Huvitz HRK-8000A User manual

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User’s Manual
Auto Ref/Keratometer HRK-8000A

2Auto Ref/Keratometer HRK-8000A ---------------------------------------------------------------
IMPORTANT NOTICE
Potential electromagnetic or other interference between medical
equipments and other devices being operated together in the same
environmental may expert an adverse influence on functioning of the
medical equipment. Non-medical equipments not in compliance with
the requirements of EN 60601-1 and EN 60601-1-2 should not be
used together in the same environmental as the medical equipments.
This equipment has been tested and found to comply with the limits for
medical devices in IEC 60601-1-2:2001. These limits are designed to provide
reasonable protection against harmful interference in a typical medical
installation.
Power Cord
For use of equipment in rated voltage less than 125Vac,minimum 6A,Type SJT
or SVT , 18/3AWG,10A, max 3.0m long : One end with Hospital Grade Type,
NEMA 5-15P Other end with appliance coupler. For use of equipment in rated
voltage less than 250Vac,minimum 6A,Type SJT or SVT , 18/3AWG,10A, max
3.0m long : One end terminatesd with blade attachment plug(HAR) Type, NEMA
6-15P.
This product may malfunction due to electromagnetic waves caused by
portable personal telephones, transceivers, radio-controlled toys, etc. Be sure
to avoid having objects such as, which affect this product, brought near the
product.
The information in this publication has been carefully checked and is believed
!
WARNING

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to be entirely accurate at the time of publication. HUVITZ assumes no
responsibility, however, for possible errors or omissions, or for any
consequences resulting from the use of the information contained herein.
HUVITZ reserves the right to make changes in its products or product
specifications at any time and without prior notice, and is not required to
update this documentation to reflect such changes.
Ver 1.0
©2010 - 2011 - Huvitz Co., Ltd.
-689-3, Gumjeong-dong, Gunpoci, Gyeonggi-do,
435-862, Republic of Korea
All rights are reserved. Under copyright laws, this manual may not be copied, in
whole or in part, without the prior written consent of HUVITZ Co., Ltd.

4Auto Ref/Keratometer HRK-8000A ---------------------------------------------------------------
Provision of information on the avoidance of light hazard from the optical
device is required in ISO 15004-2:2007
“Ophthalmic instruments-Fundamental requirements and test methods”
The light emitted from this instrument is potentially hazardous. The longer the
duration of exposure, the greater the risk of ocular damage. Exposure to light
from this instrument when operated at maximum intensity will exceed the safety
guideline after 88 minutes.
< Spectrum output of all light source during measurement (maximum light intensity)>
!
CAUTION

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Contents
1. Introduction .............................................................................................................9
1.1. Overview .......................................................................................................9
1.2. Classificaiton ..............................................................................................10
2. Safety Information.................................................................................................11
2.1. Overview .....................................................................................................11
2.2. Safety Symbol ............................................................................................12
2.3. Environmental Considerations ...................................................................15
2.4. Safety Precaution .......................................................................................17
3. Characteristics ......................................................................................................20
4. Note for Use...........................................................................................................21
5. Names and functions of each part........................................................................22
5.1. Main parts...................................................................................................22
5.2. Explanation on Switches in Front ..............................................................25
6. Installation of Equipment & Preparation of Measurement..................................26
7. Exercise through Model Eye.................................................................................28
8. Measurement.........................................................................................................33
8.1. Refractometry (REF Mode) ........................................................................34
8.1.1. Manual Measurement Mode........................................................................35
8.1.2. Auto Measurement Mode.............................................................................40

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8.2. Keratometry (KER Mode)............................................................................43
8.2.1. Manual Measurement Mode ........................................................................43
8.2.2. Auto Measurement Mode.............................................................................46
8.3. Corneal Curvature / Refractive Power Measurement Mode (K&R Mode).47
8.3.1. Manual Measurement Mode ........................................................................47
8.3.2. Auto Measurement Mode.............................................................................50
8.3.3. Diverse Indications ......................................................................................51
8.4. Keratometry Peripheral Measurement (KER-P Mode)...............................52
8.5. Measurement of Contact Lens Base Curve(CLBC Mode) ........................56
9. Other Modes...........................................................................................................59
9.1. ILLUMINATION Measurement Mode (ILLUM Mode)...................................59
9.1.1. Adjustment of Array and Focus....................................................................59
9.1.2. Observation on Illumination..........................................................................62
9.1.3. Storage........................................................................................................63
9.1.4. Examination on the other eye ......................................................................63
9.1.5. Call for Stored Image...................................................................................63
9.1.6. Return to measurement mode .....................................................................65
9.2. ZERNIKE Mode ...........................................................................................66
9.2.1. Composition of Window...............................................................................66
9.2.2. Change of Window ......................................................................................71
9.3. Measurement of Corneal Radius(SIZE Mode) ...........................................72
9.4. VIRTUAL COMPARISON Mode ...................................................................76
9.5. COLOR VIEW MODE...................................................................................78
9.5.1. White LED ...................................................................................................80

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9.5.2. Blue LED.....................................................................................................81
9.5.3. Yellow Filter.................................................................................................82
9.5.4. Capture Screen ...........................................................................................83
9.5.5. Selected Capture Screen.............................................................................83
9.5.6. Return to measure mode.............................................................................87
9.6. DISPLAY Mode ...........................................................................................88
9.7. User SETUP Mode......................................................................................90
9.8. Power saving Function.............................................................................101
10. Self diagnosis & Maintenance ............................................................................102
10.1. Before calling for serviceman..................................................................102
10.2. Replacement.............................................................................................105
10.2.1. Printer paper..............................................................................................105
10.2.2. Chin rest paper..........................................................................................105
10.2.3. Replacing Fuse..........................................................................................106
10.3. Cleaning Equipment .................................................................................107
10.4. As changing the installation place of the equipment .............................107
10.5. Disposal....................................................................................................107
11. Service Information.............................................................................................108
12. Main Specifications.............................................................................................109
13. Accessories.........................................................................................................111
14. EMC Information..................................................................................................112
14.1 Guidance and manufacturer’s declaration – electromagnetic emissions ....112

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14.2 Guidance and manufacturer’s declaration – electromagnetic immunity......113
14.3 Guidance and manufacturer’s declaration – electromagnetic immunity......115
14.4 Recommended separation distances between portable and mobile RF
communications equipment and the EUT................................................................117
14.5 Immunity and Compliance Level................................................................118
14.6 Guidance and manufacturer’s declaration – electromagnetic immunity....119
15. Service Information.............................................................................................121

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1. Introduction
1.1. Overview
Auto Ref/Keratometer HRK-8000A is the equipment to provide the information of
Spherical, Cylindrical and Axis while measuring the refraction of examinee’s eyes.
Auto Ref/Keratometer HRK-8000A is the equipment that can measure the corneal
curvature of examinee. In addition, it can measure PD (=distance in between
pupils) and pupil size. Especially, as its peripheral (=corneal peripheral curvature)
measurement is possible as measuring the corneal curvature of examinee, it is
possible to know the information on the corneal peripheral curvature as well as the
corneal core curvature, which enables the exact prescription for the examinee.
This equipment shall provide the optimal optometry information with Illumination
(=observing illumination) to obtain an optimal figure of the eyes’state of examinee.
CLBC (Contact Lens Base Curve) measurement is also a basic function of this
product.
The HRK-8000A is provided with an Auto-tracking function and a motorized
chinrest function.
Auto-tracking mechanism that automatically achieves alignment in the up/down,
right/left direction and focusing.
A motorized up/down chinrest allows the operator to easily adjust the height of the
chinrest.