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Specifications
Chapter 1: Introduction
Page 1 - 22
Electrically Operated General Ward Bed
Operation and Maintenance Manual
(154588 REV 1)
Electromagnetic Immunity Guidance
Guidance and Manufacturer's Declaration - Electromagnetic Immunity
The bed is intended for use in the electromagnetic environment specified below. The customer or the user of the bed
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
±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 tran-
sient / burst
IEC 61000-4-4
±2 kV for power supply
lines
±2 kV for power supply
lines
Mains power quality should be that
of a typical commercial or hospital
environment.
Surge
IEC 61000-4-5
±1 kV differential mode
±2 kV common mode
±1 kV differential mode
±2 kV 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
50% 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
sec
< 5% UT
(>95% dip in UT) for 0.5
cycle
50% 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
sec
Mains power quality should be that
of a typical commercial or hospital
environment. If the user of the bed
requires continued operation during
power mains interruptions, it is rec-
ommended that the bed be powered
from an uninterruptible power sup-
ply 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 com-
mercial or hospital environment.
NOTE 1: U
T
is the AC mains voltage prior to application of the test level.
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