Publicité
Les langues disponibles
Les langues disponibles
3. HOW IT WORKS
VisioFocus PRO detects the infrared radiation naturally emitted by the body and,
in particular, from the human forehead.
The forehead is the ideal site for taking a temperature reading because it is crossed
by the temporal artery which receives blood flowing from the aorta and carotid
artery.
Moreover, the forehead is the only part of the head in direct contact with the brain
that is not covered by hair.
The brain is the most important, most delicate organ in the human body and it is
the most susceptible to injury from fever.
The head is also the first part of the body to change its temperature as a fever
rises and falls.
With each temperature measurement, your VisioFocus PRO takes a series of 125
readings a tenth of a second. Its sophisticated microprocessor then amplifies and
processes this information along with the room temperature and shows the correct
body temperature through the projection.
Please note that the body temperature varies among individuals: moreover,
individual temperature varies according to the measurement's site and
throughout the day, also in response to physical or mental effort (for example
a baby's crying). Moreover, the body temperature can be affected by the outside
temperature and, depending on the type of reading taken, other factors may also
come into play.
Due to heat dispersion from uncovered parts of the body, the actual temperature
at the forehead is generally lower than that in covered zones.
Therefore, when the "FACE"
button is pressed, the VisioFocus PRO software
automatically applies a correction factor and thus the resulting value is comparable
to that given by other more usual temperature reading sites commonly used in
the countries where the unit is sold - axillary, oral or rectal reading, or internal
temperature reading -, according to the customer's choice.
Nevertheless, the reference value can be changed. Remember, an "oral" reading
is generally 0.2°C (0.4°F) higher than an axillary reading while a "rectal" or "core"
reading is 0.8°C (1.4°F) higher (see par. #7).
The VisioFocus PRO temperature reading taken on the forehead of a healthy
person can range between 35 and 37.5°C (95 and 99.5ºF), in axillary mode,
although in an adult it may even be below 35°C (95°F).
04 - English -
Publicité
