44 Electromagnetic Compatibility
Resistance to Electromagnetic Interference
(Tables 202 and 204)
• When the measured field strength exceeds the
specified compliance level at the operating location of
the ICS 3000, observe the device in order to determine
whether it is functioning properly.
• If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or
relocating the device. In the frequency range of
150 kHz to 80 MHz, ensure that field strengths are
lower than 3 V/m.
Note: U
T
is the mains alternating voltage before applying the
test levels.
Test of Interference
Resistance
Test Level
According to
IEC 60601-1-2
Compliance Guidelines for the
Electromagnetic
Environment
Electrostatic discharge
(ESD)
According to
IEC 61000-4-2
±6 kV contact
discharge
±8 kV air
discharge
Same as test
level
• Operate the devices on
floors made of wood,
concrete, or ceramic tile.
If the floor is covered with
synthetic material, the
relative humidity must be
at least 30%.
Fast transient electric
interference (bursts)
According to
IEC 61000-4-4
±2 kV for power
lines
±1 kV for input
and output lines
Same as test
level
• Ensure that the power
supply quality is that of a
typical commercial and/
or hospital environment.
Surges
According to
IEC 61000-4-5
±1 kV push-pull
voltage
±2 kV push-
push voltage
Voltage drops, brief
interruptions, and
supply voltage
fluctuations
According to
IEC 61000-4-11
<5% U
T
for
1/2 period
>95% drop
40% U
T
for
5periods
60% drop
70% U
T
for
25 periods
30% drop
<5% U
T
for 5 s
>95% drop
Same as test
level
• Ensure that the power
supply quality is that of a
typical commercial and/
or hospital environment.
• If you require continued
operation during power
supply interruptions,
connect the device to an
uninterruptible power
supply or use a battery
for operation.
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