Esaote O-scan eXP, User Manual

Page: 48 / 242

•
•
•
•
•
•
16 / 48 Chapter 3
Personnel and patient exposure to the acoustic noise
Excessive Noise
☛
The weighted sound pressure level (LAeq, 1 h) generated by the O-scan
system, measured according to paragraph 26 of standard EN 60601-2-33,
is below 99 dB(A).
☛
The non-weighted sound pressure level (Lp) generated by the O-scan
system, measured according to paragraph 26g of standard
EN 60601-2-33, is below 140 dB.
☛
The weighted sound pressure level (LAeq, 8 h) generated by the O-scan
system at the Operator console - daily exposure of operator to noise - is
below 80 dB(A).
☛
The weighted sound pressure level (LAeq, 8 h) generated by the O-scan
system within the controlled access area is below 80 dB(A).
The User is advised that some federal, state and local laws regarding
exposure of employees to noise may apply.
The user is advised - when the weighted sound pressure level (LAeq, 8 h)
in the controlled access area exceeds the limits as specified by federal,
state and local laws governing the exposure of employees to noise - to
instruct MR worker to wear the appropriate ear protection devices when
located in the controlled access area during examinations.
Special precautions against acoustic noise
W a r n i n g
During the examination of sedated patients (for which special
precautions has been taken, as indicated in the previous paragraph
“Pre-screening of patients”) - even if the generated noise level always
remains within the limits set by International Standards - ear plugs or
ear protectors have to be used in order to prevent possible temporary
or permanent hearing impairment.