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E-A-R Auditory Systems E-A-RTONE 5A Instructions For The Use page 4

Insert earphones

1. Preliminary Procedures for Use of the E-A-RTONE

Initially examine the ear canal for obstruction(s) and evaluate the proper size

of E-A-RLINK

Although the standard E-A-RLINK

diameter E-A-RLINK

large for full insertion in small external canals. A good seal and the proper

insertion depth will afford the greatest ambient and interaural attenuation.

Insertion procedures are the same for the E-A-RLINK

3B, but deep insertion may be difficult to achieve in extremely small ear

canals. In these instances, the newly available Infant Eartips are appropriate.

• Secure the section of black tubing, which protrudes from the

E-A-RLINK

E-A-RTONE

• Slowly roll the E-A-RLINK

insert the E-A-RLINK

case will function as an insertion tool. Since the eartips are 12 mm long,

the correct insertion depth into the ear canal is obtained when the rear

edge of the E-A-RLINK

• Hold E-A-RLINK

• After the test is completed, remove the E-A-RLINK

with a new pair for the next subject.

Full Insertion

disposable foam eartip needed to fit the particular ear canal.

3B eartips are available if the standard eartip is too

eartip, to the sound tube nipple protruding from the

5A case.

well into the ear canal (see illustrations). The

in the ear canal until expanded.

E-A-RTONE

Case

3A fits most adult ear canals, the smaller

tip into the smallest diameter possible and

is 2-3 mm inside the entrance of the ear canal.

Foam eartip

Black

tubing

E-A-RLINK

3A and E-A-RLINK

eartips and replace

Shallow Insertion