Medisana LT 470, Instruction Manual

Page: 115 / 118

Normative Reference (Appendix)
Guidance and manufacturer’s declaration – electromagnetic immunity
The model LT 470 (“Mini Daylight” ) is intended for use in the electromagnetic
environment specified below. The customer or the user of the model LT 470
(“Mini Daylight” ) should ensure that it is used in such an environment.
Immunity test IEC 60601
test level
Compliance
level
Electromagnetic environ-
ment – guidance
Electrostatic
discharge
(ESD)
IEC 61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood, con-
crete 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
±2 kV for power
supply 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 varia-
tions
on power sup-
ply
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 model LT 470
(
“Mini Daylight”
) requires
continued operation during
power mains interruptions, it is
recommended that the model
LT 470 (
“Mini Daylight”
) be
powered from an uninterrupt-
ible power supply or a battery.
Power fre-
quency
(50/60 Hz)
magnetic field
IEC 61000-
4-8
3 A/m 3 A/m Power frequency magnetic
fields should be at levels
characteristic of a typical loca-
tion in a typical commercial or
hospital environment.
NOTE U
T
is the a.c. mains voltage prior to application of the test level.