Essential Performance; Description - Maico MA 41 Operation Manual

Essential Performance

The following is considered essential performance:
 To generate and present stimulus signals in the audible range as specified in the
applicable IEC 60645 series in normal condition
 Record and store a patient response

Description

The MA 41 is a portable one and half channel audiometer with pure tone and speech
testing. Additionally, it has limited special audiology test function which include Stenger
and Master Hearing Aid. It can be used as a portable audiometer or a desktop unit for
ENT diagnostics, hearing aid fittings in the office, and for mobile audiometry in clinics and
abroad.
The MA 41 audiometer delivers 11 air conduction (AC) test frequencies from 125 Hz
to 8 kHz, with transducer dependent levels from -10 dB
(BC) can be tested with 10 test frequencies from 250 Hz to 8 kHz with levels from
-10 dB to 80 dB (using the included bone oscillator). As an upgrade option, the MA 41
HL HL
is also capable of high frequency audiometry up to 16 kHz.
The large back lighted LCD color display shows level, frequency, transducer, signal type,
audiograms, and other information for each channel.
The MA 41 performs tests using headphones, bone conduction oscillator, configuration
dependent insert phones and speakers. Built-in test signals include pure tone, pulse tone,
warble tone, narrow band and speech noise. Inputs include ports for a live speech
microphone and a CD player for speech test material. Speech tests can also be imported
via a removable SD memory card. Outputs have separate jacks for air conduction
headphones, bone conduction transducer, configuration dependent insert phones and
sound field speakers.
Furthermore, the patient management feature provides the ability to store results in the
device for further evaluation and documentation.
Results can be printed directly via a USB printer or stored as a PDF file on the included
SD memory card or USB flash drive. The MA 41 can be connected to the PC via USB to
track the session and store the results in NOAH or the MAICO Database.
In order to remain current with present and future technologies the MA 41 is compatible
with PCs, easy to use, extremely reliable, and is adaptable to future developments. It is
also designed to be easily serviced as the need arises.
The speaker outputs are used with the internal amplifies. For use with an external
amplifier or active speaker, contact your authorized service center to change to line output
levels.
8100456 Rev. 10
Operation Manual MA 41
to 120 dB
HL
5
. Bone conduction
HL
24/04/2017