1. Manuals
  2. Brands
  3. Grason-Stadler Manuals
  4. Medical Equipment
  5. GSI 70
  6. User manual

Grason-Stadler GSI 70 User Manual

Automated oae screener
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
GSI 70
™
Part Number 1770-0100 Rev A
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

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the GSI 70 and is the answer not in the manual?

Questions and answers

Summary of Contents for Grason-Stadler GSI 70

  • Page 1 GSI 70 ™ Part Number 1770-0100 Rev A 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 70 Automated OAE Screener User Manual Date: November 2009 Copyright © 2005 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...
  • Page 3 OAE 4: 2 OUT OF 3 Selecting a Protocol 1. Turn the GSI 70 Automated OAE Screener on by pressing any button. (The Screener can be in the Printer/Charger cradle during this procedure.) 2. When the DPGram appears on the display, simultaneously press the LEFT (blue) and RIGHT (pink) buttons to enter the UTILITY MENU.
  • Page 4 Selection of protocol OAE 1 versus OAE 4 depends upon the program's performance objective for hearing screening. It is possible to save and print one ear with OAE 1 and the other ear with OAE 4. GSI 70 User Manual...
  • Page 5 OAE 4: 2 OUT OF 3 Selecting a Protocol 1. Turn the GSI 70 Automated OAE Screener on by pressing any button. (The Screener can be in the Printer/Charger cradle during this procedure.) 2. Once the DPGram appears on the display, simultaneously press the NAME (blue) and DATA (pink) buttons to enter the UTILITY MENU screen.
  • Page 6 If the results for the left and right ears are run with both default protocols (i.e., OAE 1 and OAE 4), the right and left ear results will be paired for printout in the time sequence that they were acquired. GSI 70 User Manual...
  • Page 7 Sample Printouts OAE 1: GSI Default OAE 4: 2 OUT OF 3...
  • Page 8 Addenda GSI 70 User Manual...

  • Page 9: Table Of Contents

    Contents Introduction ............1 Product Information ................. 1 About This Manual ................2 Conventions ................2 Product Symbols ................3 Getting Started ............5 Unpacking and Verifying Contents ..........5 Precautions................. 6 Automated OAE Screener Features ........... 7 Printer/Charger Features ............8 Setting Up the Automated OAE Screener .......
  • Page 10 Understanding the display........17 Common Displays ................. 17 Power-Up Display..............17 Version Information ............17 Blank DPGram ..............18 Completed DPGram ............19 Stored DPGram................ 20 Using the GSI70 Single-Patient Screener ... 21 Checking the Screener’s Performance ........... 21 Running a Test ................22 Message CHECK SEAL ............
  • Page 11 Stopping a Test ................ 38 Storing a Test ................38 Managing the Test Results ............. 39 Sending Test Results to the GSI 70 DMS ........ 39 Erasing a Test ................41 Reviewing a Test..............42 Printing a Test ................43 Printing All Tests for a Patient ...........
  • Page 12 Maintenance............51 Setting the Date and Time (GSI 70 Multi-Patient Screener Only) 53 Setting the Date and Time from the Computer ....53 Setting Date and Time Using the Touchscreen ....54 Cleaning ..................56 Cleaning the Housings, Display, and Cables ......56 Cleaning the Probe Tips............
  • Page 13 Guide to Otoacoustic Emmissions ...... 75 What are Otoacoustic Emissions? ..........77 How is an OAE Generated and Detected?........77 Testing with the GSI 70 Automated OAE Screener ...... 77 Service and Warranty Information...... 79 Warranty for the Screener and Printer/Charger......79 Repair.....................
  • Page 14 Optional Charging Transformer Specifications ......97 Dimensions ................98 Index ..............Index-1...

  • Page 15: Introduction

    This manual describes how to operate and maintain the GSI 70 and Printer/Charger. Please follow these instructions to ensure many years of accurate and reliable service. For additional information on the technology used in the GSI 70, see the Guide to Otoacoustic Emissions on page 77.

  • Page 16: About This Manual

    Indicates patient safety alerts. Also indicates that a specific action could cause harm to your instrument or result in lost data. Indicates an electrical danger to you or a patient. Follow the guidelines in the manual or on the instrument itself when handling electrical equipment. GSI 70 User Manual...

  • Page 17: Product Symbols

    Product Symbols Product Symbols The symbols on the GSI 70 Automated OAE Screener and Printer/Charger Module (PCM) are defined below. Table 1 – Product Symbols Symbol Means Refer to User Manual. Disconnect from the Mains. Disassembly of the Screener, Probe/Pod, or Printer/Charger beyond the extent described in this manual voids the warranty.
  • Page 18 Chapter 1 Introduction GSI 70 User Manual...

  • Page 19: Getting Started

    Complete and return the warranty registration card. It validates the warranty and allows Grason-Stadler to send announcements of product enhancements. When you unpack your new GSI 70 Automated OAE System, verify that the following items are included: Automated OAE Screener ■...

  • Page 20: Precautions

    The stylus has a pointed end. Keep stylus out of reach of infants and small children. 9 Access Door for Battery and Language Selector Switches 10 Connector for Charging Transformer and Footswitch 11 Charging Contacts for Battery 12 Infrared Port Window GSI 70 User Manual...

  • Page 21: Automated Oae Screener Features

    Unpacking and Verifying Contents Automated OAE Screener Features Use this figure to familiarize yourself with the features of the Screener, Pod, and Probe. 2, 3, 4 Automated OAE Screener, Pod and Probe Features...

  • Page 22: Printer/Charger Features

    For more information, see Troubleshooting on page 69. 4 Battery LED Off — No Screener in Charger On — Screener seated correctly in Charger, and charging 5 IrDA port for communication with Screener 6 Charging contacts for recharging Screener GSI 70 User Manual...
  • Page 23 Unpacking and Verifying Contents Printer/Charger Features (Rear View) 1 Fuse drawer and Mains power connector 2 Paper cover Push here and lift up to open. 3 RS-232 connector for attaching the Printer/Charger to a computer (for use with the GSI 70DMS Software only)

  • Page 24: Setting Up The Automated Oae Screener

    The rolling stand lets you move the Screener, Printer/Charger , a box of eartips, and spare rolls of printer paper easily from patient to patient in a large nursery, or onto an elevator for use in multiple departments. GSI 70 User Manual...

  • Page 25: Checking The Battery

    2. Release the locking mechanism once the Printer/Charger is fully in place. Checking the Battery To check the battery, turn on the GSI 70 Automated OAE by pressing any button. If you see a low-battery icon ( ) in the upper-right area of the display, you need to ■...

  • Page 26: Installing The Gsi 70Dms Software Into Your Computer

    EXIT. The blank DPGram screen appears, and the Single- Patient Screener is ready for testing. For Multi-Patient models, see Using the GSI 70 Multi-Patient Screener on page 29. Installing the GSI 70DMS Software into your Computer Multi-Patient Screeners require the GSI 70DMS software to communicate with your computer.

  • Page 27: Connecting The Printer/Charger To Mains Power

    3. Attach the female end of the cable to the serial port and tighten the thumbscrews. 4. To make sure the computer establishes communications with the Printer/Charger, start the GSI 70 Data Management Software (DMS) and configure the port. See the GSI 70 DMS manual for more information.

  • Page 28: Preparing For A Test

    Refer to Table 2. (Approximations only) Eartip Size 3 – 5 mm Newborns 5 – 6 mm Infants 6 – 9 mm Young Children 9 – 14 mm Adults (Age 10 and up) GSI 70 User Manual...

  • Page 29: Attaching An Eartip To The Probe Tip

    Preparing for a Test Attaching an Eartip to the Probe Tip To attach an eartip to the probe tip: 1. Slide and twist the eartip clockwise onto the probe tip until the eartip is seated snugly against the junction where the probe tip widens (see below). 2.

  • Page 30: Securing The Pod And Probe To The Screener

    Screener. To remove the Pod, slide it forward and pull it out of the circular opening. Gently insert the Probe into the opening on the Pod until it fits snugly. It is not necessary to force the Probe into a secure position. GSI 70 User Manual...

  • Page 31: Understanding The Display

    Understanding the display Common Displays This section describes the displays and messages common to the GSI 70 Single-Patient and Multi-Patient Automated OAE Screeners. Power-Up Display When you turn on the Screener, it performs a brief self-test. Power-Up Display Version Information To see the software and hardware versions of the Screener, press VER #S as soon as or before the Power-Up screen appears.

  • Page 32: Blank Dpgram

    See Recharging the Battery on page 59. The GSI 70 will not allow testing if the battery charge is too low for valid testing. The line across the middle of the graph represents the pass/refer line. See Reviewing ■...

  • Page 33: Completed Dpgram

    Stimulus Frequencies Reoriented 90 Degrees Completed DPGram As the GSI 70 conducts a test, the display shows the: Response from the outer hair cells within the cochlea, called the distortion product or ■ Averaged noise level within the ear canal, called the noise floor or NF ■...

  • Page 34: Stored Dpgram

    LEFT ear or RIGHT ear. NAME DATA NAME DATA Stored DPGrams: Left and Right The DPs change from solid circles to standard audiometric symbols, according to which button you pressed: (Blue Button) Left arE (Pink Button) Right arE GSI 70 User Manual...

  • Page 35: Using The Gsi70 Single-Patient Screener

    Using the GSI70 Single-Patient Screener This chapter describes the operation of the Single-Patient GSI 70 Automated OAE Screener: Daily check of the Screener’s performance ■ Running a test ■ Storing a test ■ Printing a test ■ Stopping a test ■...

  • Page 36: Running A Test

    Running a Test 1. Remove the Screener from the Printer/Charger cradle and press any button on the GSI 70 Automated OAE Screener to turn it on. After a few seconds, the blank DPGram will appear if no prior results are stored in memory.

  • Page 37: Message Check Seal

    When the seal is acceptable, the GSI 70 Automated OAE Screener restarts the test automatically and redisplays TESTING OAE. If a second seal problem occurs, the GSI 70 Automated OAE Screener stops the test. The display shows: OAE TEST COMPLETE ■...

  • Page 38: Storing A Test

    To review a stored test: 1. Press LEFT or RIGHT to recall the data for that ear to the screen. If there is no stored data for the button you pressed, the GSI 70 Automated OAE Screener displays NO TEST TO RECALL.

  • Page 39: Contents Of The Printout

    Printing a Test If you remove the Screener before the printer receives all the data, the message REMOVED TOO SOON appears on the Screener display and the printer. 4. To continue testing, wait until the printout begins (about three seconds after you press print) then remove the Screener from the Printer/Charger cradle.

  • Page 40: Canceling The Printout

    To stop a test in progress: 1. Press the Pod button. The GSI 70 Automated OAE Screener displays OAE TEST COMPLETE ABORT and any data collected to that point. If you press RIGHT or LEFT after stopping a test in progress, the Screener saves the stopped test and overwrites any previously stored data for that ear.

  • Page 41: Power-Saving Mode

    Press and hold LEFT or RIGHT for four seconds and then release the button. The data ■ is cleared and the GSI 70 Automated OAE Screener displays DATA ERASED. If there is nothing to erase, the GSI 70 Automated OAE Screener displays NO TEST TO ERASE. Power-Saving Mode The Screener has a power-saving mode that preserves the battery’s charge when you are...

  • Page 42: Low-Battery Icon

    You then have up to eight minutes in which you can conduct and store about six more tests. The GSI 70 Automated OAE Screener will not allow a test to begin unless there is sufficient battery charge to complete the test.

  • Page 43: Using The Gsi70 Multi-Patient Screener

    Using the GSI70 Multi-Patient Screener The GSI 70 Multi-Patient Screener lets you transfer a list of up to 150 names or identification numbers from a computer running the GSI 70 DMS (Data Management Software) for the patients you need to test. You can also enter patient names or ID numbers with the stylus and the touch screen.

  • Page 44: Setting Up The Screener

    IrDA port on the computer. See the GSI 70 DMS manual for the steps to install and start the software and select the patients to test. See Connecting the Printer/Charger to Mains Power on page 13 or Connecting the Optional IrDA Adapter to a Computer on page 12.

  • Page 45: Entering Patient Names Or Id Numbers From The Screener

    Entering Patient Names or ID Numbers from the Screener The GSI 70 Multi-Patient Screener lets you enter a patient name or ID number as you work. Use this feature when you need to test a patient whose name or ID is not in the GSI 70 DMS database.
  • Page 46 The Screener displays a blank DPGram, with the name or ID number you just entered across the top. The Screener is ready to test this patient. All the tests you run are associated with this patient until you select another name or ID number. GSI 70 User Manual...

  • Page 47: Selecting A Patient From The List

    Selecting a Patient from the List Once you transfer a list of patient names or ID numbers from the GSI 70 DMS, you can select the patient to test from the SELECT PATIENT NAME screen as you work. When you select a patient, all the tests you run are associated with that patient until you select another name or ID number.

  • Page 48: Erasing A Patient Name From The List

    SELECT. The protocol will be selected and the Utilities Menu will be displayed again. 4. Scroll down to EXIT on the Utilities Menu and press RUN. The new protocol is ready to be used for testing. GSI 70 User Manual...

  • Page 49: Transferring A New Test Protocol From The Computer

    IrDA port on the computer. See the GSI 70 DMS User’s Guide for the steps to install and start the software and select the protocol to transfer. See Connecting the Printer/Charger to Mains Power on page 13 or Connecting the Optional IrDA Adapter to a Computer on page 12.
  • Page 50 You will be asked to confirm your intention to erase the highlighted protocol. Touch YES to complete the delete operation. The highlighted protocol will be removed from the Screener’s memory and from the SELECT PROTOCOL screen. The facory default protocol in location #1 cannot be erased. GSI 70 User Manual...

  • Page 51: Testing Patients

    This section assumes that you have set the date and time, selected a new test protocol if necessay, and either: Transferred a list of patients from the GSI 70 DMS and selected one of them to test, ■ Entered a new patient name or ID number from the Screener touchscreen via the ■...

  • Page 52: Message Check Seal

    To stop a test in progress: Press the green Pod button. ■ The GSI 70 Automated OAE Screener displays OAE TEST COMPLETE ABORT and also displays data collected to that point. To erase the aborted test, press the CLEAR (green) button on the Screener.

  • Page 53: Managing The Test Results

    To download test results to the computer: 1. In the GSI 70 DMS, select the COLLECT RESULTS tab. Click on the Collect Results Button. See the GSI 70 DMS manual for details. 2. On the Screener, display the DATA screen by doing one of the following: If the Screener shows a DPGram, press DATA ■...
  • Page 54 Screener begins to automatically download the selected tests to the computer, the TRANSFERRING message appears. Hold the Screener steady or leave it in the Printer/Charger until the message TRANSFER COMPLETE appears. See the GSI 70 DMS manual for information on working with the transferred test results. GSI 70 User Manual...

  • Page 55: Erasing A Test

    Managing the Test Results Erasing a Test At any time, you can erase tests from the Screener. For instance, after you download test results to the computer, you can erase those results from the Screener’s memory to provide space for additional tests. A patient’s test sequence numbers represent the order in which the tests were performed.

  • Page 56: Reviewing A Test

    To select both a test category and individual tests from the list, touch the test ■ category and then touch the additional tests you want to review. (With this option, the test category name becomes unhighlighted, but the tests within that category, and all additional tests you select, remain highlighted.) GSI 70 User Manual...

  • Page 57: Printing A Test

    Managing the Test Results 3. Touch DISPLAY. The Screener displays the DPGram for the first test you selected. The patient’s name or ID number and the test sequence number appear on the first line, and the ear tested and result appear on the next line. In display mode, the left (blue) and right (pink) buttons on the Screener are marked with left and right arrows, allowing you to scroll through the selected tests.

  • Page 58: Printing All Tests For A Patient

    To select both a test category and individual tests from the list, touch the test ■ category and then touch the additional tests you want to review. (With this option, the test category name becomes unhighlighted, but the tests within that category, and all GSI 70 User Manual...

  • Page 59: Printing Individual Test Results

    Managing the Test Results additional tests you select, remain highlighted). 3. Place the Screener in the (powered) Printer/Charger cradle. 4. Press PRINT. The Screener downloads all the selected tests to the PCM, and automatically pairs the results for each patient. If there is only one test for a patient, that test appears on it own printout.
  • Page 60 DPGram frequencies for test protocols containing more than 3 stimulus frequencies are reoriented 90 degrees along the horizontal axis. Printout of Test Results for Both Ears GSI 70 User Manual...

  • Page 61: Canceling The Printout

    Power Down Canceling the Printout To stop a printout in process: Press PRINT. ■ The printer immediately stops printing the test, and prints Print cancelled on the next line. Advancing the Paper To advance the paper, do one of the following: Press PAPER ADVANCE.

  • Page 62: Low Battery Icon

    You then have up to eight minutes in which you can conduct and store about six more tests. The GSI 70 Automated OAE Screener will not allow a test to begin unless there is sufficient battery charge to complete the test.

  • Page 63: Reviewing The Test Results

    (signal- to-noise) are extremely good at 11 dB (2k), 20 dB (3k), and 20 dB (4k), respectively. The GSI 70 Automated OAE Screener scores the test result as a PASS when the OAE responses are above the...

  • Page 64: Test Result Refer

    In this example, the OAE response at 2k, 3k, and 4k Hz are 1 dB, 2 dB, and -15 dB, respectively. The noise floor at each frequency is sufficiently low to allow the GSI 70 Automated OAE Screener to reliably measure for an OAE response. The OAE response is also very low in intensity at 4k Hz.

  • Page 65: Test Result Noise

    Test Result NOISE A response is scored as NOISE when there is either too much biological or room noise present while performing the test. This noise prevents the GSI 70 from being able to accurately measure the presence of an OAE response.

  • Page 66: Test Result Abort

    Screener stops collecting data when the eartip’s seal in the ear is broken. However, you should run a new test, since the result ABORT does not indicate the test status as a PASS or a REFER. GSI 70 User Manual...

  • Page 67: Setting The Date And Time (Gsi 70 Multi-Patient Screener Only)

    Setting the Date and Time (GSI 70 Multi-Patient Screener Only) You can set the date and time in the GSI 70 Multi-Patient Screener so that test results you print or send to the computer will contain a date and time record. There are two ways to...

  • Page 68: Setting Date And Time Using The Touchscreen

    Chapter 7 Maintenance See the GSI 70 DMS manual for the steps to install and start the software. Also see Connecting the Printer/Charger to Mains Power on page 13 or Connecting the Optional IrDA Adapter to a Computer on page 12.
  • Page 69 Setting Date and Time indicates an invalid date for February 29 in a non-leap year. To set the date and time from the touchscreen: 1. Press any button to turn on the Screener. The Screener performs a brief self-test and displays one of the following screens depending on its state the last time someone used the Screener: Last test stored ■...

  • Page 70: Cleaning

    The eartips are intended for a single use only. Discard after use. Cleaning the Housings, Display, and Cables To clean the exterior of the GSI 70 Automated OAE Screener (including the display), the Pod and Printer/Charger, and the cables, use a lint-free cloth moistened with either: Plain water ■...

  • Page 71: Removing The Probe Tip

    Cleaning There are three parts to the probe tip cleaning process: Removing the probe tip from the probe ■ Cleaning the probe tip ■ Attaching the probe tip to the probe ■ Removing the Probe Tip The probe tip is held in place by three tabs that fit into notches in the probe. The probe tip sits on a firm rubber gasket that provides pressure to hold the probe tip in place.

  • Page 72: Attaching The Probe Tip To The Probe

    Disconnect the Printer/Charger from Mains power before cleaning the charging contacts. Use a lint-free cloth moistened only with water to clean: Charging contacts in the Printer/Charger ■ Infrared port windows on the Screener and the Printer/Charger ■ GSI 70 User Manual...

  • Page 73: Recharging The Battery

    Recharging the Battery Recharging the Battery To recharge the battery, do one of the following: Plug the Printer/Charger into the Mains outlet. Place the Screener in the Printer/ ■ Charger cradle. Connect the round DIN connector of the optional Charging Transformer to the ■...

  • Page 74: Removing Or Replacing The Battery

    3. Press the tab on the battery connector and pull the two halves apart. Lift out the battery. 4. Align the connector on the replacement battery with the connector in the Screener, and slide the connector in until the tab locks into place. You will hear a click when it locks. GSI 70 User Manual...

  • Page 75: Disposing Of The Battery

    Removing or Replacing the Battery Install the battery as shown. The two parts of the connector are keyed and fit together only one way. 5. Replace the battery cover by sliding the cover’s tab into the notch in the Screener, then fitting the cover into place.

  • Page 76: Checking The Screener

    This is a simple test to perform and indicates that the Screener is working properly. Grason-Stadler recommends using the Quick Check Cavity at least daily. For example, your department or facility might decide to check the Screener at the start of each shift.

  • Page 77: Quick Check Passed

    1. Press NEXT to return to normal testing mode. 2. See Using the Single-Patient Screener on page 21, or Using the GSI 70 Multi-Patient Screener on page 29. Quick Check Failed 1. Inspect the tubes in the probe tip. The tubes may be blocked with cerumen or other material.

  • Page 78: Calibrating The Touchscreen

    2. Press the left (blue) and right (pink) buttons simultaneously. The UTILITIES MENU appears. Single-Patient Model Multi-Patient Model 3. Press the down arrow to move the cursor to the TOUCH CALIBRATE option, and then press RUN. GSI 70 User Manual...

  • Page 79: Checking The Printer/Charger

    Checking the Printer/Charger The TOUCHSCREEN CALIBRATION screen appears. 4. Use the stylus (stored in the body of the Screener) to press the small box on the display. Use steady pressure and do not let the point of the stylus slip. Hold the stylus on this box until the NEXT message appears, and then remove the stylus.

  • Page 80: Printing A Test Pattern

    If the test pattern does not print out or if you see any flashing LEDs, consult Table 4 on page 74. About the Printer Paper Use only: Heat-sensitive paper available from Grason-Stadler (#1738-9600). ■ Adhesive-backed paper available from Grason-Stadler (#1770-9602). ■...

  • Page 81: When To Replace The Paper

    Checking the Printer/Charger Only one side of the paper is thermally active; no printing will appear on the paper if you insert it backwards. Do not use transparent adhesive tape on printed portions of the printout, as those portions will fade. When to Replace the Paper Replace the paper roll in the Printer/Charger when either of the following happens: A pink strip appears along the edge of the paper, indicating the paper is nearing the end...
  • Page 82 8. Replace the printer cover, first inserting the tabs into the notches, then pressing the back edge down until it clicks into place. 9. Replace the eartip box in the well. The POWER/STATUS LED stops flashing, and the Printer/Charger is ready to print tests. GSI 70 User Manual...

  • Page 83: Troubleshooting

    Troubleshooting This chapter covers: Error messages that may appear on the Screener ■ Possible causes and solutions for problems with the Screener or Printer/Charger ■ Error Codes If an error message followed by two sets of numbers appears on the display, for example: ERROR 25 802 ERROR 5017 14 indicates the Screener requires service before you can use it again.

  • Page 84: Troubleshooting Tips

    Make sure the Screener has a battery installed. See Removing or Replacing the Battery on page 60. Table 3 – Troubleshooting Guide for the Screener Problem Possible Cause Solution Screener will not turn on Battery drained Charge the battery. See Recharging the battery on page 59. GSI 70 User Manual...
  • Page 85 Troubleshooting Tips Table 3 – Troubleshooting Guide for the Screener (Continued) Problem Possible Cause Solution Screener will not run Screener in Remove Screener from tests (LED blinks but no Printer/Charger Printer/Charger cradle and try again. test starts) cradle (Screener will not run tests while in contact with power source) Screener connected Unplug from Charging Transformer...
  • Page 86 Screener, plug large square end into Mains (wall) outlet. See Recharging the Battery on page 59. Cannot see anything on Contrast is out of See Adjusting the LCD Contrast Screener display, but adjustment on page 11. LCD is illuminated GSI 70 User Manual...
  • Page 87 Troubleshooting Tips Table 3 – Troubleshooting Guide for the Screener (Continued) Problem Possible Cause Solution Yellow LED appears on Probe not seated Reposition eartip in ear canal. Align properly in ear canal eartip straight in for adults and children, slightly anterior for infants and newborns.

  • Page 88: Printer/Charger Module Problems

    Representative. PCM or Screener has an internal malfunction. Infrared port Inspect and clean Infrared port window is blocked windows in PCM and on Screener. or dirty. See Cleaning the Housings, Display, and Cables on page 56. GSI 70 User Manual...

  • Page 89: Guide To Otoacoustic Emmissions

    Troubleshooting Tips Table 4 – Troubleshooting Guide for the Printer/Charger (Continued) Problem Possible Cause Solution Printer does not print Printer is out of Replace paper. anything paper. See Replacing the Paper on page Infrared port Inspect and clean Infrared port window is blocked windows in PCM and on Screener.
  • Page 90 If LED still flashes, call your local Service Representative. You can still use the Printer/Charger to charge the Screener. Pink strip appears on Paper is almost used Replace paper. paper See Replacing the Paper on page GSI 70 User Manual...

  • Page 91: What Are Otoacoustic Emissions

    To identify these effects, measure the status of the middle ear using tympanometry screening whenever possible. Testing with the GSI 70 Automated OAE Screener The GSI 70 Automated OAE Screener uses Distortion Product Otoacoustic Emissions. Distortion Product Otoacoustic Emissions are emissions resulting from the presentation of a series of primary tone pairs.
  • Page 92 Thus, the system can disregard any other tones that are present in the ear canal—making DPOAE testing far less sensitive to room noise than other test methods. The GSI 70 Automated OAE Screener displays DPGrams as a function of the F2 frequency.

  • Page 93: Service And Warranty Information

    Service and Warranty Information Warranty for the Screener and Printer/Charger Grason-Stadler warrants the GSI 70 Automated OAE Screener and Printer/Charger to be free of original defects in material and workmanship and to perform in accordance with manufacturer’s specifications for a period of one year from the date of purchase. If this instrument or any component thereof is found to be defective or at variance from the manufacturer’s specifications during the warranty period, Grason-Stadler will repair,...

  • Page 94: Recalibration

    Fax: 952-278-4401 Recalibration Grason-Stadler recommends that the GSI 70 Automated OAE Screener be recalibrated annually. You can make arrangements for calibration by contacting an authorized Grason- Stadler representative. A moderate fee is charged for recalibration. The Printer/Charger does not require calibration.

  • Page 95: Replacement Parts And Accessories

    Replacement Parts and Accessories Ordering Information To order replacement parts or accessories, contact your local Grason-Stadler representative or call the Customer Service Department in Eden Prairie, MN.

  • Page 96: Eartips

    Eartip Starter Kit - 1770-9660 (four each sizes 3.5 - 14mm) Table 6 – Replacement Eartips Bulk Quantity of 25 each Size Group Part Number 3.5 - 7 mm Infant 1770-9662 7 - 11 mm Child/Adult 1770-9663 10-14 mm Adult 1770-9664 GSI 70 User Manual...

  • Page 97: Screener Parts And Accessories

    97 or call Customer Service. 1770-9615 Battery Charger Accessory that charges a spare battery while the Screener is in (North America) GSI 70 Automated OAE Single–Patient Model: 1770-9708 Screener Only 1770-9705 Multi–Patient Model: Upgrade Kit for Screener Upgrades a Single–Patient 1770-9630 Screener to a Multi–Patient...
  • Page 98 Table 7 – Screener Parts and Accessories (Continued) Item Description / Comments GSI Part Number Footswitch Allows hands-free operation 1770-9676 (starting tests) Rolling Stand with Shelf Supports Screener in holder, 1770-9675 Printer/Charger and eartips on shelf Stylus Used with Multi-Patient 1770-6020 touchscreen GSI 70 User Manual...

  • Page 99: Printer/Charger Parts And Accessories

    Complete replacement, including two rolls of 1770-9710 paper Training material Video tape and instructional booklet 1770-9695 Consisting of: Instructional Booklet, GSI 70 (1770-0195) Video tape VHS USA (1770-9693) Training material Video tape and instructional booklet 1770-9696 (International) Consisting of: Instructional Booklet, GSI 70 (1770-0195)
  • Page 100 Chapter 11 Replacement Parts and Accessories GSI 70 User Manual...

  • Page 101: Specifications

    Specifications General Specifications The specifications common to all the major components of the GSI 70 Automated OAE Screener System are listed in Table 9. Specifications that apply only to the individual components appear in the section for that component. Table 9 – General Specifications...
  • Page 102 (hospital grade) Electrical Input voltage: 7.2 V Charging contacts: output supplied by battery voltage +24 VDC + 1% Battery provides power for testing up to 100 ears over an eight-hour period without recharging GSI 70 User Manual...
  • Page 103 General Specifications Table 9 – General Specifications (Continued) Screener Printer/Charger Charging Transformer Pod Connector Function Switched Battery, 6.0 - 8.6 VDC DC Ground Pod Detect, Input, Zin - 10KOhm Start Button, Input, Zin=10Ohm Serial Data, Bidirectional, Zin=10KOhm, Zout=1KOhm Serial Select, Output, Zout=1KOhm Spare Serial Clock, Output, Zout=1KOhm Home, Input, Zin=10KOhm...
  • Page 104 Interface: Provides communications with the Screener through an infrared link. Operation Time Test Time: Sixty Print Time: 10 seconds seconds maximum, from time of seal to completion of data acquisition for one ear, without error conditions. GSI 70 User Manual...

  • Page 105: Gsi 70 Automated Oae Screener Specifications

    GSI 70 Automated OAE Screener Specifications GSI 70 Automated OAE Screener Specifications This section covers the specifications that apply only to the Screener. Charging Time Ten-hour nominal charge time for completely discharged battery. ■ Probe Tones and Test Protocol The tone generation of this product complies with ANSI S3.6 1996 and IEC 645-1 ■...

  • Page 106: Display

    1.763 in x 1.763 in (49mm x 49mm) minimum viewing area ■ Viewing cone of 60° (maximum) ■ Touch Sensitive (in Multi-Patient models only). Responds to pressure from a stylus. ■ Stylus required to select or enter patient name/ID and display stored results. GSI 70 User Manual...

  • Page 107: Dimensions

    GSI 70 Automated OAE Screener Specifications Dimensions The United States (Imperial) dimensions appear first, with the metric value in parentheses. 3.8 in (9.65 cm) 2.9 in (7.4 cm) 9.3 in (23.6 cm) 2.4 in (6.1 cm) 40.0 in (101.6 cm) 32.0 in...

  • Page 108: Dip Switch Functions

    Location and Orientation of DIP Switches Changing the Language Setting for the Screener Grason-Stadler ships the Screener in one of four languages: English, French, German, and Spanish. However, you can change the language setting if necessary. Hold the Screener in one hand as you follow the procedure, making sure that you do not press the left or right buttons.
  • Page 109 GSI 70 Automated OAE Screener Specifications To change the language setting: 1. Using your thumb or a flathead screwdriver (a thin coin or paper clip will also work), turn the battery cover screw counterclockwise approximately one-half turn. 2. Pull gently on the screw until the cover lifts out. Set the cover aside.

  • Page 110: Printer/Charger Specifications

    Pink end-of-roll indicator ■ Approximate number of printouts per roll: 175 ■ Adhesive-Backed Paper 4.37 in. wide x 27 ft. long (111 mm wide x 8.2 m long) ■ Approximate number of printouts per roll: 55 ■ GSI 70 User Manual...
  • Page 111 Optional Charging Transformer Specifications Optional Charging Transformer Specifications This section covers the specifications that apply only to the Charging Transformer. The Charging Transformer is available in the configurations listed in the table below for most countries’ electrical requirements. Table 12 – Charging Transformer Electrical Specifications Country Transformer Voltage...
  • Page 112 3.25 (8.25) 1.90 (4.83) 1.12 ( 0.51) 8000-0261 2.20 (5.58) 3.25 (8.25) 1.90 (4.83) 1.02 ( 0.46) 8000-0262 2.40 (6.09) 3.30 (8.38) 1.90 (4.83) 1.10 (0.50) 8000-0250 2.10 ( 5.33) 3.20 (8.38) 1.72 (4.37) 1.18 (0.54) GSI 70 User Manual...
  • Page 113 Index calibration 80 cancelling a printout 47 cancelling a test. See stopping a test change the current test protocol 34 changing language in Screener 95 charging contacts ABORT test result 23, 38, 52 cleaning 58 aborting a test. See stopping a test charging transformer about 66 connecting to Screener 59...
  • Page 114 erasing characters on touchscreen 32 error DATA ERASED message 27 during a test 65 DATA screen indicator on Printer/Charger 65, 67 numbers on top line 39 out of paper 65, 67 date and time error codes 69 resetting after removing the battery 53 explanation of symbols and markings 3 setting from computer 53 setting from touchscreen 55...
  • Page 115 battery 8 packing list 5 on the Pod paper green, defined 6 adhesive 96 green, ON 37 advancing 47 yellow, defined 6 indicator 65 on the Printer/Charger pink strip on edge 67 POWER/STATUS 8, 66, 68 replacing 67 loading patient names from computer specifications 96 30, 35 storing 66...
  • Page 116 printing all tests for a patient 44 Screener autopairing of tests 44 attaching Pod 16 selected tests 44 buttons and features 8 test pattern 66 dimensions 93 test results 25 power-down 27 tests 43 power-saving mode 27 printout setup 10, 30 cancelling 47 specifications 90–94 contents 25, 45...
  • Page 117 storage troubleshooting 69 battery removal for 61 turning off the Screener 47 stored DPGrams 20 turning on the Screener 11 storing paper 66 test 24, 38 unpacking and verifying contents 5 symbols and markings 3 unpaired test printing 43 using Technical Service Department address printer/charger 24 Screener 21–28, 29–48...
  • Page 118 Index - 6...
  • Page 119 Notes...
  • Page 120 Notes...

Table of Contents