Lens filters are located inside the thermometer
storage cover. Remove the box from the cover
and open the box of lens filters by completely
removing top of box (Figure 4a). You may
return the box to the cover for convenient
storage (Figure 4b).
The thermometer is shipped with a lens filter in
place. To install a new lens filter, remove the
one in place, then take a new one from the box
and holding it by its edges, slide it onto the
lens until it is snug and snaps in place.
Caution: Do not touch the tip of the lens or
lens filter when installing.
With a new lens filter in place, attach the
storage cover to the thermometer to protect
the lens from damage and dirt. Place the lens
end of the thermometer into the storage cover
first matching the indent in front of the
activation button with the corresponding tab
inside the cover (Figure 5a), then snap the
opposite ends together (Figure 5b). To
remove the unit from the storage cover,
reverse this procedure.
Note: Always use and store the thermo-
meter with a new lens filter attached.
Apply label to storage cover as indicated
(Figure 5c).
How ear
temperatures
compare to
temperatures
taken at more
traditional sites
The Braun ThermoScan Instant Thermometer
displays ear temperature readings, which
frequently cannot be compared directly to
temperatures taken at the same time at
another site. This is because the temperature
measured at the ear with the Braun
ThermoScan Thermometer more closely
reflects any rapid changes occurring with the
internal (core) body temperature.
Temperatures taken in the ear canal tend to
reflect changes in internal body temperature
sooner than oral, rectal or axillary (armpit)
because the eardrum shares blood supply
with the temperature control center in the
brain. Oral temperatures are influenced by
eating, drinking, smoking, rapid breathing,
thermometer placement or the inability of the
person to close their mouth completely.
Axillary temperatures have not been found to
be accurate indicators of core temperatures
except in newborns.
Temperature changes are also seen sooner
when measured in the ear canal. Studies
show that rectal temperatures “lag“ behind
internal (core) body temperatures, especially
during periods of rapid warming and cooling,
as when you have a fever. This is due to the
poor blood supply in this area, insulating
effects of stool, and the presence of heat
producing microorganisms located there.
8 9
Figure 4
Figure 5
