Operating Instructions MA 42
Operating_Instructions_8100460-6_MA42_e_15a 4 8100460-6 1/15
2 Description
The MA 42 is a portable two-channel audiometer with master hearing aid, as
well as pure tone, speech and sound field audiometric testing. It can be used
for ENT diagnostics and hearing aid fittings in the office, and for mobile
audiometry in clinics and abroad.
The MA 42 audiometer delivers 11 air conduction (AC) test frequencies from
125 Hz to 8 kHz, with levels from -10 dB
HL
to 120 dB
HL
. Bone conduction (BC)
can be tested with 10 test frequencies from 250 Hz to 8 kHz with levels from-
10 dB
HL
to 80 dB
HL
(with the standard bone conductor B 71).
The large back lighted LCD-colour display shows level, frequency, transducer,
signal type, audiograms and other information for each channel.
The sound presented to the patient’s ear can be examined with an internal
monitor speaker or external monitor phone.
The MA 42 performs tests using DD45 headphones, B71W bone conduction
receiver and optional insert phones or optional speakers. Built-in test signals
include pure tone, pulse tone, warble tone, narrow band noise, white noise and
speech noise. Inputs include ports for live speech and CD speech test material.
Speech tests can also be played from a removable SD memory card. Outputs
have separate jacks for air conduction earphones, bone conduction, optional
insert phones and optional sound field speakers.
As additional feature the patient management provides the possibility to store
results in the device for further evaluation and documentation.
Results can also be printed directly by a USB printer or stored as PDF file on the
included SD memory card or USB flash drive. The MA 42 can be connected to
the PC via USB to track the session and store the results in NOAH or the MAICO
Database.
As a result of modern technology, the MA 42 offers high connectivity to PC, is
easy to use, extremely reliable and adoptable to future developments.
Furthermore, it is designed to be service friendly. Automatic test programs
make trouble shooting and the yearly calibration as easy as possible.
The speaker outputs can also be used as line level outputs for an external
amplifier or active speaker. Please contact your authorized service center to
change to line output levels.
To Next Page
Loading...
Need help?
General
