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Voltage dips, short
interruptions and
voltage variations on
power supply lines
IEC / EN 61000-4-
11
Power frequency
(50/60 Hz)
magnetic field
IEC / EN 61000-4-8
U
NOTE
is the a.c. power voltage prior to application of the test level
T
Guidance and manufacturer's declaration — electromagnetic immunity
The CSM is intended for use in the electromagnetic environment specified below. The customer or the user
of the CSM should assure that it is used in such an environment,
Immunity test
IEC / EN
60601
test level
Cerebral State Monitor - CSM DFU
±2 kV common
mode
U
<5%
Not Applicable
T
(>95 % dip in
U
)
T
for 0.5 cycles
40%
U
T
U
(60 % dip in
)
T
for 5 cycles
U
70%
T
U
(30 % dip in
)
T
for 25 cycles
U
<5%
T
U
(>95 % dip in
)
T
for 5 sec.
3 A/m
Not Applicable
Compliance
level
typical commercial or
hospital environment.
Power quality should
be that of a typical
commercial or hospital
environment. If the
user of the CSM
requires continued
operation during
power mains
interruptions, it is
recommended that the
CSM be powered from
an uninterruptible
power supply or a
battery.
Power frequency
magnetic fields should
be at levels
characteristic of a
typical location in a
typical commercial or
hospital environment.
Electromagnetic environment –
guidance
Portable and mobile RF
communications equipment should
be used no closer to any parts of
the Cerebral State Monitor CSM,
including cables, than the
recommended separation distance
calculated from the equation
applicable to the frequency of the
transmitter.
Page 31
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