How This Thermometer Measures Temperature; Control Displays And Symbols - Microlife IFR 100 Dual Mode Manual

• Earwax in the ear canal may cause a lower temperature
reading. Therefore it is important to ensure the subject's
ear canal is clean.
• A basic physiologic effect called vasoconstriction can
occur in the early stages of fever, resulting in a cool skin
effect, the recorded temperature using a forehead ther-
mometer can, therefore, be unusually low.
• If the measurement result is not consistent with the
patient's finding or unusually low, repeat the measurement
every 15 minutes or double check the result by another
core body temperature measurement.
• This device comprises sensitive components and must be
treated with caution. Observe the storage and operating
conditions described in the «Technical Specifications»
section.
• Ensure that children do not use this device unsuper-
vised; some parts are small enough to be swallowed. Be
aware of the risk of strangulation in case this device is
supplied with cables or tubes.
• The function of this device may be compromised when
used close to strong electromagnetic fields such as
mobile phones or radio installations and we recommend
a distance of at least 1 m. In cases where you suspect
this to be unavoidable, please verify if the device is
working properly before use.
12
• Protect it from:
- extreme temperatures
- impact and dropping
- contamination and dust
- direct sunlight
- heat and cold
• If the device is not going to be used for a prolonged
period the battery should be removed.
WARNING: Use of this device is not intended as a
substitute for consultation with your physician. This
device is NOT waterproof so do not immerse in liquids.

3. How this Thermometer measures Temperature

This thermometer measures forehead and ear temperature.
Forehead measurement
This thermometer measures infrared energy radiated from
the forehead. This energy is collected through the lens and
converted to a temperature value.
Ear measurement
This thermometer measures infrared energy radiated from
the eardrum and the surrounding tissue. This energy is
collected through the lens and converted to a temperature
value. The measured reading obtained directly from the
eardrum (Tympanic Membrane) ensures the most accurate
ear temperature.
Measurements taken from the surrounding tissue of the ear
canal generate lower readings and may result in misdiag-
nosis of fever.
To avoid an inaccurate measurement
1. Switch on the thermometer by pressing the ON/OFF
button 4.
2. After one beep is heard (and the temperature scale icon
is flashing), straighten the ear canal by gently pulling the
middle of the ear back and up.
3. Place the probe 1 firmly into the ear canal, press the
START button 2 and keep the probe in the ear until the
thermometer beeps to signal the completion of the
measurement.

4. Control Displays and Symbols

• All segments displayed 6: Press the ON/OFF button 4
to turn on the unit; all segments will be shown for 2 seconds.
• Memory 7: The last reading will automatically be
shown on the display for 2 seconds.
• Ready for measurement 8: The unit is ready for
measurement, the «°C» or «°F» icon will keep flashing
while the mode icon (ear or forehead) will be displayed.
• Measurement complete 9: The reading will be shown
on the display 3 with the «°C» or «°F» icon and the