User Manual

Table Of Contents
110ImportantInformationExpressionMR400InstructionsforUse
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
Test
IEC 60601 Test Level Compliance Level
Electromagnetic
Environment - Guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
± 6kV contact
± 8kV air
± 6kV contact
± 8kV air
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the
relative humidity should be at
least 30%.
Electrical fast
transient/burst
IEC 61000-4-4
± 2kV for power supply lines
± 1kV for input/output lines
± 2kV for power supply lines
± 1kV for input/output lines
Mains power quality should
be that of a typical
commercial or hospital
environment.
Surge
IEC 61000-4-5
± 1kV differential mode
± 2kV common mode
± 1kV differential mode
± 2kV common mode
Mains power quality should
be that of a typical
commercial or hospital
environment.
Voltage dips,
short
interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
< 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
< 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
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 (50/
60 Hz)
magnetic field
IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
Note
Ut is the AC mains voltage prior to application of the test level.