Electromagnetic Noise Immunity - KERN MPC M Serie Mode D'emploi

8.3 Electromagnetic noise immunity

Guidelines and manufacturer's declaration - electromagnetic noise immunity
The floor scales MPC/MPE is designed for use in an electromagnetic environment that meets the
requirements stated below. The customer or user of the medical electrical device must ensure that
operation takes place in such an environment.
Noise immunity tests
Discharge static
electricity (DSE)
as per IEC 61000-4-2
Fast transient electrical
disturbances / bursts
as per IEC 61000-4-4
Impulse voltages /
surges
as per IEC 61000-4-5
Voltage dips, short-term
disruptions and
fluctuations in supply
voltage
as per IEC 61000-4-11
Magnetic field for supply
frequency
(50/60 Hz)
as per IEC 61000-4-8
NOTE equals AC line voltage prior to application of test level.
MPC_M / MPE_HM / MPE_PM-BA-e-1414
IEC 60601 test level
± 6 kV contact discharge
± 8 kV air discharge
± 2 kV for power lines
+ 1 kV for input and
output lines
± 1 kV voltage
Live wire - live wire
± 2 kV voltage
Live wire - earth
< 5 %
(> 95 % dip of )
for ½ period
40 %
(> 60 % dip of )
for 5 periods
70 %
(> 30 % dip of )
for 25 periods
< 5 %
(> 95 % dip of )
for 5 s
3 A/m
Conformity Electromagnetic
environment - guideline
± 6 kV Floors should be made of
wood or concrete or tiled with
± 8 kV ceramic tiles. If floors are
covered with synthetic
material, relative air humidity
must be at least 30%.
± 2 kV The quality of the supply
voltage should match that of
+ 1 kV the typical business or hospital
environment.
± 1 kV The quality of the supply
voltage should match that of
the typical business or hospital
Inapplicable environment.
Compliance The quality of the supply
with voltage should match that of
requirements the typical business or hospital
under all environment. Where the user
postulated of the medical device demands
conditions continuous operation even
during disruptions to the power
supply, we recommend
Controlled powering the floor scale
switch off MPC/MPE by no-break power
Return to supply or battery.
undisturbed
situation after
user
intervention.
3 A/m Magnetic fields for the supply
frequency should match the
50/60 Hz typical values found in the
particular business or hospital
environment.
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