Frye 7000 User Manual

Download

FONIX

7000

Hearing Aid Test System

Operator’s Manual

Version 1.51

Oct. 23, 2006

Contents

Chapter 1: Introduction & Setup

1.1 History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Basic Test Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.4 Accessories

1.4.1 Standard Accessories

1.4.2 Real-Ear Accessories

1.4.3 Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5 Layout, Controls, and Safety

1.5.1 Front Panel Layout

1.5.2 Rear Panel Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5.3 Safety

1.6 Setup

1.6.1 Unpacking the FONIX 7000

1.6.2 Locating and arranging the 7000 test system

1.6.3 Connecting the Main Module & Components

1.6.4 Connecting the Real-Ear Equipment

1.6.5 Powering up the 7000 test system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.7.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.7.2 Care & Maintenance of your M1950E Coupler Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.7.3 Locating the serial number and software version

1.7.4 Contacting the Factory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.7.5 Warranty

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Chapter 2: General Operation

2.1 Operation of buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.1.1 Using the function keys

2.1.2 Navigating through the screens

2.1.3 Using the pop-up help windows

2.1.4 Using the local menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1.5 Using the EXIT and RESET buttons

2.1.6 Using the remaining buttons

2.2 Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2.1 Saving and loading default settings

2.2.2 Setting the date and time

2.2.3 Setting the user mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2.4 Explaining the settings

2.3 Source Types

2.3.1 Understanding Pure-tone Signals

2.3.1.1 Pure-tone settings

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2.3.1.2 Noise reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

2.3.1.3 Delay times

2.3.1.4 Harmonic distortion

2.3.1.5 Pure-tone Filter

2.3.2 Understanding Composite Signals

2.3.2.1 Noise reduction

2.3.2.2 Intermodulation distortion

2.3.2.3 Composite filter

2.3.2.4 Composite type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3.2.5 Composite source levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3.2.6 Digital Speech technical details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Printing

2.4.1 Choosing a printer

2.4.2 Adding a label

2.4.3 Using the internal printer

2.4.4 Loading the thermal paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4.5 Unloading a partial roll of paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4.6 Using an external printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4.7 Putting multiple screens on a page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5 Display & Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5.1 Viewing the Curve Characteristics Box

2.5.2 Viewing numerical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.6 Computer Connection

2.7 Remote Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.8 Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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45 48 48 49 49

52 53

Chapter 3: Basic Sound Chamber Tests

3.1 The Coupler Screen Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

3.1.1 Viewing a Pure-tone Display

3.1.2 Viewing a Composite Display

3.2 The Leveling Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.1 Leveling the sound chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.2 Removing the leveling of the sound chamber: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3 Saving the leveling information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Hearing Aid Setup

3.3.1 Explaining the Coupler Types

3.3.2 In-The-Ear (ITE) and Canal Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.3 Behind-The-Ear (BTE) Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.4 Open-Ear Hearing Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.5 Body Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.6 Eyeglass Aids

3.3.7 Wireless CROS and BICROS Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.8 Wire-Type CROS and BICROS aids

3.4 Basic Measurements

3.4.1 Signal Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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3.4.2 Running a Test Curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

3.4.3 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.4 Deleting measurements and settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.5 Running a Single Frequency Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.6 Running a Three-Frequency Average . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.7 Measuring Harmonic Distortion

3.4.8 Intermodulation Distortion

3.4.9 Battery Current Drain

3.4.10 Telecoil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.11 Measuring directionality

3.5 Digital hearing aids

3.5.1 Using Digital Speech

3.5.2 Changing the Speech Shape

3.5.3 Testing with Bias Signals

3.5.4 Checking Noise Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5.5 Understanding Terminology

3.6 CIC Feature

3.7 Occluded Ear Simulator Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8 Automatic Testing—Loading & Saving Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8.1 Setting up a test sequence

3.8.2 Loading a Saved Test Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8.3 Testing in Fully-Automatic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8.4 Testing in Semi-Automatic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.9 Complete List of Menu Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

70 72 73 73

89 91

93 93 93 94

Chapter 4: Advanced Coupler Tests

4.1 Enhanced DSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

4.1.1 Digital Processing Delay

4.1.2 Signal Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1.3 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Battery Current Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

4.2.1 Static Test (Estimated Battery Life)

4.2.2 mA/Freq

4.2.3 mA/Ampl

4.3 Coupler I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.4 Attack & Release

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

98 99

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Chapter 5: Automated Test Sequences

5.1 ANSI S3.22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

5.1.1 Leveling for ANSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5.1.2 Setting up the hearing aid for ANSI

5.1.3 Setting up the analyzer for ANSI

5.1.4 Running an ANSI 96 or an ANSI 03 Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.1.5 Running an ANSI 87 Test

5.1.6 Viewing ANSI Results

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

5.1.7 Testing Digital Hearing Aids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

5.1.8 Viewing ANSI measurements in the Coupler screen

5.1.9 Explaining the Menu Settings

5.2 ANSI S3.42-1992 (ANSI 92

5.2.1 Understanding ANSI 92

5.2.2 Running ANSI 92.

5.2.3 Viewing ANSI 92 Results

5.2.4 Viewing ANSI measurements in the Coupler screen

5.2.5 Explaining the Menu Settings

5.3 IEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

5.3.1 Setting up for IEC

5.3.2 Running IEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.3.3 Viewing IEC Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.3.4 Viewing IEC measurements in the Coupler screen

5.3.5 Understanding the Menu Settings

5.4 JIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.4.1 Running JIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.4.2 Viewing JIS Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.4.3 Viewing JIS measurements in the Coupler screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.4.4 Understanding the menu settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Chapter 6: Real-Ear Measurements

6.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

6.1.1 Understanding the Real-Ear Screens

6.1.2 Navigating through the Real-Ear Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.2 Real-Ear Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.2.1 Placing the Sound Field Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

6.2.2 Placing the earhook and reference microphone

6.2.3 Inserting the probe tube

6.2.4 Leveling the Sound Field Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.2.5 Setting up Body Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.3 Real-Ear Targets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.3.1 Entering an Audiogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.3.2 Deleting Audiometric Information

6.3.3 Creating a Target

6.3.4 Entering Bone Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

6.3.5 Performing an RECD measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.3.6 Modifying a Target

6.3.7 Entering an REDD transform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Real-Ear Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

6.4

6.4.1 Measuring in the Insertion Gain screen

6.4.2 Measuring in the Real-ear SPL screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6.4.3 Measuring the Unaided Response (REUG/REUR)

6.4.4 Measuring the Aided Response (REAG/REAR)

6.4.5 Working with prescription tar

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

gets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

1 1

3 3 4 5 5

8 8 8

3 5 5 5

8 8

6.4.6 Using Semi-Auto and Fully-Auto Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

6.4.7 Testing with a single tone or three frequency average . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.4.8 Using the reference microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

9 Viewing numerical curve data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

6.4.

6.4.10 Deleting and un-displaying measurements

6.4.11 Using Smoothing in measurement curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

6.4.12 Using Output Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.4.13 Measuring the occlusion effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.5 Digital Hearing Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.5.1 Using Digital Speech

6.5.2 Choosing a speech weighting

6.5.3 Testing the digital filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.5.4 Testing digital noise suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.6 Directional Hearing Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.6.1 Using the insertion gain technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Determining the “null” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162

6.6.2

6.7 Open Ear Hearing Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.8 Visible Speech . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

6.8.1 Performing Visible Speech measurement

6.8.2 Viewing the Real-time Visible Speech Display

6.8.3 Viewing Completed Test Results

6.8.4 Measuring multiple envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

6.9 CROS/BICROS Aids

6.9.1 Measuring the Head-Baffle Effect

6.9.2 Measuring the Overcoming of the Head-Baffle Effect

6.9.2.1 CROS

6.9.2.2 BI-CROS

6.9.3 Measuring Overall Insertion Gain

6.9.3.1 CROS

6.9.3.2 BI-CROS

6.9.4 Measuring Insertion Loss to the “Good” Ear (CROS)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

1 2

4 6 6 7

8 9 0 0

2 3

Appendix A: Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Appendix B: Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Appendix C: Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Appendix D: The FONIX CIC Feature

Appendix E: Fitting Formula Tables

Appendix F: Probe SPL Mode Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Appendix G: Glossary of Terms

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185

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Chapter 1 1

Introduction & Setup

Welcome to the newest innovation in hearing aid testing! The 7000 Test System is the long-awaited successor to the 6500-CX, the analyzer that arguably has become the standard by which all other hearing aid test equipment is measured.

The 7000 Test System has many design improvements, including a high-resolution color display, a flexible and easy-to-use interface, and built-in help screens. Throughout the design process of the 7000 Test System, the engineers at Frye Electronics have followed two important mantras: Flexibility and Usability. We wanted all the features of the existing 6500-CX system in a new package that was easier to use and easier to upgrade. We are confident that the 7000 Test System is a success on both counts

1.1 History

The 6500-CX has been one of the fastest and most accurate hearing aid analyzers in the industry. Since its introduction in 1985 at the International Audiology Congress in Prague, Czechoslovakia, it has evolved through three model num bers: the original 6500, the 6500-C with color, and the 6500-CX with a faster CPU. These hardware upgrades, and the software upgrades that went with them, kept the 6500 analyzer current as hearing aid technology evolved.

The original 6500 operator interface was originally designed around a set of tests that were needed at the time of its introduction. Linear and AGC hearing aids were tested for ANSI coupler performance, and real ear tests were done to check on insertion gain performance. Its Composite signal gave the industry the first real time, interactive frequency response measurement for both coupler and real ear tests. This enabled an order of magnitude increase in the collec tion speed of response data. This feature has been particularly useful in real ear tests, where artifacts caused by ambient noise in the acoustical environment are a factor.

The 6500 evolved to keep pace with the technology of the hearing aid industry. The 6500-C with color video came in 1992. The CX version with its faster CPU was introduced in 1994. Functions such as Multi-curve, Target 2-cc, ANSI 92, CIC, Digital-Speech-in-Noise, the real-ear SPL screen, and Enhanced DSP were gradually introduced, making the 6500-CX analyzer more powerful with each release.

The number of tests on the 6500-CX grew, but the operator interface remained much the same. To accommodate new functions, 6500 front panel buttons were programmed with functions different from their original purpose and labeling. While the help messages on the screen allowed the first time user to operate the instrument, it was obvious that improvements could be made. Some of these

2 FONIX 7000 Hearing Aid Analyzer

were implemented and tested on other Frye instruments. The FP40 analyzer introduced “function buttons” that adapt to handle the specific needs of each test screen and sequence. The FP35 analyzer added help screens and local menus to make the analyzer more intuitive and easier to use.

The lessons learned in the FP40 and FP35 analyzers have been incorporated into the 7000 Test System. It is hoped that these improvements will make the 7000 flexible enough to adapt to any new test procedures as they become needed with the changing testing requirements of the hearing aid industry

1.2 Basic Test Functions

The basic 7000 can perform the following coupler tests:

• Pure-tone signal measurements

• Composite and Digital Speech signal measurements

• Phase measures for binaural hearing aid pairs

• Group delay (processing delay) measurement of digital hearing aids

• Battery Current as a function of amplitude and frequency

For both composite and pure tone measurements, the following are possible:

An additional function that comes standard with the 7000 is RS232 communication with an external personal computer. This allows remote operation of the analyzer from the computer, and lets you save test results onto your computer’s hard drive. Firmware upgrades to the 7000 Test System can also be performed though the computer.

1.3 Options

The 7000 test system has the following software (and hardware) options available:

Real-Ear Option

• I/O Curves

• Attack and Release

• Special CIC hearing aid coupler measurements

• Behind the ear (BTE), In the ear (ITE), in the canal (ITC), Open ear, and body hearing aid measurements

• Choice of either IEC 60118-7 or ANSI S3.22-2003/96/87/92 standard tests (All tests can be installed as options)

The 7000 test system can be ordered with the Real-Ear Option so that tests can be done on the hearing aid while it is in the client’s ear. These measurements are also commonly called “probe measurements” because they are performed

Introduction and Setup 3

with a probe microphone. Using real-ear measurements makes it possible to individualize the fitting of a hearing aid since a coupler measurement can sel dom tell the operator exactly how what sound is received by the client. Many factors affect the sound on its way to the ear drum. When measuring with a probe microphone, you will know what is happening in the “real-ear.”

ANSI Option

The ANSI Option gives the user access to the ANSI 03, ANSI 96, ANSI 87, and ANSI 92 test sequences. These perform measurements according to the ANSI S3.22 2003, ANSI S3.22 1996, ANSI S3.22-1987, and ANSI S3.42-1992 stan dards, respectively.

This option also includes the Telewand, which is used for performing ANSI 96 telecoil measurements.

IEC Option

The IEC Option gives the user access to the IEC test sequence, which performs measurements in accordance with the IEC 118-7, the performance part of the

IEC standard.

OES Option

The Occluded Ear Simulator (OES) Option includes the MZ-1, MZ-2, and MZ-3 couplers and corresponding correction factors meant to simulate the results of a real-ear simulator (Zwislocki) coupler when simulating occluded ear measure ments in the sound chamber. The results produced with the OES Option will not be an exact duplication of the results produced with a Zwislocki coupler.

VA CORFIG

The VA-CORFIG Option supplies a frequency response in the ANSI test sequence that includes correction factors that make the measurement closer to a real-ear response. These correction factors were developed by the United States

Veterans Administration.

4 FONIX 7000 Hearing Aid Analyzer

1.4 Accessories

The following are accessories that are standard and optional on your FONIX 7000 hearing aid analyzer.

1.4.1 Standard Accessories

The following accessories come standard with each 7000 test system.

Coupler Microphone—M1950E 14 mm pressure-type electret instru mentation microphone. Note: Older 7000 analyzers may use the M1750E microphone.

HA-1 2-cc Coupler Dimensions per ANSI S3.7 for testing in-the-ear aids, canal aids, and aids fit ted with earmolds.

HA-2, 2-cc Coupler Dimensions per ANSI S3.7 for testing behind-the-ear aids, eyeglass aids, and body aids.

Ear-Level Adapter (BTE) Snaps into the 1/4" (6.35 mm) diameter cavity of the HA-2 and MZ-2 couplers. Equipped with a 0.6" (15 mm) length of 0.076" (1.93 mm) ID tubing, the adapter allows ANSI S3.22 specified connection of an ear-level aid to the coupler.

Introduction and Setup 5

Microphone Adapter 14 mm to 1" (25.4) mm adapter for coupling the M1950E microphone and reference microphone to a 1-inch device such as a sound level calibra tor.

Test Chamber Cable Connects the main module to the test chamber.

Other Standard Accessories:

Thermal Paper Fun-Tak RS232 Cable Dummy Microphone (for testing to ANSI specifications) Sound Chamber Replacement Feet Operator’s Manual Maintenance Manual (upon request at time of purchase)

Battery Substitution Pills

Used to power hearing aids, measure battery drain, and estimate battery life. Standard sizes: 675/76 13 312 10A/230

6 FONIX 7000 Hearing Aid Analyzer

1.4.2 Real-Ear Accessories

When the Real-Ear Option is ordered, the following accessories are included.

Remote Module and Microphones The remote module allows the user to control the analyzer while remaining close to the patient. The probe and ref erence microphones, used for perform ing real-ear measurements, are plugged into this module.

Sound Field Speaker Produces the output for most real-ear measurements. The Real-Ear Option can be ordered with a floor stand, remote module shelf, or with a swing arm.

Loudspeaker Floor Stand The lightweight, sturdy floor stand is adjustable and has a low-profile tripod base.

Remote Module Shelf

The shelf fits directly on the floor stand, providing a stable, convenient platform for operating and storing the remote module. This is the default configuration.

Loudspeaker Swing Arm This swing arm may be substituted for the speaker floor stand & shelf. It is a convenient device that can be mounted to a wall or desktop. The four-piece arm swivels and extends along five different dimensions to allow precise placement and aiming of the loud speaker. Spring tension and friction keep the loudspeaker exactly where you put it.

Introduction and Setup 7

Monitor Headset Plugs into the remote module, and allows the user to listen to the signal being measured by the probe micro phone. Model of headset may differ from one shown.

Wedge-style Ear Hook

Standard Size. Holds probe and refer ence microphone during real-ear test ing.

Probe Tubes Used for performing real-ear measure ments. Probe tubes are not reusable.

8 FONIX 7000 Hearing Aid Analyzer

1.4.3 Optional Accessories

Infant/Child Headband Includes infant, child, and adult head bands, six bendable earhooks, and two

sets of “animal ears.”

6-cc Coupler Enables checking the response of stan dard audiometer headphones. It is designed around the NBS 9A coupler specifications.

MZ Couplers

MZ-3, MZ-2, and MZ-1 couplers are supplied with the OES Option.

CIC Coupler Non-standard (0.4 cc) coupler used for realistic testing of CIC hearing aids. This coupler is always used in con junction with the CIC software correc tion factors

Introduction and Setup 9

Open Ear Coupler Non-standard coupler used for realistic testing of open ear hearing aids.

#5 battery pill

Provides battery current measurements for many CIC hearing aids.

Also available: #41 battery pill AA

Sound Level Calibrator A portable, self-contained, field-type calibrator for calibrating the microphone amplifier. It operates on one nine-volt transistor battery. Use with 14 mm-to-1" adapter. Calibration is traceable to the U.S. National Institute of Standards and Technology. Conforms to ANSI @1.401984 and IEC 942: 1988.

10 FONIX 7000 Hearing Aid Analyzer

Sound Chamber Stand

A secure, steel-tube stand that improves sound isolation and brings the testing area of the test chamber to convenient table height. Color matches the electronics module.

Sound Chamber Spring Damper Factory-installed.or Assembly Kit. This spring assembly fits onto the back of the sound chamber, making it easier to open the sound chamber lid. Once the sound chamber is open past a cer tain point, the user can release the lid and let the spring open it the rest of the way. Great when performing repetitive coupler measurements.

FM Kit Facilitates coupler and real-ear tests of FM systems. The kit includes a telescoping floor stand with a test plat form and plenty of extra Fun-Tak and a 6-inch (15 cm) square foam pad for using the 2-cc coupler outside the test chamber.

Introduction and Setup 11

POWER

STANDBY

1.5 Layout, Controls, and Safety

This section describes the basic layout of the front and rear panel of the 7000 test system, and special information pertaining to safety regulations.

1.5.1 Front Panel Layout

The front panel of the 7000 test system consists of 8 function keys, 4 arrow keys, and 9 other keys with varying operations. Together, all of these keys are used to control all the operations of the 7000 test system. A wide internal ther mal printer is located to the right of the front panel. See Figure 1.5.1.

RECD Earphone Package

Consists of one ER3A earphone with a 1⁄4 inch plug, a 72 inch cable, an assortment of ear tips, a calibration certificate, and a lapel clip. This pack

age is suitable for performing an RECD measurement with the 7000 Test

System.

Figure 1.5.1—Front panel

FUNCTION KEYS:

The top row of buttons on the 7000 front panel consists of “function keys” labeled [F1] through [F8]. The function of these keys change from screen to screen, according to the need of the screen. There are three basic uses of the function keys:

12 FONIX 7000 Hearing Aid Analyzer

• To navigate from screen to screen

• To toggle a selection

• To pop-up up a selection menu

For a more complete description of the operation of the function keys, see Section 2.1.1.

[RESET]: Resets the analyzer and returns you to the opening screen.

Many settings, measurements, and test conditions are erased or returned to their default conditions with the push of this button. Use [EXIT] instead of [RESET] to avoid the loss of data.

[HELP]: Brings up a pop-up help window, which tells you what func-

tions can be performed in the current screen.

[MENU]: Opens a local menu, or the Default Settings menu.

[EXIT]: Exits from the current screen, leaving all settings, measure-

ments, and test conditions as is.

[LEVEL]: Levels the sound chamber or sound field speaker.

[FEED]: Advances the internal thermal paper feed.

[PRINT]: Prints current screen.

[STOP]: Stops testing.

[START]: Starts testing.

ARROW KEYS: The arrow keys perform different functions depending upon

the screen and previous buttons pushed. In a test situation, they adjust the source amplitude and frequency. If you press one of the function buttons to bring up a pop-up menu, they are used to scroll through the available options and make

selections.

LEDs: Power: When green, this LED indicates that the 7000 Test

System is powered on.

Standby: When green, this LED indicates that the screensaver

mode is engaged (screensaver not available at this time)

Introduction and Setup 13

FONIX 7000 Serial No. 1234

Made in Tigard, Oregon, USA by

Frye Electronics, Inc.

Frye Electronics products are protected by

U.S.

and/or foreign patents and/or patents pending

T630 mAL

1.5.2 Rear Panel Layout

The rear panel of the 7000 test system contains most of the external connections for the analyzer. See Figure 1.5.2 for a diagram of the back panel.

Figure 1.5.2—Back panel

1. PRINTER: Connects an external printer to the 7000 test system.

2. SPKR: Connects the sound field speaker for real-ear measurements.

3. EARPHONE: Connect a insert earphone to the analyzer for RECD measurements. A 50 ohm earphone should always be used, to avoid harm to the earphone.

4. SOUND

CHAMBER: Connects the main module to the sound chamber.

5. RS232: Connects the 7000 test system to a personal computer.

6. RS232 LEDs: The red LED indicates the analyzer is sending a poll. This will flash whether or not a computer is connected. The green LED indicates the analyzer is receiving a command from a connected computer.

7. MONITOR: Connects the main module to a video monitor.

8. GAIN: Adjusts the calibration of the M1950E microphone.

9. MICROPHONE: Connects the M1950E microphone.

10. SCOPE: Connects to an external scope for external measuring purposes.

14 FONIX 7000 Hearing Aid Analyzer

11. PROBE: Connects the main module to the remote module (used for real-ear measurements).

KEYBD: Not currently active.

AUX: Not currently active.

The following safety symbols can be found on the back of the 7000 hearing aid analyzer:

1.5.3 Safety

Safety Classification for IEC 60601-1

Type of protection against electric shock: Class I

Degree of protection against electric shock: Type B

Read the accompanying documents. Please read this manual

This symbol indicates that Frye Electronics, Inc. conforms to

Replace fuses only with the same type and rating.

Type B Equipment. The probe microphone and insert earphone are type B applied parts, according to IEC 60601-1.

before operating the 7000 test system. A separate maintenance manual exists for the 7000 test system. If you wish to obtain a maintenance manual, please contact Frye Electronics, Inc. or your Frye representative.

the Medical Device Directive 93/42/EEC. Any attached video monitor, external printer, or external computer should also have a CE mark in order for the 7000 test system to remain compliant.

Protection against harmful ingress of water: Ordinary

Mode of operation: Continuous

The 7000 does not require sterilization or disinfection.

Warning: This equipment is not suitable for use in the presence of flammable anaesthetic mixture with air or with oxygen or nitrous oxide.

Introduction and Setup 15

Connection of peripheral equipment to the 7000

Compliance with IEC 60601-1-1 Safety requirements for medical electrical sys tems must be determined on a case-by-case basis.

All electrical equipment attached to the 7000, such as video monitors, computer equipment, etc. must, at a minimum, meet one of the following conditions:

a. The equipment complies with IEC 60601-1

b. The equipment complies with relevant IEC and ISO safety standards and is

supplied from a medical grade isolation transformer.

c. The equipment complies with relevant IEC and ISO safety standards and is

kept at least 1.5 meters from the patient.

The allowable leakage currents of IEC 60601-1-1 must not be exceeded. IEC 60601-1-1 should be consulted when assembling such a system.

Electromagnetic compatibility

The 7000 complies with IEC 60601-1-2.

The 7000 generates and uses radio frequency energy. In some cases the 7000 could cause interference to radio or television reception. You can determine if the 7000 is the source of such interference by turning the unit off and on.

If you are experiencing interference caused by the 7000, you may be able to cor rect it by one or more of the following measures:

1. Relocate or reorient the receiving antenna.

2. Increase the distance between the 7000 and the receiver.

3. Connect the 7000 to a different outlet than the receiver.

In some cases radio transmitting devices, such as cellular telephones, may cause interference to the 7000. In this case try increasing the distance between the transmitter and the 7000.

Disposal of the 7000 and accessories

The 7000 and some of its accessories contain lead. At the end of its useful life, please recycle or dispose of the 7000 according to local regulations.

If you are located in the European Union, please report all safety-related con cerns to our authorized representative:

Siemens Hearing Instruments Ltd.

Alexandra House Newton Road Manor Royal Crawley West Sussex RH109TT ENGLAND

16 FONIX 7000 Hearing Aid Analyzer

Otherwise, please report all safety related concerns to the Frye factory:

Frye Electronics, Inc.

9826 SW Tigard St. Tigard, OR 97223 Ph: (503) 620-2722 or (800) 547-8209 Fax: (503) 639-0128 email: support @frye.com sales@frye.com

Frye Electronics, Inc. is a Registered Firm of British Standards Institution, and we conform to the ISO 13485 standard.

1.6 Setup

This section describes the unpacking and setup of the 7000 test system. A description of the front and back panels is also included.

1.6.1 Unpacking the FONIX 7000

Remove the FONIX 7000 test system from the shipping cartons. Store the shipping cartons in a dry place so that they can be used again in the event that the unit must be returned to the factory for repair or upgrade.

See Figure 1.6.1 for a picture of the 7000 test system and a labeling of its basic components.

Figure 1.6.1. Caption: The 7000 Test system.

Introduction and Setup 17

1.6.2 Locating and arranging the 7000 test system

Locate the 7000 test system in a moderately quiet area, such as a private office or laboratory. In order for test results to reliably conform to specifications, the ambient noise, mechanical vibrations, electrical or magnetic fields must not affect test results by more than 0.5 dB (ANSI S3.22). Low-noise acoustic condi tions, as found in sound treated rooms and booths, are recommended but not necessary.

Locate the main module near the sound chamber. The video monitor may be placed on top of the main module.

If your 7000 has the Real-ear Option, further consideration needs to be given to the placement of the sound field speaker. The speaker should be placed in a manner in which the sound will not reflect off walls, chairs, tables, or other objects. Such sound reflections could negatively affect test results.

1.6.3 Connecting the Main Module & Components

Connect the main module to the system components as follows (see Figure

1.6.3):

1. Connect the video monitor to the jack marked “Monitor” on the back of the main module. Tighten the screws on the connector to secure the connection.

2. Plug the M1950E microphone into the connector marked “Microphone” located on the back of the main module.

3. Connect the sound chamber cable into the plug marked “sound chamber” on the back of the main module. Plug the other end of the cable into the sound chamber. This cable provides all the connections necessary for operating the internal loudspeaker, telecoil, and battery voltage supply of the 7020 test chamber. Tighten the screws of the plug at each end of the cable to secure the connection.

4. Plug the power cord into the three-pronged jack on the rear panel of the main module. Plug the power cords of both the main module and the video monitor into an AC outlet. We recommend using a switchable multiple out let power strip. Any voltage between 100 and 240 VAC is acceptable, 50 or 60 Hz line frequency.

18 FONIX 7000 Hearing Aid Analyzer

PRINTER

SOUND CHAMBER

EARPHONE

SPKR

MONITOR

RS232

KEYBD

MICROPHONE

GAIN

SCOPEPROBE

FONIX 7000 Serial No. 1234

Manufactured in 2003

CALIBRATED

Frye Electronics, Inc.

800-547-8209 www

.frye.com

DATE CAL

DATE DUE

ATTENTION: Ground reliability can be achieved ONLY when equipment is connected to “HOSPITAL GRADE” receptacles.

For service refer to qualified

personnel only.

Consult accompanying documents.

ELECTRICAL RATING:

100–240

50-60 Hz .6A

Made in Tigard, Oregon, USA by Frye Electronics, Inc.

Frye Electronics products are protected by

U.S.

and/or foreign patents and/or patents pending

T630 mAL

Earphone

Speaker

External printer

(not provided)

Monitor

Headphones

Computer

(not provided)

Telecoil board

(optional

)

lewand (optional)

7020 Sound Chamber

Quik-Probe

remote modul

M1950E Microphone

Probe/Reference mics

Figure 1.6.3 —7000 test system setup

1.6.4 Connecting the Real-Ear Equipment

If you ordered the Real-Ear Option, connect the real-ear equipment as follows. See Figure 1.6.3.

1. Plug the remote module cable into the jack labeled “Probe” on the back of the main module. Tighten the connector screw to secure the connection.

2. Plug the round, 8-pin connector of the dual microphone cable into the top surface of the remote module where it is marked “PROBE MIC.”

3. Plug the monitor headset into the remote module by attaching the ¼” adapt er and plugging it into the jack marked “earphone,” if desired.

Introduction and Setup 19

4. Depending on whether you have a floor stand or a swing arm, either (1) Unfold and extend the floor stand to the desired height, about the level of a seated client’s ear, or (2) Mount the wall/desk bracket of the swing arm in a convenient location. Attach the loudspeaker to the stand or arm, using the threaded connection.

5. Plug the dual banana plug into the rear jacks of the loudspeaker. Then plug the other end of the cable into the main module where it is marked “SPKR.”

1.6.5 Powering up the 7000 test system

1. Turn on the electronics module by reaching back on the right side of the main module (while you are facing the front of the unit), and pressing the POWER switch. The green LED on the front panel, above the words “POWER” will turn on after a couple seconds.

2. Turn on the video monitor. See the video operator’s manual for instructions, if necessary.

The Opening screen of the 7000 test system will be displayed. It contains the FONIX logo, along with the software version, the serial number, and the avail able options. This information is important in identifying your equipment when

you communicate with the company about your FONIX 7000 test system.

1.7 Maintenance

In order to ensure accurate testing, we recommend yearly calibrations of your coupler microphone. For those units with the Real-ear Option, we also recom mend yearly calibration of the probe & reference microphones and the sound field speaker. These calibrations can be performed by any Frye distributor or by yourself with the aid of a sound level calibrator such as a Quest QC-10. Please see Appendix B for calibration instructions.

1.7.1 Cleaning

For your safety, disconnect the 7000 from mains power while cleaning. Wipe the 7000 with a slightly moist but not dripping cloth. Use plain water or water with mild dish washing detergent. Wipe away any detergent with a slightly moist cloth. Finally, use a soft dry cloth to eliminate any lingering moisture.

Never allow fluid to enter the 7000:

• enclosure

• power switch

• power connector

• electrical connectors

• front panel buttons

20 FONIX 7000 Hearing Aid Analyzer

The 7000 microphones should be wiped with a dry cloth. Excess moisture may damage the microphones.

Solvents and abrasives will cause permanent damage to the 7000.

1.7.2 Care & Maintenance of your M1950E Coupler Microphone

Microphones are perhaps the most delicate of FONIX products. They require care and concern when handled. At the risk of sounding negative, the following

is a list of the five microphone DON’Ts.

1. Don’t bend the microphone cord at the connection of the cord and the body!

This is perhaps the most common cause of microphone damage. The place

where the cord and the body of the microphone meet is the most fragile part of their connection. The less strain you put on this area, the longer your microphone will last.

2. Don’t hit the microphone against the sound chamber or any other object!

The microphone head is delicate and easily damaged. Hitting the micro

phone against anything will do you no good and the microphone much harm. Similarly, be careful not the drop the microphone on the floor.

3. Don’t pull the microphone from the coupler by the cord!

When removing the microphone from the coupler, grip the microphone

body, not the cord. Pulling on the cord damages the connection.

4. Don’t get Fun-Tak on the grill of the microphone!

Fun-tak that accumulates on the grill will fall into the microphone body and

onto the diaphragm which will damage the microphone.

5. Don’t touch the diaphragm of the microphone!

The diaphragm is located inside the grill of the microphone and is extremely

sensitive. If you need to take the grill off the microphone, please do so with extreme care, and be especially careful not to touch the diaphragm, as this will cause damage!

Overall, just be aware that your coupler microphone is a delicate instrument that needs to be treated with care and respect. If you do so, the two of you will

be rewarded with a long, happy relationship.

1.7.3 Locating the serial number and software version

When contacting the factory, it is very useful if you have your serial number and software version handy. This information will help us help you regarding repair, upgrade, and technical questions.

The serial number of your 7000 test system can be found on the back of the main module, just to the right of the power switch. See Figure 1.7.3A.

Introduction and Setup 21

Figure 1.7.3A—Serial number location

The software version of your 7000 test system can be found on the Opening screen. See Figure 1.7.3B.

Press [HELP] to open a help window with more detailed service information. This data may be requested if you call in with a repair-related question. Press [HELP] again to close the help window.

Figure 1.7.3B—Software version location

22 FONIX 7000 Hearing Aid Analyzer

1.7.4 Contacting the Factory

If you have any questions regarding your instrument, have your serial number and software version ready (see Section 1.5.3), and contact us at:

Mailing address: Shipping address:

Frye Electronics, Inc. Frye Electronics PO Box 23391 9826 SW Tigard St. Tigard OR 97281-3391 Tigard, OR 97223 USA USA

Phone: (800) 547-8209 or (503) 620-2722 Fax: (503) 639-0128

Email: sales@frye.com (sales questions) Support@frye.com (technical questions) Service@frye.com (repair questions)

1.7.5 Warranty

The 7000 test system and its accessories are guaranteed to be free of manufacturing defects that would prevent the product from meeting its specifications (given in Appendix A of this manual) for a period of one year from the date of purchase.

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Frye 7000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual