Aearo-company E-A-RTONE 3A User Manual

Instructions for the use of E-A-RTONE ® 3A Insert Earphones Revised 1997 per ANSI S3.6-1996 and ISO 389-2:199

1 INTRODUCTION Congratulations on the purchase of your new E-A-RTONE® 3A Insert Earphones. Whether you are performing hearing screening in an educ

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-RL

3-100102030405060708090100110125 250 500 1000 2000 4000 8000HzdBFull E-A-RLINK insertion in both earsShallow insertion in dead ear onlyShallow inser

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. Alwa

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 9

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-01

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

8 Aearo Company Auditory Systems Production 8001 Woodland Drive Indianapolis, IN 46278 Customer Service (from the US only): 800/624-5955 Fa