Micro Audiometrics ES3 - Precautionary Notes

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Precautionary Notes: Earscan® 3 Audiometer

1. Use only the factory-supplied, UL approved, power adapter (wall cube)

with the Earscan® 3. Use of any other power adapter will invalidate the

warranty and may result in damage to the audiometer.

2. The Earscan® 3 is designed for use with alkaline 1.5 volt AA size batteries.

If re-chargeable batteries are used, they must be of the alkaline type. Do not

use nickel-metal hydride (NiMH) or nickel cadmium (NiCad) rechargeable

batteries.

3. When installing batteries in the Earscan® 3, you must observe the correct

polarity. If one or more cells are installed with reversed polarity, the

instrument will not operate in the battery-powered mode, and the audiometer

may be damaged.

4. The Earscan® 3 is capable of producing signal levels greater than 100 dB

SPL. Prolonged exposure to signals at these levels can result in temporary

threshold shift or permanent hearing loss. When testing in manual mode at

high HTL settings, limit signal duration to no more than 1 second.

5. If the Earscan® 3 has only external power available (low batteries or no

batteries installed), be aware that unplugging the mini DIN connector will

result in power loss and potential data loss. If it is necessary to disconnect

the mini DIN in this case (e.g., to switch from USB cable to printer cable), it is

advisable to turn the instrument off, make the cable change, then turn the

instrument back on.

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.

Earscan

is a registered trademark of Micro Audiometrics Corporation.

E·A·R

and E·A·RTONE

are registered trademarks of Aearo Company.

Microsoft

and Windows

are registered trademarks of Microsoft 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.