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758.876-0617
Table 3
Guidance and manufacturer’s declaration – electromagnetic immunity
The EM 44 is intended for use in the electromagnetic environment specified below. The customer or the user of the EM 44 should assure that it is used in such an env-
ironment.
IMMUNITY test
IEC 60601 test level
Compliance level
Electromagnetic environment – guidance
Electrostatic discharge (ESD)
IEC 61000-4-2
± 6 kV contact
± 8 kV air
± 6 kV contact
± 8 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 %.
Electrical fast transient/burst
IEC 61000-4-4
± 2 kV for power supply lines
± 1 kV for input/output lines ± 1 kV for input/output lines
Mains power quality should be that of a typical commercial or
hospital environment.
Surge
IEC 61000-4-5
± 1 kV line to line
± 2 kV line to earth
Not applicable
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 % U
T
(>95 % dip in U
T
)
for 0.5 cycle
40 % U
T
(60 % dip in U
T
)
for 5 cycles
70 % U
T
(30 % dip in U
T
)
for 25 cycles
<5 % U
T
(>95 % dip in U
T
)
for 5 s
Not applicable
Mains power quality should be that of a typical commercial or
hospital environment. If the user of the EM 44 requires continued
operation during power mains interruptions, it is recommended
that the EM 44 be powered from an uninterruptible power supply
or a battery.
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 characte-
ristic of a typical location in a typical commercial or hospital env-
ironment.
NOTE:
U
T
is the a.c. mains voltage prior to application of the test level.
