3M Littmann Classic III Manual De Instrucciones página 10

Select the Active Side of the Chestpiece
1
The Littmann Classic III stethoscope features
a two-sided chestpiece. Only one side of the
chestpiece is acoustically active at any one time,
which is identified by a mark on the stem. Rotate the
chestpiece to change which side is active.
Littmann Tunable Diaphragm - Listen to Low and
High Frequency Sounds
Both sides of the chestpiece are equipped with the
proprietary Littmann tunable diaphragm that enables
you to emphasize either low or high frequency
sounds by simply adjusting the pressure applied to
the patient.
Low frequencies: To
emphasize lower frequency
sounds, use light pressure
against the patient.
High frequencies: To
emphasize higher frequency
sounds, use firm pressure
against the patient.
Convert to a Traditional Open Bell
The small side of the chestpiece
can be used with the Littmann
tunable diaphragm or it can be
converted to a traditional open
bell with the nonchill sleeve
included with your purchase.
To remove the Littmann tunable
diaphragm, pinch the rim of the
diaphragm with your thumb and
index fingernails; pull and lift the
diaphragm from the chestpiece.
To assemble the nonchill bell
sleeve, place one side of the
sleeve on the edge of the
chestpiece and stretch it over
and around the chestpiece edge.
To re-assemble the Littmann
tunable diaphragm, remove
the nonchill bell sleeve. Insert
the flexible edge of the tunable
diaphragm into the groove
of the rim and slowly roll
the rim around and over the
chestpiece edge.
2