CDN THD2FE User manual

NON-CONTACT FOREHEAD
THERMOMETER
Forehead mode: 93.2 to 108°F/34 to 42.2°C
Surface mode: -7.6 to +176°F/-22 to +80°C
Model THD2FE

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Note: In the following instructions, names of the
control buttons are shown in CAPS. Function
information that appears on the display is shown in
BOLD CAPS.
USAGE
Indications for Use
The Non-Contact Forehead Thermometer is an
infrared thermometer intended for the intermittent
measurement of human body temperature in people
of all ages.
Intended Operator:
At least 11 years old (5 years intensive reading
experience), no maximum.
Ambient Temperature
If there is any temperature difference between the
places where the device is stored and where it will
be used, allow the thermometer to adjust to the
room temperature where the subject is for at least
15 minutes before measurement.
Points of Attention
1. Forehead temperature is displayed in oral mode.
This mode converts the forehead temperature to
display its “oral-equivalent” value.
2. Before the measurement, the subject should stay
in a stable environment for 5 minutes and avoid
exercise or bath for 30 minutes.
3. Keep the forehead area clean and free from sweat,
cosmetics and scars while taking the temperature.
4. The “Clinical Bias” is -2.5 to -3.1°F (-1.4 to -1.7°C).
5. The “Limits of Agreement” is 0.98.
6. The “Repeatability” is 0.36°F (0.20°C)

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BEFORE WE BEGIN
This thermometer has been designed for home
use. It is not meant to replace a visit to the doctor.
Compare the measurement result to your regular
body temperature. Consult with doctor if you have
health concerns.
BATTERY INSTALLATION
Replace battery when the Low Battery icon ( )
indicates the battery is low. Power off the unit before
installing the batteries. A malfunction may occur if
the power is on when the battery is installed. If a
malfunction occurs, restart the device.
1. Remove battery cover by using
the thumbs to push battery cover
out.
2. Install two 1.5V AAA batteries
observing polarity shown in
compartment.
3. Replace the battery cover until it
clicks shut.

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OPERATING INSTRUCTIONS
A. On/Off
1. Press the POWER button ( ) to turn the
thermometer on.
2. Forehead is the default mode. The Forehead
icon ( ) appears on the display and two beeps
sound when ready.
3. Press the POWER button ( ) for 5 seconds to
turn the thermometer off.
4. The THD2FE will automatically turn off after
1 minute of inactivity.
B. Temperature Scale
Note: When the temperature scale is changed, the memory is cleared.
To select temperature reading in Fahrenheit or
Celsius:
1. Power off the unit.
2. Press and hold the START button, then press
and hold the POWER button for 3 seconds.
3. The °F symbol changes to the °C symbol on
the display or vice versa.
C. LCD Backlight
The backlight will turn on automatically for
5 seconds when a reading is taken.

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D. Forehead Mode
Forehead is the default mode of the THD2FE.
1. Make sure that the sensor lens is clean and
undamaged and that the forehead is clean.
2. Hold the sensor lens 1.5 inches (4 cm) or less
from the center of the forehead and press
the START button to get the temperature
measurement.
3. Wait for the Forehead icon ( ) to stop ashing
before taking the next measurement.
a. Temperature Alert
If the thermometer detects a temperature
≥99.5°F (37.5°C), three short beeps sound
followed by one long beep.
b. Silent
i. When the THD2FE is on, press and hold
the POWER button for 3 seconds.
ii. The silent icon ( ) ashes on the display.
iii. Release the POWER button to silence the
alert.
iv. Repeat to turn the alert on again.
Note: If the POWER button is pressed for 5 seconds after
the silent icon has begun ashing, the device will power off
without setting the alert to silent.
c. Memory
Recall up to 25 readings.
Note: As the memory gets full, the newer readings will replace
the older readings.
i. When the THD2FE is on, press the
POWER
( ) button to see the temperature records
in memory.
ii. The memory icon ( ) appears on the

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display.
iii. Press the Power button again to cycle
through all of the previous readings
starting with the most recent.
E. Surface Mode
Note: The surface mode shows the actual and unadjusted surface
temperature which is different from the body temperature. It can
help you monitor if the object temperature is suitable for the baby or
patient, for example the baby’s milk.
1 Turn the thermometer on
2. Press and hold the POWER button and press
the START button once to enter Surface mode.
3. The surface icon ( ) appears on the display.
4. Aim the sensor lens at the target and press
the START button to display the surface
temperature.
5. Press and hold the START button to get
continuous measurements.
Note: Applications include temperature measurements for water,
milk, cloth, skin or other objects.
Note: This mode shows the actual and unadjusted surface
temperature which is different from the body temperature.
Important: HAND WASH AND DRY. DO NOT IMMERSE IN
LIQUID.

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F. Trouble Shooting
Error Message Problem Solution
Error 5-9, the system is not
functioning properly.
Unload the battery, wait for 1
minute and repower it. If the
message reappears, contact
CDN for further assistance.
Measurement before device
stabilization.
Wait for “Er1” to disappear.
The ambient temperature is not
within the range between 50 to
104°F (10 to 40°C).
Allow the thermometer to rest in
a room for at least 15 minutes at
room temperature: 50 to 104°F
(10 to 40°C).
Forehead mode: Temperature
taken is higher than 108°F
(+42.2°C)
Surface mode: Temperature
taken is higher than 176°F
(+80°C) Select the target within
specications. If a malfunction
still exists, contact CDN for
further assistance.
Forehead mode: Temperature
taken is lower than 93.2°F
(+34°C)
Surface mode: Temperature
taken is lower than -7.6°F
(-22°C)
Device cannot be powered on to
the ready stage.
Replace batteries with new
batteries.

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E. Battery Status
The thermometer incorporates visual battery
status indication:
1. Battery OK: measurements are possible
2. Battery Low: replace battery with two 1.5V
AAA alkaline cells; measurements are possible
3. Battery Exhausted: replace battery;
measurements are not possible
CARE OF YOUR PRODUCT
• The sensor lens is the most delicate part of the
thermometer and should be kept clean at all times.
Take care when cleaning the lens. Use only a
soft cloth or cotton swab with water or rubbing
alcohol. Allow the lens to dry fully for at least
1 minute before using the thermometer.
• Do not submerge any part of the thermometer in
liquids. Keep it dry and away from any liquids and
direct sunlight. Wipe clean with a damp cloth.
• Store the thermometer at room temperature
between -4 to +122°F/–20 to +50°C, RH ≤85%.
• Avoid holding the thermometer too long. This
could cause the body temperature measurement
to be lower than usual.

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PRECAUTIONS
• Dispose of used batteries promptly and keep away
from children.
• Keep the thermometer and batteries away from
children.
• Do not clean the case with abrasive or corrosive
compound, which may scratch the plastic and
corrode the electronic circuits.
• Do not subject the unit to excessive force shock,
dust, temperature or humidity, which may result in
malfunction, shorter electronic life span, damaged
battery and distorted parts.
• Do not tamper with the unit’s internal components.
Doing so will invalidate the warranty on the unit
and may cause unnecessary battery damage and
distorted parts.
• Do not subject the unit to excessive exposure to
direct sunlight. The unit is not waterproof — do
not immerse it into water or expose to heavy rain.
• To avoid deformation, do not place the unit in
extreme temperatures.
• Do not use the thermometer in a microwave oven.
• Always read the user manual thoroughly
before operating.

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SPECIFICATIONS
Measurement Range Forehead mode: 93.2 to 108°F/34 to 42.2°C;
Surface mode: -7.6 to +176°F/-22 to +80°C
Unit of Measure °F/°C
Resolution 0.1°F/0.1°C
Water Resilience IP22: protected from solids bigger than
12.5 mm (e.g. ngers); dripping water when
enclosure tilted up to 15°
Accuracy
Forehead mode: 95 to 107.6°F/35 to 42°C:
±0.4°F/0.2°C, otherwise ±0.5°F/0.3°C;
Surface mode: 71.6 to 108°F/22 to 42.2°C:
±0.5°F/0.3°C, otherwise ±4% or ±4°F/2°C
whichever is greater
Measurement Distance Within 1.5 in/4 cm
Distance:Spot Surface mode: 1:1
Emissivity Surface mode: 0.95
Operating Range 50 to 104°F/10 to 40°C, 15% to 85% RH
Storage Range -4 to +122°F/-20 to 50°C, RH ≤85%
Power Supply Two AAA 1.5V IEC LR03 alkaline batteries,
included
Product Dimensions 1.89 W x 6.22 H x 1.58 D (in)/
4.8 W x 15.8 H x 4.02 D (cm)
Weight 3.5 oz / 100 g (including battery)

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SYMBOL DESCRIPTIONS
The CE mark and Notied Body Registration
Numbers, the requirement of Annex II from
Medical Device Directive 93/42/EEC are met
Caution
BF type applied part
IP22 Classication for water ingress and
particulate matter
Indicates this device is subject to the
Waste Electrical and Electronic Equipment
Directive in the European Union. To protect
the environment, dispose of useless device
at appropriate collection sites according to
national or local regulations.
Please read the instructions for use
Power, standby
Paper recycling

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MANUFACTURER’S DECLARATION
ELECTROMAGNETIC EMISSIONS
The THD2FE is intended for use in the electromagnetic environment (for
home healthcare) specied below. The customer or the user of the THD2FE
should assure that it is used in such an environment.
Emissions Test Compliance
Electromagnetic Environment – Guidance
(for home healthcare environment)
RF emissions
CISPR 11 Group 1
The THD2FE 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 THD2FE is suitable for use in all establishments,
including domestic establishments and those directly
connected to the public low-voltage power supply
network that supplies buildings used for domestic
purposes.
MANUFACTURER’S DECLARATION
ELECTROMAGNETIC IMMUNITY
The THD2FE is intended for use in the electromagnetic environment (for
home healthcare) specied below. The customer or the user of the THD2FE
should assure that it is used in such an environment.
Immunity Test IEC 60601 Test Level Compliance Level
Electromagnetic
Environment –
Guidance
(for home healthcare
environment)
Electrostatic
discharge (ESD)
IEC 61000-4-2
Contact:±8 kV
Air±2 kV,±4 kV,±8
kV,±15 kV
Contact:±8 kV
Air±2 kV,±4 kV,±8
kV,±15 Kv
Floors should be wood,
concrete or ceramic
tile. If oors are
covered with synthetic
material, the relative
humidity should be at
least 30%.
Power frequency
(50, 60 Hz)
magnetic eld
IEC 61000-4-8
30 A/m
50 Hz or 60 Hz
30 A/m
50 Hz and 60 Hz
The THD2FE power
frequency magnetic
elds should be at
levels characteristic
of a typical
location in a typical
home healthcare
environment.

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MANUFACTURER’S DECLARATION
ELECTROMAGNETIC IMMUNITY
The THD2FE is intended for use in the electromagnetic environment (for
home healthcare) specied below. The customer or the user of the THD2FE
should assure that it is used in such an environment.
Immunity Test
IEC 60601
Test Level Compliance Level
Electromagnetic Environment
– Guidance
(for home healthcare environment)
Radiated RF
IEC 61000-4-3
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
Recommended separation
distance:
d = 1,2 √P
d = 1,2 √P80MHz to 800 MHz
d = 2,3 √P800MHz to 2,7 GHz
Where Pis 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 xed RF
transmitters, as determined
by an electromagnetic site
survey,ashould be less than
the compliance level in each
frequency range.bInterference
may occur in the vicinity of
equipment marked with the
following symbol:
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 reection from structures, objects and people.
Field strengths from xed 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 xed RF transmitters, an electromagnetic site survey should be considered. If the measured
eld strength in the location in which the THD2FE is used exceeds the applicable RF compliance
level above, the THD2FE should be observed to verify normal operation. If abnormal performance
is observed, additional measures may be necessary, such as re-orienting or relocating the
THD2FE.

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RECOMMENDED SEPARATION DISTANCES
Between Portable and Mobile RF Communications
Equipment and the THD2FE
The THD2FE is intended for use in an electromagnetic environment
(for home healthcare) in which radiated RF disturbances are controlled.
The customer or the user of the THD2FE can help prevent electromagnetic
interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the THD2FE
as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum
output power of
transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
d= 1,2 √P
80 MHz to 800 MHz
d= 1,2 √P
800 MHz to 2,7 GHz
d= 2,3 √P
0,01 N/A 0,12 0,23
0,1 N/A 0,38 0,73
1 N/A 1,2 2,3
10 N/A 3,8 7,3
100 N/A 12 23
For transmitters rated at a maximum output power not listed above, the recommended separation
distance din meters (m) can be estimated using the equation applicable to the frequency of
the transmitter, where Pis 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 reection from structures, objects and people.

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MANUFACTURER’S DECLARATION
ELECTROMAGNETIC IMMUNITY
Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless communications equipment
The THD2FE is intended for use in the electromagnetic environment (for home healthcare) specied below. The customer or the user of the THD2FE should assure that it is used in such an environment.
Test frequency
(MHz)
Band a)
(MHz) Service a) Modulation b)
Maximum power
(W)
Distance
(m)
Immunity Test
Level
(V/m)
Compliance Level
(V/m)
(for home healthcare)
385 380–390 TETRA 400
Pulse modulation b)
18 Hz 1,8 0,3 27 27
450 430–470 GMRS 460,
FRS 460
FM c)
±5 kHz deviation
1 kHz sine
20,3 28 28
710
704–787 LTE Band 13,17
Pulse modulation b)
217 Hz 0,2 0,3 9 9745
780
810
800–960
GSM 800/900, TETRA
800, iDEN 820, CDMA
850, LTE Band 5
Pulse modulation b)
18 Hz 20,3 28 28
870
930
1720
1700–1990
GSM 1800; CDMA 1900;
GSM 1900; DECT; LTE
Band 1, 3, 4, 25; UMTS
Pulse modulation b)
217 Hz 20,3 28 28
1845
1970
2450 2400–2570
Bluetooth, WLAN,
802.11 b/g/n, RFID
2450, LTE Band 7
Pulse modulation b)
217 Hz 20,3 28 28
5240
5100–5800 WL A N 802.11
a/n
Pulse modulation b)
217 Hz 0,2 0,3 9 95500
5785
NOTE
If necessary 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 IEC 61000-4-3.
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.

The information in this document has been reviewed and is believed to be accurate.
However, neither the manufacturer nor its afliates assume any responsibility for
inaccuracies, errors or omissions that may be contained herein. In no event will
the manufacturer or its afliates be liable for direct, indirect, special, incidental or
consequential damages arisen by using this product or resulting from any defect/omission
in this document, even if advised of the possibility of such damages. The manufacturer
and its afliates reserve the right to make improvements or changes to this document and
the products and services described at any time, without notice or obligation.
CD9999397en© 04-2020 CDN
1-Year Limited Warranty:
Any instrument that proves to be defective in material or workmanship
(excluding batteries) within one year of original purchase will be repaired
or replaced without charge upon receipt of the unit prepaid at: CDN,
PO Box 10947, Portland, OR 97296-0947. This warranty does not cover
damage in shipment or failure caused by failure to adhere to the
accompanying instructions, inadequate maintenance, normal wear and
tear, tampering, accident, misuse, unauthorized modication, obvious
carelessness or abuse. CDN shall not be liable for any consequential
or incidental damages whatsoever.
For more detailed information on our
products, please visit CDNkitchen.com
or call 800-338-5594.
Distributed by:
Component Design Northwest, Inc. dba CDN
2355 NW Vaughn Street
Portland, OR 97210-2311