7
If the probe has been fitted securely into the ear
canal during the complete measuring process,
a long beep will signal the end of the measuring
process. You can be assured to have taken an
accurate temperature reading. The result is shown
on the display (5).
If you take the temperature of another person, the
«ExacTemp» light (7) will be of help. It flashes
during the measuring process as long as the
probe is securely positioned, and lights up con-
tinuously when an accurate reading has been
taken.
4. If the probe has not been constantly placed in a
stable position in the ear canal, a sequence of
short beeps will sound, the «ExacTemp» light will
go out and the display will show an error message
(«POS» = position error).
5. For the next measurement, eject the used lens
filter (push ejector (4)) and put on a new, clean lens
filter.
IRT 4020:
Clear the display by pushing the
«start» button once.
IRT 4520: Clear the display by pushing the
«I/O» button once.
Wait for the ready signal. Fit the probe snuggly
into the ear canal, then push the «start» button.
The Braun ThermoScan ear thermometer turns off
automatically after 60 seconds of inactivity.
The IRT 4520 can also be turned off by pressing
the «I/O» button for at least three seconds.
The display will shortly flash «OFF» and after
releasing the button it will go blank.
Temperature taking hints
• The right ear reading may differ from the reading
taken at the left ear. Therefore, always take the
temperature in the same ear.
• The ear must be free from obstructions or excess
earwax build-up to take an accurate reading.
• External factors may influence ear temperatures,
including when an individual has:
– been lying on one ear or the other
– had their ears covered
– been exposed to very hot or very cold tempera-
tures, or
– been recently swimming or bathing.
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