Maico MA 53 Operating Instructions Manual

Contents

Maico MA 53 Operating Instructions Manual Manual pdf 3 page image

Operating Instructions MA 53Geba_MA53_e_13a.doc 1 851 430/3 11/11Table of Contents Page1 Introduction ............................................................................................. 42 Description ............................................................................................... 53 Getting started ......................................................................................... 73.1 Unpacking your instrument.................................................................... 73.2 Preparing the MA 53 for use .................................................................. 83.3 Getting familiar with the MA 53 ............................................................ 93.3.1 Using the keyboard of the MA 53.................................................. 103.3.2 The display of the MA 53 .............................................................. 124 Pure tone audiometry ............................................................................. 134.1 Air Conduction (AC) Testing ................................................................ 134.2 Uncomfortable Hearing Level (UCL) Testing .......................................... 144.3 Bone Conduction (BC) Testing ............................................................. 154.4 Masking of the opposite ear .............................................................. 164.4.1 Crossover: .................................................................................... 164.4.2 Masking theory: ............................................................................ 164.4.3 Manual masking: .......................................................................... 164.4.4 Automatic masking: ...................................................................... 174.5 Diagnostic tests ................................................................................... 184.5.1 Suprathreshold tests...................................................................... 184.5.2 The Stenger Test ........................................................................... 224.5.3 The Threshold Decay (Carhart) Test................................................ 224.6 Dual Frequency Mode .......................................................................... 234.7 Free tunable frequencies in 1 Hz Steps (FTF) ......................................... 244.8 High Frequency Audiometry (optional) ................................................. 245 Speech audiometry ................................................................................. 25