Operation Manual

41
40
Special medical or dental
examination including
radiation described below,
may adversely aect the
correct functioning of your
hearing aids. Remove and
keep them outside the
examination room/area
before undergoing:
Medical or dental
examination with X-ray
(also CT scan).
Medical examinations with
MRI/NMRI scans, generating
magnetic elds.
Hearing aids don’t need to
be removed when passing
security gates (airports
etc.). If X-ray is used at all,
it will be in very low doses,
and will not aect the
hearing aids.
Do not use your hearing
aid in areas where
electronic equipment
is prohibited.
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Some hearing aid users have reported a buzzing sound in
their hearing aids when they are using cell phones.
According to the ANSI 63.19 (American National Standard
Methods of Measurement of Compatibility between
Wireless Communications Devices and Hearing
Instruments) standard, the compatibility of a particular
hearing aid and cell phone can be predicted by adding the
rating for the hearing aid immunity to the rating for the
cell phone emissions. The sum of the hearing aid rating
(e.g. M2/T2=2) and the telephone rating (e.g.
M3/T3=3) is 5, and any combination that equals 5 will
provide “normal use”; a sum of 6 or greater would indicate
“excellent performance”. The equipment performance
measurements, categories and system classifications are
based upon the best information available but cannot
guarantee that all users will be satisfied. The immunity of
this hearing aid is at least M2/T2.
19. Important information: Cell phones