Arjohuntleigh citadel Instructions For Use Manual page 38

Guidance and manufacturer's declaration – electromagnetic immunity
Surge
IEC 61000-4-5
Voltage
dips, short
interruptions
and voltage
variations on
power supply
input lines IEC
61000-4-11
Power
frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
U T is the a.c. mains voltage prior to the application of the test
level
38
± 1kV line to line
± 2kV line to earth
70% U
T
(30% dip in U T )
for 25 cycles
40% U T
(60% dip in U T )
for 5 cycles
<5% U T
(>95% dip in U T )
for 0.5 cycle
<5% U T
(>95% dip in U T )
for 5 sec.
3A/m
± 1kV
± 2kV
70% of input voltage
for 500ms
40% of input
voltage for 100ms
<5% of input voltage
for 10ms
<5% of input voltage
for 5000ms
3A/m
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 Citadel
Mattress Control Unit requires
continued operation during
power mains interruptions,
it is recommended that the
Citadel Mattress Control Unit be
powered from an uninterruptible
power supply or battery.
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical commercial
or hospital environment.
Citadel Patient Therapy System