Otometrics Aurical Hit Manual de usuario

AURICALHIT and the

OTOsuite HITModule

Reference Manual

Doc. No. 7-50-1150-EN/06

Part No. 7-50-11500-EN

are registered trademarks of GNOtometricsA/S in the U.S.A. and/or other countries.

Version release date

2017-03-12 (153432)

Technical support

Please contact your supplier.

Otometrics - AURICALHIT

Table of Contents

1 Introduction 5

1.1 Intended Use 5

1.2 Typographical conventions 6

1.2.1 Navigating this manual 6

2 AURICALHIT 7

2.1 Unpacking AURICALHIT 7

2.2 Installation 7

2.2.1 Connecting AURICALHIT 7

2.2.2 Initial calibration 7

2.3 The test chamber 7

2.3.1 Reference microphone 9

2.3.2 BTE adapter tube 9

2.3.3 The coupler assembly 9

2.3.4 Battery simulator 11

2.3.5 Cable groove 11

2.3.6 Elevation plate 11

2.3.7 Coupler microphone sockets 12

2.3.8 Sound absorbing foam lining 12

2.3.9 Main loudspeaker 12

2.3.10 Rear loudspeaker 12

2.3.11 The AURICALHIT lid 12

2.3.12 Telecoils 12

2.3.13 The AURICALHIT handle 13

2.4 The Accessory Box 14

3 Testing hearing instruments 15

3.1 Calibrating the reference microphone 15

3.2 Positioning the hearing instrument for testing 16

3.2.1 General guidelines for positioning the hearing instrument 16

3.2.2 Using the battery simulator 18

3.2.3 Coupler adapters 19

3.3 Traditional BTE hearing instruments 20

3.3.1 With BTE adapter tube 20

3.4 Thin-tube hearing instruments 21

3.4.1 Using the HA-1 ITE, RIE, thin-tube adapter 21

3.5 ITE hearing instruments 22

3.6 Telecoil testing 24

3.7 Hearing instruments with wireless transmitters (e.g. FM) 24

3.8 Body-worn hearing instruments 26

3.9 Testing the hearing instrument with OTOsuite HIT 26

3.9.1 How to perform a standard test 26

3.9.2 How to test the directional microphone 27

4 HIT FreeStyle testing 29

4.1 Navigating in HIT FreeStyle 29

5 Cleaning, Repair and Calibration 32

5.1 Cleaning 32

5.1.1 Cleaning the device 32

Otometrics - AURICALHIT 3

5.1.2 Cleaning accessories 32

5.2 Service and repair 33

5.2.1 Replacing/updating the reference microphone 33

5.2.2 Replacing/updating the coupler microphone 33

5.2.3 Replacing floor lining 33

5.3 Calibration 34

5.3.1 How often is calibration necessary? 34

5.3.2 Environment Report 34

Procedure 34

5.3.3 Calibrating the coupler microphone 36

5.4 The battery simulator 37

6 Troubleshooting 38

7 Standards and Safety 39

7.1 AURICALHIT 39

7.2 Warning notes 39

7.3 The OTOsuite HIT Module 40

7.4 Manufacturer 41

7.4.1 Responsibility of the manufacturer 41

8 Technical specifications 42

Index 45

4 Otometrics - AURICALHIT

1 Introduction

AURICALHIT is designed for Hearing Instrument Testing and Coupler-Based Fitting.

AURICALHIT connects via USB to a computer running the OTOsuite software.

• With the OTOsuite HITModule you can perform traditional hearing instru-

ment testing according to either the ANSI or IEC test protocols, and obtain a

consistent picture of every hearing instrument, regardless of manufacturer or

type.

• With the OTOsuite PMM Module you can perform Probe Microphone Meas-

urements in a coupler for pre-programming and pre-fitting hearing instruments

without the client being present.

Hearing instruments

It is easy to position hearing instruments on snap-on couplers inside the AURICALHIT test chamber and it is easy to access

the hearing instruments in the test chamber during test without disturbing the test setup.

The battery pill types are recognized automatically, and the reference microphone ensures reliable positioning in the test

chamber.

Directionality

The Directionality feature provides for fast measurement of directionality and quality check of the hearing instruments.

RECD

Real ear response can be recorded without having AURICALHIT at hand, and coupler-based fitting can be performed by

itself without using AURICALFreeFit.

Coupler-based fitting using RECD is a "coupler" mode as part of the PMM functionality for providing simple hearing instru-

ment fitting. Coupler-based fitting is described in the AURICALFreeFit and the Probe Microphone Measurements User

Manual.

AURICALHIT supports stored coupler values which drastically reduces the need for measuring coupler responses.

NOAH integration

AURICALHIT can operate either as a stand-alone system, or under the NOAH software, which was developed by HIMSA as a

common software platform for programming and fitting hearing instruments. NOAH integrates client records, audiological

data and the dedicated fitting modules from various hearing instrument manufacturers.

1.1 Intended Use

AURICALHIT is intended for testing purposes by audiologists, hearing instrument dispensers, and other health care pro-

fessionals in testing programmable hearing instruments.

Required qualifications

It is assumed that the user has a basic knowledge of how to compare the results of the hearing instrument tests with the

specifications from the hearing instrument manufacturer and to detect typical malfunctions of the hearing instrument.

Otometrics - AURICALHIT 5

1.2 Typographical conventions

The use of Warning, Caution and Note

To draw your attention to information regarding safe and appropriate use of the device or software, the manual uses pre-

cautionary statements as follows:

Warning •Indicates that there is a risk of death or serious injury to the user or patient.

Caution •Indicates that there is a risk of injury to the user or patient or risk of damage to data or the device.

Note •Indicates that you should take special notice.

1.2.1 Navigating this manual

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.

6 Otometrics - AURICALHIT

1 Introduction

2 AURICALHIT

2.1 Unpacking AURICALHIT

1. Unpack the device carefully.

When you unpack the device and accessories, it is a good idea to keep the packing material in which they were

delivered. If you need to send the device in for service, the original packing material will protect against damage dur-

ing transport, etc.

2. Visually inspect the equipment for possible damage.

If damage has occurred, do not put the device into operation. Contact your local distributor for assistance.

3. Check with the packing list to make sure that you have received all necessary parts and accessories. If your package is

incomplete, contact your local distributor.

2.2 Installation

• Place AURICALHIT on an absolutely stable surface.

• In order to exclude ambient noise and to comply with the ANSI S3.22 standard, place the system in a moderately

quiet room.

2.2.1 Connecting AURICALHIT

1. Install OTOsuite on the PC. See the OTOsuite Installation Manual.

2. Connect the USB cable from the USB socket under AURICALHIT to a USB socket in the PC. AURICALHIT is powered by

the PC.

AURICALHIT is selected automatically in OTOsuite.

If you wish to use a demo device, select Tools >Configuration Wizard. Click Configure next to AURICALHIT, and

select Demo device.

2.2.2 Initial calibration

When you have connected AURICALHIT to the PC, you must perform an initial calibration of the reference microphone.

See Calibrating the reference microphone ►15.

Calibration procedures and general recommendations about calibration are described in Calibration ►34.

2.3 The test chamber

Using AURICALHIT and positioning hearing instruments in the test chamber are described in Testing hearing instruments

►15.

Otometrics - AURICALHIT 7

2 AURICALHIT

A. Reference microphone ►9

B. BTE adapter tube ►9

C. The coupler assembly ►9

D. Battery simulator ►11

E. Cable groove ►11

F. Elevation plate ►11

G. Coupler microphone sockets ►12

H. Sound absorbing foam lining ►12

I. Main loudspeaker ►12

J. Rear loudspeaker ►12

K. The AURICALHIT lid ►12

L. Telecoils ►12

8 Otometrics - AURICALHIT

2 AURICALHIT

The AURICALHIT handle ►13

(some models only)

The Accessory Box ►14

2.3.1 Reference microphone

The position of the reference microphone is easy to adjust. Make sure that the reference microphone does not come into

contact with AURICALHIT when you close the lid so that the microphone is not pushed out of place when you close the

lid for testing.

2.3.2 BTE adapter tube

The BTE adapter tube can be bent to correctly position the microphone or microphones of

the hearing instrument in relation to the main loudspeaker. It is used for verification of

BTE hearing instruments as well as for measuring the coupler portion of RECD.

The adapter tube is compliant with ANSI and IEC requirements.

2.3.3 The coupler assembly

The coupler assembly consists of the following parts:

A. Coupler adapter

B. Coupler cavity

C. Coupler microphone

Coupler adapter

The Accessory Box provides a range of adapters for easy positioning of different types of hearing instruments.

Otometrics - AURICALHIT 9

2 AURICALHIT

Coupler cavity

During tests in the test chamber, the hearing instrument is connected to a 2cc coupler cavity manufactured in accordance

with the ANSI standard. Alternatively, you can use an ear simulator.

Note •The ear simulator is not ANSI or IEC compliant, and is not recommended for RECD measurements.

You can use the Coupler Type icons in the toolbar to toggle between 2cc coupler and ear sim-

ulator. The selected coupler type is saved with measurements for later reference.

Coupler microphone

The coupler microphone is located in a coupler bottom piece which must be attached to the coupler cavity.

You can use the coupler microphone either directly in AURICALHIT or in the Accessory Box.

The system automatically detects and activates the coupler microphone regardless of which setup you are using.

AURICALHIT

A. BTE testing - Low coupler position

B. ITE, RIE, thin-tube testing - High coupler position

The Accessory Box

Connect the mini-jack cable from the Accessory Box to the mini-jack socket under AURICALHIT, and insert the coupler

microphone in the microphone socket in the Accessory Box.

A. Wireless hearing instrument testing

10 Otometrics - AURICALHIT

2 AURICALHIT

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