AURICAL HIT User Guide
Contents
1. NURICAL HIT AURICAL HIT and the OTOsuite HIT Module User Guide Doc No 7 50 1230 EN 02 Part No 7 50 12300 EN e CE otometrics Copyright notice No part of this documentation or program may be reproduced stored ina 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 2014 GN Otometrics A S Published in Denmark by GN Otometrics A S Denmark All information illustrations and specifications in this manual are based on the latest productinformation available atthe time of publication GN Otometrics A Sreserves the rightto make changes at any time without notice Version release date 2014 02 25 Technicalsupport Please contact yoursupplier Otometrics AURICAL HIT Table of Contents A o o 126s o eae hk i a A taal hes or 2 Unpacking AURIGAL MIT cussasas cima eco pss s tenias cases tar 3 Installation sa ciuda aa Eo 4 The test chamberi de e 5 Testing hearing instruments _ 02 ele eee ee eee ee ee ce ee eee eee eeees 6 Maintenance and Calibration _ 222 22222 e eee eee ee 7 Other references ue oh Biel ek een edad 8 Standards AAA A A eas eoeee 9 Operating environment Loc 10 Transport ANG storage toros do don i de boa eh dad a Dl DA ot ola Ral ea ah 11 Definition OT symbols eiii Val e s T2 Warning notes A ees ae ee NR 13 Manufactu2. repositioning the hear ing instrument between the individual tests e acoustic measurements e inductive telecoil measurements e directional microphone test Positioning the reference microphone Asa rule of thumb position the reference microphone as close as possible to the front microphone of the hearing instrument without actually touching it Maximum permitted distances are Vertically Y axis 8 mm above Sideways X axis 12 mm Back to front Z axis 3 mm Using the battery simulator 1 Select a battery simulator and insert it in the hearing instrument With AURICAL HIT you receive aset of 4 color coded battery simulators which are used to power the hearing instru ment They are also used as probes for measuring the power consumption Red 10A 230 Blue 675 Yellow 312 Green 13 2 Insert the minijack connector of the battery simulator in the bat tery simulator socket in the test chamber AURICAL HIT automatically detects the battery simulator Cautione When you have connected the battery simulator make sure that it does not touch other metal parts as this may short cir cuit the system Otometrics AURICAL HIT 5 Testing hearing instruments 5 4 Coupler adapters Adapters for use with the 2 cc coupler are snapped onto the coupler cavity e HA2 BTE To fix the hearing instrument on the adapter snap the adapter off the coupler cavity and attach the hearing instrument to the adapter out
3. the Measurements table This will start a sequence of selected tests 10 Make sure that you follow the on screen instructions 11 If you wish to redo an individual test click on the Start button next to the test 14 oTosuite FOR EVALUATION ONLY File Edit View Measurement Tools Reports Help us De EZ BL 2 F Navigator Control Panel A y ry Measurements ANSI 53 22 2003 dB SPL Frequency Response dB Gain gt Legend Description Value Unit la sa OSPL 90 Max dB SPL Ty _ OSPL 90 HFA desa sel n fs OSPL 90 500 Hz dB SPL OSPL 90 1600 Hz dB SPL FOG 50 HFA Gain dBGain 120 60 7 gt Foc 50 1600 Hz Gain dB Gain FOG 50 Max Gain dB Gain 110 50 RTS 60 Min Frequency F1 Hz 7 gt RTS 60 Max Frequency F3 He mo RTG 60 HFA Gain dB Gain THD 500 Hz 7 gt THD 800 Hz ig e THD 1600 Hz Mil Equivalent Input Noise dB SPL 80 20 y gt Battery Consumption mA 3 mM Attack Time 2000 Hz ms 70 10 ae Release Time 2000 Hz ms gt 1 0 2000 Hz Knee Point dB SPL j i Aol Telecoil at 31 6 mA m HFA dB SPL Ti Telecoil at 31 6 mA m ETLS dB IO Telecoil at 1mA m MASL de SPL 50 es I Directionality Average 0 s je 100 ik 10k Hz dB SPL I O at 2000 Hz 130 dB SPL Directionality Test 120 Directionality Adaptation 11
4. 0 z 0 seconds 100 10 Detected Battery Pill 312 Zinc Air 90 0 HI Type 80 n 10 HI Serial Number 50 60 70 80 90dB 5k Hz Ready No User Test loaded 21 03 2012 Ye otometrics If you wish to measure the Battery Consumption make sure that you connect the battery simulator If needed click the arrow buttons in the Measurements table to include the individual tests you wish to perform Otometrics AURICAL HIT 5 11 6 Maintenance and Calibration How to test the directional microphone Directionality measurements as described in the hearing instrument test standards cannot be performed with regular desk top test chambers such as AURICAL HIT Such measurements require large anechoic chambers Small test chambers always exhibit acoustic reflections that obscure the true directional behavior of the hearing instrument However in AURICAL HIT you can make a functional test of the directional microphone in a hearing instrument In this test the signal is first presented to the front of the hearing instrument and then to the back of the hearing instrument This isdone automatically when you start a Directional Test The signal used for this test is a flat soectrum Broad Band Noise band pass filtered between 750 Hz and 5 kHz and presented at 70 dB SPL The procedure 1 Positionthe hearing instrument as described in Traditional BTE hearing instruments 11 Thin tube hearing instru ments gt 12 and ITE hearing instrumen
5. Directive IEC 61010 1 Test standards ANSI S3 22 IEC 60118 7 EMC IEC 61326 1 Operating environment Operating environment Indoors Otometrics AURICAL HIT Operating temperature range Maximum relative humidity Altitude Warm up time 10 Transport and storage Temperature Air humidity 11 Definition of symbols 10 Transport and storage 15 to 35 2C 59 to 95 F Maximum relative humidity 80 for temperatures up to 312C 88 F decreasing linearly to 50 relative humidity at 40 2C 104 2P Up to 2 000 m 6 562 feet lt 15 min 152C to 552C 52F to 1312F 10 to 90 non condensing Electronic equipment covered by the Directive 2002 96 EC on waste electrical and electronic equipment WEEE All electrical and electronic products batteries and accumulators must be taken to separate collection at the end of their working life This requirement applies in the European Union Do not dispose of these products as unsorted municipal waste You can return your device and accessories to Otometrics or to any Otometrics supplier You can also con tact your local authorities for advice on disposal HEARING AID TESTER USB socket for connecting AURICAL HIT to a computer Socket for connecting external coupler microphone Otometrics AURICAL HIT 17 12 Warning notes 12 Warning notes Warninge For warning notes applying to AURICAL HIT when in use with AURICAL FreeFit see the warning notes
6. evice should be turned off before any connections are established To disconnect the device from the power supply pull the USB plug out of the PC or shut down the PC 11 We recommend that an annual calibration be performed on accessories containing microphones Furthermore we recommend that calibration be performed if the equipment has suffered any potential damage e g microphone dropped on the floor Note that calibration has been performed only on the microphones supplied If you wish to use other microphones for testing with the device please contact your local distributor first 12 To prevent cross infection use fresh acoustic putty when you test the next hearing instrument 13 For safety reasons accessories connected to the equipment s outlet fittings must be identical to the type supplied with the system 14 Unwanted noise may occur if the device is exposed to a strong radio field Such noise may interfere with the process oftesting or fitting a hearing instrument Many types of electrical devices e g mobile telephones may generate radio fields We recommend that the use of such devices in the vicinity of the device is restricted as much as possible Like wise we recommend that the device is not used in the vicinity of devices sensitive to electromagnetic fields 15 Changes or modifications not expressly approved by the manufacturer could void the user s authority to operate the equipment 16 The device can be disposed of a
7. gular calibration of the reference microphone Repair For any type of repair please contact your supplier For the sake of safety and in order not to void the warranty service and repair of electro medical equipment should be car ried out only by the equipment manufacturer or by service personnel at authorized workshops In case of any defects make a detailed description of the defect s and contact your supplier Do not use a defective device Otometrics AURICAL HIT 15 7 Other references 6 1 16 Cleaning There are no specific requirements to sterilization or disinfection of the device Cleaning the device Make sure that the device is kept clean and free of dust e Remove dust using a soft brush e Toclean the cabinet use a soft slightly damp cloth with a small amount of mild detergent on it Cautione Keep the unit away from liquids Do not allow moisture inside the unit Adapters If needed remove any acoustic putty residue and use an alcohol based wipe to clean the adapter Other references For more information see the following manuals on your product CD e AURICAL HIT and the OTOsuite HIT Module Reference Manual English only e AURICAL FreeFit and the Probe Microphone Measurements Module Reference Manual English only e OTOsuite SOftware User Manual See also the OTOsuite Installation Guide provided in the OTOsuite software DVD box Standards AURICAL HIT CE marked according to the Electrical Safety
8. ibed in the AURICAL FreeFit and the Probe Microphone Measurements User Manual 5 1 Calibrating the reference microphone 1 Launch OTOsuite and select the HIT module in the Navigation panel 2 Position the microphones in the center of the test chamber 3 Position the reference microphone 1 pointing straight down from above and centered 1 2 millimeters above the coupler measurement microphone 3 4 During calibration the microphones must have the exact same distance to the main loudspeaker 2 along the Z axis You can ensure this by looking at the test chamber from the side when you adjust the reference microphone pos ition for calibration 5 Close the lid 6 Select Tools gt AURICAL HIT Calibration gt Reference Microphone 7 Follow the on screen instructions Otometrics AURICAL HIT 9 5 Testing hearing instruments 5 2 5 3 10 Positioning the hearing instrument for testing How you position the hearing instrument for testing in the test chamber depends on the type of hearing instrument or device you wish to test Regardless of form factor the type of hearing instrument the only two important things to remember are e Aligning directional microphones along the loudspeaker axis e Positioning the reference microphone as close as possible to the front microphone ofthe hearing instrument without touching it You can position the hearing instrument to perform all standard hearing instrument tests without
9. in the AURICAL FreeFit Safety section in the AURICAL FreeFit documentation 1 The device is intended for testing purposes by audiologists hearing instrument dispensers and other health care pro fessionals in testing programmable hearing instruments 2 Accidental damage and incorrect handling can have a negative effect on the functionality of the device Contact your supplier for advice 3 For the sake of safety and in order not to void the warranty service and repair of electro medical equipment should be carried out only by the equipment manufacturer or by service personnel at authorized workshops In case of any defects make adetailed description of the defect s and contact your supplier Do not use a defective device 4 Itis recommended to install the unit in an environment that minimizes the amount of environmental noise 5 Itis recommended to install the unit in an environment that minimizes the amount of static electricity For example anti static carpeting is recommended 6 Donot store or operate the device at temperatures and humidity exceeding those stated in Technical Specifications Transport and storage gt 17 7 Keepthe unit away from liquids Do not allow moisture inside the unit 8 Donot use the instrument in the presence of flammable anesthetics gases 9 No parts may be eaten burnt or in any way used for purposes other than the applications defined in the Intended Use section of this manual 10 The d
10. le groove This prevents the hearing instrument from being pulled out of place when you close the lid for testing 4 3 Elevation plate Use the elevation plate to facilitate positioning of wireless transmitters and body worn hearing instruments at alevel where the microphone or microphones are approximately centered in relation to the loudspeaker 4 4 The AURICAL HIT handle Note This only applies to models equipped with a carrying handle The handle is designed for carrying AURICAL HIT DAD Cautione If you carry AURICAL HIT by its handle do not use your other hand to support it by the lid as this may cause the lid to open and squeeze your fingers 8 Otometrics AURICAL HIT 5 Testing hearing instruments 5 Testing hearing instruments Testing a hearing instrument involves the following main tasks 1 Calibrating the reference microphone Otometrics recommends that you calibrate the reference microphone daily or weekly Set up the interval to suit your pur poses See Calibrating the reference microphone 9 2 Positioning the hearing instrument General instructions are described in e Traditional BTE hearing instruments 11 e Thin tube hearing instruments 12 e ITE hearing instruments 13 3 Testing When you have positioned the hearing instrument correctly you can test it using the OTOsuite HIT module as described in How to perform a standard test 14 or you can perform coupler based fitting as descr
11. rer ol cacas e a aa Otometrics AURICAL HIT 15 16 16 16 17 17 18 19 1 Introduction 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 e 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 e With the OTOsuite PMM Module you can perform Probe Microphone Meas urementsin a coupler for pre programming and pre fitting hearing instruments without the client being present 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 1 2 Typographical conventions The use of Warning Caution and Note For safety reasons and appropriate use of the device and or software the manual contains Warnings Cautions and Notes These headings are used as follows Warning Indicates that there is risk of death or serious injury to the
12. ribed in Testing hearing instruments gt 9 Otometrics AURICAL HIT 5 4 The test chamber A The coupler assembly 6 B Elevation plate gt 8 C Cable groove gt 8 The AURICAL HIT handle gt 8 some models only 4 1 The coupler assembly The coupler assembly consists ofthe following parts A Coupler adapter B 2cc coupler cavity C Coupler microphone 6 Otometrics AURICAL HIT 4 The test chamber Coupler adapter The Accessory Box provides a range of adapters for easy positioning of different types of hearing instruments 2 cc coupler cavity During tests in the test chamber the hearing instrument is connected to a 2 cc coupler cavity manufactured in accordance with the ANSI standard Coupler microphone The coupler microphone is located in acoupler bottom piece which must be attached to the 2 cc coupler cavity You can use the coupler microphone either directly in AURICAL HIT orin the Accessory Box In AURICAL HIT A BTE testing Low coupler position B ITE RIE thin tube testing High coupler position Inthe 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 Otometrics AURICAL HIT 7 4 The test chamber 4 2 Cable groove Wrap the programming cable of the hearing instrument once around the cab
13. s normal electronic waste according to local regulations 17 Use only the power supply specified in Technical Specifications in the AURICAL HIT Reference Manual 18 Otometrics AURICAL HIT 13 Manufacturer When assembling a system the person carrying out the assembly must take into account that other con nected equipment which does not comply with the same safety requirements as this product e g PC and or printer may lead to a reduction in the overall safety level of the system The equipment must com ply with IEC 60950 13 Manufacturer GN Otometrics A S 9 Hoerskaetten DK 2630 Taastrup Denmark g 4545 7555 55 45 45 7555 59 www otometrics com 13 1 Responsibility of the manufacturer The manufacturer is to be considered responsible for effects on safety reliability and performance of the equipment only if e All assembly operations extensions re adjustments modifications or repairs are carried out by the equipment man ufacturer or personnel authorized by the manufacturer e The electrical installation to which the equipment is connected complies with EN IEC requirements e The equipment is used in accordance with the instructions for use The manufacturer reserves the right to disclaim all responsibility for the operating safety reliability and performance of equipment serviced or repaired by other parties Otometrics AURICAL HIT 19 13 Manufacturer 20 Otometrics AURICAL HIT
14. side the test chamber Traditional BTE hearing instruments 11 7 e HA ITE RIE thin tube Thin tube hearing instruments 12 and ITE hearing instruments 13 5 5 Traditional BTE hearing instruments This procedure appliesto any type of standard BTE hearing instruments with traditional ear molds Using the HA 2 adapter and BTE adapter tube Y v Otometrics AURICAL HIT 11 12 5 Testing hearing instruments 5 6 Thin tube hearing instruments This type of procedure applies to any type of thin tube hearing instruments including instruments with the Receiver In the Ear RIE Receiver In the Canal RIC and pre bent tubing Using the HA 1 ITE adapter Note Ifyou place some acoustic putty on the receiver wire this will shift its resonance frequency This will prevent the wire from vibrating and creating feedback during testing Otometrics AURICAL HIT 5 Testing hearing instruments 5 7 ITE hearing instruments This procedure appliesto any type of custom hearing instruments including ITE In The Ear ITC In The Canal CIC Com pletely In the Canal Using the HA 1 ITE adapter 5 8 Telecoil testing 1 Positionthe hearing instrument in AURICAL HIT as described in Traditional BTE hearing instruments 11 Thin tube hearing instruments 12 or ITE hearing instruments 13 so that the maximum field strength will be achieved for the hearing instrument During telecoil te
15. sting AURICAL HIT automatically detects the orientation of the hearing instrument 2 Enable telecoil mode in the hearing instrument 3 Close the lid and start testing 5 9 Hearing instruments with wireless transmitters e g FM When you test hearing instruments with wireless sound transmission it is sometimes necessary to separate the input device transmitter from the output device receiver e Todo so place the transmitter in AURICAL HIT and the receiver on the coupler microphone inthe Accessory Box e Toset up the Accessory Box see The coupler assembly gt 6 Otometrics AURICAL HIT 13 5 Testing hearing instruments 5 10 e Fora detailed description of traditional FM testing see the AURICAL HIT Reference Manual How to perform a standard test The procedure 1 Launch the fitting software for the hearing instrument so that you can control its parameters 2 Launch OTOsuite and select HIT in the Navigation panel 3 Open the Test Selector and select the ANSI or IEC special test 4 If OTOsuite is used without Noah you can fill out the Hearing Instrument fields in the lower right corner of the Standard Tests screen These fields are filled in automatically when you use OTOsuite with Noah together with the fit ting software for the hearing instrument Position the hearing instrument so that it is ready for testing and switch it on Close the lid Se AO a Click the Start button in the top left corner of
16. ts gt 13 depending on the type of hearing instrument 2 Inthe field Directionality Adaptation in the OTOsuite HIT module you can define the duration of the signal present ation before the actual measurement is made This value accommodates any adaptational behavior of the hearing instrument Adaptive directionality often takes 10 to 15 seconds or more before the directionality of the hearing instrument is fully efficient 3 Youcan either combine the Directional Test with your standard test sequence by checking the sequence checkbox or run it separately by clicking the Start button The result The Directional Test result is shown asa 1 3 octave curve of the difference between the measurement with noise presen ted from the main loudspeaker and the measurement with noise presented from the rear loudspeaker The numerical dir ectionality result shown in the Measurements table indicatesthe average front back difference in the measured frequency range The Measurements table also includes the adaptation interval used in seconds Maintenance and Calibration Warning Under no circumstances disassemble AURICAL HIT Contact your supplier Parts inside AURICAL HIT must only be checked or serviced by authorized personnel Calibration of the coupler microphone and calibration of a new reference or coupler microphone must only be performed by authorized personnel Maintenance AURICAL HIT requires no preventive maintenance except for cleaning and re
17. user or patient Cautione 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 4 Otometrics AURICAL HIT 2 Unpacking AURICAL HIT 2 Unpacking AURICAL HIT 1 Unpack the device carefully When you unpack the device and accessories it is agood 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 3 Installation e Place AURICAL HIT on an absolutely stable surface e In order to exclude ambient noise and to comply with the ANSI 3 22 standard place the system in a moderately quiet room 3 1 Connecting the device 1 Install OTOsuite on the PC See the OTOsuite Installation Guide 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 4 The test chamber Using AURICAL HIT and positioning hearing instruments in the test chamber are desc
Download Pdf Manuals
Related Search