Audioscan Axiom - Manual (Page 10)

Axiom ® User's Guide Version 1.8  May 2015
Electronic User’s Guide
You can download the current User's Guide directly from www.audioscan.com. A printable User’s Guide is on
the updater USB flash drive supplied with a new instrument. This User's Guide will be updated each time you
download new software from www.audioscan.com to the updater USB flash drive. Except for some additional
reference material, this same information is available to you at any time by clicking
on the Axiom.
A .pdf file viewer, such as Acrobat Reader (5.0 or higher) or Foxit Reader is required to view the User’s Guide.
To view the User's Guide:
1. Insert the updater USB flash drive into a USB port on your PC.
2. If your PC does not open the flash drive automatically, select My Computer, then the Removable Disk drive
(usually E or F).
3. Double click the User_Guide folder to open it.
4. Double click the english folder and copy the Axiom Users Guide.pdf file to an appropriate location on your
PC. Double click on the file to open it for viewing.
When you have finished copying the file from the USB flash drive, click on the safely remove icon on your PC
and remove the flash drive when you are notified that it is safe to do so.
STORE THE UPDATER USB FLASH DRIVE IN A SAFE PLACE. YOU WILL REQUIRE IT TO INSTALL
FUTURE SOFTWARE UPDATES.
How to Avoid Undesirable Side Effects
During the development of the hearing aid analyzer, Audioscan performed a rigorous Risk Assessment to
identify any undesirable side effects that a user could be exposed to during the use of the Axiom, and
incorporated numerous risk reduction design elements into the Axiom to minimize the risk to users and patients.
Following are the actions which a user should take to ensure that these risk control measures continue to be
effective
Loud Sounds:
The Axiom is designed to produce sound pressure levels as high as 85 dB at the probe reference microphone.
Exposure to these levels for more than 7 hours can produce hearing damage. When such levels are amplified by
a hearing aid, the level in the ear canal will be determined by the settings of the hearing aid but may reach levels
that can produce hearing damage in less than 30 seconds. To avoid this possibility,
1. hearing aids should be adjusted to limit sound pressure levels to safe levels
2. the maximum TM SPL setting (see Max TM SPL Setup) should be used to terminate tests if an unsafe level
is detected in the ear canal
3. test levels should be limited to 70 dB SPL except when necessary to verify the limiting levels of the hearing
aid, in which case, the test should not last longer than 15 seconds
4. be aware of the test signal and patient reaction during a test and be prepared to respond to any sign of
discomfort by reducing the SPL setting, switching off the equipment or the hearing aid, or removing the
patient from the area.
When using the equipment to measure the Real-Ear to Coupler Difference in small ear canals, it is possible to
induce a hearing loss if the test is allowed to continue for more than 1 hour. Since accurate results can be
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