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GSi 61 User Manual

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GSI 61
™
User ManUal
Part number 1761-0100 rev B
Setting The Clinical Standard
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

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Questions and answers

Gary simpson
March 22, 2025

Can’t get screen on

0
1 comments:
Mr. Anderson
March 22, 2025

The screen of the GSI 61 may not turn on due to a line voltage brownout or power interruption. The device is designed to protect against abnormal AC power conditions by returning to power-up initialization settings. If interference is too severe, the unit may enter a lockout mode, preventing front panel operations. To resolve this, turn off the power, wait approximately 30 seconds, and then turn it back on. If the issue persists, contact a service representative.

This answer is automatically generated

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Summary of Contents for GSi 61

  • Page 1 GSI 61 ™ User ManUal Part number 1761-0100 rev B Setting The Clinical Standard 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...
  • Page 2 Title: GSI 61 User Manual Copyright © 2011 Grason-Stadler Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means without the prior written permission of Grason-Stadler Inc. The information in this publication is proprietary to Grason-Stadler.

  • Page 3: Warnings, Cautions And Errors

    Warnings, Cautions and Errors The GSI 61 Clinical Audiometer is designed to be used with a hospital grade outlet. Injury to Warning! personnel or damage to equipment can result when a three-prong or two-prong adaptor is Accessory equipment connected between the GSI 61 power plug and an AC outlet or extension cord.
  • Page 4 If the word “Help” followed by an error code is displayed, note the Help Code number. See the GSI 61 Service Manual (1761-0110) for detailed descriptions of these. Turn off the power to the GSI61 and wait 30 seconds. Restart the instrument. Often the error will be cleared by this action.

  • Page 5: Warranty

    Warranty We, Grason-Stadler, warrant that this product is free from defects in material and workmanship and, when properly installed and used, will perform in accordance with applicable specifications. If within one year after original shipment, it is found not to meet this standard, it will be repaired, or at our option, replaced at no charge except for transportation costs, when returned to an authorized Grason-Stadler facility.

  • Page 6: Specifications

    Specifications ® The GSI 61 Clinical Audiometer meets or exceeds the following standards: ANSI S3.6-1989; Standards ANSI S3.43-1992; IEC 645-1 (1992); IEC 645-2 (1993); ISO 389; UL 2601-1 Medical Electrical Equipment; IEC 601-1 Medical Electrical Equipment and CSA C22.2, No. 601.1-M90 Electromedical Equipment.

  • Page 7: Signal Format

    Grason-Stadler GSI® 61 CLINICAL Microphone: For live voice testing and communications Speech Channel 1 and External A and External B: Accepts recorded speech material from external Channel 2 stereo tape cassette or CD player Intensity Range: Air Conduction: -10 dB HL to 105 dB HL...

  • Page 8: Power Consumption

    High Frequency Headphones w/booth cables ----------------------------------------- 1761-9602 High Frequency Cables (to sound booth) ---------------------------------------------- 1761-9603 (If using High Freq Headphones, these cables are required to connect to the GSI 61) High Frequency Headphones w/cables to GSI 61 ------------------------------------- 1761-9604 High Frequency Cables (to GSI 61) ------------------------------------------------------ 1761-9605...

  • Page 9: Catalog Listings

    GSI 61 Clinical Audiometer without Remote English ---------------------------------------------------------------------------------- 1761-9700-XXE French ----------------------------------------------------------------------------------- 1761-9700-XXF German ---------------------------------------------------------------------------------- 1761-9700-XXG Italian -----------------------------------------------------------------------------------1761-9700-XXI Spanish --------------------------------------------------------------------------------- 1761-9700-XXS GSI 61 Clinical Audiometer with USB Remote English -------------------------------------------------------------------------------- 1761-9780-XXE French --------------------------------------------------------------------------------- 1761-9780-XXF German -------------------------------------------------------------------------------- 1761-9780-XXG Italian -----------------------------------------------------------------------------------1761-9780-XXI Spanish--------------------------------------------------------------------------------- 1761-9780-XXS Notes -XX refers to the voltage and plug requirements for the country of operation.

  • Page 10: Electromagnetic Compatibility (Emc)

    Electromagnetic Compatibility (EMC) 1761-0100 Rev. B...

  • Page 11: Table Of Contents

    Table of Contents Preface Title---------------------------------------------------------------------------------------------------------i Warnings, Cautions and Errors------------------------------------------------------------------------ii Warranty ------------------------------------------------------------------------------------------------iv Specifications -------------------------------------------------------------------------------------------v Standards -------------------------------------------------------------------------------------------v Pure Tone - Channel 1 and Channel 2 ---------------------------------------------------------v Speech Channel 1 and Channel 2 --------------------------------------------------------------vi Signal Format -------------------------------------------------------------------------------------vi Special Test Capabilities ------------------------------------------------------------------------vi Communications and Monitoring --------------------------------------------------------------vi Dimensions and Weight--------------------------------------------------------------------------vi Power Consumption -----------------------------------------------------------------------------vii Accessories Supplied----------------------------------------------------------------------------vii...
  • Page 12 ® ® ® Grason-Stadler GSI Grason-Stadler GSI Grason-Stadler GSI 61 CLINICAL AUDIOMETER 61 CLINICAL AUDIOMETER 61 CLINICAL AUDIOMETER Chapter 3 Preliminary Checks--------------------------------------------------------------------------------- 3-1 Patient Instructions --------------------------------------------------------------------------------- 3-2 Operation Placement of the Earphones ------------------------------------------------------------------3-2 Placement of the Insert Phone ----------------------------------------------------------------3-2 Placement of the Bone Vibrator ---------------------------------------------------------------3-2...
  • Page 13 Remote Output Operation---------------------------------------------------------------------------6-13 Type 1- GSI 16 Compatible Short Data Record----------------------------------------------6-13 Type 4 - Error Record --------------------------------------------------------------------------6-16 Type 5 - GSI 61 Short Data Record ----------------------------------------------------------6-16 Type 6 - Test Battery Data Record -----------------------------------------------------------6-18 Record Prefix -----------------------------------------------------------------------------------6-18 Left Ear Test Data - Pure Tone ---------------------------------------------------------------6-18...
  • Page 14 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Blank page. 1761-0100 Rev. B Contents-4...

  • Page 15: Introduction

    (from 8 kHz to 20 kHz) for ototoxic drug monitoring. The GSI 61 has the optional capability of printing the stored audiogram data or of sending the data to a remote computer through an RS 232 or USB interface. The RS 232 and USB interface are bidirectional to allow the operator to transmit test results to a computer and to control the audiometer from a remote computer system.
  • Page 16 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Blank page. 1761-0100 Rev. B...

  • Page 17: External Inspection

    Unpacking Carefully remove the GSI 61 from its shipping container. If the instrument appears to have suffered mechanical damage, 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.

  • Page 18: Connectors, Controls And Indicators

    Grason-Stadler GSI 61 CLINICAL AUDIOMETER Connectors, Controls and Indicators The connectors on the rear panel of the GSI 61 are shown in the following diagram. Rear Panel The label and jacks are visible looking down onto the instrument, behind the LCD.
  • Page 19 Chapter 2 - Installation Insert Phone Outputs Monaural phone jacks for left and right insert phones or patch cords. Voltage: 1µV to 4.0 V Output impedance: 5 ohms or less Note: When the Single Insert Phone option is used, it must be plugged into the left insert phone output.

  • Page 20: Left Side Panel

    When turned ON, the GSI 61 automatically initializes and displays a screen which states the type of audiometer (IEC and ANSI specified for speech audiometry) followed by a status screen. With the status display, the GSI 61 is brought to the initialization state.

  • Page 21: Front Panel Controls

    These pushbuttons allow the operator to change the intensity step size to 1.0, 2.0 or 5.0 dB. When the GSI 61 is powered up, the dB step size is automatically set to the default of 5 dB increments. These pushbuttons are also used to select the intensity increase when testing in the SISI mode.
  • Page 22 FM tone in the selected channel for 200 milliseconds. The SISI test may be run at step sizes of 1.0, 2.0 or 5.0 dB. When SISI is selected, the GSI 61 automatically initializes Channel 1 to receive tone and Channel 2 to receive NB noise. The step size is initialized to 5.0 dB but may be changed to either 1.0 or 2.0 dB at any time...
  • Page 23 Chapter 2 - Installation Stimulus Channel 1 Tone — The Tone pushbutton allows the selection of a pure tone presentation for and Channel 2 air/bone conduction testing with the choice of four transducer types; Phone (both the standard TDH 50P and the optional High Frequency earphones), Bone, Speaker, or Insert.

  • Page 24: Valid Stimuli Combinations

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Valid Stimuli Combinations Channel 1 Stimulus Tone Ext A Ext B NBNoise S Noise White Noise* Tone Valid Valid Valid Valid Valid Invalid Valid * If White Noise is selected Valid Valid Valid Valid...
  • Page 25 High Frequency earphones. While Talk Forward is on, the only control which can be activated is the Print, if available. The GSI 61 resumes the test status held prior to pressing the Talk Forward pushbutton when the pushbutton is released.
  • Page 26 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Scorer/Timer The Correct, Clear and Incorrect pushbuttons are used for scoring results in Speech, ALTernate or SISI tests. The scorer is displayed in the test status area of the Status screen. When Speech, SISI or ALT is selected, the scorer initializes to 0/0 = 0%.
  • Page 27 Chapter 2 - Installation Display Audiogram High Frequency — When the High Frequency pushbutton is pressed with the High Frequency option installed, the system allows tone testing in the extended range from 8 kHz to 20 kHz. The display remains in the Display Status or Display Audiogram format as previously selected.
  • Page 28 When the Data Erase pushbutton is pressed for at least 0.5 second, all of the stored test data in the GSI 61 is erased and the message “Erasing Data” is displayed on the LCD. If no data is stored in the GSI 61 memory, the message “No Test Data Stored”...
  • Page 29 Power This Power Monitor green light emitting diode (LED), located in the upper left portion of the keypanel, is illuminated when power is supplied to the GSI 61. 2-13 1761-0100 Rev. B...

  • Page 30: Displays

    61 CLINICAL AUDIOMETER Displays A Liquid Crystal Display (LCD) is hinged to the GSI 61 and is used to display all of the testing information from the instrument. When the LCD is in the lowered position, easy access to the rear connector panel is provided.
  • Page 31 Chapter 2 - Installation The following figure is a representation of the standard audiogram. 12345678901234 12345678901234 f / g Standard Audiogram Frequency, in Hz, selected for Channel 1 or Channel 2. b. The indicator bar for the subject response displays when the handswitch is pressed. c.
  • Page 32 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER In the next figure, High Frequency Audiogram, the x axis is labeled Right Ear or Left Ear Frequency (kHz) and is marked at the frequency levels of 8 kHz, 10 kHz 12.5 kHz, 16 kHz, and 20 kHz. The dashed grid lines are displayed at the intermediate frequencies of 9 kHz, 11.2 kHz, 14 kHz and 18 kHz.

  • Page 33: Test Microphone/Monitor Headset

    The white dot on the base of the microphone must face the tester’s mouth. The GSI 61 permits the operator to speak through the test microphone into the test transducer at continuously variable intensities from 45 dB HL to 90 dB HL in the Talk Forward mode.

  • Page 34: Optional Accessories

    This option may be factory installed on the GSI 61. In addition to a choice of color or black-and-white, a choice of separate left and right or overlaid left and right audiograms is provided.
  • Page 35 AUDIOGRAM pushbutton is pressed, after the “Printing” message disappears from the display. Instrument Operation The GSI 61 remains operational while printing with the following exceptions: pressing while Printing the Data Erase, Save, Data Transfer and Remote pushbuttons will result in the error message “Invalid Selection.”...
  • Page 36 Grason-Stadler GSI 61 CLINICAL AUDIOMETER Error Messages The GSI 61 displays error messages when the PRINT AUDIOGRAM pushbutton is pressed when the following conditions exist: If there is currently no saved data, this error message will be flashed: No Test Data Stored If test data exists, the presence of the Remote/Printer Option board is verified;...
  • Page 37 Chapter 2 - Installation Printer Output Formats The printout formats are shown in the following four figures. Low Frequency Dual Audiogram Format Low Frequency Combined Audiogram Format 1761-0100 Rev. B 2-21...
  • Page 38 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER High Frequency Dual Audiogram Format High Frequency Combined Audiogram Format 1761-0100 Rev. B 2-22...
  • Page 39 Chapter 2 - Installation It is an option to include high frequency audiometry High Frequency on the GSI 61. The High Frequency earphones are connected to stereo cable extensions which, in turn, are connected into the Right and Left phone jacks on the rear panel.

  • Page 40: Hearing Level And Frequency Limits

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Hearing Level and Frequency Limits Hearing Level (dB HL) It is not possible to select a dB HL value outside the limits for a particular transducer/ frequency combination. An attempt to change or select a hearing level control that is outside of the limit will result in the following: 1.
  • Page 41 Note: The hearing levels listed in this table are guaranteed maximum levels. These levels are guaranteed only if ANSI, ISO or GSI reference threshold levels, and not customized calibration values, are used. The GSI 61 provides hearing level limits to at least the values listed.

  • Page 42: Initial Installation

    61 CLINICAL AUDIOMETER Initial Installation Elimination of Ambient Noise The GSI 61 can be installed in a single room environment or as part of a two room suite. Excessive noise in the test environment, such as that produced by conversation,...

  • Page 43: Single Room Environment

    Chapter 2 - Installation Single Room Environment Place the GSI 61 on the desk or table where it will be used. The location should be near a grounded electrical outlet which is needed to accommodate the GSI 61 power cord. Allow a minimum of 2 inches of clearance around the GSI 61 for heat dissipation.
  • Page 44 Connect the optional speaker cable to the connector marked Speaker on the rear of the GSI 61. Pass the other ends of the cable through the grommet holes in the control panel of the sound room. Connect the cable marked “left” to the left speaker, and the one marked “right”...

  • Page 45: Loudspeaker Installation

    Chapter 2 - Installation Loudspeaker Installation The installation of the Basic Speakers, 1761-9630, with the GSI 61 provides a guaranteed maximum level in speech of 90 dB HL (with a 6 ft x 6 ft room, and the patient seated one meter from the speakers).
  • Page 46 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Blank page. 2-30 1761-0100 Rev. B...

  • Page 47: Preliminary Checks

    If speech testing with recorded voice is to be performed, check that the CD or tape unit is connected and operating properly. Turn on the GSI 61 and allow it to warm up for 10 minutes. Handle earphones, bone vibrator, and insert earphones with care.

  • Page 48: Patient Instructions

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Patient Instructions Noise Recovery Period Exposure to high levels of sound - unmuffled lawn mowers, many power tools, motorcycles, rock music, gunfire - tends to create a temporary threshold shift (TTS) which diminishes with time after exposure.

  • Page 49: Routine Test Procedures

    Chapter 3 - Operation Routine Test Procedures The following procedures are in compliance with the current ANSI and ISO recommendations for Manual Pure Tone Threshold Audiometry. Preliminary Turn on the instrument and allow it to come to operating temperature. Check that the transducers and other system components are operating properly. Seat the patient comfortably in the test area.

  • Page 50: Spondaic Speech Testing, Speech Reception Threshold (Srt)

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Test Procedure Test the better ear first. Repeat the sections on Patient Familiarization and Threshold Determination for each tone setting in the following order: 1000 Hz, 2000 Hz, 4000 Hz, 8000 Hz. Retest 1000 Hz followed by 500 Hz and 250 Hz.
  • Page 51 This section describes some special test procedures that can be used with the GSI 61 Clinical Audiometer. The flexibility of the GSI 61 allows for preference choices in test setup and operations. The operator makes the channel, routing, transducer and presentation mode selections which are appropriate to the test requirements.

  • Page 52: Alternate Binaural Loudness Balance (Ablb) Or Fowler Test

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Alternate Binaural Loudness Balance (ABLB) or Fowler Test The perceived growth of loudness of a suprathreshold tone in an impaired ear may differ from the compared growth of loudness of a tone of identical frequency in the normal ear.

  • Page 53: Monaural Loudness Balance (Mlb) Test

    Chapter 4 - Special Test Procedures Monaural Loudness Balance (MLB) Test A comparison of perceived loudness growth is made between two different frequencies on the same ear. The frequency where the best hearing is detected is used as the “reference” frequency for the comparison of perceived loudness with tones at the impaired frequency.

  • Page 54: Short-Increment Sensitivity Index (Sisi)

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Short-Increment Sensitivity Index (SISI) Patients exhibiting cochlear pathology are better able to detect small increments in intensity at low sensation levels than normally hearing subjects or subjects with pathologies located elsewhere in the auditory system. A continuous tone is presented to the test ear at 20 dB SL.

  • Page 55: High Frequency Testing (Optional)

    Installation of the High Frequency option is necessary for this test capability. Contact a GSI representative for additional information. Install the High Frequency earphones as shown in the following figures: High Frequency to Booth, or High Frequency - No Booth.

  • Page 56: Sensorineural Acuity Level (Sal) Test

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Sensorineural Acuity Level (SAL) Test A modification of the Rainville Method. A procedure for the measurement of sensorineural sensitivity comparing threshold shifts produced by bone conducted masking noise in normal hearing subjects and in patients.
  • Page 57 Chapter 4 - Special Test Procedures Aided Test The following aided tests are then performed for comparison. Obtain an aided Speech Reception Threshold in the sound field room with the patient wearing the hearing aid to be evaluated. The attenuator for the channel routed to the aided ear should be set to 40 dB HL (comfort setting).

  • Page 58: Tone Decay Test

    As soon as the patient responds, begin timing by pressing the Start pushbutton of the scorer/timer. Record the number of seconds the tone sustains audibility with the Timer on the front panel of the GSI 61 (F17). If the tone becomes inaudible before the minute criteria is met, without interrupting the tone presentation, raise the intensity in 5 dB steps until the tone is heard for a full minute.

  • Page 59: Delayed Auditory Feedback (Daf)

    Chapter 4 - Special Test Procedures Delayed Auditory Feedback (DAF) If a person’s voice is recorded and played back with a delay of 0.1 to 0.2 seconds, the auditory feedback causes the speaker to slow down or alter his speech in a stuttering manner.

  • Page 60: Staggered Spondaic Word Test (Ssw)

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Staggered Spondaic Word Test (SSW) Using earphones or speakers in a sound field, and an external source of speech, establish the patient’s speech threshold relative to the three frequency, pure tone average for each ear.

  • Page 61: Doerfler-Stewart Test

    Chapter 4 - Special Test Procedures Doerfler-Stewart Test It is difficult to maintain consistent supra-threshold responses to auditory signals in the presence of several levels of noise in the same ear. Masking noise can cause confusion and interferes with the ability to judge the loudness of signals. Using earphones or speakers in a sound field, establish a recorded binaural spondee threshold (SRT ).

  • Page 62: Pure Tone Stenger Test

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Pure Tone Stenger Test If two tones identical in all ways except loudness are introduced simultaneously into both ears, only the louder tone will be perceived. Screening Procedure Assist the patient with the placement of earphones.

  • Page 63: Biological Calibration Check

    This fraying can decrease or increase the signal level or an intermittent signal as the cord is flexed. To check for either condition, turn on the GSI 61. Set the HL to a comfortably audible level. Activate both Interrupt buttons to ON. Bend the cord next to the plug at both ends of each earphone.
  • Page 64 To check the speech level with recorded speech, select Ext. A, Channel 1, and ensure an external CD player is plugged into the GSI 61. Place the earphones on a person with normal hearing – Less than 25 dB. Present a word list from the CD player at 40 dB. If intelligible speech is not heard with the Channel 1Hearing Level control set at 40 dB or less, the audiometer or the external device should be scheduled for technical service.

  • Page 65: Calibration Reference Levels

    Chapter 5 - Routine Maintenance Calibration Reference Levels It is recommended that each GSI 61 receive a thorough calibration certification once a year. If periodic checks are also desired, the tables in this section provide the SPL values per frequency for each transducer.
  • Page 66 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Bandwidths for Narrow Band Masking Sounds (Pass Band Upper and Lower Frequency Limits at 3 dB Points) Center Frequency, Hz Lower Limits, Hz Upper Limits Hz 105 -111 140 - 149 210 -223 281 - 297...
  • Page 67 Forehead Placement (ANSI 3.43 and ISO 7566) Frequency 750 1000 1500 2000 3000 4000 6000 8000 Speech* Radioear B71 with 79.0 72.0 61.5 51.0 47.5 42.5 42.0 43.5 51.0 50.0 63.5* dB re: 1 N non-occluded ear Tentative Speaker Reference Threshold Levels Re: 20 mPa Frequency...

  • Page 68: The Message "Cal

    The Message “Help” Should the message “Help” appear in the message area of the display, the GSI 61 will enter a lock out mode which will disable all front panel operations. In addition to the message “Help,” code numbers will appear. These numbers are important as they indicate the possible source of the problem.
  • Page 69 GSI 61 and is not accessible by the user. These settings are read on power up and the hardware is initialized appropriately.
  • Page 70 Stop Bits: Position #7 OFF = 1 Stop bit ON = 2 Stop bits (GSI 16 compatible) Position #8 This position is not used. The default settings are 9600 baud, no parity, 8 data bits, 1 stop bit, and hardware flow control.

  • Page 71: Usb Overview

    Compatible Print Languages PCL3 is the native print language of the GSI 61. A number of PCL print languages are considered to be supersets of PCL3 and should be compatible if implemented strictly to the specification.

  • Page 72: Driver Installation And System Setup

    Bar code is printed Remote Computer When the GSI 61 is connected to the computer, it will show up on the PC as a virtual COM port. The application will need to select that COM port. Generally, the serial port parameters (baud rate, stop bits, parity, handshaking, etc.) are then arbitrary and the virtual...

  • Page 73: Data Flow Control Operation

    61. If the RTS signal is false at the start of a transmission, or goes false during a transmission, the GSI 61 will wait for 6 seconds for the signal to return true. If this does not occur, the transmission is aborted and the error message “Not Available” will temporarily flash.

  • Page 74: Data Transfer

    Checksums Checksums will be calculated so as to maintain compatibility with the GSI 16 as the mod 256 sum of all preceding characters on the record, including the “:” prefix, and stored as two HEX ASCII characters.

  • Page 75: Remote Input Operation

    • must contain a valid function subcode when required. Acknowledgment The GSI 61 will acknowledge the correct reception and processing of all input records by transmitting an ASCII ACK character after the record has been processed. This record acknowledgment will not be sent if the GSI16 compatible record format has been selected.
  • Page 76 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Function Function Group Function Sub Code Pushbutton/ Code Subgroup Function Reserved for GSI 10 Channel 1 Stimulus “0” Tone “1” NB Noise “2” White Noise “3” Speech Noise “4” “5” Ext A “6” Ext B...
  • Page 77 Chapter 6 - Remote Options Function Function Group Function Sub Code Pushbutton/ Code Subgroup Function Reserved for GSI 10 Reserved for GSI 10 Reserved for GSI 10 Reserved for GSI 10 Test Frequency “0” Decrement Frequency “1” Increment Frequency Reserved for GSI 10 Channel 1 Tone Bar “0”...
  • Page 78 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Function Function Group Function Sub Code Pushbutton/ Code Subgroup Function 29 continued Transducer Type “2” Ch 1 Spk “3” Ch 1 Insert “4” Ch 2 Phone “5” Ch 2 Bone “6” Ch 2 Spk “7”...

  • Page 79: Type 6- Set Test Frequency Record

    Record being transmitted. Frequencies greater than 12 kHz are invalid if the GSI 16 compatible record format is selected and will also result in an error record being transmitted.

  • Page 80: Type 7 - Set Hl Record

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Input Record The record which is set by this record varies based on the operating mode indicated below. This record type is invalid in the Push Button Diagnostic, Display Diagnostic and Type 7 - Set HL Loopback Diagnostic modes and will result in an error record being transmitted.

  • Page 81: Remote Output Operation

    Chapter 6 - Remote Options Remote Output Operation These records are sent by the GSI 61 to the remote computer to transfer parameter or Output Record status information. During the time that an output record is being sent and transmitted, Type 1- GSI 16 the Data Transfer indicator is displayed on the LCD panel.
  • Page 82 5 continued SISI “4” =Reserved for GSI 10 “5” =On with 5 dB step size Timing “0” =None/Steady “1” =Reserved for the GSI 10 “2” =Pulsed 200/200 msec on/off Zero Field “00” Ch 2 Stimulus “1” =Tone “2” =NB Noise “3”...

  • Page 83: Type 4 - Error Record

    “0” = Off “1” = On Zero Field “00” HL Step Size “1” = 1 dB “2” = Reserved for GSI 10 “3” = 5 dB “4” = 2 dB Ch 1 Numeric “-100” to “1200” HL Display Data Range: -10.0 to 120.0 dB Ch 1 Interrupt “0”...
  • Page 84 Printing was unsuccessful due to communications or printer problem. Contains the current state of all instrument parameters, including the expanded frequency and HL ranges of the GSI61. This record is not GSI 16 compatible. Output Record Type 5 - GSI 61...
  • Page 85 “0” = Off “1” = On Tracking “0” = Off “1” = On Zero Field “00” HL Step Size “1” = 1 dB “2” = Reserved for GSI 10 “3” = 5 dB “4” = 2 dB 6-17 1761-0100 Rev. B...

  • Page 86: Type 6 - Test Battery Data Record

    Checksum See page 6-4; Checksums Record Terminator “CR,” “LF” Contains all left and right ear test data currently stored in the test data memory. This record is not GSI 16 compatible. Output Record Character Number of Data Type Field Name...
  • Page 87 Chapter 6 - Remote Options Character Number of Data Type Field Name Field Description Offset Characters slnt Pure Tone Test - -20 to 120 125 Hz Bone NR = 260 to 540 Conduction NT = 32768 (0x8000) Threshold- Test Ear slnt Pure Tone Test - -20 to 120 dB x 2...

  • Page 88: Speech Test

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Character Number of Data Type Field Name Field Description Offset Characters Pure Tone Test - See Pure Tone Test - 12.5 kHz 125 Hz fields Pure Tone Test - See Pure Tone Test -...
  • Page 89 Chapter 6 - Remote Options Character Number of Data Type Field Name Field Description Offset Characters SISI Test - 500 Hz See SISI Test - 125 Hz Fields SISI Test - 750 Hz See SISI Test - 125 Hz Fields SISI Test - 1 kHz See SISI Test - 125 Hz Fields...

  • Page 90: Alternate (Ablb)

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Alternate (ABLB) Character Number of Data Type Field Name Field Description Offset Characters slnt Alternate Test - -20 to 120 dB x 2 125 Hz Test Ear NR = 260 to 540 Threshold NT = 32768 (0x8000)

  • Page 91: Right Ear Test Data

    ASCII Record Terminator “CR,” “LF” Note: HL threshold values are transmitted as hexadecimal values scaled by 2. Output Record Contains the instrument type and software version information. This record is not GSI 16 Type 7 - compatible. Instrument Type Character Offset...

  • Page 92: Type 8 - Unit Configuration Record

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Output Record Contains the information on Dip Switch configuration selections. This record is not GSI 16 compatible. Type 8 - Unit Configuration Character Number of Field Name Field Description Record Offset Characters Record Prefix “:”...

  • Page 93: Test Words

    Appendix 1 -Test Words Appendix 1 This appendix consists of two parts. Part One contains an Alphabetical List of the Spondaic Words Used in Auditory Tests W-1 and W-2 (SRT). W-1 is a constant level recording; W-2 is a descending level recording. Part Two contains the words (PB Word Lists) used in Auditory Test W-22 (Discrimination).
  • Page 94 ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER List 2A 1. Yore (Your) 14. Now 27. Young 40. Off 2. Bin 15. Jaw 28. Cars 41. Ill 3. Way (Weigh) 16. One (Won) 29. Tree 42. Rooms 4. Chest 17. Hit 30. Dumb 43.
  • Page 95 Appendix 1 - Test Words Children’s Spondee List 1. Sidewalk 15. Mousetrap 29. Toothbrush 43. Necktie 2. Birthday 16. Cowboy 30. Dishpan 44. Ash Tray 3. Cupcake 17. Wigwam 31. Bathtub 45. Bedroom 4. Airplane 18. Coughdrop 32. Jackknife 46. Toy Shop 5.

  • Page 96: Bibliography

    Bibliography American National Standards Specifications for Audiometers (ANSI Standard S3.6-1989). American National Standards Specifications for Calibration of Pure Tone Bone Conduction Audiometers (ANSI Standard S3.43-1992). Acoustics - Standard Reference Zero for Calibration of Pure Tone Audiometers (ISO Standard 389-1975). Audiometers - International Electrochemical Commission (IEC 645 - 1992, 1993). Criteria for Permissible Ambient Noise During Audiometric Testing (ANSI Standard S3.1 - 1977).

  • Page 97: Bibliography For Test Procedures

    ® Grason-Stadler GSI 61 CLINICAL AUDIOMETER Morgan, Donald E., et al, Suggested Threshold Sound Pressure Levels for Frequency- Modulated (Warble) Tones in the Sound Field, “J. Speech and Hearing Disorders” XLIV, Feb. 1979, pp. 37-54. Reference Equivalent Threshold Force Levels for Audiometric Bone Vibrators (ANSI Standard S3.26 - 1981).

  • Page 98: Regulatory Symbols

    Regulatory Symbols Symbol IEC Pub. Description Symbol for "DO NOT REUSE" Symbol for "USE BY" Symbol for "BATCH CODE" Symbol for "SERIAL NUMBER" Symbol for "STERILE" STERILE Symbol for "STERILIZE", including the "METHOD FOR STERILE STERLIZATION Symbol for method of sterilization using irradiation STERILE Symbol for method of sterilization using steam or dry heat STERILE...
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