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EMC INFORMATION
EMISSIONS TEST & STANDARD
COMPLIANCE
ELECTROMAGNETIC ENVIRONMENT - GUIDANCE
Radiated RF Emissions
CISPR 11
Group 1
The MRIaudio Sound System uses RF energy only for its internal
function . Therefore, its RF emissions are very low and are not likely to
cause any interference in nearby electronic equipment .
Conducted RF EMISSIONS
CISPR 11
Class A
The MRIaudio Sound System is suitable for use in all establishments
other than domestic and those directly connected to the public
low-voltage power supply network that supplies buildings used for
domestic purposes .
Harmonic distortion
IEC 61000-3-2
Class A
Voltage fluctuations and flicker
IEC 61000-3-3
Complies
IMMUNITY TEST
AND STANDARD
IEC 60601 TEST
LEVEL
COMPLIANCE LEVEL
ELECTROMAGNETIC ENVIRONMENT - GUIDANCE
Electrostatic Discharge
IEC 61000-4-2
± 8 kV contact
± 2 kV, ±4 kV, ±8 kV,
±15 kV air
± 8 kV contact
±15 kV air
Floors should be wood, concrete or ceramic tile .
If floors are covered with synthetic material, the
relative humidity should be at least 30% .
Voltage dips
IEC 61000-4-11
0 % UT; 0,5 cycle, @
0°, 45°, 90°, 135°, 180°,
225°, 270° and 315°
0% UT; 1 cycle and
70% UT; 25/30 cycles,
@ 0°
0 % UT; 0,5 cycle, @
0°, 45°, 90°, 135°, 180°,
225°, 270° and 315°
0% UT; 1 cycle and
70% UT; 25/30 cycles,
@ 0°
Main power quality should be that of a typical
commercial or hospital environment . If the operator
requires continued operation during power
interruptions, it is recommended that the system be
powered from an uninterrupted power supply or a
battery .
Voltage interruptions
IEC 61000-4-11
0 % UT; 250/300 cycle
0 % UT; 250/300 cycle
Rated power freq .
magnetic fields
IEC 61000-4-8
30 A/m
50 Hz or 60 Hz
30 A/m
50 Hz or 60 Hz
Power frequency magnetic fields should be at levels
characteristic of a typical location in a typical
commercial or hospital environment .
Electrical fast
transients/burst
IEC 61000-4-4
± 2 kV for power
supply lines
± 1 kV for input/
output lines
100 kHz repetition
frequency
± 2 kV for power
supply lines
± 1 kV for input/
output lines
100 kHz repetition
frequency
Main power quality should be that of a typical
commercial or hospital environment
Surges (Line-to-line)
IEC 61000-4-5
± 0 .5 kV, ±1 kV
± 1 kV
Main power quality should be that of a typical
commercial or hospital environment .
Surges (Line-to-
ground)
IEC 61000-4-5
± 0 .5 kV, ±1 kV, ±2 kV
± 2 kV
The MRIaudio Sound System is intended for use in the electromagnetic environment specified below. The customer or the
user of the MRIaudio Sound System should assure that it is used in such an environment .
Guidance and Manufacturer’s Declaration – Electromagnetic Immunity
U S E R G U I D E
IM-1505 Rev. D
