User's Manual

2.2.4 Probe tube calibration (REM)

The position for calibration of the probe microphones is indicated below

(refer to Maestro – Fitting and hearing aid test functionalities – User

Manual for further information on how to proceed with calibration). The tip

of the probe tube must be inserted into the relative guides, as near as

possible to the reference microphone, and the headset placed at around 1

metre from and in front of the active speaker.

2.3 PREPARATION FOR AN REM TEST

The REM test must be conducted only by a person specialized in

and authorized to perform audiology procedures. Use of the

instrument by a person without the necessary expertise could result

in damage to the hearing of the patient.

Change the probe for each new patient. Reusing the tube on

different people could result in the spread of ear infections.

Do not push the tube too far into the patient's ear: there is the risk

of perforating the eardrum. Refer to the ruler marked on the

headset to determine the depth of insertion.

Always carry out an ear inspection before proceeding with the REM

test, to make certain there are no obstructions in the ear that could

affect the results of the examination.