Yichang Jiangjing Optoelectronic JT-E020 User manual

Product Manual
IR Forehead Thermometer
Product Model:JT-E020
Yichang Jiangjing Optoelectronic Co., Ltd.
Manufacturer / After-sales service: Yichang Jiangjing Optoelectronic Co., Ltd.
After-sales service Tel: [phone]
Production Address: No.66, Changning Third Road, Maoping Town, Zigui County,
Yichang City, Hubei Province, China

Catalog
1. Description
2. Use safety manual
3. Features
4. Other instructions
5. Precautions before use
6. Product structure
7. LCD display description
8. Product scope and contraindications
9. Technical index
10. Operating instructions
11. Reference temperature
12. Advice
13. Care and maintenance
14. Waste disposal instructions
15. Electromagnetic compatibility warning
16. Symbol Description
17. Product accessories list
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1. Description
This product is a non-contact infrared forehead thermometer
that professionally measures the temperature of the forehead of
the human body. According to the difference of human skin, the
measured temperature will be different; The temperature caused
by different parts of the human body will be different because the
more exposed the human body. The part is more “affected” by the
ambient temperature.
2. Use safety manual
· Please read this manual carefully before use.
· The operating temperature of this product is 10℃～40℃, the
optimal temperature is 25℃.
· Do not use this product in an environment above 40℃or
below 0℃.
· Do not place this product near charged objects to avoid electric
shock.
· Please do not use this product in an environment with relative
humidity greater than 85%.
· Do not place this product too close to the electromagnetic range.
(E.g. radio, mobile phone, etc.).
· Please do not expose this product to the sun, or near the stove, or
contact it with water.
· Do not bump or drop the product, and do not use it if it is damaged.
· Sweat, hair, hat or scarf on forehead can affect the accuracy of the
measurement.
· Make sure the measurement distance is within 5 cm.
· When forehead sweating or other reasons cause the forehead
temperature does not reflect the body temperature normally, please
measure from the earlobe.
· When cleaning is required, wipe the surface of the meter lightly
with alcohol.
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3. Features
· Contact the distributor if there is any problem with the product and
cannot repair the product by yourself.
· It is forbidden to take body temperature measurement when the
ambient temperature changes greatly.
1) Non-contact high-precision temperature measurement
2) Can choice of ℃or ℉
3) Alarm value can be set
4) Buzzer function (can be on or off)
5) LCD display with backlight can be used by users in dark
6) Automatic range selection; resolution is 0.1℃(0.1℉)
7) Can store the latest 20 measurement data
8) Automatic data retention and automatic shutdown.
4. Other instructions
Non-contact infrared forehead thermometer is a professional
thermometer for measuring human forehead. It is widely used in home
use. This product cannot replace the diagnosis of doctors.
7. LCD display description
5. Precautions Before Use
Power On Self Test：Aim at the measured object, press the
measurement switch, the LCD will display all the numbers and
characters of the self-test, and the self-test screen appears.
This screen is displayed for about 1 second.
6. Product Structure
Model: JT-E020
Structural composition: It is mainly composed of infrared probe
assembly, main circuit board assembly, LCD display assembly and
housing assembly.
a. Infrared sensor
b. LCD display
c. Measurement switch
d. Set key
e. Up button
f. Down button
g. Handle
h. Battery cover
a
b
def
c
g
h
Memory
Temperature (℃)
Object temperature
Body temperature
Display the
measured value
Normal temperature
Exceeding threshold
Temperature (℉)
Sound
Battery power
Show which group
of memories
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8. Product scope and contraindications
8.1 The scope of products
The body temperature of the subject is displayed by measuring
the heat radiation from the forehead.
10. Operating instructions
10.1 Battery instructions
At the bottom of the handle, there is an oval with an arrow on
it. Please push the battery cover forward with your hand in the
direction of the arrow.
9.4 Service life
Product lifespan is 3 years.
9.5 Software release version
V1.0
9.6 Work, storage, transportation, and environmental requirements
1) Operating environment:
■ Operating temperature: 10℃～40℃, best 25℃;
■ Relative humility: ≤85%;
■ Atmospheric pressure: 70kPa～1060kPa
■ Power: DC 3V（2 AAA batteries in series)
2) Storage and transportation environment:
■ Storage temperature: -20℃～+55℃;
■ Relative humility: ≤93%;
■ Non-corrosive gas, well-ventilated room.
■ The transportation requirements are stipulated in the order
contract, and the severe impact, vibration and rain and snow
splashing during transportation must be prevented.
9. Technical index
9.1 Basic parameters
8.2 Product contraindications
1) Conditions such as birth defects, congenital malformations,
septic shock, and circulatory failure may severely affect
forehead temperature measurement.
2) Suffering from mental disorders.
3) Suffering from severe heart, liver and kidney diseases.
Show exact bits
Power
Size
Weight
Production date
0.1℃(0.1℉)
DC 3V（2 AAA batteries in series)
149mm*97mm*45mm / 5.8”*38”*1.7”
110g / 0.24lb
See product nameplate for details
9.2 Measuring range
Human body mode temperature range
Measuring distance range
Automatic shut-down
32.0～42.9℃ / 89.6～109.2℉
3-5cm (The best distance is 3 cm)
About 10s
9.3 Measurement accuracy
32℃～34.9℃
35℃～42℃
42.1℃～42.9℃
±0.3℃
±0.2℃
±0.3℃
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Positive and negative pole installation
10.2 Temperature measurement steps
1. Point the thermometer at the center of the forehead(above
the center of the eyebrow) and keep it vertical, about 3-5
cm away. Press the measurement switch and the
temperature will be displayed immediately.
■ Note for battery installation and replacement:
1) After the battery cover is opened, place the battery in the
direction of the positive and negative electrodes at the place
where the batteries are installed. Pay attention to the correct
orientation of the positive and negative electrodes.
2) Wait for 10 minutes to warm up for the first time or immediately
after inserting a new battery.
3) When the battery power is low, the symbol will appear on the
display, prompting to replace the new battery, open the battery
compartment cover (see 6 product structure), pay attention to
the positive and negative polarity when replacing the new
battery. Improper placement may cause damage to the product.
4) Remove the battery when it has not been used for a long time
to prolong its service life and prevent damage due to battery
leakage.
2. When the measurement switch is pressed, the current
measurement temperature value is displayed on the display,
and the measurement data can be automatically stored Note:
1) Before measuring, make sure that there is no hair, sweat, makeup
or hats on it.
2) When forehead sweating or other reasons cause the forehead
temperature does not reflect the body temperature normally, please
measure after aiming at the earlobe, and make sure that there is no
hair, sweat, cosmetics or hat covering.
3) The non-contact infrared forehead thermometer has not been used
for a long
time, the first time the machine is opened for environmental
temperature detection, and the boot time is extended by 1 to 2
seconds.
4) A person's body temperature changes at different times of the day
and is also affected by other external conditions, such as age,
gender, and skin color.
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10.3 function description
10.3.1 The three display states are as follows：
10.3.3 Setup:
Long press the setting key for 3 seconds to enter the setting mode
or exit the current setting mode; In the setting mode, short press the
setting key to select the function option (f1-f2-f3-f4-f5),and press the
"+" / "-" key to modify the parameters.
10.3.4 Measurement temperature unit please select (F1):
In normal measurement mode, press the setting key for more than
3 seconds until the LCD displays F1 option; Press "+" to select Celsius
(℃), press "-" to select Fahrenheit (℉);Short press the setting key to
save the current selection and enter the next option, long press 3
seconds to save the current setting and exit the setting function.
10.3.5 Warning threshold setting (the back-lit displays red color
when the measurement exceeds this threshold):
Press the setting key to select the LCD display as F2; Press the
"+" / "-" key to modify the alarm temperature value (the lowest alarm
is 37 ℃); Short press the setting key to save the current selection and
enter the next option, long press 3 seconds to save the current setting
and exit the setting function.
10.3.2 Check the historical measurement temperature:
Normal
Temperature Exceeding Threshold
Article1 Article 20
Battery
Exhausted
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11. Reference temperature
10.3.6 Buzzer Setup:
Press the setting key to select LCD display as F3; Press "+" to
select buzzer on, press "-" to select buzzer off; Short press the setting
key to save the current selection and enter the next option, long press
3 seconds to save the current setting and exit the setting function.
10.3.8 Object / human body temperature conversion:
Press the setting key to select LCD display as F5; Press the "+"
key to select the object temperature, and press the "-" key to select
the human body temperature;Short press the setting key to save the
current selection and enter the next option, long press 3 seconds to
save the current setting and exit the setting function.
11.1 Normal body temperature range at different measurement
locations.
The human body is a very complex biological comprehensive system.
Body temperature is an important data indicating whether human life
activities are normal. Usually we measure our health by measuring the
temperature of the forehead, cochlea, anus, mouth and armpit. It is
measured in different parts. Body temperature will vary, please refer to
the table below for specific differences:
10.3.7 Error correction settings:
Press the setting key to select LCD display as F4; Press the "+" / "-"
key to set the correction value (range - 3.0 ℃- + 3.0℃; for example,
the measured result of the human body in a special environment is
35.9 ℃, while the actual temperature is 36.6℃. In this state, the
temperature value can be adjusted to the correct 36.6 ℃via the value
set by "F4", to obtained the correct temperature value.) ; Short press
the setting key to save the current selection and enter the next option,
long press 3 seconds to save the current setting and exit the setting
function.
After
change
Press +
Default value Correction value
Press - Press + Press -
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12. Advice
13. Care and Maintenance
13.1 Product care and cleaning
1) The probe part is the most precise part of the product and must be
carefully protected.
2) Do not use abrasive cleaners to clean the product.
3) Never immerse the product in water or other liquids.
4) Keep this product in a dry place to avoid dust, pollution and direct
sunlight.
5) Please clean the non-contact electronic thermometer regularly,
usually once a month. If necessary, you can clean it properly
according to the actual soiling of the product. Use a dry soft cloth to
clean the non-contact electronic thermometer. If the instrument is
extremely dirty, use a cotton cloth or cotton swab with an alcohol
content of 70% to clean and disinfect the case and sensor head
(the infrared detector cannot be wiped). Be careful not to allow liquid
to penetrate the inside of the thermometer.
13.2 Product Maintenance
If you encounter the following problems during use, please follow the
instructions in the maintenance instructions to find a solution. If the
problem persists, please contact our customer service.
If it is lower than 32℃ or higher than 42.9℃in the body measurement
state, the LCD will not display data, and display "Lo" or "Hi".
1) LCD cannot display the value
Use non-contact electronic body temperature timer, LCD display
message "HI", indicating that it has exceeded the measurement range
or the temperature is higher than 42.9℃in human temperature
measurement mode.
2) LCD display message "Hi"
Using a non-contact electronic body temperature timer, the LCD displays
the message "Lo", indicating that the measurement temperature is lower
than the measurement range or the temperature is lower than 32°C in
the human body temperature measurement mode.
3) LCD display message "Lo"
11.2 Normal body temperature range at different ages
A person's body temperature changes at different times of the day,
and is also affected by other external conditions, such as age, gender,
skin color, fatness, etc. For the normal temperature range of different
age groups, please refer to the table below:
Note:
Women's body temperature is different from men's, generally about
0.3 ℃higher than men's, body temperature during ovulation will rise
0.3 ℃-0.5 ℃than usual.
· The protective glass outside the LCD frame is very important, and
it is also the fragile part of the instrument. Please use it carefully.
· Do not charge non-rechargeable batteries and do not throw them
into fire.
· Do not expose the product to the sun, and do not touch the water.
Measurement Parts
Anus
Oral cavity
Armpit
Ear
Forehead
Normal temperature(℃)
36.6~38
35.5~37.5
34.7~37.3
35.8~38
36~37.2
Normal Fahrenheit(℉)
97.8~100.4
95.9~99.5
94.4~99.1
96.4~100.4
97.4~98.4
Age
0~2 years
3~10 years
11~65 years
>65 years
Normal temperature(℃)
36.4~38.0
36.1~37.8
35.9~37.3
35.8~37.5
Normal Fahrenheit(℉)
97.5~100.4
97.0~100.0
96.6~99.1
96.4~99.5
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14. Waste disposal instructions
15. Electromagnetic compatibility warning
16. Symbol Description
17. Product accessories list
The information "Lo" or "Hi" appears in the following situations
for reference:
■ Disposing electronic products and batteries directly in the trash
can cause harm to the environment. Please dispose of them in
accordance with the laws in your area.
■ Do not discard the non-contact electronic thermometer at the
end of its use. Please dispose of it according to the laws in your
area, or contact the manufacturer for recycling.
■ The non-contact electronic thermometer meets the requirements
of IEC60601-1-2:2004 standard electromagnetic compatibility.
■ The user should install and use the electromagnetic compatibility
information provided in the random files.
■ Portable and mobile RF communication equipment may affect
the performance of non-contact electronic thermometers, and
avoid strong electromagnetic interference when using, such as
near mobile phones, microwave ovens, etc.
■ Guidelines and manufacturer's declarations are detailed in the
attachment.
■ The equipment or system should not be used close to or stacked
with other equipment. If it must be used close to or stacked, it
should be observed to verify that it can operate normally in the
configuration in which it is used.
1 thermometer, 1 manual, 1 certificate, 1 pair of 7 battery.
Reasons for "Lo" or "Hi" Advice
Temperature value is affected
by hair and sweat.
Ensure no obstructions during
temperature measuremen.
Temperature is affected by
changes in airflow.
Ensure that the air remains stable
during temperature measurements.
The measurement distance
is too far.
Please note that the measurement
distance should not be greater than 5 cm.
Enter indoors from low or
high temperature outdoors.
Please wait for 10 minutes and wait for
the subject's temperature to adapt to
the measurement environment before
measuring.
Symbol Graphics Meaning
Note, refer to the
attached file Refer to manual
BF type
application part
Low voltage alert
Trash can
MeaningSymbol Graphics
Note:
Warning:
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EMC Declaration
Electrostatic
discharge (ESD)
IEC61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood,
concrete or ceramic tile.
If floors are covered with
synthetic material, the
relative humidity should
be at least 30 %.
Electrical fast
transient/ burst
IEC 61000-4-4
±2 kV for
power supply
lines ±1 kV
for input
Not Applicable
Mains power quality
should be that of a
typical commercial or
hospital environment.
Surge
IEC 61000-4-5
±1 kV line
(s) to line(s)
±2 kV line(s)
to earth
Not Applicable
Mains power quality
should be that of a
typical commercial or
hospital environment.
Voltage dips,
short
interruptions
and voltage
variations on
power supply
input lines IEC
61000-4-11
Power
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
3 A/m 3 A/m
<5% UT(>95%
dip in UT) for
0,5 cycle40%
UT(60% dip in
UT) for 5 cycles
70% UT(30%
dip in UT) for
25 cycles<5%
UT(>95% dip
in UT) for 5 sec
Not Applicable
Mains power quality
should be that of a typical
commercial or hospital
environment. If the user
of the “JT-E020” requires
continued operation
during power mains
interruptions, it is
recommended that the
“JT-E020” be powered
from an uninterruptible
power supply or a battery.
Guidance and manufacturer’s declaration – electromagnetic immunity
NOTE UT is the a.c. mains voltage prior to application of the test level.
The “JT-E020” is intended for use in the electromagnetic environment
specified below. The customer or the user of the “JT-E020” should ensure
that it is used in such an environment.
Immunity
test
IEC 60601
test level
Compliance
level
Electromagnetic
environment – guidance
Portable and mobile RF
communications equipment
should be used no closer to
any part of the “JT-E020”,
including cables, than the
recommended separation
distance calculated from the
equation applicable to the
frequency of the transmitter.
Recommended separation
distance
Conducted RF
IEC 61000-4-6
d=[ 3.5 ]√P V1
d=[ 3.5 ]√P 80MHz to
800MHz E1
d=[ 7 ]√P 800MHz to
2.5 GHz E1
3 Vrms150 kHz
to 80 MHz Not Applicable
Radiated RF
IEC 61000-4-3
where P is the maximum
output power rating of the
transmitter in watts (W)
according to the transmitter
manufacturer and d is the
recommended separation
distance in meters (m).Field
strengths from fixed RF
transmitters, as determined
by an electromagnetic site
survey, a should be less
than the compliance level in
each frequency range.b
Interference may occur in
the vicinity of equipment
marked with the following
symbol
3 V/m80 MHz
to 2.5 GHz 3 V/m
Guidance and manufacturer’s declaration – electromagnetic immunity
The “JT-E020” is intended for use in the electromagnetic environment
specified below. The customer or the user of the “JT-E020” should ensure
that it is used in such an environment.
Immunity
test
IEC 60601
test level
Compliance
level
Electromagnetic
environment – guidance
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尺寸:100*70mm
材质:105G铜版纸/黑白印刷
骑马钉装订。
Rated maximum output
power of transmitter W
0.01
0.1
1
10
100
/
/
/
/
/
0.12
0.38
1.2
3.8
12
0.23
0.73
2.3
7.3
23
Separation distance according to frequency of
transmitter M
150 kHz to
80 MHz
80 MHz to
800 MHz
800 MHz to
2,5 GHz
Recommended separation distances between portable and mobile RF
communications equipment and the JT-E020
The “JT-E020” is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the JT-E020
can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and
the “JT-E020” as recommended below, according to the maximum output power
of the communications equipment.
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 “JT-E020”
is used exceeds the applicable RF compliance level above,
the JT-E020 should be observed to verify normal
operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating
the “JT-E020”.
bOver the frequency range 150 kHz to 80 MHz, field strengths
should be less than 3 V/m.
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.
For transmitters rated at a maximum output power not listed above, the
recommended separation distance d in meters (m) can be estimated using the
equation applicable to the frequency of the transmitter, where P is the maximum
output power rating of the transmitter in watts (W) according to the transmitter
manufacturer. NOTE 1 At 80 MHz and 800 MHz, the separation distance for 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.
Product technical requirement number:
Use period: 3 years
Manual version: V1.0
Manual preparation date: February 25, 2020
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