Yeasn HX-400 User manual

HX-400
Pupilometer
User Manual
Version: 1.4
Revision date: 2022.3

Product Name: Pupilometer
Nome do produto: Pupilômetro
Nombre del producto: Pupilómetro
Ürün Adı: Pupilometre
Nome prodotto: Pupillometro
Produktname: Pupillometer
Nom du produit : Pupilomètre
Име на продукта: Пупилометър
Produkto pavadinimas: Pupilometras
Nazwa produktu: Pupilometr
Název produktu: Pupilometr
Toote nimi: Pupilomeeter
Produkta nosaukums: Skolēna mērītājs
Όνομα προϊόντος: Μαθητή
User Manual Download link: www.yeasn.com/en/
Link para download do manual do usuário: www.yeasn.com/en/
Manual de usuario Enlace de descarga: www.yeasn.com/en/
Kullanım Kılavuzu İndirme linki: www.yeasn.com/en/
Manuale d'uso Link per il download: www.yeasn.com/en/
Link zum Herunterladen des Benutzerhandbuchs: www.yeasn.com/en/
Lien de téléchargement du manuel d'utilisation : www.yeasn.com/en/
Линк за изтегляне на ръководството за потребителя: www.yeasn.com/en/
Naudotojo vadovo atsisiuntimo nuoroda: www.yeasn.com/en/
Link do pobrania instrukcji obsługi: www.yeasn.com/en/
Uživatelská příručka Odkaz ke stažení: www.yeasn.com/en/
Kasutusjuhendi allalaadimise link: www.yeasn.com/en/
Lietotāja rokasgrāmatas lejupielādes saite: www.yeasn.com/en/
Εγχειρίδιο χρήστη Σύνδεσμος λήψης: www.yeasn.com/en/

Preface
Thanks for purchasing and using our pupilometer.
Please read this User Manual carefully before using this
device. We sincerely hope that this User Manual will provide you
with sufficient information to use the device.
Our pursuit is to provide people with high-quality, complete-function
and more personalized devices. Information in promotional materials
and packing boxes is subject to changes due to performance
improvement without additional notice. Chongqing Yeasn Science -
Technology Co., Ltd. reserves the rights to update the devices and
materials.
If you have any questions during using, please contact at our service
hotline: (86-023) 62797666, we will be very happy to help you.
Your satisfaction, our impetus!
Information of manufacturer
Name: CHONGQING YEASN SCIENCE–TECHNOLOGY CO., LTD
Address: 5 DANLONG ROAD, NAN’AN DISTRICT, CHONGQING,
CHINA.
Tel: 86-23 62797666

Content
1. Introduction..................................................................................... 1
2. Safety Notice .................................................................................. 5
3. Description of the structure ............................................................7
4. Preventive inspection.................................................................... 12
5. Operational Instructions................................................................ 12
6. Clean and disinfection of application parts .................................. 18
7. Maintenance.................................................................................. 18
8. Troubleshooting............................................................................19
9. Environmental Conditions and Service Life................................. 20
10. Environmental Protection ...........................................................20
11. Manufacturer’s Responsibility.................................................... 21
12. Guidance of EMC and other interference...................................21

1
1. Introduction
1.1 Uses
Principle: The pupilometer takes the advantage of the image-forming
principle of optical lens. Optical lens imprints the observed object at
a specified distance, then the patient watches at the observed object,
and the optometrist can find out the bright points of the observer’s
eyes via the measuring window, meanwhile the optometrist moves
the left and right measuring keys to make the related mechanical
hairsprings to coincide with the bright points of the observer’s eyes,
so as to measure the distance of the pupils.
Intended use: To measure the distance between the pupils of the
human eye.
Medical purpose: To measure the distance between the pupils of the
human eye.
Target groups of patients: adults, children.
Contact with human body parts:Nose and forehead.
Intended users: optometrists in hospital ophthalmology and optical
shops.
Specific qualifications of device users and/or other persons: have a
qualification certificate for optometry and glasses.
Contraindications: none.
1.2 Characteristics
This device is designed in a scientific and reasonable way,
integrating technologies on mechanical hairspring orientation

2
measurement system, optical system, ESS and microcomputer into a
whole.
*Using mechanical hairspring to level at the reflecting point of
human cornea to realize the consecutive measurement. It features
directness of point-sampling and high accuracy of orientation.
*Adopting line-shaped sensors of high definition, advanced
intellectualized electronic systems and digital display which allow
the testing results more visible, legible and accurate.
*LED lamp-house and a design of low-power consumption ensure
the prolonged service life of batteries.
*PD and VD measurement is available.
*It offers the +2.00D compensation for the degree of eyesight.
*The brightness of LED lamp-house is adjustable.
1.3 Main technical indexes
1.3.1 Effective range of measurement
Binocular pupillary distance: 45mm ~ 82 mm
Left or right pupillary distance: 22.5mm ~ 41 mm
1.3.2 Indication error: ≤0.5mm
1.3.3 Asymmetrical error: ≤0.5mm
1.3.4 Distance of target: 30cm ~ ∞
1.3.5 Power source: Voltage: DC 3V
Specification: 5# AA battery
Quantity: 2 pieces (2×1.5V AA batteries)

1.3.
6
Abo
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1.3.
7
1.3.
8
1.3.
9
1.3.
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1.4
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Time for au
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7
Size: 221m
m
8
Weight: 0.6
4
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4
CE marking
Correct Disposal of This Product (Waste Electrical &
Electronic Equipment)
Type B applied part(Nose Bearer and Forehead bearer)
Medical device
Expiration date
Consult instructions for use
Refer to instruction manual / booklet
Authorized European representative
Catalogue number
Unique Device Identifier
Model number
G.W. Gross Weight
DIM. Dimension
Fragile, handle with care
Keep dry
Temperature limit
Humidity range identification

5
Atmospheric pressure range identification
1.5 Part List
1)Pupilometer 1set
2)UserManual 1unit
2. Safety Notice
Please read the following precautions carefully to avoid
personal injury, device damages or other possible hazards:
●Use the device indoors and keep it clean and dry; do not use it
under inflammable, explosive, high temperature and dusty
environment;
●Do not use the device near water; also be careful not to make any
kinds of liquid drop onto the device. Do not place the device in damp
or dusty places, nor place it where humidity and temperature change
quickly;
●Do not dismantle or touch the interior parts of the device,
otherwise it may cause electric shock or device failure;
●The device has passed electromagnetic compatibility test. Follow
below instructions related to EMC (electromagnetic compatibility)
when mounting and using the device:
- Do not use the device with other electric devices to avoid
electromagnetic disturbance to the device;

6
- Do not use the device nearby other electric devices to avoid
electromagnetic disturbance to the device;
●Not used in oxygen rich environment, Not intended for use with
flammable anesthetics, Not intended for use with flammable agents.
●Pay attention to the polarity when changing the battery to prevent
battery short circuit.
●Notification:Any serious event related to the device to the user
and/or patient shall be reported to the manufacturer and competent
authority of the Member State where the user and/or patient is
located.
Caution: The user is cautioned that changes or modifications
not expressly approved by the party responsible for compliance could
void the user's authority to operate the equipment.
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