Yuwell YT-1 User Manual
1. Device use and applicant scope
●Intended use and application scope: This device is
used to measure the forehead temperature of the
human body, It is intended for use on people of all
ages except pre-term babies or very small(small for
gestational age) babies.
●Contraindication: None.
2. Device structure and composition
●Device main structure and composition
The thermometer consists of a housing, asensor,
a display, and a circuit board.
temperature
probe
LCD display
prompt tone
key
area
ranging
probe
power on
measurement
button
battery
cover
●LCD area
mute prompt
distance prompt
result display
temperature unit
battery
reminder
distance unit
●Appendix：
Instructions, 2 AAA Alkaline Batteries.
01 03 0402
3. Matters need attention
Warnings:
1.The measurement result is only for reference,
which is not a substitute for a physician's diagnosis. It
is very dangerous to self-judge and treat only based
on the measurement result. Please follow the
doctor's instructions.
2.Please put the battery out of the reach of children,
otherwise it is dangerous.
3.When the product is not used for a long time (more
than 3 months), remove the battery from device to
prevent the battery leakage.
4.If there is temperature difference compared
environment of the device storage with that of the
measuring environment, place the device in the
measuring environment for more than 30 minutes,
otherwise there may be error for the measurement
result.
5.It is forbidden to immerse the infrared thermometer
in any liquid, and It is forbidden to use it for a long time
under too high or low temperature condition. No
collisions, drops and mixing with sharp objects.
6.Do not put the battery close to the fire or into the fire
to avoid the battery explosion. Do not use the battery
when it leaks or molds; when discarding batteries or
this product, it should be following local regulations to
avoid contamination.
7.This product contains sensitive electronic components, should avoid strong electromagnetic interference.
8.Do not modify this equipment without the authorization of the manufacturer, which may lead to
measurement error or machine malfunction.
9.If the situations cannot be solved or unexpected
problem happens, pleaseconsult the local distributor.
Caution:
10.Do not try to measure when the device is wet,
which may cause measurement results inaccurate.
11.Before measurement, please make sure that
there is no sweat, cosmetics or oil stains on the
forehead of subject. please make sure that the
subject does not take a bath, exercise or have a meal
within 30 minutes, and the body is measured at a
steady state.
12.During measurement, do not let the subject
directly face the air outlet of the sun, air conditioner or
heater, which will change the temperature of the
forehead. Please conduct measurement in a stable
environment as far as possible.
13.When the product gets wet due to contact with
steam, use after it become dry or gently wipe with a
soft dry cloth or cotton ball, otherwise it will cause
measurement errors.
14.For patients measuring their own temperature, it
is recommended to measure close to the forehead.
15.Please read this instruction carefully before use to
confirm that the battery is installed.
This product contains batteries and recyclable
electronic waste. To protect the environment, do not
dispose of it in the household waste, but take it to
appropriate local collection points.
4. Measurement and transport storage
environment
●measurement environment:
Environment temperature: 10℃ (50℉)to 40℃(104
℉)
Relative humidity: 15% to 90%RH (
non-condensing
Atmospheric pressure: 70kPa to 106kPa
●Transportation and storage environment:
Environment temperature: -20℃(-4℉)to+55℃(131
℉)
Relative humidity: 15% to 90%RH (
non-condensing
Atmospheric pressure: 70kPa to 106kPa
5. Installation and usage
●Installing the battery
The device is supplied with 2
Section 7 alkaline batteries. Push
the battery cover downward and
load the battery into the battery
compartment. At this time, the
device will start self-inspection.
AAA
AAA
Pay attention to the positive and
negative poles instruction in the
battery compartment and cover the battery cover.
Refer to the picuture at right:
●Setting measure unit
In the shutdown state, long press the staring
measuring button “ ”for 10 seconds to enter
the temperature unit conversion state, and then
short press the staring measuring button“ ” to
select “ ”and“ ”temperature unit，then
long press the staring measuring button“ ”final
confirmation.
●Measure temperature of human body
1.Point the infrared thermometer probe at the center
of eyebrow, within 0-5cm of the forehead.
2.Press the Start measuring button “ ”. After
about 1 second, the infrared thermometer will have
vibration and sound prompts to display the measurement results.
Notes:
①When the measurement
distance is more than
about 5 cm, the word "0-5"
will be displayed on the
screen, please close to the
subject, as the picture
shown at right;
measurement indication]
②When the measurement distance is less than
about 5 cm, the device will automatically measure,
after the measurement, it will vibrate and have "di"
sound, and measurement result will be displayed.
)
③When temperature is 37.6 ℃(99.7
device will make quick continuous three-time
"di-di-di"alarm sound.
④when the measured result is beyond device
measurement range 32 ℃~43 ℃(89.6
)
thermometer will make quick continuous three-time
"di-di-di" alarm sound, please make sure the
measurement method and the external environment
is normal at this time.
●Sound on/off setting
When the prompt on/off button slides to " ", the
sound is off;
When the prompt on/off button slides to " ", the
sound is on.
●Power off
① Long press Starting measurement button" " for
3~5 seconds to turn off the device;
②In the absence of any operation, the device will
automatically shut down after about 30 seconds.
6. Product maintance and upkeep method
As the product is reusable device, please pay
attention to cleaning and disinfection after use.
If the product is dirty, please keep the sensor and
probe cavity clean, otherwise the measurement
accuracy will be affected.
How to clean sensor and probe cavity:gently wipe the
inner cavity or sensor mirror with a clean soft cloth or
cotton swab, Do not wipe it with other material,
[close to the
℉)
or higher, the
℉
~109.4℉),
otherwise it may cause lens surface of senor
abrasion or machine malfunction.
Disinfection of the product and its head: Gently wipe
the surface of the product and the head used for
measurement with a cotton swab dipped in a little
medical alcohol (70%), it can be used until the alcohol
has completely evaporated.
●Precaution for storage
This product should be stored in a dust-free, dry
place, please avoid direct sunlight; do not store in
places with high temperature, humidity, dust and
corrosive gas.
This product is a high-precision device, please do
not drop the device! Avoid drastic collisionsand jolts
and other adverse possibilities for transport.
If the probe or the product itself has been damaged,
do not continue to use it. Please do not use this
product for any purposes other than its intended use.
When it is used for children, please observe the
general safety precautions.
We suggest to calibrate the monitor (at least once a
year) according to local laws and regulations.
7. Common failures and troubleshooting
methods
Phenomenon
of breakdown
The
screen
display
" "
The
screen
display
" "
The
screen
display
" "
The screen
display
" "
No
display or
abnormal
display
Possible cause
The measurement
temperature is lower
than 32℃(89.6
which is beyond the
measurement range
The measurement
temperature is higher
than 43℃(109.4
which is beyond the
measurement range
The environment
temperature is too
high or too low
The power of cell is
shortage
The positive and
negative poles of the
cell are reversed or the
device is abnormal
Troubleshooting
Please re-measure
following the
℉)
,
product instruction
Please
re-measure
℉
),
following the
product instruction
Please measure
under the
℉)to 40℃(104
℉)
temperature
Change the cell
Re-install the cell, or
contact the dealer
methods
10℃ (50
environment
05 06 07
8. The symbols related to safety requirements in
this device and their meanings:
Symbols Implication
Equipment with type BF applied parts
Warnings and precautions
poly propylene recycling
Manufacture
EC REP
EC-Representative
Follow instructions for use
Symbol for the marking of electrical
and electronics devices according to
Directive 2002/96/EC
Safety and environmental protection
use period for 10 years
Prevent the invasion of solid objects
larger than 12mm. When the lamp is
tilted 15 degrees, it can still prevent
IP22
the invasion of dripping water. When
the lamp is tilted to 15 degrees from
the vertical Angle, the dripping water
will not cause harmful effects.
Temperature range
Humidity range
Atmospheric pressure range
This side up
Fragile
Non-rainproof
This device fulfils the provisions of EC
directive 93/42/EEC(Medical Device
Directive).
See instruction for use
Date of manufacture
9. Product technical parameters
●Power source: DC 3V( 2 Section 7 alkaline
batteries)
●Measurement range: 32.0℃～43.0℃(89.6
109.4
℉
)
●Display resolution: 0.1℃(0.1
℉)
℉
●Measurement accuracy: ±0.2℃(±0.4℉) in the
range of 35.0℃～42.0℃(95.0
±0.3℃(±0.5
℉
～94.8℉) and 42.1℃～43.0℃(107.8℉～109.4℉)
℉)
in the range of 32.0℃～34.9℃(89.6
℉
～107.6℉)
●Electric shock protection: the device is supplied
by internal power
●Applied part:
probe
Type BF applied parts is the
●Running mode: continuous running
●Temperature units: ℃/℉
●Measuring site: forehead
●Time interval of each measurement ≤1s.
●measurement time: ≤1s.
●Degrees of protection against ingress liquid: IP22
●Safety classification: the device that cannot be
used in the presence of flammable anesthetic
gases mixed with air or oxygen or nitrous oxide
●Product size: 149×38×42(mm)
●Product weight:about 68g (not including cell)
●service life:5years
●The clinical thermometer is a direct mode
●Battery replacement cycle: use the new battery
for no less than 3000 measurements
10. Temperature sense
The normal body temperature of people is a range,
different people's normal body temperature varies,
and individual body temperature will change at
different times.
The normal body temperature of most people is
provided as follows, just for reference
（The measurement of yuwell thermometer
refers to axillary）
Axillary temperature：
36.0℃～37.4℃/96.8℉～99.32℉
Oral temperature：
36.3℃～37.2℃/97.34℉～98.96℉
Rectal temperature：
36.9℃～37.9℃/98.42℉～100.22℉
11. Replacing the batteries
～
JIANGSU YUYUE MEDICAL EQUIPMENT & SUPPLY., LTD.
Manufacturing Address: YunYang Industrial Park
DanYang, Jiangsu Province, P.R. China, 212300
http://www.yuwell.com
Revision date:03MAR20
1730207-0A
1.Battery replacement: When " " symbol is
displayed, Replace with 2 new AAA batteries ,
slide open the battery cover and remove old
batteries.Replace the batteries being sure to align
properly as indicated inside the battery compartment.
2.Remove the battery from the product if it is not
required for extended periods of time in order to
avoid damage to the thermometer resulting from a
leaking battery.
3.To protect the environment, dispose of empty
batteries at appropriate collection sites according
to national or local regulations.
12. Product warranties
1. The thermometer is initially calibrated at the time
of manufacture.If at any time
Youquestion the accuracy of temperature
measurements, please contact customer service.
2.This product provides free maintenance service
for one year. If you need to provide circuit diagram,
necessary materials and maintenance of electrical
circuit for any problem, please contact the
manufacturer.
3. No free warranty service will be provided for the
faults caused by the following users:
1) failure caused by unauthorized disassembly and
modification of products.
2) failure caused by product drop.
3) failure caused by failure to operate according to
the instructions.
4)failure caused by lack of reasonable maintenance.
5) damage caused by external force.
4.This product will not cause allergic reaction and
harm to human body during normal use.
08 10 1109
13. Electromagnetic compatibility
information
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 , 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
Instrument or stacked other
instruments, please inspect and verify if the
instrument could run normally.
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.
Table 1-Compliance information for Emission test
Emission test
RF emissions
CISPR 11
RF emissions
CISPR 11
Compliance
Group 1
Class B
Table 2-Compliance information for Immunity test
Immunity
test
Electrostatic
disc harge
(ESD)
IEC 61000-4-2
Power frequency(50Hz)
magnetic field
IEC 61000-4-8
Radiated RF EM fields
IEC 61000-4-3
Compliance
level
±8 kV contact
±15 kV air
30A/m
50Hz or 60Hz
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
Table 3-Test specifications for ENCLOSURE
PORT IMMUNITY to RF wireless communications
equipment
Test
frequency
(MHz)
385
450
710
745
780
810
870
930
1720
1845
1970
2450
a)
Band
(MHz)
380-390
430-470
704-787
800-960
1700-1990
2400-2570
a)
Service
TETRA 400
GMRS 460,
FRS 460
LTE Band
13,17
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
GSM 1800;
TETRA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
Bluetooth,
WLAN,
802.11 b/g/n
RFID 2450,
LTE Band 7
Modulation
Pulse
modulation
18 Hz
FM
±5 kHz
deviation
1 kHz sine
Pulse
modulation
217 Hz
Pulse
modulation
18 Hz
Pulse
modulation
217 Hz
Pulse
modulation
217 Hz
5240
5100-5800 WLAN 802.11
5500
5785
Test
frequency
(MHz)
b)
b)
b)
385
450
710
745
780
810
870
930
1720
1845
1970
2450
5240
5500
5785
Maximum
power
(MHz)
1,8
2
0,2 0,3 9
2 0,3 28
2 0,3 28
2 0,3 28
0,2
a/n
Distance
(m)
0,3
0,3
0,3 9
Pulse
modulation
217 Hz
IMMUNITY
TEST LEVEL
(V/m)
27
28
b)
14. Warranty card
Warranty card
Product name:
Infrared thermometer
Model:
YT-1
NOTE If necesary to achieve the IMMUNITY TEST
LEVEL, the distance between the transmitting
b)
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
b)
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
b)
does not represent actual modulation, it would be
worst case.
YT-1
Infrared Thermometer
User Manual And Technical Instruction
Please read the user manual carefully and follow the instructions
before use. For date of manufacture, please refer to the packing.
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