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Guidance and manufacturer’s declaration - electromagnetic immunity
The LMD-3250MD is intended for use in the electromagnetic environment specified below. The customer or the user of the LMD-
3250MD should assure that it is used in such as 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
transient/burst
IEC 61000-4-4
±2 kV for power
supply lines
±1 kV for input/
output lines
±2 kV for power
supply lines
±1 kV for input/
output 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% U
T
(> 95% dip in U
T
)
for 0.5 cycle
40% U
T
(60% dip in U
T
)
for 5 cycles
70% U
T
(30% dip in U
T
)
for 25 cycles
< 5% U
T
(> 95% dip in U
T
)
for 5 sec
< 5% U
T
(> 95% dip in U
T
)
for 0.5 cycle
40% U
T
(60% dip in U
T
)
for 5 cycles
70% U
T
(30% dip in U
T
)
for 25 cycles
< 5% U
T
(> 95% dip in U
T
)
for 5 sec
Mains power quality should be that of a typical commercial or
hospital environment. If the user of the LMD-3250MD requires
continued operation during power mains interruptions, it is
recommended that the LMD-3250MD be powered from an
uninterruptible power supply or a battery.
Power frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic fields should be at least characteristic
of a typical location in a typical commercial or hospital
environment.
NOTE: U
T
is the a.c. mains voltage prior to application of the test level.