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Summary of Contents for Micro Audiometrics ES3
- Page 1 Pure Tone Audiometer User’s Guide Rev 1.11...
- Page 2 6. The Earscan® 3 does not implement handshaking protocol on the serial port. This means that the ES3 will not detect an unconnected serial port or a ‘printer not ready’ condition. 7. Data stored on Earscan® 3 SD flash memory cards should be backed up to a PC on a regular basis to avoid potential data loss.
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Page 3: Table Of Contents
Table of Contents Introduction ......................6 Manual Conventions ..................6 Keypad ......................7 Menu Navigation..................... 7 Function Keys ....................8 Setup ........................9 Cable Connections ..................9 Power Up......................9 Power Options ....................10 Beep Volumes ....................10 Talk Over ...................... 11 Time and Date .................... - Page 4 Data Storage ......................22 Saving Tests ....................23 Loading Tests ....................23 Marking Baseline Test .................. 24 Serial Communications ..................24 Transmit Options ..................24 Baseline Comparisons..................25 Screen and Clock Options................25 Screen Properties ..................25 Power-Up Logo ..................26 Real-Time Clock Settings ................26 Lock Settings.....................27 Reset Settings ....................27 Firmware Upgrade.....................27...
- Page 5 UNCTIONS 9. S ............... 22 ABLE CALE OF EARING 10. D ..............24 ABLE RANSMIT PTIONS List of Figures 1. ES3 K ..................7 IGURE EYPAD 2. M LCD T ..........8 IGURE APPING UNCTION EYS TO 3. M ............. 12...
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Page 6: Introduction
The Earscan 3 model ES3 is a pure tone, full frequency, air conduction audiometers. It provides manual/automatic threshold test capability with talk over. The ES3 is optimized for use in hearing conservation programs. It can be PC- controlled and optional provides data storage capability (via removable SD flash memory card), baseline comparisons and STS/PBI calculations. -
Page 7: Keypad
Keypad ES3 audiometers have a blue keypad/overlay with 10 keys, labeled 1 through 0 (see Figure 1). Figure 1. ES3 Keypad l a b e l e d k e y s t h r o u g h Menu Navigation The ES3 menu system is designed for intuitive use. -
Page 8: Function Keys
Function Keys At times, ‘actions’ or ‘toggles’ will be displayed on the bottom line of the LCD. The keys just below the display are then used as ‘function’ keys to perform an action (A), or to toggle between two possible parameter values (a/b). Figure 2 illustrates how keys are mapped to actions or toggles shown on the LCD. -
Page 9: Setup
ES3 at its last power down. If you choose to begin a new test, the ES3 will prompt you to enter the Patient ID and an Operator ID. If the Test Analysis option is installed, it will also check to see if baseline data is available. -
Page 10: Power Options
(see Table 1; ( ) indicates default setting). Note: The backlight requires considerable battery power. Setting the backlight power-down interval longer than necessary will decrease battery life when the ES3 is battery powered (see Screen Properties). -
Page 11: Talk Over
Press {1}, {Menu}, or {Ο} to exit talk over. Time and Date The ES3 has a battery-backed up real time clock to maintain time and date. The clock is set at the factory prior to shipment. See section Real-Time Clock Settings for details on how to check or set the time and date. -
Page 12: Manual Audiometry
To insure that pending data is cleared, always begin a new test via the main menu sequence ⌐N to clear pending test data. When the ES3 enters manual audiometry mode, the screen format shown in Figure 3 will be displayed (assumes factory defaults for starting frequency and level). -
Page 13: Manual Audiometry Key Functions
20 dB has been obtained for the right ear at 1000 Hz. Manual Audiometry Key Functions Table 2 lists the functions of ES3 keys that are active in the manual audiometry mode. The last column indicates the action of the function keys. -
Page 14: Testing Procedure
Testing Procedure 1) Instruct the patient to raise his/her hand or press the patient response button (if available) whenever a tone is heard. 2) Position the headphones over the patient’s ears (Red over Right ear, Blue over Left ear). 3) Press {2} if necessary to toggle to the desired test ear. 4) Select the test frequency using the {◄} / {►} keys. -
Page 15: Other Options
Other Options Additional manual audiometry options listed in Table 3 may be accessed via the menu sequence ⌐S ⌐A ⌐M . To change an ETUP UDIOMETRY ETUP ANUAL UDIOMETRY option, highlight the option to modify using the {►}, {▲}, {▼} and {◄} keys, and press {Ο}. -
Page 16: Automatic Threshold Audiometry
Pressing {1} (Man) during an automatic threshold exam will stop the test and return the ES3 to the manual audiometry mode. Note that exiting the test does not clear test data. The test may be re-entered and continued from the point at which it was... -
Page 17: Test Procedure
If the stimulus is presented at the maximum level for a given frequency and a negative response is received by the ES3, the threshold for the frequency is set to a No Response (NR) and the test continues with the next frequency selected for testing. -
Page 18: Automatic Threshold Test Error Conditions
If the opposite ear has not been tested, ES3 will select the opposite ear, and begin testing in the manner described beginning with step 1. If both ears have been tested, the test is complete and ES3 will return to the manual audiometry mode. -
Page 19: Other Options
Other Options Basic automatic threshold test options (see Table 5) are selectable via the menu sequence ⌐S ⌐A ⌐A ETUP UDIOMETRY ETUP HRESHOLD Table 5. Basic Automatic Threshold Test Options Starting ear for automatic Left, (Right), Better Ear threshold exam Frequency 1k/V, 500, 1000, 2000, Frequency presentation order... -
Page 20: Subject Demographics
SUBJECT DEMOGRAPHICS Subject demographic information can be stored along with threshold information on the ES3 with the Test Storage upgrade. Demographic information can be entered at any time via the menu sequence ⌐D , and automatic prompts for EMOGRAPHIC demographic information will appear when starting a new test. -
Page 21: Test Results
Press {2} (L/R) to toggle between display of Left or Right ear data, respectively. When baseline data is available (ES3 with Test Analysis option), it is displayed in a column under the ‘Base’ heading. In this example, STS and PBI calculations are available, so {4} would display STS calculations and {5} would display PBI calculations. -
Page 22: Display Results Key Functions
90 dB+ Profound hearing loss DATA STORAGE The ES3 with the Test Storage option can store audiometric test results on a standard, removable, SD flash memory card. Utilizing widely adopted flash storage cards facilitates transfer of test results between a PC database... -
Page 23: Saving Tests
A 128 MB memory card, for example, can hold more than 50,000 audiometric exam records. The ES3 stores files in a directory named ‘Earscan3’. This directory contains ‘patient’ directories whose names correspond to the patient ID number. Each patient directory contains audiometric test results. -
Page 24: Marking Baseline Test
SERIAL COMMUNICATIONS The ES3 can transmit data to a computer or to a printer. The default output device is selected using the menu sequence ⌐S ⌐C... -
Page 25: Baseline Comparisons
Date can be set/displayed in dd/mm/yyyy or mm/dd/yyyy format. The battery is recharged when the ES3 is powered on. When fully charged it should maintain the real-time clock for at least a year, even if the instrument is not used. In the unlikely... -
Page 26: Power-Up Logo
Power-Up Logo At power up, the ES3 logo can either scroll slowly onto the screen or just appear as a full-screen display. This option is set via the menu sequence ⌐S ⌐D... -
Page 27: Lock Settings
Firmware load is done via the ES3 USB interface. In order to install new firmware, the ES3 must be placed in update mode by holding down the {Menu} key as the instrument is powered on by pressing the {On} key. Once the firmware update is completed, the ES3 will return to normal operational mode. -
Page 28: Headset Management
TDH-39/EAR-5A headset type to be used for testing, the selection MUST MATCH the headset that is actually attached to the ES3. Special hex screws are used to attach the headset cable to the ES3. Use of these screws serves as a reminder that headset assemblies should not be casually exchanged. -
Page 29: Calibration
CALIBRATION Micro Audiometrics recommends that audiometers be calibrated annually. About one month before the annual calibration due date, the ES3 will begin displaying a reminder at power up that the due date is approaching. This reminder will be cleared once the instrument is calibrated. If the calibration due date passes and the instrument has not been calibrated, a caution will be displayed regarding potential test data invalidation. -
Page 30: Technical Specifications
TECHNICAL SPECIFICATIONS ANSI S3.6 Type: Frequencies (Hz): 125, 250, 500, 750, 1000, 1500 (+/- 1%) 2000, 3000, 4000, 6000, 8000 Levels TDH-39 125 Hz -10 to 65 (60 Ω) 250 Hz -10 to 90 Phones 500 thru 6000 Hz -10 to 100 (+/- 1 dB) 8000 Hz -10 to 90... -
Page 31: 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 after a manual power-down, the ES3 logo should either scroll onto the LCD or appear quickly, depending on the scroll setting, and the backlight should be on. -
Page 32: Trouble Shooting Guide
TROUBLE SHOOTING GUIDE Problem Possible Solution ES3 does not power up. Check batteries or verify that wall cube is attached and plugged in. Signal is missing or intermittent. 1. Verify that headset/response button cable connector is securely attached and mounting screws are snug. -
Page 33: External Interface
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. The ES3 wall cube, printer/power cable, USB cable, or serial computer/power cable may be attached to the mini DIN connector. -
Page 34: Headset Connector
Not Used DPU-414 Printer Switch Settings The setup switches on the Seiko Instruments DPU-414 printer should be set as follows to ensure compatibility with Micro Audiometrics ES3 audiometers. SW1 - 1 - OFF SW2 - 1 - ON SW3 - 1 - ON 2 –... -
Page 35: Earscan 3 Information
EARSCAN 3 INFORMATION General Earscan 3 information is displayed via the menu sequence ⌐S ETUP ⌐G ⌐E . (e.g., see Figure 7). Serial number and firmware ENERAL ARSCAN revision are important when upgrades, updates, and/or service are being considered. Figure 7. Information Display E a r s c a n A u d i o m e t e r A N S I... -
Page 36: Warranty
(3) years and headset for one (1) year under normal use. This warranty applies only to the original customer, and only on units purchased and used solely in the United States. Micro Audiometrics Corporation may, at its sole and exclusive option, replace this product. -
Page 37: Contact Information
CONTACT INFORMATION For additional information or assistance, contact your local distributor or contact Micro Audiometrics directly at: Micro Audiometrics Corporation 655 Keller Rd., Murphy, NC 28906 USA Toll-free: (866) EARSCAN 3 2 7 7 2 2 6 Voice: (828) 644-0771...
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