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GSI AudioStar Pro™ Clinical Audiometer

52

D-0100778 Rev C

Tone Test Status Display

– Single Hz Resolution

The right and left outlined areas show the list navigation icons. The top (darker
icon) moves +/- 1000 Hz and the other arrow moves to the next/previous page.

High Frequency Test Type

– Status

Full Frequency Test Type - Status

The display for the High Frequency and Full Frequency Status and the Tone Test
Status are identical except for the “range” option on the Navigation Menu. Use
the Range Selection button on the Navigation Menu to select the high frequency
range or the full frequency range.

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Содержание AUDIOSTAR PRO

Страница 1: ...d www grason stadler com Grason Stadler 7625 Golden Triangle Drive Suite F Eden Prairie MN 55344 800 700 2282 952 278 4402 fax 952 278 4401 e mail info grason stadler com GSI AUDIOSTAR PRO USER MANUAL...

Страница 2: ...d in any form or by any means without the prior written permission of Grason Stadler The information in this publication is proprietary to Grason Stadler Compliance The CE 0344 mark identifies complia...

Страница 3: ...rds 15 Warning Electric Grounding 15 Warning Explosion 15 Warning Line Voltage Brownout and Interruptions 16 Warning Connections 16 Warning Battery Safety 16 Warning General 16 Shutdown Procedure 16 R...

Страница 4: ...uency Up Down 38 Data Store 38 Navigation Controls 38 Scorer Timer 39 Aux Intercom 39 Monitoring 40 Test Type Buttons 40 Function Buttons 41 Keyboard 42 Chapter 5 Test Type Displays 43 Monitor 43 Test...

Страница 5: ...eception Threshold SRT 75 Speech Discrimination PB Words 75 Special Test Procedures More Test Type button 76 Alternate Binaural Loudness Balance ABLB or Fowler Test 76 BKB SIN 77 QuickSIN 78 SISI Shor...

Страница 6: ...t Earphones Pure Tone RETSPL 101 Insert Earphones ANSI Speech RETSPL 102 Insert Earphones IEC Speech RETSPL 102 Insert Earphones Pure Tone max HL 103 Insert Earphones NB noise effective masking level...

Страница 7: ...Declaration Electromagnetic Emissions 115 Recommended Separation Distances between Portable and Mobile RF Communications Equipment and the GSI AudioStar Pro 115 Guidance and Manufacturer s Declaratio...

Страница 8: ...properly trained instrument operator should be of high priority The patient is to remain relaxed and still while testing is being performed for optimal accuracy Warranty We Grason Stadler warrant that...

Страница 9: ...for Speech Audiometry 4 ISO 389 1 Reference Equivalent Threshold SPLS for Pure Tones and Supra Aural Earphones 5 ISO 389 2 Reference Equivalent Threshold SPLS for Pure Tones and Insert Earphones 6 IS...

Страница 10: ...rphones do not allow the presentation of the signal at the maximum dB HL to exceed 10 minutes The buildup of increased temperature can cause harm to the earphones This caution label refers the user to...

Страница 11: ...d test result in comments Test results of the ABLB and Tone Decay are not recorded directly on the report This message indicates that the results should be documented in the comments The startup confi...

Страница 12: ...in a highly oxygen enriched environment such as a hyperbaric chamber oxygen tent etc Periodically have a service technician perform electrical safety checks on the unit in order to maintain continued...

Страница 13: ...providing sound isolation from ambient noise is highly recommended so that hearing threshold values may be obtained If a separate examination sound room is used it is considered sufficiently quiet for...

Страница 14: ...ttenuation TDH50 DD45 with MX41 AR or PH51 Cushion dB EAR Tone 3A dB HDA 200 dB 125 3 33 5 14 5 160 4 200 5 250 5 34 5 16 315 5 400 6 500 7 34 5 22 5 630 9 750 800 11 1000 15 35 0 28 5 1250 18 1500 16...

Страница 15: ...ld be done in conjunction with other testing as deemed appropriate given their professional skills Incorrect use could lead to wrong results The maximum sound levels over 100 dB HL that can be generat...

Страница 16: ...o the power unit Follow all safety standards set by each place of employment NOTE If the instrument is connected to a PC power to the monitor and computer must be controlled by the isolation transform...

Страница 17: ...the user Batteries may explode or cause burns if disassembled crushed or exposed to fire or high temperatures Do not short circuit Warning General Proper use of this device depends on careful reading...

Страница 18: ...ctric shock fire and mechanical hazards only in accordance with UL 60601 1 Classified under the Medical Device Directive 93 42 EEC as a Class IIb device 10 980 60601 1 Symbol for European Representati...

Страница 19: ...GSI AudioStar Pro Clinical Audiometer 18 D 0100778 Rev C No Symbol IEC Pub Description 22 60601 1 Patient response switch 23 ISO 7010 M002 Follow Instructions for Use...

Страница 20: ...Kong UK USA The AudioStar Pro Config App allows the selection of the desired symbol set The symbol sets are shown in the following table For symbols that are not specified in the reference documents f...

Страница 21: ...oStar Pro Symbol Sets USA Australia China Hong Kong UK R L L R R L L R R L L R R L L R R L L R AC or or NR or or AC masked NR BC NR BC masked NR BC Forehead NR BC Forehead masked NR SF NR SF masked NR...

Страница 22: ...ling the user to select either Channel 1 or Channel 2 as the recorded stimulus channel The active microphone during tone presentation ensures there are no delays in reinforcing or coaching The built i...

Страница 23: ...mage notify the carrier immediately so that a proper claim can be made Be certain to save all packing material so that the claim adjuster can inspect it as well As soon as the carrier has completed th...

Страница 24: ...101156 Calibration Certificate 8122375 Dust Cover 8013226 Country Kit USA hospital grade power 8100120 Consists of power cord and wireless mouse and keyboard AudioStar Pro with Internal Display Part N...

Страница 25: ...German 8100624 European Power Cord Spanish 8120253 European Power Cord Portuguese 8102218 European Power Cord Russian 8100448 European Power Cord English 8100672 United Kingdom Power Cord English 8120...

Страница 26: ...ported R4 USB Connectors USB A style plug R5 External Monitor Output HDMI Video only signals no audio 600 x 800 resolution R6 FF Speaker DIN Connection Output SFS Sound Field Speaker 5 pin DIN connect...

Страница 27: ...ne Outputs 6 35 mm stereo jack Left blue and Right red R12 VRA Connection Output 3 5 mm stereo jack to activate a left or right VRA system contact a GSI service representative for details R13 Left and...

Страница 28: ...et the monitor speaker will be active The intensity of the Channel 1 and Channel 2 stimuli may be adjusted using the monitor knob on the front panel of the instrument Left Side Panel The following con...

Страница 29: ...y a memory stick may be inserted into a USB port for updating software adding additional sound files or exporting diagnostic log files NOTE Scan files on a USB drive for viruses prior to installing th...

Страница 30: ...ied under the Medical Device Directive 93 42 EEC as a Class IIb device Caution consult accompanying documents Conforms to European Medical Device Directive 93 94 EEC Manufacture Date year will be inse...

Страница 31: ...power is supplied to the GSI AudioStar Pro This indicates that the power switch is in the on position Stimulus Intensity Level s Test Mic Input A and Input B Level Controls To calibrate the test sign...

Страница 32: ...ether will activate the Center position on compatible VRA systems Interlock The Interlock pushbutton locks the presentation function of the two channels together so that stimulating one channel will a...

Страница 33: ...appropriate printer is connected to the AudioStar Pro and the printer has been configured properly using the Configuration Application Software the current stored test information is sent directly to...

Страница 34: ...D 0100778 Rev C 33 Printer Output Formats The printout formats are shown in the following figures...

Страница 35: ...GSI AudioStar Pro Clinical Audiometer 34 D 0100778 Rev C...

Страница 36: ...en using a digital music player select the level using the calibration track First adjust the volume on the device until the VU meter reads nearly 0 dB then fine tune the intensity using the level sel...

Страница 37: ...ise Invalid Valid Valid Valid Invalid Valid Invalid W Noise Valid Valid Valid Valid Invalid Invalid Valid NOTE If White Noise is selected on both channels then calibration is set to speech effective m...

Страница 38: ...o accommodate all speakers Additionally the speaker defaults and descriptions must be defined in the Config App When using four speakers a speaker routing dialog is displayed when the Left Right routi...

Страница 39: ...frequencies with the High Frequency option When at the lower limit of the frequency selection pressing the pushbutton will cause the display to roll over to the highest frequency limit and vice versa...

Страница 40: ...tient response button in the Tone Decay test The timer will be active as long as the patient response button is depressed When the patient response button is released the timer will be paused and may...

Страница 41: ...e adjusted and then rotating the knob to the desired intensity for the operator and assistant Select Talkback to adjust the intensity of the patient s voice for the operator Select the AUX Intercom to...

Страница 42: ...tercom and adjust the screen brightness Update Place a USB drive with the appropriate update loaded into one of the four USB ports Select Update and then select from device or sound files to update th...

Страница 43: ...sducer High Frequency Phone I Transducer Insert K Interlock L Routing Ch 1 Left Ch 2 Right M Masking N Tone No Response P Transducer Phone R Routing Ch 1 Right Ch 2 Left S Store T Tracking V Transduce...

Страница 44: ...nt list The right side of the title bar displays the examiner name if examiners have been entered The examiners can be entered from the Configuration application Test Type Information Under the title...

Страница 45: ...icon indicates direct communication between the operator and the Aux headset Data Transfer When there is an active connection between the AudioStar Pro and an external computer communication will be i...

Страница 46: ...using the mouse In the title bar it is possible to select a patient test type or examiner using the mouse to display a drop down menu of the selection choices Channel 1 and Channel 2 Windows The Chann...

Страница 47: ...pplication The Speech Intelligibility Index SII is automatically calculated as the threshold data is collected The perception of speech information that is audible and usable for each patient based on...

Страница 48: ...x will remain on the screen for efficient changing of signal types Decibel dB Step The dB Step button toggles the choices for the decibel steps Each time this option is selected with the navigation bu...

Страница 49: ...frequency list and the test type is standard only the standard frequencies are presented Comments This pencil icon opens a comments window must use external keyboard to utilize comment section Comment...

Страница 50: ...for the PTA or SII and only displays frequencies from 8 kHz to 20 kHz The high frequency headphones Sennheiser HDA 200 300 may be calibrated from 125 Hz to 20 kHz The display view may be configured as...

Страница 51: ...itional high frequencies displayed in the audiogram The high frequency headphones Sennheiser HDA 200 300 may be calibrated from 125 Hz to 20 kHz The display view may be configured as high frequencies...

Страница 52: ...ys The Navigation Menu is similar to the audiogram Navigation Menu but has one additional button Fine Hz Fine Frequency Resolution The Fine Hz button allows the user to select from a sub menu of diffe...

Страница 53: ...1000 Hz and the other arrow moves to the next previous page High Frequency Test Type Status Full Frequency Test Type Status The display for the High Frequency and Full Frequency Status and the Tone T...

Страница 54: ...enter of the title bar the test type Speech will be displayed On the right side of the title bar the examiner name will be displayed An underline on any item on the display indicates that a choice may...

Страница 55: ...ed The right side converts this into a percentage The lower part indicates the current word being presented NOTE When using internal Wav files the Correct Incorrect and Clear buttons are inactive whil...

Страница 56: ...last word in the list Navigation Menu Test Type Select SRT Speech Reception Threshold SDT Speech Detection Threshold WRS Word Recognition Score SRS Speech Sentence Recognition Score MCL Most Comforta...

Страница 57: ...e highlighted yellow When the yellow highlight disappears score the word and move to the next test word using the navigation keys If a score is indicated before the highlight disappears it might not b...

Страница 58: ...ring comments the dialog has the options for recording Stenger test results both pure tone and speech The Stenger buttons on the comments dialog may be toggled to indicate a positive or negative test...

Страница 59: ...e One new menu option New Curve is added to the Navigation Menu The SRT score will be plotted on the Speech Audiogram at 50 on the corresponding intensity Word recognition scores will be plotted on th...

Страница 60: ...tem New Curve The new curve button on the Navigation Menu starts a new curve on the speech audiogram The current data is maintained and you can start a new test collecting SRT and WRS data that will b...

Страница 61: ...tween the two ears The level of the tone stays the same in one ear i e fixed ear and is varied up down in the other ear i e variable ear The top section ABLB test display has common elements found on...

Страница 62: ...Channel 1 and 2 Output sections that are similar to what has been described for the speech displays Scoring Window There are two scoring windows in the middle of the top section of the display The sc...

Страница 63: ...ing presented the background will be highlighted yellow The sentences are scored by pressing the correct or incorrect button the appropriate number of times If more sentences are on the list than can...

Страница 64: ...ve the target talker and background babble recorded on the same channel and the S N ratio integrated into the recording The Split Track lists provide the ability to control the signal and noise in way...

Страница 65: ...splay has the Title bar and the Channel 1 and 2 Output sections that are similar to what has been described for the speech displays Scoring Window There are two scoring windows in the middle of the to...

Страница 66: ...pressing the present button When a sentence is being presented the background will be highlighted yellow The sentences are scored by pressing the correct or incorrect button the appropriate number of...

Страница 67: ...r research and special applications In the Research mode the Output for Channel 1 and 2 may be controlled independently In the Standard mode the Output for Channel 2 cannot be adjusted The Separated T...

Страница 68: ...he top section of the display has the common elements found on all the previously described screens The center section displays the results of the testing Using the Correct Incorrect score buttons obt...

Страница 69: ...threshold is measured in the presence of a continuous background noise and a 2 dB final step size is used to measure thresholds The test was designed for detecting the presence of cochlear dead region...

Страница 70: ...is started when the patient presses the response button or may be started manually from the Correct Start button on front panel When the patient response button is released it pauses the timer and whe...

Страница 71: ...r change the output levels which may require that the transducers be replaced CAUTION It is recommended that all parts that come into direct contact with the patient e g earphone cushions are subjecte...

Страница 72: ...NING Do not connect or disconnect Earphones Insert Phones Bone Vibrator High Frequency Transducers or any other accessories while in contact with the patient Typical Evaluations Test Type Buttons Test...

Страница 73: ...or by a single click of a wireless mouse The correct incorrect clear buttons may be used to score It is critical that the test type be carefully selected as the reporting storing is dependent upon tes...

Страница 74: ...ne Threshold Audiometry Patient Instructions Preparing the subject for test 1 Put the subject at ease 2 Make sure the subject understands the task 3 Use the following instructions I am going to place...

Страница 75: ...ut of 3 on an ascending scale The threshold is considered to be the minimum intensity setting at which a response has occurred two out of three times at lowest db HL Record this setting by pressing St...

Страница 76: ...threshold level Present one word on the list and if the response is correct lower the level by 10 dB Continue to decrease the intensity until the patient can no longer repeat the word Increase the int...

Страница 77: ...ivity This ear will receive the tone at a fixed intensity Select ABLB from the More Test Menu Set the intensity of the tone for each channel to 20 dB above the threshold of each corresponding ear The...

Страница 78: ...in 3 dB steps Presentation Level The choice of presentation level depends on the purpose of testing For standard SNR Loss testing the BKB SIN Test should be presented at a relatively high level loud b...

Страница 79: ...be reliably predicted from the pure tone audiogram Killion Niquette 2000 For detailed information on the QuickSIN please see the QuickSIN manual QuickSIN Methodology A list of six 6 sentences with fiv...

Страница 80: ...eated by the patient NOTE Scoring preference options may be setup as defaults from the Config App The SNR Loss score will appear in the SCORE WORD window Select additional lists for testing if necessa...

Страница 81: ...s Positive SISI Scores of less than 70 indicate auditory disorders not in the cochlea or normal hearing equals Negative SISI Presentation Level Increase the attenuator to 20 dB SL Test Instructions Yo...

Страница 82: ...ss is 60 dB or less start the TEN noise level at 70 dB If the hearing loss is 70 dB or greater start the TEN level 10 dB higher than the threshold If the TEN is reported to be too loud start the TEN l...

Страница 83: ...is heard and to release the hand switch only when the tone becomes inaudible Test Procedure Select Tone Decay from the More Tests Menu Present the continuous tone at the selected intensity When the p...

Страница 84: ...e computer is connected to the AudioStar Pro via USB cable The AudioStar Pro should be powered on Follow the on screen installation prompts to load the configuration application to the computer The Au...

Страница 85: ...ctions made in this tab The high frequency print format graph orientation printer protocol speech printing and facility logo are customizable items on the printout Word Lists Tab When uploaded from th...

Страница 86: ...ion of test parameter information from the AudioStar Pro to an external computer with a single push of the Data Transfer button See the GSI Instrument Services user manual for detail on how to utilize...

Страница 87: ...solution or in combination with Noah 4 or OtoAccess OtoAccess OtoAccess is a SQL database that is used to network multiple audiometric systems creating one master database The robust database provides...

Страница 88: ...e level Place the transducer on your head Activate both Interrupt buttons Bend the cord next to the plug at both ends of each earphone Listen for an intermittent signal abrupt changes in the signal le...

Страница 89: ...dB When a bone vibrator fails this test the calibration should be verified Masking Level Check Select the Tone test type Ensure the stimulus is narrow band noise on Channel 2 Activate the Channel 2 I...

Страница 90: ...e followed by an application of EPA registered hospital disinfectant Do not use any abrasive cleaners Use of a non alcohol based disinfectant is recommended for larger areas and headphones Non alcohol...

Страница 91: ...nsity Range AirConduction TDH 10dBHLto120dBHL High Frequency 20 dBHLto 100dB HL with SennheiserHDA200 Phones Bone Conduction 10 dBHLto75dBHL mastoid 10 dBHLto65dBHL forehead SoundField 10 dBHLto90dBHL...

Страница 92: ...5 and 0 BKB SIN 18 List Pairs The sentences are presented at prerecorded signal to noise ratios that decrease in 3 dB steps Each list in the pair is individually scored and the results of the two lis...

Страница 93: ...SA Canadian European and Standards International Standards ANSI S3 6 IEC 60645 1 IEC 60645 2 ISO 389 UL 60601 1 American Standards for Medical Electrical Equipment IEC EN 60601 1 International Standar...

Страница 94: ...are not within 5 dB at 125 6 000 8 000 and 12 000 Hz in the earphones the GSI AudioStar Pro should be scheduled for immediate maintenance It is not possible to select a dB HL value outside the limits...

Страница 95: ...5 12 9 5 0 5 5000 Hz 13 11 12 11 14 10 5 6000 Hz 20 5 16 13 5 16 17 21 6300 Hz 19 21 13 5 21 17 5 21 5 8000 Hz 12 15 5 13 15 5 17 5 23 9000 Hz 19 27 5 10000 Hz 22 18 11200 Hz 23 22 12000 Hz 17 5 11 0...

Страница 96: ...ech noise Non linear 6 7 5 7 5 7 5 5 5 2 White noise in speech 21 22 5 22 5 22 5 21 5 17 DD45 GF GC PTB DTU report 2009 2010 TDH50 GF GC ANSI S3 6 2010 HDA200 GF GC ANSI S3 6 2010 and ISO 389 8 2004 H...

Страница 97: ...0 20 Speech noise Equ FF 3 5 4 5 2 3 3 5 1 Speech noise Non linear 6 7 5 7 5 7 5 5 5 2 White noise in speech 22 5 22 5 22 5 22 5 22 5 22 5 DD45 GF GC PTB DTU report 2009 2010 TDH50 GF GC ANSI S3 6 201...

Страница 98: ...0 120 120 120 Tone 800 Hz 120 120 120 120 120 120 Tone 1000 Hz 120 120 120 120 120 120 Tone 1250 Hz 120 120 120 120 110 120 Tone 1500 Hz 120 120 120 120 115 120 Tone 1600 Hz 120 120 120 120 115 120 To...

Страница 99: ...1 5 14 13 5 14 11 9 5 NB 800 Hz 11 5 13 5 13 5 13 5 11 9 NB 1000 Hz 12 13 5 13 5 13 5 11 5 8 NB 1250 Hz 13 13 5 13 5 13 5 12 8 5 NB 1500 Hz 14 13 5 13 5 13 5 11 5 9 NB 1600 Hz 14 14 14 5 14 11 5 8 5 N...

Страница 100: ...z 110 110 105 105 100 105 NB 1000 Hz 110 110 105 105 100 105 NB 1250 Hz 110 110 105 105 95 105 NB 1500 Hz 110 110 105 105 100 105 NB 1600 Hz 110 110 105 105 100 105 NB 2000 Hz 110 110 100 100 100 105...

Страница 101: ...peech noise Equ FF 100 95 85 85 80 95 Speech noise Non linear 115 115 110 110 105 120 White noise in speech 95 95 95 95 90 100 Earphones IEC Speech max HL Transducer DD45 DD45 TDH50 TDH50 HDA200 HDA30...

Страница 102: ...5 5 5 1250 Hz 2 2 8 5 8 5 1500 Hz 2 2 9 5 9 5 1600 Hz 2 2 9 5 9 5 2000 Hz 3 3 11 5 11 5 2500 Hz 5 5 13 5 13 5 3000 Hz 3 5 3 5 13 13 3150 Hz 4 4 13 13 4000 Hz 5 5 5 5 15 15 5000 Hz 5 5 18 5 18 5 6000...

Страница 103: ...ivity weighting ANSI Speech Not linear level 1 kHz RETSPL ANSI S3 6 2010 DD45 TDH50 HDA200 HDA300 and EAR 3A IP30 B71 B81 12 5 dB 1 kHz RETSPL ANSI S3 6 2010 no weighting Insert Earphones IEC Speech R...

Страница 104: ...115 115 115 115 Tone 750 Hz 115 115 115 115 Tone 800 Hz 115 115 115 115 Tone 1000 Hz 120 120 120 120 Tone 1250 Hz 120 120 120 120 Tone 1500 Hz 120 120 120 120 Tone 1600 Hz 120 120 120 120 Tone 2000 Hz...

Страница 105: ...9 5 9 5 13 5 13 5 NB 630 Hz 9 9 12 5 12 5 NB 750 Hz 7 7 11 11 NB 800 Hz 6 5 6 5 10 5 10 5 NB 1000 Hz 6 6 11 5 11 5 NB 1250 Hz 8 8 14 5 14 5 NB 1500 Hz 8 8 15 5 15 5 NB 1600 Hz 8 8 15 5 15 5 NB 2000 Hz...

Страница 106: ...05 105 105 NB 750 Hz 105 105 105 105 NB 800 Hz 105 105 105 105 NB 1000 Hz 105 105 105 105 NB 1250 Hz 105 105 105 105 NB 1500 Hz 105 105 105 105 NB 1600 Hz 105 105 105 105 NB 2000 Hz 105 105 105 105 NB...

Страница 107: ...linear 105 105 105 105 Speech noise Speech noise Equ FF Speech noise Non linear 100 100 100 100 White noise in speech 95 95 85 85 Insert Earphones IEC Speech max HL Transducer EAR3A IP30 EAR3A IP30 I...

Страница 108: ...47 59 47 59 1000 Hz 42 5 51 42 5 51 1250 Hz 39 49 39 49 1500 Hz 36 5 47 5 36 5 47 5 1600 Hz 35 5 46 5 35 5 46 5 2000 Hz 31 42 5 31 42 5 2500 Hz 29 5 41 5 29 5 41 5 3000 Hz 30 42 30 42 3150 Hz 31 42 5...

Страница 109: ...vity weighting ANSI Speech Not linear level 1 kHz RETSPL ANSI S3 6 2010 DD45 TDH50 HDA200 HDA300 and EAR 3A IP30 B71 B81 12 5 dB 1 kHz RETSPL ANSI S3 6 2010 no weighting Bone Vibrators IEC Speech RETS...

Страница 110: ...30 Hz 70 55 75 60 Tone 750 Hz 70 55 75 60 Tone 800 Hz 70 55 75 60 Tone 1000 Hz 75 65 85 75 Tone 1250 Hz 75 65 90 80 Tone 1500 Hz 80 60 90 80 Tone 1600 Hz 80 60 85 75 Tone 2000 Hz 80 60 85 75 Tone 2500...

Страница 111: ...71 57 5 71 NB 750 Hz 53 5 66 5 53 5 66 5 NB 800 Hz 52 64 52 64 NB 1000 Hz 48 5 57 48 5 57 NB 1250 Hz 45 55 45 55 NB 1500 Hz 42 5 53 5 42 5 53 5 NB 1600 Hz 41 5 52 5 41 5 52 5 NB 2000 Hz 37 48 5 37 48...

Страница 112: ...55 40 65 50 NB 750 Hz 60 45 65 50 NB 800 Hz 60 45 65 50 NB 1000 Hz 60 50 70 60 NB 1250 Hz 65 55 75 60 NB 1500 Hz 65 50 75 60 NB 1600 Hz 65 50 75 60 NB 2000 Hz 65 50 70 55 NB 2500 Hz 65 50 65 50 NB 30...

Страница 113: ...ech Non linear 55 35 60 50 Speech noise Speech noise Equ FF Speech noise Non linear 50 40 50 40 White noise in speech 50 40 60 50 Bone Vibrators IEC Speech max HL Transducer B71 B71 B81 B81 Impedance...

Страница 114: ...5 1 4 0 1 95 95 110 750 2 4 1 1 2 6 100 100 110 1000 2 4 1 6 3 1 100 100 110 1500 2 4 1 1 2 6 100 100 110 2000 1 3 4 3 3 3 100 100 115 3000 5 8 10 8 8 3 105 105 115 4000 5 4 9 4 4 9 105 105 115 6000...

Страница 115: ...es with the IEC 60601 1 2 standard Electromagnetic Compatibility Although the instrument fulfils the relevant EMC requirements precautions should be taken to avoid unnecessary exposure to electromagne...

Страница 116: ...agnetic environment in which radiated RF disturbances are controlled The customer or the user of the GSI AudioStar Pro can help prevent electromagnetic interferences by maintaining a minimum distance...

Страница 117: ...Surge IEC 61000 4 5 1 kV differential mode 2 kV common mode 1 kV differential mode 2 kV common mode Mains power quality should be that of a typical commercial hospital or residential environment Volta...

Страница 118: ...ns from fixed RF transmitters as determined by an electromagnetic site survey a should be less than the compliance level in each frequency range b Interference may occur in the vicinity of equipment m...

Страница 119: ...for Manual Pure Tone Threshold Audiometry Guidelines Available from www asha org policy Margolis R H and Morgan D E 2004 Automated Pure Tone Audoimetry An Analysis of Capacity Need and Benefit Americ...

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