User's Manual

The response in the auditory canal can also be measured using the earmold

of the patient's hearing aid, rather than a disposable tip. Likewise in this

instance, the probe tube must first be inserted in the auditory canal of the

patient as described in Heading 2.3.1, following which the mold, connected

previously to the insert transducer, can be placed in the ear. Here again,

special care must be taken during the operation to avoid displacing the

probe tube inserted previously from its correct position. An example of the

final set-up is illustrated in the following image:

Electing to use the patient's earmold for acquisition of the measurement in

the ear, there are two distinct configurations possible for measuring the

response in the coupler.

The first configuration, identified as HA1, requires the use of the adapter

(1). As with the disposable tip, connect the adapter (1) to the coupler, and

the earmold to the insert transducer. Finally, attach the earmold to the

adapter, using adhesive insulating putty to ensure that the two parts are

securely connected with no gaps left between them. The correct position is

shown in the following image: