Maico MA 42 Operation Manual

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Maico MA 42 Operation Manual Manual pdf 5 page image

Operation Manual MA 428100460 Rev. 8 5 24/04/20171.5 Essential PerformanceThe following is considered essential performance: To generate and present stimulus signals in the audible range as specified in theapplicable IEC 60645 series in normal condition Record and store a patient response1.6 DescriptionThe MA 42 is a portable two-channel audiometer with pure tone and speech testing. Thedevice also includes special test function: Master Hearing Aid, Decay (Carhart), SISI,ABLB and MLB. It can be used as a portable audiometer or a desktop unit for ENTdiagnostics, hearing aid fittings in the office, and for mobile audiometry in clinics andabroad.The MA 42 audiometer delivers 11 air conduction (AC) test frequencies from 125 Hzto 8 kHz, with transducer dependent levels from -10 dBHL to 120 dBHL. Bone conduction(BC) can be tested with 10 test frequencies from 250 Hz to 8 kHz with levels from-10 dBHL to 80 dBHL (with the standard bone conductor B71). As an upgrade option, theMA 42 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 sound presented to the patient’s ear can be monitored by the examiner with aninternal monitor speaker or external monitor phone.The MA 42 performs tests using headphones, bone conduction receiver, andconfiguration dependent insert phones or speakers. Built-in test signals include pure tone,pulse tone, warble tone, narrow band noise, white noise, and speech noise. Inputs includeports for a live speech microphone and a CD player for speech test material. Speech testscan also be imported via a removable SD memory card. Outputs have separate jacks forair conduction headphones, bone conduction transducer, configuration dependent insertphones and sound field speakers.Furthermore, the patient management feature provides the ability to store results in thedevice for further evaluation and documentation.Results can be printed directly via a USB printer or stored as a PDF file on the includedSD memory card or USB flash drive. The MA 42 can be connected to the PC via USB totrack the session and store the results in NOAH or the MAICO Database.In order to remain current with present and future technologies the MA 42 is compatiblewith PCs, easy to use, extremely reliable, and is adaptable to future developments. It isalso designed to be easily serviced as the need arises.The speaker outputs can also be used as line level outputs for an external amplifier oractive speaker. Please, contact your authorized service center to change to line outputlevels.