Yeasn YF-100 User manual

YF-100
Slit Lamp
User Manual
Version: 1.4
Revision Date: 2023. 01

Product Name: Slit Lamp
Nome do produto: Lâmpada de fenda
Nombre del producto: Lampara de hendidura
Ürün Adı: Biomikroskop
Nome prodotto: Lampada a fessura
Produktname: Spaltlampe
Nom du produit: Lampe à fente
Име на продукта: Прорезна лампа
Produkto pavadinimas: Plyšinėlempa
Nazwa produktu: Lampa szczelinowa
Název produktu: Štěrbinová lampa
Toote nimi: Pilu lamp
Produkta nosaukums: Spraugas lampa
Όνομα προϊόντος: Σχισμοειδή λυχνία
Numele produsului: Lampăcu fantă
Productnaam: Spleetlamp
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/
Link de descărcare manual de utilizare: www.yeasn.com/en/
Gebruikershandleiding Downloadlink: www.yeasn.com/en/

Preface
Thank you for purchasing and using our Slit Lamp.
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: [phone]

Content
1. Specifications ............................................................................................................... 1
1.1 Uses .................................................................................................................... 1
1.2 Microscope ......................................................................................................... 1
1.3 Slit Illumination.................................................................................................. 1
1.4 Base movement .................................................................................................. 1
1.5 Chin Rest unit..................................................................................................... 2
1.6 Voltage ............................................................................................................... 2
1.7 Weight and dimension........................................................................................ 2
1.8 Name plate and indications ................................................................................ 2
2. Safety Precautions ........................................................................................................ 4
3. Instrument structure...................................................................................................... 6
4. Installing..................................................................................................................... 11
4.1 Parts list ............................................................................................................ 12
4.2 Accessories list ................................................................................................. 12
4.3 Installing steps.................................................................................................. 13
4.3.1 Install Head rest unit (C) ............................................................................... 13
4.3.2 Install base unit (D) ....................................................................................... 13
4.3.3 Install Rail cover (E) ..................................................................................... 14
4.3.4 Install Slit projector unit (B).......................................................................... 14
4.3.5 Install Eyepiece unit (A)................................................................................ 15
4.3.6 Install Breath screen (F) ................................................................................ 15
4.3.7 Connect the plug............................................................................................ 16
4.4 Checking after installing................................................................................... 16
4.4.1 Power connection .......................................................................................... 16
4.4.2 Check each unit ............................................................................................. 16
5. User instruction .......................................................................................................... 17
5.1 Preparation before use ...................................................................................... 17
5.1.1 Diopter compensation accommodation ......................................................... 17
5.1.2 PD adjustment ............................................................................................... 18
5.2 Locate the head of the testee............................................................................. 19
5.2.1 Locate the head of the testee.......................................................................... 19
5.2.2 Fix the sight line of the testee........................................................................ 19
5.3 Three-dimensional location of the base operation object................................. 19

5.4 Illumination adjustment.................................................................................... 20
6. Maintenance ............................................................................................................... 22
6.1 Replace Chin-rest papers.................................................................................. 22
6.2 Maintenance and care ....................................................................................... 22
7. Cleaning and protection.............................................................................................. 22
8. Environmental Conditions and Service Life .............................................................. 22
9. Troubleshooting guide................................................................................................ 23
10. Circuit diagram......................................................................................................... 24
11. Manufacturer’s Responsibility ................................................................................. 24
12. Disposal and Environmental protection ................................................................... 24
13. Guidance of EMC and other interference................................................................. 25

1
1. Specifications
1.1 Uses
For eye examination and aid in the diagnosis.
Contraindications: none.
Target groups of patients: adults, children.
Intended users: optometrists in hospital ophthalmology and optical shops.
The people who use this product are ophthalmologists in hospitals or clinics, and optometrists in
optical shops. To operate this product, they should have relevant knowledge of eye examinations and
have the relevant skills to operate the product.
1.2 Microscope
1) Type Galileo binocular converging
2) Model of magnifying 5 steps by drum rotation
3) Eyepieces 12.5×
4) Total magnification rate 6.4×, 10×, 16×, 25×, 40×
5) Range of PD adjustment 55mm to 80mm
6) Diopter adjustment -5.00D to +5.00D
1.3 Slit Illumination
1) Slit Width 0mm to 14mm continuous (become a circle at 14mm)
2) Slit Length 1mm to 14mm continuous
3) Slit Apertures φ0.3mm, φ5.5mm, φ9mm, φ14mm
4) Slit Rotation 0° to 180°continuous adjustable from vertical to horizontal direction
5) Filters Heat absorption, redfree, cobalt blue
6) Illumination white LED bulb, brightness adjustable (lx)
1.4 Base movement
1) Longitudinal (In/Out) Movement 100mm
2) Lateral (Left/Right) Movement 100mm
3) Vertical (Up/Down) Movement 30mm
4) Horizontal Movement 10mm

1.5 Chin
1) Chin R
e
2) Fixatio
n
1.6 Volt
a
1) Power i
n
2) Output
o
3) Output
v
1.7 Wei
g
1) Packag
e
2) Overall
3) Net wei
* The des
i
notice.
1.8 Nam
e
Name plat
e
In case th
e
contact au
t
M
D
S
e
C
o
Rest uni
t
e
st Elevatio
n
n
light
ag
e
n
put of ada
p
o
f adaptor:
v
oltage
g
ht and d
i
e
Dimensio
n
weight
ght
i
gn and sp
e
e
plate a
n
e
and indic
a
e
name pl
a
t
horized di
s
M
anufacture
r
ate of man
u
e
rial numb
e
o
untry of
m
t
n
p
tor:
1
1
i
i
mension
n
6
1
1
e
cifications
n
d indica
t
a
tions are p
a
a
te is not p
s
tributors.
r
u
facture
er
m
anufacture
70m
m
Red
L
1
00-240 V
A
1
2 V DC 3.
3
i
lluminatin
g
6
30mm×46
1
8.5kg
1
5 kg
are subject
t
ions
a
sted on th
e
asted well
2
m
L
ED
A
C, 50/60
H
3
4 A; 40 V
A
g
lamp 3V,
0mm×400
m
to change
s
e
instrume
n
or the cha
r
H
z; 1.0-0.5
A
A
fixation po
i
m
m
s
due to tec
t to arise e
n
r
acters bec
o
A
i
nt lamp 3
V
hnical upd
a
nd
-users' no
o
me uncle
a
V
a
tes withou
t
tice.
a
r to recog
n
t
additiona
l
n
ize, pleas
e
l
e

3
CE marking
Correct Disposal of This Product (Waste Electrical & Electronic Equipment)
The applied part of the device is Type B (Head rest unit)
Medical device
Use-by 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
Attention! Please refer to accompanying documents
Nonionizing radiation
Fragile, handle with care
This way up
Keep dry
Do not roll
Stacking limit by 5
Temperaturelimit
Humidity limitation

4
Atmospheric pressure limitation
We will make available on request circuit diagrams, component part lists, descriptions that will
assist service personnel to repair those parts of ME equipment that are designated by the
manufacturer as repairable by service personnel.
2. Safety Precautions
The slit lamp is an instrument consisting of a high-intensity light source that can be focused to
illuminate the eyes with a thin beam of light. The binocular slit-lamp examination provides a
stereoscopic magnified view of the eye structures, which can be used for examination and auxiliary
diagnosis of a variety of eye conditions.
Please read the following matters needing attention carefully in case of personal injury, device
damages or other possible hazards:
●To avoid operation in flammable or explosive environment with dust, or high temperatures.
For indoor use only, keep the slit lamp clean and dry.
●To avoid operation near water and prevent any kind of liquid drop on the instrument.
●To avoid place in humid, dusty, or rapid humidity and temperature variation ambient conditions.
●Dedicated power adaptor configured for the device should be used: model GSM40A12
(component of device), Input 100V~240V 50/60Hz, Output 12V 3.34A.
●Do not plug in patch board or power extension cords.
●For emergency situations, cut off the power supply firstly, but avoid pull the power cord.
●Wet hand is not allowed to touch power to avoid shock.
The power cord is forbidden to tread, knot and place heavy object on.
●Not position the device to make it difficult to disconnect the supply mains.
●Check the power cord frequently and before operating to avoid fire and electric shock.
●Disconnect the plug before clean and disinfection.
●Cut off power and put on dust cover when not using it.
●To prevent the instrument from falling and breakdown, it shall be properly installed or placed on
a sound and hard surface, with an inclination angle of less than 10°
●Do not disassemble the instrument or change the electrical system.
●In case of moving the installed instrument in short distance, please lock all movable parts. During

5
movement, please push with hand holding the table top with hand or hold with two hands. If it is
long distance movement, please put it back to the original package firstly.
●Electrical medical devices and systems are subject to special EMC measures and must be
installed in accordance with the EMC instructions contained in this accompanying document.
－Portable and mobile HF communication systems may interfere with electrical medical devices.
－The operation of other lines or equipment than those listed may lead to higher emissions or may
reduce the device's resistance to interference.
- Do not use a power adaptor that is not configured with the device, otherwise it may increase the
electromagnetic emission amount, which may reduce the capacity of resisting disturbance.
●In case of a problem, please refer to the troubleshooting guide.
●Do not serviced or maintained while in use with the patient.
●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.