Table of Contents
1 Introduction ............................................................................................................ 3
1.1 Intended Use Statement ............................................................................................. 3
1.2 Indications for Use Statement ..................................................................................... 3
1.3 Contraindications of Use ............................................................................................. 3
1.4 Features and Benefits of the MA 25/MA 25e and MA 27/MA 27e ................................ 3
1.5 Description .................................................................................................................. 4
2 For Your Safety ...................................................................................................... 5
2.1 How to Read this Operation Manual ........................................................................... 5
2.2 Customer Responsibility ............................................................................................. 6
2.3 Manufacturer’s Liability ............................................................................................... 6
2.4 Regulatory Symbols .................................................................................................... 7
2.5 General Precautions ................................................................................................... 8
2.6 Electrical Safety and Measuring Security .................................................................... 8
2.7 Device Control ...........................................................................................................10
2.8 Electromagnetic Compatibility (EMC) .........................................................................10
3 Warranty, Maintenance and After-Sales Service .............................................. 11
3.1 Warranty ....................................................................................................................11
3.2 Maintenance ..............................................................................................................11
3.3 Cleaning and Disinfection Recommendations ............................................................11
3.4 Disposables ...............................................................................................................12
3.5 Accessories/Replacement Parts ................................................................................12
3.6 Recycling and Disposal ..............................................................................................12
4 Unpacking and Hardware Orientation ................................................................ 13
4.1 Unpacking the System ...............................................................................................13
4.2 Hardware Orientation .................................................................................................14
5 Operating the Device ........................................................................................... 18
5.1 Getting started with the MA 25/MA 25e and the MA 27/MA 27e .................................18
5.2 Switching the Device On and Off ...............................................................................19
5.3 Device Layout ............................................................................................................19
5.4 Function Keys ............................................................................................................20
5.5 MA 25e/MA 27e Special Functions ............................................................................20
5.6 Screens .....................................................................................................................21
5.7 Preparing for Testing .................................................................................................22
5.8 Tone Setup Menu ......................................................................................................23
5.9 Managing Test Results ..............................................................................................27
6 Technical Data ..................................................................................................... 28
6.1 MA 25/MA 25e/MA 27/MA 27e Hardware ..................................................................28
6.2 Connections ...............................................................................................................30
6.3 Pin Assignment ..........................................................................................................31
6.4 Calibration Values and Maximum Levels ...................................................................31
6.5 Electromagnetic Compatibility (EMC) .........................................................................33
6.6 Electrical Safety, EMC and Associated Standards .....................................................37
6.7 Checklist for Subjective Audiometer Testing ..............................................................38
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