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Electromagnetic immunity
The MD series display is intended for use in the electromagnetic environment specified below.
The customer or the user of the MD series display should assure that it is used in such an
environment.
Immunity test
Electrostatic discharge
(ESD) IEC/EN 61000-4-2
Electrical fast
transient/burst IEC/EN
61000-4-4
Surge IEC/EN 61000-4-5 ± 1 kV line(s) to line(s)
Voltage dips, short
interruptions and voltage
variations on power
supply input lines
IEC/EN 61000-4-11
Power frequency (50/60
Hz) magnetic field
IEC/EN 61000-4-8
56
Regulatory statements
IEC/EN 60601
Test levels
± 6 kV contact
± 6 kV contact
± 8 kV air
± 8 kV air
± 2 kV for power supply
± 2 kV for power supply
lines
lines
± 1kV for input/output
± 1 kV for input/output
lines
lines
± 1 kV line(s) to line(s)
± 2 kV line(s) to earth
± 2 kV line(s) to earth
< 5% U
1(> 95% dip in
< 5% U
T
U
) for 0.5 cycle
for 0.5 cycle
T
40% U
40% U
(60% dip in U
)
T
T
5 cycles
for 5 cycles
70% U
70% U
(30% dip in U
)
T
T
25 cycles
for 25 cycles
< 5% U
< 5% U
(>95% dip in
T
for 5s
U
) for 5s
T
3 A/m
3 A/m
Compliance level
Floors should be wood, concrete or
ceramic tile. If floors are covered with
synthetic material, the relative humidity
should be at least 30%
Mains power quality should be that of a
typical commercial or hospital
environment
Mains power quality should be that of a
typical commercial or hospital
environment
(> 95% dip in U
)
Mains power quality should by that of a
T
T
typical commercial or hospital
environment.
(60% dip in U
) for
T
T
If the user of the MD series LED Display
requires continued operation during
(30% dip in U
) for
T
T
power mains interruptions, it is
recommended that the MD series LED
(>95% dip in U
)
T
T
Display be powered from an
uninterruptible power supply or a battery.
Power frequency magnetic fields should
be at levels characteristic of a typical
location in a typical commercial or
hospital environment.
Electromagnetic environment –
guidance
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