MADSEN OTOflex 100 & OTOsuite User Manual Volume 1 Oct 2012

Copyright notice No part of this Manual or program may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written consent of GN Otometrics A/S. Copyright© 2012, GN Otometrics A/S Printed in Denmark by GN Otometrics A/S, Denmark. All information, illustrations, and specifications in this manual are based on the latest product information available at the time of publication. GN Otometrics A/S reserves the right to make changes at any time without notice. Version release date 9. October 2012 Technical support Please contact your supplier.

FM template version: 01-02-2010

Table of Contents MADSEN OTOflex 100 & OTOsuite Immittance Module User Manual 1

Introduction... 11 1.1 MADSEN OTOflex 100... 11 1.2 OTOsuite and the Immittance Module... 11 1.2.1 The flexibility of the OTOsuite Immittance Module... 12 1.3 Intended use... 12 1.3.1 MADSEN OTOflex 100... 12 1.3.2 The Immittance Module... 13 1.4 About this manual... 13 1.4.1 Safety... 13 1.4.2 Installation... 13 1.4.3 Descriptions and testing... 14 1.4.4 Preparing for testing... 14 1.4.5 Printing... 14 1.4.6 Maintenance and cleaning... 14 1.5 Typographical conventions... 14 1.5.1 Navigation... 14

2

Getting started with MADSEN OTOflex 100 and the OTOsuite Immittance Module... 15 2.1 Unpacking... 15 2.2 Installation... 15 2.3 Starting up OTOflex 100... 15 2.3.1 Language setting... 16 2.4 Starting up the Immittance Module... 17 2.5 Immittance Module features... 17

3

OTOflex 100 views and main description... 19 3.1 Handling and switching on OTOflex 100... 19 3.1.1 Keypad main functions... 19 3.1.2 The display - test mode... 22 3.2 Controls and menu selections... 23 3.2.1 The Menu... 23 3.2.2 Test Selector mode... 25 3.2.3 The Text Editor... 27 3.2.4 The Tympanometric Curve Selector... 28 3.2.5 The OTOflex 100 Menu... 28

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Table of Contents MADSEN OTOflex 100 & OTOsuite Immittance Module • User Manual

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Navigating in the OTOsuite Immittance Module... 31 4.1 The Immittance Module menu system and toolbar... 4.1.1 Edit menu... 4.1.2 Measurement menu... 4.1.3 Tools menu... 4.1.4 Additional icons... 4.2 The Immittance Module Control Panel... 4.2.1 Sequence selection... 4.2.2 Test control buttons... 4.2.3 Changing Control Panel settings... 4.3 The Tympanometry screen... 4.4 The Acoustic Reflex screens... 4.4.1 The Reflex Screening screen... 4.4.2 The Reflex Threshold screen... 4.4.3 The Reflex Decay screen... 4.5 The ETF-P screen... 4.5.1 The post-analysis tool...

5

Test Device Management in OTOsuite... 43 5.1 Setting up communication with the test device... 5.1.1 Selecting test devices... 5.1.2 Connection... 5.1.3 Connecting to a test device... 5.1.4 Reconnecting to a test device... 5.1.5 Test device information... 5.1.6 Firmware upgrade - test devices...

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43 43 44 44 44 44 44

Preparing OTOflex 100 and the Immittance Module for testing... 47 6.1 Preparing the test environment... 6.1.1 The test environment... 6.2 Hygienic precautions... 6.3 Preparing OTOflex 100... 6.3.1 Preparing the probe... 6.3.2 Using the cap... 6.3.3 Probe check... 6.3.4 Selecting patient folder and test type in OTOflex 100... 6.3.5 Test flow setup... 6.3.6 Users... 6.4 Preparing the patient... 6.4.1 Fitting the eartip on the probe... 6.4.2 Fitting the probe in the patient’s ear... 6.4.3 Leakage... 6.5 Preparing for the next patient...

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31 32 32 32 33 33 34 34 35 35 36 37 38 40 41 41

47 47 48 48 48 49 53 54 55 56 57 57 58 59 60

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Table of Contents MADSEN OTOflex 100 & OTOsuite Immittance Module • User Manual

7

Testing with MADSEN OTOflex 100... 63 7.1 7.2 7.3 7.4

Fast diagnostics - the quick approach... General test softkeys and shortcuts... Start testing... Sequence testing... 7.4.1 Selecting a test sequence... 7.4.2 Running a test sequence from OTOflex 100... 7.5 Screening... 7.5.1 Screening tympanometry... 7.5.2 Reflex screening... 7.5.3 Settings - Screening... 7.6 Tympanometry... 7.6.1 Tympanometry softkeys and shortcuts... 7.6.2 Diagnostic tympanometry... 7.6.3 The diagnostic tympanometry result... 7.6.4 Settings - Diagnostic tympanometry... 7.7 ETF-I (Eustachian Tube Function - Intact)... 7.7.1 Settings - ETF-I... 7.8 Acoustic reflex testing... 7.9 Reflex Threshold testing... 7.9.1 Keys and functions... 7.9.2 Automatic and semi-automatic Reflex Threshold testing... 7.9.3 Viewing Reflex threshold results... 7.9.4 Settings - Automatic and semi-automatic Reflex Threshold... 7.9.5 Manual Reflex Threshold testing... 7.9.6 The Reflex Threshold results... 7.9.7 Manually selecting/deselecting Reflex Threshold values... 7.10 Reflex Decay testing... 7.10.1 Keys and functions... 7.10.2 Automatic Reflex Decay testing... 7.10.3 Settings - Automatic Reflex Decay... 7.10.4 The Reflex Decay results... 7.10.5 Manual Reflex Decay... 7.11 ETF-P testing (Eustachian Tube Function - Perforated)... 7.11.1 Idle mode functions... 7.11.2 Pressure build functions... 7.11.3 The test... 7.11.4 The ETF-P result... 7.11.5 The Immittance Module post-analysis tool - ETF-P...

8

Managing Test Results in OTOflex 100... 97 8.1 When testing is done... 8.2 Swap ear results... 8.3 Delete measurements... 8.3.1 Tympanometry...

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63 64 65 65 66 66 67 67 67 70 71 72 72 74 76 76 76 77 78 79 80 82 83 84 85 85 86 87 88 89 90 91 93 93 93 94 95 95

97 97 97 97

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Table of Contents MADSEN OTOflex 100 & OTOsuite Immittance Module • User Manual

8.3.2 Reflex Threshold... 8.4 Deleting Test Results... 8.5 Communicating and synchronizing with OTOsuite... 8.5.1 Synchronizing data... 8.5.2 Synchronization of corrections made to Patient Folders...

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97 98 98 99 99

Printing... 101 9.1 Printers in OTOflex 100... 101 9.1.1 Selecting printers in OTOflex 100... 101 9.1.2 Printing from OTOflex 100... 101

10 Testing with the OTOsuite Immittance Module... 103 10.1 Sequence testing... 103 10.1.1 Selecting a test sequence... 103 10.1.2 T + RS (Tympanometry + Reflex Screening)... 103 10.1.3 T + RT (Tympanometry + Reflex Thresholds)... 104 10.1.4 T + RT + RD (Tympanometry + Reflex Threshold + Reflex Decay)... 104 10.1.5 Off... 104 10.1.6 Running a test sequence from the Immittance Module... 104 10.2 Screening... 105 10.2.1 Screening tympanometry... 106 10.2.2 Acoustic Reflex Screening... 106 10.3 Tympanometric testing... 108 10.3.1 Diagnostic tympanometry... 108 10.3.2 ETF-I, Eustachian Tube Function - Intact... 110 10.4 Acoustic Reflex Threshold testing... 110 10.4.1 Automatic and semiautomatic threshold testing... 111 10.4.2 Manual threshold testing... 115 10.5 Acoustic Reflex Decay testing... 117 10.5.1 Automatic Acoustic Reflex Decay testing... 118 10.5.2 Manual Acoustic Reflex Decay testing... 119 10.6 ETF-P (Eustachian Tube Function - Perforated)... 121 10.7 Managing test results... 122 10.7.1 Tests and subtests... 122 10.7.2 Swapping ear data... 122 10.7.3 Deleting data... 123 10.8 Leakage... 123 10.9 Testing the other ear... 124 10.10Saving measurements... 124 10.10.1 Standards used in NOAH... 124 10.11Preparing for the next patient... 125

11 Data management in MADSEN OTOflex 100... 127 11.1 Data handling... 127

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Table of Contents MADSEN OTOflex 100 & OTOsuite Immittance Module • User Manual

11.1.1 Interruption of communication... 11.1.2 Synchronization... 11.2 Uploading test results to OTOsuite... 11.3 Data clean-up...

127 127 128 129

12 Immittance test setup in MADSEN OTOflex 100... 131 12.1 Test settings... 12.1.1 Changing individual settings... 12.1.2 Uploading test settings to the Immittance Module... 12.1.3 Creating a setup... 12.1.4 Editing a test setup... 12.1.5 Using a test setup... 12.2 General actions... 12.2.1 Manage test results... 12.2.2 Procedure options... 12.2.3 Advanced... 12.2.4 Device settings... 12.3 Tympanometry setup... 12.3.1 Screening tympanometry... 12.3.2 ETF-I setup... 12.4 Acoustic Reflex Screening setup... 12.5 Acoustic Reflex Threshold setup... 12.6 Acoustic Reflex Decay setup... 12.7 ETF-P setup... 12.8 Test sequences... 12.8.1 Selecting a sequence setup...

131 131 133 134 134 134 135 135 137 140 141 144 148 148 149 152 159 161 162 163

13 Immittance Module Tools Options (view and measurement options)... 167 13.1 General settings... 13.1.1 Available settings... 13.2 View settings... 13.2.1 Tymp. and Reflex Scr. view settings... 13.2.2 Reflex Threshold view settings... 13.2.3 Reflex Decay view settings... 13.2.4 ETF-P view settings... 13.3 Measurement settings... 13.3.1 Tympanometry setup... 13.3.2 ETF-I Setup... 13.3.3 Acoustic Reflex Screening setup... 13.3.4 Acoustic Reflex Threshold setup... 13.3.5 Reflex Decay setup... 13.3.6 ETF-P setup...

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167 167 169 169 172 173 173 173 174 177 177 179 184 187

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Table of Contents MADSEN OTOflex 100 & OTOsuite Immittance Module • User Manual

14 OTOflex 100 Service and Maintenance... 189 14.1 Equipment failure... 14.2 Service and repair... 14.3 Maintenance... 14.3.1 Calibration... 14.3.2 Probe cleaning and maintenance... 14.4 Cleaning and disinfecting the probe tip... 14.4.1 Changing the wax filter... 14.5 Cleaning OTOflex 100... 14.5.1 Eartips... 14.5.2 Disposal of disposable articles... 14.5.3 Batteries and charger... 14.5.4 Safety information... 14.5.5 Environmental protection...

189 189 189 190 190 191 193 193 194 194 194 195 196

15 Installing MADSEN OTOflex 100... 197 15.1 Unpacking OTOflex 100... 15.2 Storing OTOflex 100... 15.3 Views of OTOflex 100... 15.3.1 Front view... 15.3.2 Top view... 15.3.3 Bottom view... 15.3.4 Reverse side view... 15.3.5 The charger... 15.4 The probe... 15.5 Assembly and installation... 15.5.1 Location... 15.5.2 Desktop installation... 15.5.3 Wall mount installation... 15.6 Powering... 15.6.1 Powering OTOflex 100... 15.6.2 Batteries... 15.6.3 The charger... 15.6.4 Switching on OTOflex 100... 15.6.5 Bluetooth...

197 197 197 198 198 199 199 199 200 200 200 201 202 204 204 204 207 208 208

16 Configuring OTOsuite... 211 App. 1

Standards and safety - OTOflex 100 and the Immittance Module... 213 App. 1.1 Symbols used... App. 1.1.1 OTOflex 100 symbols... App. 1.1.2 Charger unit symbols... App. 1.1.3 The OTOsuite Audiometry Module...

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213 213 214 215

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Table of Contents MADSEN OTOflex 100 & OTOsuite Immittance Module • User Manual

App. 1.2 Warning notes... App. 1.2.1 OTOflex 100 warning notes... App. 1.2.2 Charger unit warning notes... App. 1.3 Manufacturer... App. 1.3.1 Responsibility of the manufacturer...

App. 2

MADSEN OTOflex 100 Immittance Methodology and Features... 219 App. 2.1 An introduction to immittance... App. 2.1.1 Immittance testing... App. 2.2 Tympanometry... App. 2.2.1 Tympanometry testing on infants... App. 2.2.2 Tympanometric features... App. 2.2.3 ETF-I (Eustachian Tube Function - Intact)... App. 2.2.4 Valsalva’s Maneuver... App. 2.2.5 Toynbee’s Maneuver... App. 2.3 Acoustic Reflex testing... App. 2.3.1 Acoustic Reflex Screening... App. 2.3.2 Acoustic Reflex Threshold... App. 2.3.3 Acoustic reflex decay... App. 2.3.4 Admittance monitoring... App. 2.4 ETF-P (Eustachian Tube Function - Perforated)... App. 2.5 Susceptance and Conductance, B/G... App. 2.5.1 Susceptance, B... App. 2.5.2 Conductance, G... App. 2.5.3 B/G viewing of tympanograms... App. 2.5.4 Component compensation...

App. 3

Navigation and editing symbols... Powering... Communication... Messages... Leakage...

247 248 248 248 249

Troubleshooting... 251 App. 5.1 App. 5.2 App. 5.3 App. 5.4

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Terminology... 233 Abbreviations... 244

MADSEN OTOflex 100 Icons... 247 App. 4.1 App. 4.2 App. 4.3 App. 4.4 App. 4.5

App. 5

219 219 220 220 221 223 224 224 224 225 226 226 227 227 227 228 229 230 230

Glossary... 233 App. 3.1 App. 3.2

App. 4

215 215 217 217 218

Powering... Testing... Communication... Probe-fit related problems...

251 251 252 252

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Table of Contents MADSEN OTOflex 100 & OTOsuite Immittance Module • User Manual

App. 6

Technical Specifications - MADSEN OTOflex 100... 253 App. 6.1 OTOflex 100... App. 6.1.1 Compliance measuring system... App. 6.1.2 Acoustic Reflex... App. 6.1.3 Air pressure system... App. 6.1.4 Unit of admittance graph Y-axis... App. 6.1.5 Unit of graph X-axis... App. 6.1.6 Display... App. 6.1.7 Interface... App. 6.1.8 Type identification... App. 6.1.9 Power supply... App. 6.2 Charger unit... App. 6.3 Operating environment... App. 6.4 Storing and handling... App. 6.5 Dimensions... App. 6.6 Weight... App. 6.7 Miscellaneous... App. 6.8 Calibration... App. 6.9 Standards...

253 253 253 254 255 255 255 255 255 255 255 256 256 256 256 256 257 257

Index... 259

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1

Introduction

1.1

MADSEN OTOflex 100 Thank you for purchasing OTOflex 100. OTOflex 100 is a compact and portable wireless immittance test device, which offers a complete range of capabilities for middle ear diagnostics. OTOflex 100 can be operated anywhere as a stand-alone device or operated directly from OTOsuite. OTOflex 100 integrates closely with the OTOsuite Immittance Module, with full test control from both the device and OTOsuite. When used with OTOsuite, you gain additional features and diagnostic value offered by the comprehensive user interface and NOAH compatibility of OTOsuite. OTOflex 100 - OTOsuite interfacing

OTOflex 100 is designed to operate with the OTOsuite Immittance Module. Bluetooth

OTOflex 100 connects with OTOsuite via BluetoothTM, which provides wireless connection between OTOflex 100 and OTOsuite up to a range of approximately 10 metres (approx. 33 ft), and up to a range of 100 metres (approx. 330 ft) for other electronic devices. NOAH

The NOAH System is a HIMSA product for managing clients/patients, launching hearing test applications and fitting software, and storing audiological test results. OTOflex 100 test results can be stored in the NOAH database via OTOsuite.

1.2

OTOsuite and the Immittance Module The OTOsuite Immittance Module offers real time presentation of test results and full test control of MADSEN OTOflex 100 directly from a PC. Test devices with integrated user interfaces can be operated independently of the Immittance Module, although additional features and diagnostic value is offered by the Immittance Module's comprehensive user interface and NOAH compatibility. The test functionalities of the OTOsuite Immittance Module depend on the connected device, as does the selection of test parameters, and remote control.

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Introduction Intended use

The OTOsuite Immittance Module lets you work with NOAH or save and view results via XML files. The OTOsuite Immittance Module supports • screening and diagnostic tympanometry • Reflex Threshold testing • Reflex Decay testing • ETF-P • user-defined tests. Immittance Module - OTOflex 100 interfacing

The Immittance Module is designed to operate with OTOflex 100 as the test device (produced by Otometrics). 1.2.1

The flexibility of the OTOsuite Immittance Module

When used for testing, the OTOsuite Immittance Module adapts to the connected test device. Consequently, the test functionalities of the OTOsuite Immittance Module depend on the connected device, as does the selection of test parameters, and remote control.

1.3

Intended use 1.3.1

MADSEN OTOflex 100

OTOflex 100 is an audiodiagnostic device intended for clinical, diagnostic and screening tympanometry and reflex measurements performed by audiologists, ENTs and other health care professionals. It is designed for use on infants, children and adults, and is lightweight, fast, reliable, and easy to use. OTOflex 100 uses technologies which are highly effective for clinical and screening purposes. Tympanometry and Acoustic Reflex measurements measure the mechanical response of the middle ear and form a basis for evaluating whether the related physiological structures are functioning correctly or not. The OTOflex 100 probe is extremely lightweight (only 4.5 grams), and comes with comfortable, easy to insert eartips. This makes it ideal for use with children and adults. OTOflex 100 can be configured for a wide variety of tests, and it can be operated entirely manually or programmed for the user’s own combination of manual and automatic operation. In user-programmable tests the user can select the default parameters of a particular test, and combine tests to form a sequence of preset tests.

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Introduction About this manual

1.3.2

The Immittance Module

The Immittance Module is intended for clinical, diagnostic and screening tympanometry and reflex measurements performed by audiologists, ENTs and other health care professionals.

1.4

About this manual This is your guide to using MADSEN OTOflex 100 and the OTOsuite Immittance Module. It also introduces you to the key features of the program by providing you with working scenarios for performing tests and viewing and printing test results. We recommend that you read this manual and make yourself familiar with the OTOflex 100 and how it operates with the OTOsuite Immittance Module so that you become familiar with the device before testing on a client. Note · If you are using the OTOsuite Immittance Module with NOAH, we recommend that you are familiar with the screens and functions provided in NOAH. We recommend that you make yourself familiar with the issues listed below: 1.4.1

Safety

This manual contains information and warnings which must be followed to ensure the safe performance of OTOflex 100. Warning · Local government rules and regulations, if applicable, should also be followed at all times. Safety information is stated where it is relevant, and general safety aspects are described in App. 1 Standards and safety - OTOflex 100 and the Immittance Module X 213. 1.4.2

Installation

• To install the new system, see 15 Installing MADSEN OTOflex 100 X 197. Installation of OTOsuite is described in detail in the OTOsuite User Manual. Connecting to OTOflex 100

• See the OTOsuite User Manual. Configuring the OTOsuite Immittance Module

• See 16 Configuring OTOsuite X 211. Basic OTOsuite functions

The basic OTOsuite functions are described in the OTOsuite User Manual.

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Introduction Typographical conventions

1.4.3

Descriptions and testing

If your new system is already installed, see • 2 Getting started with MADSEN OTOflex 100 and the OTOsuite Immittance Module X 15 • 4 Navigating in the OTOsuite Immittance Module X 31 • 7 Testing with MADSEN OTOflex 100 X 63 1.4.4

Preparing for testing

Before you receive the client and start the session of testing and explaining test results, your time is well spent preparing for the session. See 6 Preparing OTOflex 100 and the Immittance Module for testing X 47. 1.4.5

Printing

• For instructions on how to print OTOflex 100 results, see 9 Printing X 101. • For instructions on how to print from the PC, see 14 OTOflex 100 Service and Maintenance X 189. 1.4.6

Maintenance and cleaning

For instructions on how and when to clean OTOflex 100, please see the OTOflex 100 Guide. We recommend that you take particular note of the cleaning and maintenance instructions. Failure to use and maintain the OTOflex 100 correctly may void your warranty.

1.5

Typographical conventions The use of WARNING, CAUTION and NOTE

For safety reasons and appropriate use of OTOflex 100, the Guide contains WARNINGS, CAUTIONS and NOTES, which you should read carefully. Warning · indicates that there is risk of danger to persons and/or device. Caution · indicates that there is risk of damage to the device. Note · indicates that you should take special notice. 1.5.1

Navigation

Menus, icons and functions to select are shown in bold type, as for instance in: • Click the Set options icon on the toolbar or select Tools > Options.

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2

Getting started with MADSEN OTOflex 100 and the OTOsuite Immittance Module

2.1

Unpacking 1. Inspect the package and its contents for possible visual damage. 2. Check with the packing list to make sure that you have received all necessary parts and accessories. If your package is incomplete, contact your supplier.

2.2

Installation 1. Install OTOsuite from the OTOsuite Installation DVD. See the OTOsuite User Manual. 2. Install OTOflex 100 as described in 15 Installing MADSEN OTOflex 100 X 197.

2.3

Starting up OTOflex 100 1. Starting up OTOsuite is described in the OTOsuite User Manual. 2. To switch on OTOflex 100 press the On/Off key.

On/Off Press & hold to switch on/off.

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Getting started with MADSEN OTOflex 100 and the OTOsuite Immittance Module Starting up OTOflex 100

Handling Probe

To operate OTOflex 100, hold it with one hand (left or right). Use your thumb to press the keys on the keypad and turn the scroll wheel. Switching on

Probe plug

Screen

Keypad

Device colour code

To switch on OTOflex 100, press and hold the On/Off key on the keypad until the start-up screen appears. Switching off

To switch off OTOflex 100, press and hold the On/Off key on the keypad until the message “Power Off ” appears.

When you have installed OTOflex 100, there are a number of settings you can customise for your use. See 12.2.4 Device settings X 141. • • • •

Check the specific device settings. If required, adjust the altitude setting. Set up the user(s) who will be using OTOflex 100. See 6.3.6 Users X 56 Check the default test settings to acquaint yourself with the various settings. See 12.1 Test settings X 131. • If required, create new test settings to suit your methods of testing. 2.3.1

Language setting

If the language setting in your OTOflex 100 has not been set to your local language from the factory, select the appropriate language: 1. Switch on your OTOflex 100. – If the “Patient & User” screen appears, press the softkey Return to previous to go to the Tympanometry test screen. menu – If the “Load Settings” screen appears (depending on setting in Menu > Procedure Options > ‘Settings’ prompt), press the left softkey Cancel to go to the Tympanometry test screen.

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Getting started with MADSEN OTOflex 100 and the OTOsuite Immittance Module Starting up the Immittance Module

2. With the cursor highlighting the Menu icon to activate the Menu.

, press Select

3. Use the Scroll Wheel to scroll to Advanced.. and press Select 4. Scroll to Device Settings.. and press Select 5. Scroll to Localization.. and press Select 6. With Language highlighted, press Select

on the keypad .

.

. to access the language options.

7. Scroll to the language of your choice and press Select . to go to the Tympanometry test 8. Press the softkey Return to test screen screen.

2.4

Starting up the Immittance Module Starting the Immittance Module depends on the setup of the program. 1. Switch on OTOflex 100, if you wish to test patients or transfer test results. 2. Follow the instructions in the OTOsuite User Manual. – Select or create a client in OTOsuite. – Select the test type. – Activate the Control Panel. – Select test ear.

2.5

Immittance Module features General features

Depending on the configuration of OTOflex 100 and the Immittance Module, you can • handle patient lists, • view and print test results, • view the progression of a range of tests online, • view historic tympanometry results from NOAH or XML, • view online tympanometry results during testing, • perform “over the rim” testing, using the audiometer as a handy control panel while you follow stimulus settings and test progress on your PC display, • plan patients for offline testing, • upload test results from offline tests. The basic Immittance Module functions are described in 4 Navigating in the OTOsuite Immittance Module X 31.

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Getting started with MADSEN OTOflex 100 and the OTOsuite Immittance Module Immittance Module features

Preparing for testing

Before you receive the client and start the session of testing and explaining test results, your time is well spent preparing for the session. • Test preparations are described in 6 Preparing OTOflex 100 and the Immittance Module for testing X 47.

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3

OTOflex 100 views and main description

3.1

Handling and switching on OTOflex 100 Handling Probe

To operate OTOflex 100, hold it with one hand (left or right). Use your thumb to press the keys on the keypad and turn the scroll wheel. Switching on

Probe plug

Screen

Keypad

Device colour code

3.1.1

To switch on OTOflex 100, press and hold the On/Off key on the keypad until the start-up screen appears. Switching off

To switch off OTOflex 100, press and hold the On/Off key on the keypad until the message “Power Off ” appears.

Keypad main functions

To operate OTOflex 100 hand-held, hold it with one hand (left or right). Use your thumb to press the keys on the keypad and turn the scroll wheel. You can access most of the functions available in OTOflex 100 via the Menu, or by pressing one or more keys and softkeys.

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OTOflex 100 views and main description Handling and switching on OTOflex 100

Left softkey

Right softkey

On/Off Press & hold Press & hold to switch on/off. Press to toggle between test modes

Ear Selector Pressure release

Scroll wheel Scroll to highlight item Change intensity level Scroll to value setting Scroll between test types

Select key Select highlighted item. Toggle value settings Press & hold to activate: –Test Selector – Character Select in text editor mode

Scroll wheel

Turn the scroll wheel to shift the focus on the screen or change values: • Scroll up Turn counter-clockwise to scroll up. Moves the focus up or to the left, or decreases a selected value • Scroll down Turn clockwise to scroll down Moves the focus down or to the right, or increases a selected value • Select Press and hold to activate the Test Selector (see 3.2.2 Test Selector mode X 25) • Menu Press to access the Menu • Activate item Press to activate the selected item Additional scroll sheel modes Test Selector mode

Scroll between test types (3.2.2 Test Selector mode X 25) Text Editor mode

Scroll to select characters (3.2.3 The Text Editor X 27)

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