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Philips Expression MR400 Instructions For Use Manual Page 32

Mri patient monitoring system.
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Guidance and Manufacturer's Declaration - Electromagnetic Immunity
The Expression MR400 MRI Patient Monitoring System is intended for use in the electromagnetic environment
specified below. The customer or the user of the Expression MR400 MRI Patient Monitoring System should assure
that it is used in such an environment.
Immunity
IEC 60601 Test Level
Test
Electrostatic
± 6kV contact
discharge (ESD)
IEC 61000-4-2
± 8kV air
Electrical fast
± 2kV for power supply lines
transient/burst
IEC 61000-4-4
± 1kV for input/output lines
Surge
± 1kV differential mode
IEC 61000-4-5
± 2kV common mode
< 5% Ut
Voltage dips,
(> 95% dip in Ut) for 0.5 cycle
short
interruptions
40% Ut
and voltage
(60% dip in Ut) for 5 cycles
variations on
power supply
input lines
70% Ut
(30% dip in Ut) for 25 cycles
IEC 61000-4-11
< 5% Ut
(> 95% dip in Ut) for 5
seconds
Power
3 A/m
frequency (50/
60 Hz)
magnetic field
IEC 61000-4-8
Note
Ut is the AC mains voltage prior to application of the test level.
1‐10  Important Information                                                                                                                Expression MR400 Instructions for Use
Compliance Level
± 6kV contact
± 8kV air
± 2kV for power supply lines
± 1kV for input/output lines
± 1kV differential mode
± 2kV common mode
< 5% Ut
(> 95% dip in Ut) for 0.5 cycle
40% Ut
(60% dip in Ut) for 5 cycles
70% Ut
(30% dip in Ut) for 25 cycles
< 5% Ut
(> 95% dip in Ut) for 5 seconds
3 A/m
Electromagnetic
Environment - Guidance
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the
relative humidity should be at
least 30%.
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical
commercial or hospital
environment. If the user of
the Expression MR400 MRI
Patient Monitoring System
requires continued operation
during AC power
interruptions, power from an
uninterruptible power supply
or battery is recommended.
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.

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