3M Littmann Master Classic II Bedienungsanleitung

• Excellent acoustic sensitivity

• Patented tunable

diaphragm for monitoring

low and high frequencies

• Compact and portable design

• High-performance

single-lumen tubing

• Patented Littmann®

Soft-sealing eartips

Master Classic II

Stethoscope

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English

3M™ Littmann® Master Classic II

Stethoscope

Congratulations on the purchase of your new Littmann

Master Classic II Stethoscope.

This award-winning design combines high performance

and excellent acoustic sensitivity with the portable

convenience of a single-sided stethoscope. The

patented tunable diaphragm conveniently alternates

between low and high frequency sounds without the

need to turn over the chestpiece.

Other features include a patient-friendly nonchill rim

and diaphragm, excellent acoustic seal and comfortable

fit with patented 3M™ Littmann® Snap Tight soft-

sealing eartips, and a comfortably angled, anatomically

correct headset. The high performance, single-lumen

tubing is available in a range of attractive colors to meet

individual preferences.

Most of all, know that your Littmann Master Classic II

stethoscope carries the Littmann brand name, the name

known worldwide for unsurpassed quality. As a trusted

leader in auscultation technology, the Littmann brand of

stethoscopes is your assurance of acoustical superiority,

innovative design and exceptional performance.

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Instructions for Use

Changing Frequencies Using the

Tunable Diaphragm

Your Littmann Master Classic II Stethoscope is

equipped with a patented tunable diaphragm that

enables you to listen to both low and high frequency

sounds without turning over the chestpiece.

Low frequencies: To listen

to low frequency sounds

(traditional bell mode) use

very light skin contact.

High frequencies: To listen

to higher frequency

sounds (traditional

diaphragm mode), press

firmly on the chestpiece.

To listen to low and high frequency sounds without

removing and repositioning the chestpiece simply

alternate between light and firm pressure on the

chestpiece.

Headset Adjustment

Your new Littmann stethoscope

is designed to provide a

comfortable, acoustically sealed

ear fit. Notice that the eartubes

are set to accommodate the

typical anatomy of the ear canal.

The eartips should point in a

forward direction as you insert

them into your ear canals.

To reduce spring tension in

the headset, hold each eartube

at the bend near the eartip and

gradually pull apart until fully

extended.

To increase spring tension,

grasp the headset with one

hand where the eartubes enter

the tubing and squeeze until

the tubing on one eartube

touches the other. Repeat as

necessary.

For maximum acoustic

performance, comfortable

patented 3M™ Littmann®

Soft-sealing Eartips are

provided with your

stethoscope. This stethoscope

utilizes a unique design for

attaching the eartip to the

eartube. The eartips are pushed on to the end of the

eartube and snapped firmly into place. To remove, pull

firmly on the eartip.

Removing the Diaphragm and

Cleaning the Chestpiece

With the diaphragm side up,

grasp the rim with the

thumbs and index fingers of

both hands and roll the rim

off the edge of the

chestpiece. Remove the

diaphragm from the rim and

clean the parts in soapy water or wipe with alcohol.

Chestpiece surfaces can be wiped with alcohol or soapy

Correct

Incorrect

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water. Dry all parts and surfaces thoroughly before

reassembly.

Assembly and Replacement of the

Tunable Diaphragm

Using your fingertip, apply a

small amount of talcum powder

to the inside surface of the

flexible edge of the diaphragm.

This will facilitate assembly

and maintain smooth and quiet

low/high frequency alternation.

Snap the diaphragm with your

fingers to remove excess talc.

Insert the flexible edge of the

diaphragm into the groove of

the rim. This is best

accomplished by starting with

the rim positioned above the

legible side of the diaphragm.

Visually examine the ring to

ensure that the flexible edge is

smoothly engaged inside the

rim. If necessary, flex the

assembly by pinching the outer

rim edge between the thumb

and fingers. Repeat this flexing

procedure after rotating the

assembly one quarter.

To attach the rim/diaphragm

assembly to the chestpiece,

engage the groove of the rim

(with the diaphragm attached)

around the chestpiece at one

point and hold it in place with

your thumbs.

Slowly roll the rim around and

over the chestpiece edge using

both thumbs, moving in

opposite directions around the

chestpiece.

Visually inspect the edge

where the diaphragm engages

the rim for uniform

containment. Minor

adjustments may be made by

slightly pulling and rolling the

rim away from the diaphragm,

allowing the diaphragm to slip into position.

General Use and Maintenance

• Avoid extreme heat, cold, solvents, and oils.

• The entire stethoscope can be wiped clean with

alcohol or soapy water.

• Eartips can be removed from the eartubes for

thorough cleaning.

NOTE: Do not immerse your stethoscope in any liquid

or subject it to steam sterilization. If disinfection is

required, the stethoscope may be wiped with a 70%

isopropyl alcohol solution.

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Littmann Stethoscope Service and

Warranty Program

Your Littmann stethoscope comes with the finest service

and warranty policy in the industry. The Littmann

Master Classic II Stethoscope is warranted against any

defects in material and workmanship for a period of three

(3) years. If a material or manufacturing defect is

discovered during the warranty period, repairs will be

made without charge upon the return of the instrument to

3M, except in cases of obvious abuse or accidental

damage.

For maintenance or repair services, write a short note

explaining the repair or service you require, include

your name, address and phone number and send your

stethoscope directly to:

3M Health Care Service Center

Bldg. 502, Suite 200

3350 Granada Ave. North

Oakdale, MN 55128

IN CANADA:

3M Health Care Service Centre

3M Canada Inc.

80 Enterprise Drive South

London, Ontario

Canada N6N1C2

1-800-563-2921

Outside of the U.S. and Canada please contact your local

3M subsidiary for maintenance and repair information.

Explanation of Symbols:

• Attention, see instructions for use.

• This product and package do not contain

natural rubber latex.

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