18
Joerns® Bed Frames
WeCare™ Bed
© 2022 Joerns Healthcare • 6110435 RevC • 22-2083
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity:
The Joerns WECC bed is intended for use in the electromagnetic environment (for professional healthcare) specified
below. The customer or the user of the Joerns WECC bed should assure that it is used in such an environment.
Immunity Test
IEC 60601 Test Level Compliance Level
Electromagnetic Environment-Guidance (for
professional healthcare environment)
Electrostatic
discharge (ESD)
IEC 61000-4-2
Contact: ±8 kV
Air: ±2 kV, ±4 kV,
±8 kV, ±15 kV
Contact: ±8 kV
Air: ±2 kV, ±4 kV,
±8 kV, ±15 kV
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
Not applicable
Mains power quality should be that of a typical
professional healthcare environment.
Surge
IEC 61000-4-5
±0.5 kV, ±1 kV line(s)
to line(s)
±0.5 kV, ±1 kV, ±2 kV
line(s) to earth
±0.5 kV, ±1 kV line(s)
to line(s)
±0.5 kV, ±1 kV, ±2 kV
line(s) to earth
Mains power quality should be that of a typical
professional healthcare environment.
Voltage
dips, short
interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Voltage Dips:
0%
U
τ; 0,5 cycle
0%
U
τ; 1 cycle
70%
U
τ; 25/30 cycles
Voltage Interruptions:
0%
U
τ; 250/300
cycle
Voltage Dips:
0%
U
τ; 0,5 cycle
0%
U
τ; 1 cycle
70%
U
τ; 25 cycles
Voltage Interruptions:
0%
U
τ; 250 cycle
Mains power quality should be that of a typical
professional healthcare environment. If the user
of the Joerns WECC bed requires continued
operation during power mains interruptions, it
is recommended that the Joerns WECC bed be
powered from an uninterruptible power supply or
a battery.
Power frequency
(50/60 Hz)
Magnetic Field
IEC 61000-4-8
30 A/m
50 Hz or 60 Hz
30 A/m
50 Hz / 60 Hz
The Joerns WECC bed power frequency magnetic
fields should be at levels characteristic of a typical
location in a typical professional healthcare
environment.
Note:
U
τ is the a.c. mains voltage prior to application of the test level.
