Viatom DT1 User manual

User’s Manual
Bluetooth Clinical Electrical
Thermometer
Model DT1/DT2

2
1. The Basics
This manual contains the instructions necessary to oper
ate the product safely and in accordance with its functio
n and intended use. Observance of this manual is a pr
erequisite for proper product performance and correct o
peration and ensures patient and operator safety.Profess
ionals, non-professionals, and patients can operate medi
cal device in accordance with the instructions.
1.1 Safety

Get medical attention if you have high fever or
prolonged fever, especially young children. Read
carefully and follow the instructions to ensure accurate
temperature measurement.

Keep out of reach of unsupervised children.
Components may be harmful if swallowed.

This device is designed for oral, rectal, or axillary use
only.

Please note that temperature measuring are affected by
many factors, including strong physical activity before
the test, drinking hot or cold drinks, and measurement
methods.

Avoid taking temperature for 30 minutes after physical
exercise, bathing, dining, or drinking hot or cold
beverages.

Stop using the thermometer if it operates erratically or
if the display malfunctions.

Allow the thermometer to warm naturally to room
temperature before using. Performance may be
affected if operated or stored outside stated
temperature and humidity ranges or if the patient's
temperature is below the ambient (room) temperature.

Please note that the use of this product in high
temperature or humidity may cause inaccurate
temperature measurement results.

Do not boil, bite, bend, drop, or disassemble the

3
thermometer.

Do not share the thermometer with more than one
person without disinfection, or it may cause
cross-infection.

Do not try to sterilize by immersing the thermometer
head in alcohol or hot water (water temperature
exceeds 50°C).

Do not use force to squeeze the product. If the
appearance is damaged, stop using it immediately.

Precision components are used in the construction of
this device. Extremes in temperature, humidity, direct
sunlight, shock or dust should be avoided.

Clean the device with a dry, soft cloth or a cloth
dampened with water and a neutral detergent. Never
use alcohol, benzene, thinner or other harsh chemicals
to clean the device .

Measurements may be distorted if the device is used
close to television, microwave oven, cellular telephone,
X-ray or other devices with strong electrical fields.

Used equipment, parts and battery are not treated as
ordinary household waste, and must be disposed of
according to the applicable local regulations.

Please keep the thermometer close to the skin when
measuring. If it is loose, the temperature measurement
result could be inaccurate.

During the measurement, please avoid strenuous
activity,eating or strong emotional ups and downs, and
use this product in a relatively stable indoor
environment.

When reusing the device, confirm that the device is
clean.

Do not modify the device. It may cause accidents or
damage to the device.

Do not self-diagnose the measurement results and start
treatment by yourself. Always consult your doctor for
evaluation of the results and treatment.

4

Adults are required to shaving the skin before
measuring their temperature. Make sure that the skin
that is in contact with the thermometer is flat and
wrinkle-free.

Do not use the device where flammable gases such as
anesthetic gases are present. It may cause an
explosion.

Please note that the use of this product in high
temperature or humidity may cause inaccurate
temperature measurement results.

The effective wireless transmission distance of this
product in a barrier-free environment is 10 meters. If
the distance exceeds this limit, this product may not
work properly. Please use this product in the effective
wireless transmission distance.

The battery inside this product cannot be replaced.

All the illustrations provided in this manual are for
reference only.

Please refer to the actual product.

When the device is abnormal or damaged, please do
not use the device again, you can contact the manufacturer.

If necessary, to obtain information on the use and
maintenance of the equipment or to report abnormal
conditions, please contact the manufacturer.

5
2. Introduction
2.1 Intended Use
The product is used to measure body temperature in the
home and in the medical sector.
2.2 Contraindications

Those who are allergic to stainless steel or PC plastic
should not use this product.
2.3 Symbols
Symbol
Meaning
Application part type BF
Manufacturer
CE0197 In conformity with Directive 93/42/EEC
European Representative
Symbol for “ENVIRONMENT PROTECTION –
Waste electrical products should not be
disposed of with household waste. Please
recycle where facilities exist. Check with your
local authority or retailer for recycling advice”.
IP22 Against ingress of solid foreign objects
≥12.5mm diameter, Against dripping(15° tilted)
Follow operating instructions

6
2.4 About the product
Product name: Bluetooth Clinical Electrical Thermometer
Software release version：V1
Product model:
Model and Configuration see the table below.
1. On/Off button
On/Off：long press it to achieve this function.
When you want to take your temperature again, shortly
press it to re-measure your temperature.
2. Display screen
It visually displays the temperature measurement results.
3. Indicator light
Green light: it means your body temperature is normal.
Yellow light: it means you have a moderate fever.
Red light: it means you have a ultra high fever.
4. Probe tip
No. Model
Temperat
ure
measure
ment
function
Bluetooth
transmissio
n function
1DT1 √ √
2DT2 √ ×
1
2
3
4

7
It can measure the temperature.
2.5 Screen display information
Temperature
display
Unit/
Measurement

8
3. Using the thermometer
3.1Charge the Battery
Use the USB cable to charge the product. Connect the USB
cable to a USB charger or to the PC. There will be a battery
logo flash on the device when charging.When the battery is
low,the display screen will display a low power prompt.
Note: The device cannot be used during charging.When
charging, you must use a class Ⅱ adapter conforming
to IEC/EN 60601-1, and the output is DC 5V 1A. If it
is not followed, there may be a risk of electric shock.
3.2Before Measurement
1. Please long press the on key to start the product.
2. Display history
The history record appears on the screen,indicating that
the value is the last measured temperature.

9
3.3Measurement
Note:
Before measuring temperature, please clean the temperature
measuring head with or rubbing alcohol. Rinse it with cool water.
The thermometer supports measuring temperature of multiple body
parts.
For the infants under 3 months old, it is recommended to measure
rectal temperature.
Please follow the below instructions.
Measuring oral temperature
1. With your mouth open, put the temperature measuring head
under your tongue.
2. Close your lips gently around the thermometer.
3. Keep the thermometer under your tongue until the digital
thermometer beeps.
Measuring axillary temperature
1. Put the temperature measuring head securely in your armpit.
2. Hold your arm down tightly at your side.
3. Keep the thermometer in your armpit until the digital
thermometer beeps.
Measuring rectal temperature
1. Lubricate the probe tip with a water-soluable jelly for easier
insertion; do not use petroleum jelly,as it may cause an inaccurate
reading. Gently insert the probe tip no more than 1/2 inch into the
rectum.

10
3.4After Measurement
1. When the buzzer emits a beep sound(Beep-short
sound) , it indicates that the temperature measurement
is finished. The display "°C/ ℉ " stops blinking, and the
displayed temperature value is the result of the current
body temperature.
Note:
When the temperature measured by the device is lower than
35 ℃ or 95 ℉ , the screen will display "LOW"with beep-long
sound.
When the temperature measured by the device is higher
than 41 ℃ or 105.8 ℉ , the screen will display "HIGH"with
beep-long sound.
2. Turn off the thermometer: press and hold (> 0.5
seconds) to switch the thermometer off.
3. If no operation is performed for more than 3 minutes,
the thermometer will automatically turn off. It is
recommended to manually turn off the thermometer
after the temperature measurement to extend the
battery life.

11
4. Cleaning and Disinfecting
Do not use corrosive detergent to clean the unit.
Clean and disinfect the thermometer before and after each
use.
Cleaning Process
1. Wipe probe with a cloth dipped in a disinfectant solution
such as 70% isopropyl (rubbing) alcohol or soap and water.
2.Rinse off disinfectant residue.
Care and Storage
•Do NOT drop or crush; this device is not shock proof.
•Do NOT dismantle or modify device.
•Do NOT store the device in an extreme environment with
direct sunlight or high temperatures.
•Store the unit in the protective case while not in use.

12
5. Trouble Shooting
Problem
Possible Cause
Recommended
Action
Can not boot
Very low battery
Please charge it
according to the
instruction
The ambient tem
perature exceeds
40℃or below
5℃.
Please use
within the
working
environment
temperature
range (5
℃
-40
℃
)
The monitor
cannot be
connected to
other devices
Other devices have
Bluetooth turned off
Turn on the
devices
Bluetooth from
the setting menu.
Other devices don’t
support the
Bluetooth 4.0 BLE
Change to a
compatible one.
Inaccurate
measured
value
The temperature
measuring
heads are placed in
different
positions, resulting
in different
readings.
Check whether
the
thermometer is
placed in the
correct
position as
described
in “Using the
thermometer”.
Thermometer
moves while
measuring
temperature.
The measured
position is
not kept closed
while the
temperature
measurement
is being performed.

13
The device has not
been placed for
more than 30
minutes from the
colder environment
to the measuring
environment.
Measurements
should be taken
before they are
left in the
measuring
environment for
more than 30
minutes.
The device has not
been placed for
more than 30
minutes from the
warmer
environment to the
measuring
environment.
Measurements
should be taken
before they are
left in the
measuring
environment for
more than 30
minutes.
The measurement
temperature
exceeds 43.9℃or
below 30℃.
Please use within
the measuring
temperature
range (30℃
43.9℃)
6. Accessories
Model Description
540-00240-00 MICRO USB charge cable

14
7. Specifications
Classifications
EC Directive
MDD, 93/42/EEC
RED, 2014/53/EU
ROHS 2.0, 2011/65/EU
Degree protection
against electrical
shock
Type BF
Environmental
Item Operating Storage
Temperature 5 to 40°C -20 to 50°C
Relative humidity
(noncondensing)
15% to 85% 15% to 85%
Barometric 700 to 1060
hPa 700 to 1060 hPa
Degree of dust &
water resistance
IP22
Physical
Size 160mm×22mm×10mm(main unit)
Weight Less than 30 g (main unit)
Wireless
connectivity
Built-in Bluetooth 5.0 BLE
Expected service
life
5 years
Power Supply
Charge input Micro USB, DC5V
Battery type Rechargeable lithium-polymer
battery
Battery life
Operating:12-14hours for typical
use
Storage:5 years

15
Charge time 2～3 hours.
Temperature measurement
Measurement
method
Direct mode
Measurement site Mouth,Axilla,Rectum
REFERENCE
BODY SITE
Mouth,Axilla,Rectum
Temperature Unit Celsius(℃）or Fahrenheit(℉）
Temperature range 32.0 – 43.9℃（89.6-111.0℉）
Measurement
accuracy
Less than 35.8
℃
, ±0.3
℃
.(Less
than 96.4℉, ±0.5℉.)
35.8℃to less than
37℃,±0.2℃.(96.4℉to less than
98.0℉,±0.3℉.)
37.0℃to 39.0℃, ±0.1℃.(98.0℉to
102.0℉, ±0.2℉.)
Greater than 39.0℃to
41.0℃,±0.2℃.(Greater than
102.0℉to 106.0℉,±00.3℉.)
Greater than
41.0℃,±0.3℃.(Greater than
106.0
℉
,±0.5
℉
.)
Bluetooth RF
Frequency range 2.402 – 2.480 GHz
Max RF power -14 dBm

16
8. Electromagnetic Compatibility
The device meets the requirements of EN 60601-1-2.
Warnings and Cautionary Advices

Using accessories other than those specified in this
manual may result in increased electromagnetic
emission or decreased electromagnetic immunity of the
equipment.

The device or its components should not be used
adjacent to or stacked with other equipment.

The device needs special precautions regarding EMC
and needs to be installed and put into service according
to the EMC information provided below.

Other devices may interfere with this device even
though they meet the requirements of CISPR.

When the inputted signal is below the minimum
amplitude provided in technical specifications,
erroneous measurements could result.

Portable and mobile communication equipment may
affect the performance of this device.

Other devices that have RF transmitter or source may
affect this device (e.g. cell phones, PDAs, and PCs with
wireless function).
Guidance and Declaration - Electromagnetic Emissions
The device is intended for use in the electromagnetic environment specified below.
The customer or the user of the device should assure that it is used in such an
environment.
Emission tests Complianc
e
Electromagnetic environment -
guidance
RF emissions CISPR
11
Group 1 The device uses RF energy only for its
internal function. Therefore, its RF
emissions are very low and are not
likely to cause any interference in
nearby electronic equipment.
RF emissions CISPR
11
Class B The device is suitable for use in all
establishments, including domestic
establishments and those directly
connected to the public low-voltage
Harmonic emissions
IEC61000-3-2
Class A

17
power supply network that supplies
buildings used for domestic purposes.
Voltage Fluctuations /
Flicker Emissions IEC
61000-3-3
Complies

18
Guidance and Declaration - Electromagnetic Immunity
The device is intended for use in the electromagnetic environment specified below.
The customer or the user of the device should assure that it is used in such an
environment.
Immunity test IEC60601 test
level
Compliance
level
Electromagnetic
environment -
guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
± 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/output lines
± 2 kV for
power
supply lines
± 1 kV for
input/output
lines
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
± 1 kV line(s)
to
line(s)
± 2 kV line(s)
to
earth
Voltage dips,
short
Interruptions and
Voltage
variations on
power supply
input lines
IEC 61000-4-11
<5 % UT
(>95 % dip in
UT)
for 0.5 cycle
40 % UT
(60 % dip in UT)
for 5 cycles
70 % UT
(30 % dip in UT)
for 25 cycles
<5 % UT
(>95 % dip in
<5 % UT
(>95 % dip in
UT)
for 0.5 cycle
40 % UT
(60 % dip in
UT)
for 5 cycles
70 % UT
(30 % dip in
UT)
for 25 cycles
Mains power quality
should be that of a
typical commercial or
hospital environment. If
the user of our product
requires continued
operation during power
mains interruptions, it is
recommended that our
product be powered
from an uninterruptible
power supply or a

19
UT)
for 5 s
<5 % UT
(>95 % dip in
UT)
for 5 s
battery.
Power frequency
(50/60 HZ)
magnetic field
IEC 61000-4-8
3 A/m 3 A/m Power frequency
magnetic fields should
be at levels
characteristic of a
typical location in a
typical commercial or
hospital environment.
Note: UTis the AC mains voltage prior to application of the test level.
Guidance and Declaration - Electromagnetic Immunity
The device is intended for use in the specified electromagnetic environment. The
customer or the user of the device should assure that it is used in such an
environment as described below.
Immunity
test
IEC60601
test level
Complia
nce level
Electromagnetic environment -
guidance
Conduced
RF
IEC61000-4
-6
3 Vrms
150 kHz
to
80 MHz
outside
ISM
bands
3 Vrms
150 kHz
to
80 MHz
outside
ISM
bands
Portable and mobile RF
communications equipment should be
used no closer to any part of the
system, including cables, than the
recommended separation distance
calculated from the equation
appropriate for the frequency of the
transmitter. Recommended separation
distances:
Pd 2.1
Radiated
RF
IEC61000-4
-3
3 V/m 80
MHz to
2.5 GHz
3 V/m 80
MHz to
2.5 GHz
Recommended separation distances:
80 MHz～800 MHz: Pd 2.1
800MHz-2.5GHz: Pd 3.2
Where, Pis the maximum output power
rating of the transmitter in watts (W)
according to the transmitter
manufacturer and dis the
recommended separation distance in
meters (m).
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey a, should be

20
less than the compliance level in each
frequency range b.
Interference may occur in the vicinity of
equipment marked with
the following symbol:
Note 1: At 80 MHz to 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.
aField 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 device is used exceeds the applicable RF compliance level
above, the device should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as
re-orienting or relocating the device.
bOver frequency range 150kHz to 80MHz. For Resp field strength should be less
than 1V/m.