Biotech LTH-1 User manual

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Non-contact Infrared Thermometer
LTH-1
User Manual
Guangzhou Labsim Biotech Co., Ltd

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CONTENT
1. Product Introduction ........................................................................................................................................... 3
1.1. Product description .................................................................................................................................. 3
1.2. Intended Use ............................................................................................................................................ 3
1.3. Composition and Structure ...................................................................................................................... 3
1.4. Working Principle .................................................................................................................................... 4
1.5. Range of Application ............................................................................................................................... 4
1.6. Contraindications ..................................................................................................................................... 4
2. Technical parameters and conditions of use ....................................................................................................... 4
2.1. Technical parameters ............................................................................................................................... 4
2.2. Working,transportation and storage environment ................................................................................... 5
3. Installation and usage ..........................................................................................................................................5
3.1Install the battery ........................................................................................................................................5
3.2How to replace the battery .........................................................................................................................6
3.3Measurement unit setting ...........................................................................................................................6
4.Operation method .................................................................................................................................................6
4.1Measuring body temperature ..................................................................................................................... 6
4.2Memory function ....................................................................................................................................... 7
4.3 Shutdown .................................................................................................................................................. 7
5.Product symbol description ................................................................................................................................. 8
6. For technical data, please contact ....................................................................................................................... 9
7.Maintenance ......................................................................................................................................................... 9
8. Common Faults and Solution ........................................................................................................................... 10
9.Warning, Precautions and Limitations ...............................................................................................................11
10.EMC Declaration ............................................................................................................................................. 13
11.Warranty ........................................................................................................................................................... 16
12.Packing List ......................................................................................................................................................16
13.warranty card ....................................................................................................................................................17
14.Contact information ......................................................................................................................................... 18

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1. Product Introduction
1.1. Product description
This product is a thermometer that uses infrared technology to measure human body
temperature. It can measure human body temperature by just pointing the product at the human
forehead, pressing the measurement button. The body temperature will be displayed on screen
within 1 seconds. It is simple and fast.
1.2. Intended Use
This product is used for measuring heat radiation from the human forehead,it can show the
body temperature of human.The product can be reused.
1.3. Composition and Structure
1.1.1. Non-contact infrared thermometer mainly consists of infrared sensor, distance sensor,
control circuit board, display screen, operation buttons, plastic shell, probe protection cover
(may not include). The schematic diagram of its structure is shown in Figure 1, and the
full-screen display is shown in Figure 2.
1) Structure
Figure 1
Display area
Memory button
Temperature probe
Start measurement button
Distance Measurement Probe
battery cover

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2) LCD screen
Figure2
Note: The appearance of instruments and accessories are subject to the physical product.
1.4. Working Principle
By radiating infrared energy to the human body, accurately measure human body's
temperature.
1.5. Range of Application
This product is suitable for people including babies, children and adults.
1.6. Contraindications
No.
2. Technical parameters and conditions of use
2.1. Technical parameters
Power supply: DC 3V (-10%, +5%)
Measurement range: 32.0℃～43.0℃
Display resolution: 0.1℃
Measurement accuracy:
Within 35.0℃～42.0℃±0.2℃
±0.3℃ within the range of 32℃～34.9℃ and 42.1℃～43.0℃
Shock protection: internal power supply equipment
Application part: BF type applied part
Operating mode: continuous operation
Temperature unit: Celsius ℃/Fahrenheit℉
Measure position
Results
Distance Unit
Temperature Unit
Battery Prompt
Results Record

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Protection of liquid intake: IP20 (it can prevent solid foreign objects with a diameter over or
equal to 12.5mm from entering, without protection against ingress)
Safety classification: equipment that cannot be used in the presence of flammable anesthetic
gas mixed with air or flammable anesthetic gas mixed with oxygen or nitrous oxide
Product size: 148*38*45 (mm)
Product weight: about 90g (excluding battery)
Memory: 15 groups of results
2.2. Working,transportation and storage environment
working environment：
Temperature: 15℃ to 40℃
Humidity: 15% to 90% RH
Atmospheric pressure: 70kPa～106 kPa
Transportation and storage environment：
Temperature: -25℃ to +70℃
Humidity: ≤90% RH
Atmospheric pressure: 70kPa～106 kPa
3. Installation and usage
3.1Install the battery
This machine comes with 2 pieces of AAA batteries. Push the battery cover down and
insert the battery into the battery compartment. At this time, the product starts the self-test. A
full-screen display, backlight, and prompt sound indicate that the self-test passed and entered the
standby state. Pay attention to the positive and negative indications in the battery compartment
and close the battery cover. As shown in Figure 3,

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Figure 3
3.2How to replace the battery
If the screen only displays the“ ”, it prompts to replace the battery. When “ ” is
displayed, it will not turn on after the automatic shutdown, please replace the battery. Insert two
new AAA (No. 7) batteries. Please pay attention to the positive and negative directions and
install the battery cover. The boot screen will be normal and the battery replacement is complete.
If there is no response, please check the positive and negative direction of the battery and the
power.
Note: The battery with the machine is a test battery, please use new batteries when the
testing institution tests.
3.3Measurement unit setting
In the shutdown state, long press the memory key “ ”for 2-3 seconds to enter the
temperature unit conversion state, then short press the memory key “ ” to select "℃" and
"℉" temperature units, then press the power-on measurement key “ ”to exit and
automatically shut down .
4.Operation method
4.1Measuring body temperature
In the power off state, press the power button “ ”to power on.
Put the probe at the position between the eyebrows, within a distance of about 3 cm (do not
touch the forehead directly).

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Press the switch measurement key “ ”, the medical infrared thermometer has a "di"
sound prompt and displays the measurement result.
4.2Memory function
1. Memory function: Press the “ ” key to check the memory values. The medical infrared
thermometer stores 15 groups of readings. When the specified quantity of groups is exceeded,
the latest memory value will overwrite the earliest memory value.
2. In the memory mode, long press“ ” to display the CLr on the screen to clear the memory
value.
Note：
1When the measurement distance is over 3 cm, the screen displays "0-3", please
approach forehead to measure, as shown in Figure 4
Figure 4
2When the measurement distance is less than about 3 cm, it will automatically measure,
with a "di" sound, and display the measurement result
3When the body temperature exceeds 37.5℃, the screen will be displayed in orange,
and at the same time, the machine will have three rapid alarm sounds“di-di-di”.
4When the measured value exceeds the measuring range (32℃～43℃), the screen will
display in orange and white toggle 3 times, at the same time, the thermometer will appear three
consecutive rapid alarm sounds“di-di-di”, please confirm the measurement method and the
external environment is normal.
4.3 Shutdown
1Long press the start measurement key “ ” for 2-3 seconds to shut down.
2Without any operation, it will shut down automatically in about 1min.

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5.Product symbol description
Table 2.Product symbol description
Symbol
Description
Symbol
Description
Type BF applied part
Caution
Recycle
Up
Handle with care
Time
limit for environmental
concerning
DISPOSAL: Do not dispose
this product as unsorted
municipal waste. Collection
of such waste separately for
specia treatment is
necessary.
Keep dry
Manufacture
Authorized representative
in the European
Community
Serial Number
Follow Instruction for use
CE marked product
Date of Manufacture
Medical device

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6. For technical data, please contact
CMC Medical Devices & Drugs S.L.
Add :C/ Horacio Lengo No.18, CP 29006, Málaga, Spain
7.Maintenance
Since the product is a reusable instrument, please clean and disinfect it after use.
If the product is dirty, please keep the sensor and probe cavity clean, otherwise it will affect
the measurement accuracy.
Clean the cavity of the sensor and the probe: gently wipe the cavity or the mirror surface of
the sensor with a clean soft cloth or cotton swab.
Disinfect the product and its head: Use a cotton swab dipped in a little medical alcohol
(75%) to gently wipe the surface of the product and the measured head. Use it after the alcohol
has evaporated.
Precautions for storage
This product should be stored in a dust-free and dry place. Please avoid direct sunlight; do
not store it in a place with high temperature, humidity, dust and corrosive gas.
This product is a high-precision product, please do not drop the device! Avoid violent
impacts and bumps and other possible behaviors that are not conducive to transportation.
If there are signs of damage to the sensor head or the product itself, please do not continue
to use it.
When using this product, do not exceed its range of use. When using it on children, please
observe the general safety precautions.

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8. Common Faults and Solution
Fault phenomenon
Reason analysis
Solution
screen display
“ ”
The measuring temperature is lower
than 32℃, which exceeds the
measuring range of the machine
Please re-measure according to
the instruction
screen display
“ ”
The measuring temperature is lower
than 43℃, which exceeds the
measuring range of the machine
Please re-measure according to
the instruction
screen display
“ ”
The ambient temperature is too low
or too high
Please measure at 16℃～35℃
ambient temperature
screen display
“ ”
Low battery
Please replace the battery
No display or
abnormal display
The battery is reversed or the
machine is abnormal
Reinstall the battery, or contact
your dealer

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9.Warning, Precautions and Limitations
1. The measurement results are for reference only, and cannot replace the doctor's diagnosis.
Self-judgment and treatment of the measurement results is very dangerous. Please follow the
doctor's guidance.
2. Please put the battery out of the reach of children, otherwise it is easy to be dangerous.
3. When this product is not used for a long time (more than 3 months), please remove the battery
from the compartment to prevent battery leakage.
4. It is forbidden to immerse the medical infrared thermometer in any liquid, and it is forbidden
to use it under the environment of high or low temperature for a long time. It is forbidden to
collide, drop or mix with sharp objects.
5. Do not put the battery close to the fire source or throw it into the fire to avoid battery
explosion. Do not use when the battery is leaking or moldy; when discarding the battery or this
product, you must comply with local regulations to avoid contamination.
6. This product contains sensitive electronic components. Avoid using it directly in the
environment with strong electromagnetic interference (such as near mobile phones, microwave
ovens, etc.) to prevent temporary impact on its accuracy.
7. Before use, please read this instruction manual carefully to confirm that the battery is
installed.
8. Do not disassemble, repair or modify this product, otherwise it may cause errors in the
measurement results or cause machine failure.
9. This product is not waterproof. Use it with care to prevent liquid from entering the product.
When this product gets wet due to contact with steam, please wait until it becomes dry or wipe
gently with a soft dry cloth or cotton ball, otherwise it will cause measurement error.
10. If there is a temperature difference between the machine storage and the measurement
environment, put the machine in the use environment and let it stand for more than 30 minutes,
otherwise the measurement results may have errors.
11. When the sensor lens is dirty, please wipe it with a soft dry cloth or cotton swab, and do not
wipe it with other objects, otherwise it may cause the mirror surface of the sensor to be scratched
or the machine malfunction.
12. Do not try to measure when the machine is wet, it may cause inaccurate measurement results.
13. Before the measurement, please make sure that the forehead of the tested person is free of
sweat, cosmetics, oil stains, etc.
14. Before the measurement, please make sure that the testee has not taken a bath, exercised or
dine within 30 minutes, and measured when the body is in a stable state.

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15. Before use, please keep the sensor and probe cavity clean.
16. When measuring, do not face the sun, air outlet of the air conditioner or heater, which will
change the temperature. Please try to measure in a stable environment.
17. Under the conditions of storage regulations, the life of the product is 5 years (except for
vulnerable and consumable parts).

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10.EMC Declaration
10.1Instructions for use
The ME EQUIPMENT is suitable for home and healthcare environments
Warning：Don’t near active HF surgical equipment and the RF shielded room of an ME system
for magnetic resonance imaging, where the intensity of EM disturbances is high.
Warning：Use of this equipment adjacent to or stacked with other equipment should be avoided
because it could result in improper operation. If such use is necessary, this equipment and the
other equipment should be observed to verify that they are operating normally.
Warning: Use of accessories, transducers and cables other than those specified or provided by
the manufacturer of this equipment could result in increased electromagnetic emissions or
decreased electromagnetic immunity of this equipment and result in improper operation.”
Warning： 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
equipment, including cables specified by the manufacturer. Otherwise, degradation of the
performance of this equipment could result.
10.2Technical description
Guidance and manufacturer’s declaration -electromagnetic emissions and Immunity
Table 1:
Guidance and manufacturer’s declaration - electromagnetic emissions
Emissions test
Compliance
RF emissions
CISPR 11
Group 1
RF emissions
CISPR 11
Class B
Harmonic emissions
IEC 61000-3-2
Not applicable
Voltage fluctuations/ flicker emissions
IEC 61000-3-3
Not applicable

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Table 2:
Guidance and manufacturer’s declaration - electromagnetic Immunity
Immunity Test
IEC 60601-1-2
Test level
Compliance level
Electrostatic discharge (ESD)
IEC 61000-4-2
±8 kV contact
±2 kV, ±4 kV, ±8 kV, ±15 kV
air
±8 kV contact
±2 kV, ±4 kV, ±8 kV, ±15 kV air
Electrical fast transient/burst
IEC 61000-4-4
Not applicable
Not applicable
Surge
IEC 61000-4-5
Not applicable
Not applicable
Voltage dips, short interruptions and
voltage variations on power supply
input lines
IEC 61000-4-11
Not applicable
Not applicable
Power frequency magnetic field
IEC 61000-4-8
30 A/m
50Hz/60Hz
30 A/m
50Hz/60Hz
Conducted RF
IEC61000-4-6
Not applicable
Not applicable
Radiated RF
IEC61000-4-3
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
NOTE UT is the a.c. mians voltage prior to application of the test level.

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Table 3:
Guidance and manufacturer’s declaration - electromagnetic Immunity
Radiated RF
IEC61000-4-3
(Test specifications
for ENCLOSURE
PORT IMMUNITY
to RF wireless
communications
equipment)
Test
Frequency
(MHz)
Band
(MHz)
Service
Modulation
Modulation
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
385
380
–390
TETRA 400
Pulse
modulation
18 Hz
1,8
0.3
27
450
430
–470
GMRS 460,
FRS 460
FM ± 5 kHz
deviation
1 kHz sine
2
0.3
28
710
704 –
787
LTE Band
13,
17
Pulse
modulation
217 Hz
0,2
0.3
9
745
780
810
800–96
0
GSM
800/900,
TETRA
800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse
modulation
18 Hz
2
0.3
28
870
930
1720
1700 –
1990
GSM 1800;
CDMA
1900;
GSM 1900;
DECT;
LTE Band 1,
3,
4, 25;
UMTS
Pulse
modulation
217 Hz
2
0.3
28
1845
1970
2450
2400 –
2570
Bluetooth,
WLAN,
802.11
b/g/n,
RFID 2450,
LTE Band 7
Pulse
modulation
217 Hz
2
0.3
28
5240
5 100 –
5 800
WLAN
802.11
a/n
Pulse
modulation
217 Hz
0,2
0.3
9
5500
5785

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11.Warranty
As long as the instrument is clean, no special maintenance is generally required. If you need
service or repair, please call after-sales service.
1. This product provides one-year free maintenance service. If you need to provide circuit
diagrams, necessary materials and electrical circuit troubleshooting during warranty service,
please contact the manufacturer.
2. For the failure caused by the following users' personal reasons, free warranty service will not
be provided:
1) Failure caused by unauthorized disassembly and modification.
2) Failure caused by accidental drop of the product.
3) Failure caused by not operating according to the instructions.
4) Failure caused by lack of reasonable maintenance.
5) Damage caused by external force.
3. Repair services outside the warranty will be charged according to regulations.
12.Packing List
Host: 1 set
Battery: 2 pieces of No. 7 alkaline battery
Manual: 1
Qualified Certificate: 1 piece

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13.warranty card
warranty card
Model
Serial No.
Purchase date
username
contact number
Seal of sales
point
Maintenance
records
matter
Repairer
Remarks
Please show this card for repair！

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14.Contact information
Manufacturer: Guangzhou Labsim Biotech Co., Ltd
Room 425-433, Building H6, No. 39 Ruihe Road, Huangpu District, 510700 Guangzhou City,
Guangdong Province, PEOPLE'S REPUBLIC OF CHINA.
Tel：[phone]
Fax：[phone]
After-Sales Service Tel:[phone]
zip code：510700
E-mail：[email protected]
Website: www.labsim.cn
CMC Medical Devices & Drugs S.L.
Add :C/ Horacio Lengo No.18, CP 29006, Málaga, Spain
Telephone: [phone]
Email :[email protected]
( version number: A/1 Date of edit: April 15th, 2022)