic arrangement to the X-Y-Z axes (left and right/up and down/front and
back) direction according to pupil to the location optimized for filming including pupil’s
automatic tracking function. Moreover, automatic chin rest adjustment function is

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provided to facilitate adjustment of the chin rest’s height, up and down.
1.2. Classification
Classification Under the Provision if 93/42/EEC (MDD): Class Im
Protection Against Electrical Shock: Class I
Applied Parts: Type B applied parts. (Chinrest Paper, Forehead rest)
Protection against harmful ingress of water: Ordinary, IPX0
Pollution Degree : II
Degree of safety in the presence of a flammable anesthetics mixture with
air or with oxygen or with nitrous oxide: Not suitable for use in the presence
of a flammable anesthetics mixture with air or with oxygen or with nitrous
oxide.
Mode of Operation: Continuous
※This product is a medical device

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2. Information regarding safety
2.1. Introduction
Safety is everyone’s obligation and responsibility. Safe use of this device is
important for everyone involved - installers, users, operators and device managers. It
is a must to study and to master this user manual individually prior to installing,
using, cleaning, repairing or controlling this device and its accessories. It does not
suffice to emphasize the importance of understanding the instructions found in this
manual repeatedly in order to increase safety of patients or users. For this reason,
the following safety warning chart is included at the adequate place on this manual
in order to highlight information that requires special precaution or safety related
information in particular. All the users or managers need to pay special attention in
addition to mastering “WARNING” or “CAUTION” in the manual.
“Warning” cautions against the existence of calamity that can cause severe
personal injury, death or property loss in case of negligence.
NOTE
“Note” explains important information related to installation, operation and
management, and failure to comply may lead to calamity in case of
negligence.
“Caution” informs of the matters related to calamity that can cause minor
injury or property loss in case of negligence.
!
WARNING
!
CAUTION

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2.2. Safety symbols
The International Electro technical Commission (IEC) announced the symbols that
warn when connecting electric medical device’s power or that warn against calamity
that may occur. Classification and symbol are as follows.
European Conformity
UL60601-1
CAN/CSA C22.2
NO.601.1
MEDICAL EUIPMENT
WITH RESPECT TO ELECTRIC SHOCK
FIRE AND MECHANICAL HAZARDS ONLY
IN ACCORDANCE WITH UL 2601-1, AND
CAN/CSAC22.2 NO.601.1
Manufactured by xxxx (year).
Manufacturer
Symbols I and O regarding power switch signify power
connection and blocking, respectively.
Indicates Type B segregated patient connection.

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Indicates signal input and output connection.
This symbol indicates safety precautions. Understand
the related precautions thoroughly after reading the
manual prior to using the device.
Consult instructions for use.
Indicates safety grounding point connected to the
device’s sash. Subject Class I device’s conductive
part to protective grounding for safety purpose.
Alternating Current
Direct Current.
Serial Number
Humidity Limitation
Atmospheric Pressure Limitation