Maico MA 25 Operating Instructions Manual
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Maico MA 25 Operating Instructions Manual

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Operating Instructions
MA 25 / MA 25e

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Summary of Contents for Maico MA 25

  • Page 1 Operating Instructions MA 25 / MA 25e...

  • Page 3: Table Of Contents

    1 Introduction ..................... 2 2. Description ....................3 2.1 Important safety note ................4 2.2 Unpacking and checking the MA 25 ............5 2.3 Accessories .................... 5 2.4 Connecting the accessories ..............6 3 Function of buttons and display ..............7 3.1 Function buttons ...................

  • Page 4: Introduction

    1 Introduction Thank you for selecting one of our quality products from the MAICO family range. The MA 25 is designed and manufactured to meet all quality and safety requirements, and has been certified with the CE-symbol according to Medical Directive.

  • Page 5: Description

    Operating Instructions MA 25 / MA 25e 2. Description The MA 25 / MA 25e screening audiometer is designed to be a device for screening for hearing loss. Output and specificity of this type of device are based on the test characteristics defined by the user, and may vary depending on environmental and operating conditions.

  • Page 6: Important Safety Note

    Operating Instructions MA 25 / MA 25e 2.1 Important safety note The MA 25 should always be operated in a quiet room with minimal magnetic influence, to ensure that examinations are not disturbed by external noise. Electro-medical instruments that emit...

  • Page 7: Unpacking And Checking The Ma 25

    PLEASE KEEP ALL ORIGINAL PACKAGING FOR FUTURE USE! The MA 25 is packaged in a specially-designed box. Please keep the box as it will be useful for sending the instrument for the instrument check-up, as required by law.

  • Page 8: Connecting The Accessories

    Operating Instructions MA 25 / MA 25e 2.4 Connecting the accessories All the connection jacks can be found on the rear side of the MA 25. All the cables and accessories have to be connected before the instrument is switched on.

  • Page 9: Function Of Buttons And Display

    Present tone: Touch the Tone Switch 3.1 Function buttons F1 - MA 25 - Select the Right ear. MA 25e: Toggle between Right and Left. F2 - MA 25 - Select the Left ear. MA 25e: Store threshold. F3 – Pulse – Pulse Off: Manual tone presentation; Pulse On: Pulsing Tone will be presented.

  • Page 10: Special Functions Of Ma 25E

    Operating Instructions MA 25 / MA 25e 3.2 Special functions of MA 25e Talk Forward: Talk Forward is activated holding down the Hearing Level db dialer. While holding down the Tone Switch the talk forward level can be adjusted. Hughson-Westlake: The following MA 25e F-key functionalities can be accessed by pressing the frequency dialer.

  • Page 11: Display

    Response: When using the patient response switch, a response is indicated in the middle of display header. Power On or Battery status: The power status of the MA 25/MA 25e is indicated in the top right corner of the display header.

  • Page 12: Performing Tone Audiometric Tests

    Operating Instructions MA 25 / MA 25e 4 Performing tone audiometric tests Hearing threshold levels can be determined by presenting test signals to the test subject with the included earphones (air conduction – AC). The purpose of AC audiometry is to establish the hearing sensitivity at various frequencies.

  • Page 13: Setup Menu

    Operating Instructions MA 25 / MA 25e 5 Setup menu To access the MA 25/MA 25e setup menu press F1 and F4 simultaneously for 2-3 seconds. Change setting Browse up in the setup menu Browse down in the setup menu Save settings and Back to previous screen display –...
  • Page 14 Operating Instructions MA 25 / MA 25e Intensity Steps Choose between 1 dB and 5 dB. Power Off Settings Press Change to toggle between Never, 1, 2, 3, 4 or 5 minutes. Pulse Length Press change to toggle between 250 msec and 500 msec.
  • Page 15 Operating Instructions MA 25 / MA 25e HW Test (only MA 25e) Press Change to go to the Hughson Westlake (HW) automatic test procedure setup. Press Change to toggle between Familiarization On/Off. Familiarization is used to train the patient. Press Change to toggle between “2 correct out of 3 answers” and “3 correct out of 5 answers”.
  • Page 16 License Press Change to access the license key of the MA 25/MA 25e. Press Change to enter and modify the license key. Use the Hearing Level dB dialer to change the letter and Frequency Hz dialer to move the cursor. Press Save to return to the main setup menu.

  • Page 17: Warranty And Disclaimer

    6 Warranty and disclaimer Warranty, Maintenance and After-Sales Service Hardware The MA 25 audiometer is guaranteed for 2 years. This warranty is extended to the original purchaser of the instrument by MAICO through the Distributor from whom it was purchased and covers defects in material and workmanship for a period of one year from date of delivery of the instrument to the original purchaser.

  • Page 18: Care And Maintenance

    Operating Instructions MA 25 / MA 25e 7 Care and maintenance Disconnect the power plug before cleaning! If the surface of the instrument or parts of it is contaminated, it can be cleaned using a soft cloth moistened with a mild solution of water and dish washing cleaner or similar.

  • Page 19: Safety Regulations

    Operating Instructions MA 25 / MA 25e 9 Safety regulations 8.1 Electrical safety: The MA 25 / MA 25e is in compliance with Class B of EN 60601-1. The instrument is not to be used in environments dealing with explosive material or equipment.

  • Page 20: Technical Data

    Operating Instructions MA 25 / MA 25e 10 Technical data Standards Audiometer : EN 60645-1/ANSI S3.6, Type 4 Safety : EN 60601-1 EMC : EN 60601-1-2 Frequencies and Maximum Intensities: Maximum Intensities Frequency 125 Hz 250Hz 500Hz 750Hz 1KHz 1.5KHz 2KHz...
  • Page 21 Operating Instructions MA 25 / MA 25e Calibration Air Conduction: ISO 389-1/ANSI S3.6 (DD45). Calibration values: AC-Headphone DD45 Force 4-5 N Reference equivalent threshold according to ISO 389-1 with coupler IEC 60 318-3 [dB] (re 20  Pa) Frequency [Hz] 47.5...
  • Page 22 Operating Instructions MA 25 / MA 25e Calibration values: AC Headphone Holmco 8103 B 26 Force 13...16 N Equivalent Threshold Frequency [Hz] Sound Masking Reference Level [dB] according to ISO 389 - 2 Measured with Coupler IEC 60 318-3 [dB] (re 20 Pa)
  • Page 23 Operating Instructions MA 25 / MA 25e Dimensions W x D x H: 22.5 x 18 x 5.5 cm / 8.9 x 7.1 x 2.2 inches Weight: 1.0 kg/2.2 lbs – including batteries and headset. (1.6 kg/3.5 lbs – including carrying bag headset, audiogram charts etc.)
  • Page 24 Operating Instructions MA 25 / MA 25e Checklist for Subjective Audiometer Testing - Clean the ear and head cushion! Instrument:........- Untangle all lines when necessary Manufacturer:…........ - Are the headphone cushions in good condition? If not  replace Serial No.:.........
  • Page 25 Operating Instructions MA 25 / MA 25e Specifications are subject to change MAICO Diagnostic GmbH Salzufer 13/14 10587 Berlin / Germany Tel.: +49 30 - 70 71 46 - 50 Fax: +49 30 - 70 71 46 - 99 E-mail: sales@maico.biz Web: www.maico.biz...

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