Samsung MYSONO U6 Manual de usuario Pagina 32

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Operation Manual
Electromagnetic Environment – Guidance
Ultrasound systems must be used only in shielded locations oering at least the minimal level of RF
shielding eectiveness, and where all the cables found are also shielded. Field strengths outside the
shielded location from xed RF transmitters, as determined by an electromagnetic site survey, should
be less than 3V/m.
It is essential to verify that the actual shielding eectiveness and lter attenuation of the shielded
location meet the minimum specications.
CAUTION: If you connect the product to a LAN or any other remote device you possess, Samsung
Medison will not be held responsible for any problem arising in the presence of an electromagnetic
field.
Avoiding Electromagnetic Interference
Typical interference on Ultrasound Imaging Systems varies depending on Electromagnetic
phenomena. Please refer to the following table:
Imaging Mode ESD
1
RF
2
Power Line
3
2D or 3D Change of operating
mode, system settings,
or system reset.
Brief ashes in the
displayed or recorded
image.
For sector imaging probes,
white radial bands or ashes in
the centerlines of the image.
For linear imaging probes,
white vertical bands,
sometimes more pronounced
on the sides of the image.
White dots, dashes, diagonal
lines, or diagonal lines near
the center of the image.
M Increase in the image
background noise or white M
mode lines.
White dots, dashes, diagonal
lines, or increase in image
background noise
Color Color ashes, radial or vertical
bands, increase in background
noise, or changes in color
image.
Color ashes, dots, dashes,
or changes in the color noise
level.
Doppler Horizontal lines in the spectral
display or tones, abnormal
noise in the audio, or both.
Vertical lines in the spectral
display, popping type noise in
the audio, or both.
1. ESD caused by discharging of electric charge build-up on insulated surfaces or persons.
2. RF energy from RF transmitting equipment such as portable phones, hand-held radios, wireless devices,
commercial radio and TV, and so on.
3. Conducted interference on powerlines or connected cables caused by other equipment, such as switching
power supplies, electrical controls, and natural phenomena such as lightning.
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