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

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.

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)

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.

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.

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

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.

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.

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.

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.

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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