User's Manual
YE8900A
Electronic Blood Pressure Monitor
Please rea d the user 's ma nua l closely before using!
7 3 01 97-1C
Metrax GmbH
Rheinwaldstr. 22, D-78628 Rottweil, Germany
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY CO.,LTD.
NO.1 Baisheng Road Development Zone, Danyang,
Jiangsu 212300 CHINA
www.yuwell.com
Measuring posture
Using method
Wear the monitor on the wrist as the following picture.
The suitable circumference for wrist is 13.5cm~19.5cm.
Sit still for 5 minutes.
Keep the monitor and heart at
the same level.
Measuring posture
Press the " " button to measure.
Do not speak or move while measuring.
Don't eat, smoke, drink, take bath or do any high impact sport
within half an hour before measuring.
m
Soft pillow
Important notes
Maintenance
Parts
Battery installation
Using method of cuff
Measuring posture
Start measuring
Memory function
Time and date setting
mmHg/kPa setting
Static mode
Common question of blood blood Pressure
measurement
Common fault and trouble shooting
Technical parameters
Electromagnetic compatibility information
01
05
07
08
10
11
13
17
19
20
21
23
25
26
29
Contents
1. Range of application
2. Attention items
This product is intended to measure the blood pressure and pulse rate of
adult at household or medical center(not suitable for neonate, pregnancy
or pre-eclampsia.)
Pay attention to the following points when measuring or it may cause the
incorrect results.
Sit still for 5 minutes before measuring to ensure quiet and stable mode.
Do not take the measurement while standing, walking or having body pressed.
Do not take the measurement within 1 hour after smoking, drinking wine
or coffee (black tea).
Do not take the measurement after sport or bath.
Do not speak, move, shake arm or bend fingers while measuring.
Do not take the measurement at extreme temperature condition or the
varied severely environment.
It will affect the measurement accuracy if the wrist circumference is out of
the given value .
signs and symbols
02
Important notes
01
Important notes
Pay attention with the symbols shown here to prevent harm or damage to
the user.
Attention
Type BF application part
Consult the manual
Manufacture
Date of manufacture
EC-Representative
Note on important information
Symbol for the marking of electrical and electronics devices according
to Directive 2002/96/EC
Humidity range
Safety and environmental protection use period for 10 years
This device fulfils the provisions of EC directive 93/42/EEC (Medical
Device Directive).
Temperature range
Atmospheric pressure range
Avoid compression or bending of the cuff connection tubing while using
the device.
Please using soft dry cloth stained with 75% ethanol to clean the device
in the case of many people use it,but do not let the ethanol flow into the
monitor and arm cuff.
Please use the alkaline battery,do not use the rechargeable battery.
Note：Do not diagnose with the measurement, Please follow doctor's
nstruction.
Statement：If the monitor has not been stored in the required
temperature and humidity range, it may not conformance to
specification.
04
Important notes
03
Important notes
The incorrect measurements of the equipment may be caused by external
interference,such as accelerating during transportation or transportation.
Do not measure continuously. (5minutes or more should be spared
between two measurements).
Do not use mobile phone near the monitor.
Please reinstall the batteries and start again if cannot measure.
For patient of arrhythmia, measuring results may not be accurate.
Do not keep the cuff in the aerated state for a long time.
The patient is an intended operator,this monitor is used for adult whom
more than 12 years old.
Do not swallowed small parts that may cause choking hazard.
The device must not be used with high frequency surgical equipments.
Do not use the CUFF over a wound arm or being on an intravenous drip.
Consult your doctor if using the device onthe arm with an arterio-
venous (A-V) shunt.
Do not use the cuff on the arm where the side of a mastectomy.
Note that It will lose function on the same limb while cuff inflating.
Do not allowed frequent measurements,the resulting restriction of the
blood flow may cause injury.
Main part
Battery cover
Memory
button
Display
Position light
Start/Pulse
button
Cuff
m
DIA
pulse
/min
SYS
Time and date
SYS(systolic)
DIA(diastolic)
Memory
Records number
Inflation
Deflation
Low voltage
Pulse rate
Blood Pressure level display
Cuff�Wrapping�Detection
Body Movement Detection
Heartbeat IHB Prompt
Replace Battery
PM
AM
Please store the monitor and accessories properly after use.
Do not place the monitor and accessories in high temperature, moisture,
dust, or exposure to sunshine.The cuff contains an airbag inside, please
care in applications, do not fold, pull or twist it.
Do not disassemble or repair the device without authorization.
Do not modify the device without authorization.
Please clean the monitor with soft dry cloth. If it's necessary, please use
wiped soft cloth with water or neutral detergent before cleaning by soft
dry cloth.
Using absorbent cotton to wipe gently with rubbing alcohol, disinfection
of the machine when it necessary. Do not use detergent to clean.
Do not let water seep into the device.
Please observe the following items to protect the device and ensure the
accuracy of measurement.
We advice to calibrate the monitor according to local laws and regulations
(at least once a year) .
Tips!
06
Maintenance
05
Parts
1. Open the battery cover in the
direction of the arrow
Note：Press the two sides bulge
of the battery cover tightly and
pull outward.
2. Install two AAA batteries
properly.
3. Close the cover .
m
m
m
m
◆ 2 AAA batteries
◆ User's manual(Warranty card)
Accessories
Battery
08
Parts
07
Battery installation
3. Please stick the cuff firmly,Or it may get loose while measurement and
affect the measurement results.
4. Wind the spare part of cuff properly.
Either of wrists can be measured.
About 1~1.5cm
13.5-19.5cm
Tips!
m
1.
2. The distance between palm and the end of monitor should be about
1.0cm~1.5cm.
Please wear the cuff on bare wrist not too loose or too tight ,do not leave
cloth inside of the cuff.
If accidentally strayed the electrolyte of battery into eyes, skin or cloth,
please rinse with plenty of water.
The" "icon appearing means the battery is running out. Please replace
both the batteries.
Please take out the batteries if the monitor will not be used for a long
time (over three months).
Please do not mix new batteries with old batteries .
Notes:
Please dispose batteries in accordance with the local environmental law.
10
Battery installation
09
Using method of cuff
Wrong measurement postures
1. Do not clench fists, or may cause higher blood pressure.
2. Do not hold the cuff with another hand.
3. Do not hold the arm hard while measurement. If it is necessary please
support the arm with a soft pillow.
Figure 2
The correct wrist posture(as Figure 2)
NOTE: Relax fingers and keep a natural extension of state.
About 1~1.5cm
13.5-19.5cm
m
1.Sit on a chair with your feet flat on the floor.
2.Do not sit with legs crossed.
3.Sit upright with your back straight and keep relax. (as Figure 1)
4.Sit with your back and arm being supported，We suggest supporting
the arm with a soft pillow.
5.Keep the monitor and heart at the same level.
Do not talk, move , shake hand or bend
fingers while measurement.
Soft pillow
Figure 1
12
Measuring posture
11
Measuring posture
The beginning of the measurement ,Press the " " button to start
measuring after batteries installation.Then the monitor starts
pressurizing.
1.
Please contact with doctor for advice if the SYS is higher than 140mmHg
or DIA is higher than 90mmHg.
Also The Blood pressure range indicator can show the blood pressure
intuitively.
Higher than 140mmHg
Higher than 90mmHg
a. Do not move and keep quiet until measurement finished.
b. Keep the monitor and heart at the same level.
c. Restart if the cuff got loose while measurement.
d. Press the " " button to stop measurement. If it does not work,
please take off the cuff.
Warning: Upper limit pressure of air inflation is 300mmHg/40.0kPa.
Don't keep the inflated state for a long time to avoid damage.
e. The time interval between two measurements should be at least 5
minutes or longer.
DIA
pulse
/min
SYS
m
Sit still for 5 minutes before the measurement
m
Full screen display state
PMAM
14
Start measuring
13
Start measuring
This device uses the oscillometric method of blood pressure
measurement.
The monitor starts measuring automatically after pressing
“ ”button,and the icon" " starts to flicker, Pressure rises
gradually.
Please maintain the position during the measurement and don't speak or
move body or hand.
After measurement, the monitor will show the SYS, DIA and pulse rate, then
deflate automatically.
2. Measurement finished
The measuring state
mmHg display kPa display
Press the" "button to shut down. Then it will power off automatically
in 120 seconds without any operation.
3. Take off the cuff
4. Shut down
16
Start measuring
15
Start measuring
Press the both " " button and" m " button in memory display until the
display shown as the following picture, which means the recorded
values will be cleared.
C. Read the recorded data by pressing the" m " button as the sequence:
"1", "2" ......"60"(max). Then return to the 1st.
D. Holding the " m " button to search the data quickly.
B. Press the " m " button again to display the 1st group of memory, the
serial number is displayed as "1" to "60". "1" is the latest group and the
"60" is the earliest one.
Note: This operation will delete all the recorded values.
SYS
DIA
pulse
/min
m
SYS
DIA
m
pulse
/min
m
1. Press the " m "button for the records.
A. Press the" m "button to show the average value of the latest 3 times
measurement.
The 60th data may be replaced by the 59th when the memory
capacity is full.
2.Delete the recorded data
18
Memory function
17
Memory function
Tips!
After finishing the time and date setting, pressing the " " button to enter
the mmHg/kPa unit setting. Press the " m "button to switch between these
two units. Finish by pressing the " " button.
1. Year setting: Press the
" m "
button and " " button for more than
3 seconds till the number starts flashing.
2. Press the
" m "
button to advance by increments of one year.
3. Press the " " button to switch to the month setting.
4. Using the same way for other settings.
The monitor will store the measuring results automatically by the
management system.
It is necessary to reset time and date after installing new batteries . Please
operate as following steps. (For example: setting the date as 2016-6-11 and
time as 08:18)
Year character blink Date character
Minute character blink
Month character blink
Hour character blink
Y
M
D
M
D
20
Time and date setting
19
mmHg/kPa setting
Time and date setting Unit setting
2. Entering the static mode
Press the ''
m
'' button and hold,
meanwhile install the batteries. Hold on
for about 3 seconds then release the
''
m
'' button. Then screen will show
the pressure value'' '' , the date and
time. Now the system has restored and
entered the static mode. Now can take
the static test.
After entering the static mode, if the screen still doesn't show
'' '', please operate again as the System restore. Please contact
with the local distributor if it still does not work.
The monitor will automatically power off if there is no operation in
4 minutes.
This function is mainly for professional personnel to enter the static mode
to test the monitor through standard pressure gauge.
Warning: Normal users don't need to know this function and also do not
operate. The company will not take any responsibility for damage
caused by this operation.
Note: It must restore the system before entering the static mode, otherwise
it may cause inaccurate results.
1. System restores
Press the '' '' button after battery installation, then the screen will show
the'' '' icon, which means the system is in restore testing. Several seconds
later , the '' '' icon disappears and the air pump starts inflating at
the same time, which indicates the test ended. Then press the '' '' button
to stop inflating and take out the batteries to enter the next step.
22
Static mode
21
Static mode
Tips!
Diabetes, high blood lipids, hypertension will accelerate atherosclerosis and
cause nerve ending dysaemia. The blood pressure on wrist and upper-arm may
have a significant difference on these patients. Even if in unsuitable conditions,
healthy persons may cause about 20 mmHg( 2.6kPa) difference. So we suggest
do not diagnose by oneself, please consult the doctor.
Normally, the blood pressure on wrist and upper-arm are same.But circulatory
system disorders may have a significant difference. Please manage your blood
pressure with experts.
Healthy persons have a 20 mmHg(2.6kPa) difference between blood pressure
on wrist and upper-arm.
If wrist and heart are not at a same level, the blood pressure will change as a
result of the weight of blood. When the wrist is higher than the heart,
the value measured will be lower, and vice-versa. Every 10cm about 8 mmHg(1kPa)
difference. Of course the value is more closely related to the measuring posture.
About the blood pressure on wrist and upper-arm
About measuring posture
2423
1. What is blood pressure?
Blood pressure is the force exerted by blood against the walls of the arteries.
Systolic pressure occurs when the heart contracts. Diastolic pressure occurs
when the heart expands. Blood pressure is measured in millimetres of mercury
(mmHg). One's natural blood pressure is represented by the fundamental
pressure, which is measured first thing in the morning while one is still at rest
and before eating.
2. WHO Blood Pressure Classification
Standards to assess high blood pressure, without regard to age,have been
established by the world Health Organization (WHO), as shown below:
Range Systolic pressure Diastolic pressure Counter-measures
Hypotension ≤13.3/100 ≤8.0/60
Ortho-arteriotony 13.3/100~18.7/140 8.0/60~12.0/90
Mild hypertension 18.7/140~21.3/160 12.0/90~13.3/100
Medium hypertension 21.3/160~24.0/180 13.3/100~14.7/110
Severe hypertension ≥24.0/180 ≥14.7/110
Consult dr.
Self check
Consult dr.
Consult dr.
Danger! Go
to hospital
as soon as possible
kPa/mmHg kPa/mmHg
Common questions of blood Pressure
measurement
Common questions of blood Pressure
measurement
Common fault Solutions
It doesn't work after pressing the
'' '' button with batteries
installation
Multiple occurrences of measuring
failure, or measured value is
low (or high)
Check the batteries are installed correctly
Replace new batteries
Check the connection and winding of cuff
Check if the cuff winded too tight or too
loose. Take off your clothes if rolled too tight
Please ensure a quiet, relaxed body state .
Deep breathing to relax yourself before
measurement
Please read the "blood pressure variations"
carefully
Write down the value every day,
and consult a doctor
Check whether the cuff has connected well
The monitor is in good condition,
but the each measuring result are
different
The value is different from that
measured at a clinic or doctor's office
Pump works, but the pressure
doesn't rise
2625
Common fault and trouble shooting
Warnning：If the situations can not be solved or unexpected problem
happens，please consult the local distributor.
The table below shows the possible fault displaying icon, possible reason, and
solutions.
Wrong
indication
Err 4
Err 5
Err 6
Err 7
Err 8
Unable to measure pressure
Pressurizing error
Pressurizing error caused by
arm or body motion
Cuff is too loose or fall off
Pressure exceeds the maximum
value (300mmHg)
Battery is low
Fasten cuff correctly before
measurement
Check if there is air leakage from the
cuff
Keep arm and body still and measure
again
Fasten cuff tightly
Replace new batteries
Fault cause Solution
Showing low
voltage icon
" "
Measure again please
Err 3
Air leakage
Check the cuff
Common fault and trouble shooting
YE8900A
LCD digital display
Oscillation mensuration
0-300mmHg
40-200 time/min
Pressure:±3mmHg(±0.4kPa)
Pulse:±5% of reading value
2X1.5V AAA batteries
Model
Display
Measuring method
Measuring range
Precision
Power supply
Approx. 300 times, depending on levels
of blood pressure and pump pressure
13.5~19.5cm
Approx.90g(without batteries)
5 years or 50 thousand times
Battery life
Cuff size
Service life
Weight
Continuous operation
Working system
60 memory spaces
Memory
Electric classification =type BF application part
Dimensions
Approx.L76 mm x W70 mm x H23 mm
28
Technical parameters
27
Technical parameters
+5℃ to+40℃/15% to 90%RH
(non-condensing)
Operating temperature
/Humidity
The contact materials detail of product
Part
Material
Rear Cover
Top Cover
ABS
ABS
Magic paster
cloth
Cuff
PC
Nylon
Dacron
Panel
The SPHYGMOMANOMETER was clinically investigated according to the
requirement of ISO 81060-2:2003.
The SPHYGMOMANOMETER complies with IEC 80601-2-30.
Statement！
Cuff Pressure
Pulse rate
0-450mmHg
-20℃ to +55℃/15% to 90%RH
(non-condensing)
Storage temperature
/Humidity
Operating/Storage
atmospheric pressure
70kPa to 106kPa
IP20IP Classification
30
Electromagnetic compatibility information
29
Electromagnetic compatibility information
There is the potentia risk of radio frequency interference between the device
and other devices. If there is, please find out the problems and take the
following measures:
(1) Turn off the device, and turn on again,
(2) Change the direction of the device,
(3)Keep the product away from the interferential devices.
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 SPHYGMOMANOMETER,
including cables specified by the manufacturer. Otherwise, degradation of
the performance of this equipment could result.
This equipment might not offer adequate protection to radio-frequency
communication services. The user might need to take mitigation measures,
such as relocating or re-orienting the equipment.
When the instrument is in use,never put it near other instruments or stack
it on other instrument. if you have to put it near other instruments or
instruments, please inspect and verify if the instrument could run normally.
Table 1
Emission test
Compliance
Group 1
RF emissions
CISPR 11
RF emissions
CISPR 11
Class B
Guidance and manufacture' s declaration-electromagnetic emission
The YE8900A Wrist Digital Blood Pressure Monitor is intended for use in the
electromagnetic environment specified below. The customer or the user of YE8900A
Wrist Digital Blood Pressure Monitor should assure that it is used in such an environment.
Table 2
Immunity
test
IEC 60601
test level
Compliance level
Guidance and manufacturere' s declaration-electromagnetic immunity
The YE8900A Wrist Digital Blood Pressure Monitor is intended for use in the
electromagnetic environment specified below. The customer or the user of the YE8900A
Wrist Digital Blood Pressure Monitor should assure that it is used in such an environment.
±8 kV
contact
±15
kV air
±8 kV
contact
±15
kV air
Electrostatic
discharge(ESD)
IEC 61000-4-2
Power
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
30A/m
50Hz or 60Hz
3A/m
50Hz or 60Hz
Electromagnetic compatibility information
32
Electromagnetic compatibility information
31
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio
(cellular/cordless) telephones and land mobile radios, amateur
radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with
accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an
electromagnetic site survey should be considered. If the measured field strength in the
location in which the YE8900A Wrist Digital Blood Pressure Monitor is used exceeds the
applicable RF compliance level above, the YE8900A Wrist Digital Blood Pressure Monitor
should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating theYE8900A
Wrist Digital Blood Pressure Monitor.
Table 3
Immunity
test
IEC 60601
test level
Compliance level
Guidance and manufacture' s declaration-electromagnetic immunity
The YE8900A Wrist Digital Blood Pressure Monitor is intended for use in the
electromagnetic environment specified below. The customer or the user of the YE8900A
Wrist Digital Blood Pressure Monitor should assure that it is used in such an environment.
10 V/m
10 V/m 80 MHz to 2.7 GHz
80% AM at 1 kHz
Radiated RF
IEC 61000-4-3
34
Electromagnetic compatibility information
33
Electromagnetic compatibility information
Modulation
b)
Band
a)
(MHz)
Test
frequency
(MHz)
a)
Service
18 Hz
Pulse
modulation
b)
Table 4
Maximum
power
(MHz)
IMMUNITY
TEST LEVEL
(V/m)
Distance
(m)
380-390
TETRA
400
1,8 0,3 27
385
430-470
FM
±5 kHz deviation
1 kHz sine
2 28
450
GMRS 460
FRS 460
,
0,3
710
704-787
LTE Band
13 17,
0,3 9
745
780
Pulse
modulation
b)
217 Hz
0,2
810
800-960
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
0,3 28
930
Pulse
modulation
b)
18 Hz
2
1720
1700-1990
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1,3,
4,25; UMTS
0,3 28
1970
Pulse
modulation
b)
217 Hz
2
870
1845
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
0,3
2450
Pulse
modulation
b)
217 Hz
2400-2570
2 28
WLAN 802.11
a/n
0,3
Pulse
modulation
b)
217 Hz
5240
5500
5785
5100-5800
0,2 9
NOTE If necesary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting antenna and the
ME EQUIPMENT or ME SYSTEM may be reduced to 1 m. The 1 m test distance is permitted by IEC61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50% duty cycle square wave signal.
c) As an alternative to FM modulation, 50% pulse modulation at 18 Hz may be used because while it does not
represent actual modulation, it would be worst case.
