natus MADSEN Alpha OAE+, Руководство пользователя

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MADSEN Alpha OAE+ Screener User Manual
57
Guidance and manufacturer's declaration - electromagnetic immunity for all equipment and systems
MADSEN Alpha OAE+ is intended for use in the electromagnetic environment specified below. The user of MADSEN Alpha OAE+ should ensure 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
+/- 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
+/- 2 kV for power supply 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(s) to line(s)
+/- 2 kV line(s) to earth
+/- 1 kV line(s) to line(s)
+/- 2 kV line(s) to earth
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 % UT (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
<5 % U
T
(>95 % dip in U
T
) for 0.5
cycle
40 % UT (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
Mains power quality should be that of a typical
commercial or hospital environment. If the user of the
MADSEN Alpha OAE+ requires continued operation
during power mains interruptions, it is recommended
that the MADSEN Alpha OAE+ 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
characteristic of a typical location in a typical
commercial or hospital environment.
Note: U
T
is the AC mains voltage prior to application of the test level.