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Summary of Contents for Micro Audiometrics Earscan 3 ES3M
- Page 1 Earscan ® ES3M Manual Pure Tone Audiometer User’s Manual Rev 1.05 Micro Audiometrics ®...
- Page 2 3. Use only the factory-supplied, medical grade power adaptor (wall cube) with the ES3M. Use of any other power adaptor will invalidate the warranty and may result in damage to the audiometer. Copyright © 2006-2024 Micro Audiometrics Corporation.
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Page 3: Table Of Contents
Table of Contents Introduction ......................4 Basic Operation ..................4 The Menu System .................. 5 ES3M Setup ......................6 Cable Connections ................. 6 Power Up ....................6 Manual Audiometry .................... 7 Testing Procedure .................. 7 Quantifying Hearing Loss ..............8 Talk Over ....................8 Audiometry Options ................ - Page 4 List of Tables Table 1. Scale of Hearing Loss ................ 8 Table 2. AC Power Timeout Options .............. 10 Table 3. Battery Timeout Options ..............11 List of Figures Figure 1. Manual Audiometry Display ............7 Figure 2. Information Display ................. 16...
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Page 5: Introduction
PC attached to the Internet. Using factory supplied software, firmware updates/upgrades can be downloaded from the Micro Audiometrics website and installed on the ES3M. Micro Audiometrics will be periodically adding new features to the firmware, and these features can be downloaded from the Micro Audiometrics website or obtained from an authorized Micro Audiometrics distributor. -
Page 6: The Menu System
The Menu System The ES3M default mode is manual audiometry test mode. There are, in addition, a number of user-selectable options that may be accessed via the menu system. For example, the display screen contrast, back light brightness, power-down timeout delays, and key “click” volume may be adjusted through the menu system. Audiometric test defaults, such as starting test level, frequencies to test, and tone presentation mode (pulsed / continuous), may be selected through the menu system. -
Page 7: Es3M Setup
ES3M SETUP Cable Connections The ES3M audiometer can be powered by 4 AA Alkaline batteries (battery com- partment is accessible from the back of the instrument). Optionally, power from an AC adapter can be supplied via the 6-pin multi-purpose “mini DIN” connector on the top of the instrument. -
Page 8: Manual Audiometry
MANUAL AUDIOMETRY When the ES3M is in manual audiometry mode, the screen format shown in Figure 1 will be displayed. This display example indicates that the frequency is 1000 Hz and the test level is 20 dB HTL. Figure 1. Manual Audiometry Display Testing Procedure Instruct the patient to raise his/her hand whenever a tone is heard. -
Page 9: Quantifying Hearing Loss
Quantifying Hearing Loss Table 5 provides a general reference for converting threshold in decibels to degree of hearing loss. Table 1. Scale of Hearing Loss Hearing within normal limits 0 – 20 dB 25 – 40 dB Slight to mild hearing loss 45 –... -
Page 10: Selecting Levels
The test starting frequency may be viewed or modified via the menu sequence ⌐A ⌐S . The display will show the list of available udioMetry etup tArting requency test frequencies and the currently selected starting frequency will be highlighted. Use the {Hz or dB ▲} or {Hz or dB ▼} keys to move the highlight to the desired starting frequency and press {L} or {R} to select the frequency. -
Page 11: Reset Settings
Reset Settings All user selectable instrument settings may be returned to factory default values via the menu sequence ⌐A ⌐r . Calibration data will udioMetry etup eSet ettingS not be affected. Caution! ‘Reset Settings’ will return all user-selectable settings to factory defaults. -
Page 12: Screen Properties
Table 3. Battery Timeout Options 5 seconds ⌐Advanced Settings 10 seconds ⌐Bat. Power Settings (20 seconds) 30 seconds ⌐Backlight 1 minute 15 seconds ⌐Advanced Settings 30 seconds ⌐Bat. Power Settings (1 minute) ⌐Power Down 2 minutes 5 minutes Screen Properties The LCD Screen is preset at the factory with typical contrast and brightness settings, but both are user adjustable to allow optimizing the display for differing viewing conditions (e.g., ambient lighting or viewing angle). -
Page 13: Key Volume
As a further safeguard, calibration mode is password protected to minimize the risk of inadvertent changes (e.g., while ‘browsing’ through menus). Micro Audiometrics recommends that audiometers be calibrated annually. The last calibration date is displayed in the lower left-hand corner of the logo screen each time the instrument is powered up to serve as a calibration “due date”... -
Page 14: Technical Specifications
TECHNICAL SPECIFICATIONS ANSI S3.6 Type: 4 Frequencies (Hz): 250, 500, 1000, 2000, 3000, 4000, 6000, (+/- 1%) 8000 Earphones: TDH-39 Levels (dB HTL): -10 to 80 (+/- 1 dB) Presentation: Pulsed or Continuous Test Mode: Manual Display: 128 x 64 Backlit LCD Headset: TDH-39 Power: 4 AA Alkaline Batteries, A/C adapter Standards Met: ANSI S3.6-1996, ANSI/AAMI ES1:1993... -
Page 15: Functional 'Quick Checks
FUNCTIONAL ‘QUICK CHECKS’ The following checks can be used to verify instrument operation and to help narrow the focus for solving problems. At power-up the ES3 logo should appear and the backlight should be on. After a short pause, the ES3M should proceed to Audiometry test mode and should respond to keypad control. -
Page 16: External Interface
EXTERNAL INTERFACE Connectors The headset attaches to a high-density 15-pin D-Subminiature connector, and is held in place with allen (hex head) screws to minimize the possibility of accidental mismatch of headset to instrument. All other cables are attached via a multi- purpose 6-pin mini DIN connector. -
Page 17: Es3M Information
ES3M INFORMATION Press the logo key to display the ES3M Information screen. Press it again, or press MENU to exit the information display screen. Serial number and firmware revision are important when upgrades, updates, and/ or service are being considered. Figure 2. -
Page 18: Warranty
2. Micro Audiometrics Corporation warrants this Earscan® 3 Pure Tone Audiometer to be free from defects in materials and workmanship for five (5) years and the headset and patient response button for one (1) year under normal use. -
Page 19: Contact Information
CONTACT INFORMATION For additional information or assistance, contact your local distributor or contact Micro Audiometrics directly at: Micro Audiometrics Corporation 1901 Mason Ave, Suite 104 Daytona Beach, FL 32117 USA Phone: (386) 888-7878 Toll-free: (866) 327-7226 Product and company information is available on the internet: www.earscan.com... - Page 20 ® Earscan® is a registered trademark of Micro Audiometrics Corporation. Information in this manual is believed to be accurate; however, Micro Audiometrics Corporation assumes no responsibility for its use. Content is subject to change without notice. No part of this manual may be reproduced without written permission.
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