Braun Thermoscan Instructions 4520



Trouble-shooting – Braun ThermoScan IRT 4520 User Manual. Text mode; Original mode 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19. The Braun ThermoScan 5 digital ear thermometer is designed to take the body temperature of your family in a fast, gentle and easy to use way and give you some peace of mind when your child comes down with a fever.


Error message



No lens filter is attached.

Braun Thermoscan User Manual

Braun Thermoscan Instructions 4520

Attach new, clean lens filter.

The thermometer probe was not
positioned securely in the ear.
An accurate measurement was
not possible.


POS = position error

IRT 4020: Clear the display by
pushing the Start button once.
IRT 4520: Clear the display by
pushing the «I/O» button once.

Take care that the positioning of
the probe is correct and remains

Ambient temperature is not within
the allowed operating range
(50 – 104 °F or 10 – 40 °C).

Allow the thermometer to remain
for 30 minutes in a room where
the temperature is between
50 and 104 °F or 10 and 40 °C .

Temperature taken is not within
typical human temperature range
(93.2 – 108 °F or 34 – 42.2 °C).

HI = too high

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LO = too low

Braun thermoscan 5 instruction manual

Make sure the probe tip and lens
are clean and a new, clean lens
filter is attached. Make sure the
thermometer is properly inserted.
Then, take a new temperature.

System error – self-check display
flashes continuously and will not
be followed by the ready beep
and the ready symbol.

If error persists,

Braun Thermoscan Instructions 4520

If error still persists,

Wait 1 minute until the thermo-
meter turns off automatically, then
turn on again.

.. reset the thermometer by re-
moving the batteries and putting
them back in.

Braun Thermoscan Irt 4520 Instructions

… call Braun ThermoScan
customer service at

IRT4520/4020_NA_S4-42 Seite 10 Freitag, 18. August 2006 11:33 11

Braun Thermoscan Instructions 4520


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