Samsung MySono U5 Bedienungsanleitung PDF herunterladen (Seite 32)

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Operation Manual

Electromagnetic Environment – Guidance

The ultrasound product must be used in an isolated area with a minimum shield from radio frequencies

where all cables are shielded. The eld intensity of the xed radio frequency emitter must be, as

specied by the electromagnetic test requirements, 3V/m lower than outside the isolated area.

The mandatory test is carried out in order to conrm that shielding and attenuation of the lter for the

isolated area meet the minimum requirements.

CAUTION:

If the system is connected to other customer-supplied equipment, such as a local area

network (LAN), Samsung Medison cannot guarantee that the remote equipment will work correctly

in the presence of electromagnetic phenomena.

Avoiding Electromagnetic Interference

Typical interference on Ultrasound Imaging Systems varies depending on Electromagnetic

phenomena. Please refer to following table:

Imaging Mode ESD

Power Line

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.

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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