Operating Instructions MA 41
8100456_OI_MA41_EN_15a 49 8100456-8 04/15
14.2 Measuring Security
To guarantee that the audiometer works properly, the instrument has to be
checked and calibrated at least once a year.
The service and calibration must be performed by an authorized service center.
In accordance with the regulations of the EU Medical Directive, warranties may
be void if these checks are not done.
The use of non-calibrated audiometers can lead to incorrect test results and is
not advisable.
14.3 Device Control
The user of the instrument should perform a subjective instrument check once
a week.
14.4 Operation
The instrument should only be handled and operated by trained personnel
(audiologists, ENT doctors or personnel with similar qualifications).