Table of Contents
1 Introduction .............................................................................................................. 1
1.1 About this Manual ................................................................................................................ 1
1.2 Intended Use ....................................................................................................................... 1
1.3 Contraindications for performing impedance audiometry ................................................... 1
1.4 Product description .............................................................................................................. 2
1.5 About warnings and cautions .............................................................................................. 3
2 Unpacking and Installation ....................................................................................... 5
2.1 Unpacking and Inspection ................................................................................................... 5
2.2 Markings .............................................................................................................................. 6
2.3 Important safety instructions ............................................................................................... 7
2.4 Connections ........................................................................................................................ 9
2.5 Calibration cavities .............................................................................................................. 9
2.6 Changing probe system .................................................................................................... 10
2.7 Safety Precautions to take when connecting the AT235. ................................................. 11
2.8 License .............................................................................................................................. 12
3 Operating Instructions ............................................................................................ 13
3.1 Handling and selection of ear tips ..................................................................................... 14
3.2 Switching the AT235 on and off ........................................................................................ 14
3.3 Probe Status ...................................................................................................................... 15
3.4 Use of standard and clinical probe system ....................................................................... 16
3.5 AT235 Stand-alone operation ........................................................................................... 16
3.5.1 AT235 Stand-alone operation panel ....................................................................... 16
3.5.2 Startup ..................................................................................................................... 17
3.5.3 Instrument settings – language, printer, date & time, etc. ...................................... 18
3.5.4 Test and module selection ...................................................................................... 19
3.5.5 Tympanometry test screens .................................................................................... 19
3.5.6 Audiometry test screen ........................................................................................... 24
3.5.7 Start and stop of a tympanometric test ................................................................... 25
3.5.8 Save ........................................................................................................................ 26
3.5.9 View historical sessions .......................................................................................... 27
3.6 Operating in Sync Mode (only with Diagnostic Suite) ....................................................... 28
3.6.1 PC Power Configuration ......................................................................................... 28
3.6.2 Starting from OtoAccess™ ..................................................................................... 28
3.6.3 Starting from Noah 4 ............................................................................................... 29
3.6.4 Crash Report ........................................................................................................... 29
3.6.5 Instrument setup ..................................................................................................... 30
3.7 Using Sync Mode .............................................................................................................. 31
3.7.1 Using IMP Sync....................................................................................................... 31
3.7.2 Using AUD Sync ..................................................................................................... 33
3.7.3 SYNC Mode ............................................................................................................ 35
3.7.4 Client Upload ........................................................................................................... 36
3.7.5 Session download ................................................................................................... 36
4 Maintenance ........................................................................................................... 39
4.1 General Maintenance Procedures .................................................................................... 39
4.2 General Maintenance Procedures .................................................................................... 40
4.3 Cleaning the Probe Tip...................................................................................................... 41