Instruction/ maintenance manual of the product E-A-RTONE 3A AOSafety
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Instructions for the use of E - A - RTONE ® 3A Insert Earphones Revised 1997 per ANSI S3.6 - 1996 and ISO 389 - 2:1994 12/99.
1 INTRODUCTION Congratulations on the purchase of your new E - A - RTONE ® 3A Insert Earphones. Whether you are performing hearing screening in an educational or industrial setting, testing related t.
2 1. Preliminary Procedures for Use of the E - A - RTONE ® 3A Initially examine the ear canal for obstruction(s) and evaluate the proper size E - A - RLINK ® disposable foam eartip needed to fit the particular ear canal.
3 -10 0 10 20 30 40 50 60 70 80 90 100 110 125 250 500 1000 2000 4000 8000 Hz dB Full E-A-RLINK insertion in both ears Shallow insertion in dead ear only Shallow insertion in both ears Obtained Interaural Attenuation 2.
4 3. Positioning of the E - A - RTONE ® When positioning the E - A - RTONE ® unit on the subject, avoid sound tube contact with the subject’s clothing. Alw ays use E - A - RLINK ® tips in both ears, or block the opposite ear with an E - A - R ® foam earplug.
5 ANSI S3.6 - 1996 and ISO 389 - 2:1994 Calibration Values Frequency in Hz Coupler 2cc DB - 0138 Coupler IEC 711 Coupler 2cc HA - 1 125 96.0 98.0 96.5 250 84.0 87.5 84.5 500 75.5 79.5 76.0 750 72.0 76.0 72.0 1000 70.0 75.5 70.0 1500 72.0 79.5 70.0 2000 73.
6 10. Technical Specifications and Limits for E - A - RTONE ® 3A Impedance: 10 Ohm, 50 Ohm or 300 Ohm 1 kHz Sensitivity: 102.5 dB SPL in DB - 0138 (HA - 2) coupler @ 0.1 Volt rms. (10 V ) @ 0.2 Volt rms. (50 V ) 103.5 dB SPL in DB - 0138 (HA - 2) coupler @ 0.
7 12. Limited Warranty Aearo Company warrants each insert earphone (sold under the name E - A - RTONE ® 3A) it manufactures to be free from defects in material and workmanship under normal use for a period of twelve (12) months from the date of sale to the original purchaser.
8 Aearo Company Auditory Systems Production 8001 Woodland Drive Indianapolis, IN 46278 Customer Service (from the US only): 800/624 - 5955 Fax: 877/807 - 7113 International Customer Service Ph: 317/65.
An important point after buying a device AOSafety E-A-RTONE 3A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought AOSafety E-A-RTONE 3A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data AOSafety E-A-RTONE 3A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, AOSafety E-A-RTONE 3A you will learn all the available features of the product, as well as information on its operation. The information that you get AOSafety E-A-RTONE 3A will certainly help you make a decision on the purchase.
If you already are a holder of AOSafety E-A-RTONE 3A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime AOSafety E-A-RTONE 3A.
However, one of the most important roles played by the user manual is to help in solving problems with AOSafety E-A-RTONE 3A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device AOSafety E-A-RTONE 3A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
