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GSi 18 User Manual

GSi 18
47 pages
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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
GSI 18
Part Number 1718-0100 Rev E
USER MANUAL
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GSi 18 Specifications

General IconGeneral
BrandGSi
Model18
CategoryMeasuring Instruments
LanguageEnglish

Summary

Supplied Accessories

Safety Summary

Safety Notes

Customer Responsibility

Warranty

Specifications

Frequency Range

Specifies the discrete frequencies and accuracy of the GSI 18 audiometer.

Intensity

Details the intensity ranges, accuracy, and signal-to-noise ratio for the GSI 18.

Power

Information on AC power supply and battery types for operating the GSI 18.

Environmental

Operating and storage conditions for the GSI 18, including temperature and humidity.

Mechanical

Physical dimensions and weight of the GSI 18 unit.

Electromagnetic Compatibility

Chapter 1 Introduction

Unpacking and inspection

Instructions for checking the GSI 18 upon arrival and initial inspection procedures.

Recycling / disposal

Guidelines for the proper recycling and disposal of the GSI 18 and its electronic components.

Installation

Step-by-step guide for setting up and connecting the GSI 18 audiometer.

Rear panel connectors

Identifies and explains the purpose of each connector on the rear panel of the GSI 18.

Bottom panel

Details the components and labels located on the bottom of the GSI 18 unit.

Controls and indicators

Explains the functions of the front panel controls and indicators on the GSI 18.

LCD display

Describes the icons, LEDs, and numerical displays on the GSI 18's LCD screen.

AC power

Information on using the AC power supply, including connection and disconnection for the GSI 18.

Battery operation

Covers battery use, types, capacity, and low battery indication for the GSI 18.

Removing batteries

Step-by-step guide on how to properly remove batteries from the GSI 18.

Placing new batteries

Instructions for correctly inserting new batteries into the GSI 18 battery compartment.

Chapter 2 Operation

Preliminary check

Steps to perform before starting audiometric tests with the GSI 18.

Pretest noise recovery period

Importance of subject recovery from noise exposure before conducting hearing tests.

Test environment

Guidelines for selecting an appropriate and quiet environment for accurate audiometric testing.

Providing patient instructions

How to effectively communicate test procedures and expectations to patients.

Placing the earphones

Proper techniques for positioning earphones on the patient for reliable test results.

Response handswitch

Information on using the optional response handswitch for patient feedback during tests.

GSI Audiogram Form

Details the structure and use of the GSI 18 audiogram form for recording test data.

Routine test administration

Procedures for conducting standard audiometric tests using the GSI 18 unit.

Transducer selection

How to choose between headphone and insert earphone transducers for testing.

HL knob

Explanation of the Hearing Level (HL) knob for setting stimulus intensity levels.

Range Extension pushbutton

How to use the +10 dB button to extend stimulus intensity limits for testing.

Tone Type selector

Options for selecting tone types (steady, pulsed, FM) for test presentation.

Typical testing session

Overview of a standard audiometric testing session workflow and steps.

Pretest review

Steps for reviewing and preparing the subject and equipment for the test session.

Familiarization

Procedures for familiarizing the subject with test tones and the testing process.

Determining the threshold (Pure Tone)

Method for finding the patient's hearing threshold using pure tone stimuli.

Testing procedure

Recommended sequence and steps for conducting pure-tone audiometric tests.

Chapter 3 Routine Maintenance

Preventive maintenance

General recommendations for maintaining the GSI 18 and headset to maximize service life.

Cleaning the GSI 18

Instructions for cleaning the exterior surfaces of the GSI 18 unit.

Cleaning and Disinfecting Agents

Recommended agents for cleaning and disinfecting audiometric equipment and parts.

Cleaning patient contact reusable devices

How to clean parts that come into direct contact with the patient for hygiene.

Routine calibration check

Procedures for performing biological calibration checks to ensure accuracy.

Earphone cords

How to check for wear and damage on earphone cords that may affect signal integrity.

Hum and random noise

Steps to detect and address hum or random noise issues affecting test accuracy.

Distortion and frequency shift

How to check for sound distortion or frequency inaccuracies in the GSI 18 output.

Special messages

Explains error messages displayed on the GSI 18's LCD screen and their meaning.

Cal

Description of the 'CAL' message indicating a calibration error on the GSI 18.

Exx

Explanation of 'Exx' error codes and troubleshooting steps for GSI 18 system errors.

Appendix A GSI Country Kits

Appendix B Reference Threshold Values

Bibliography

Index

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