Medisana LT 470 Instruction Manual page 115

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
Electrostatic ±6 kV contact
discharge ±8 kV air
(ESD)
IEC 61000-4-2
Electrical fast ±2 kV for power
transient/burst supply lines
IEC 61000-4-4
Surge ±1 kV differential
IEC 61000-4-5 mode
±2 kV common
mode
Voltage dips, <5 % U
short (>95 % dip in U
interruptions for 0,5 cycle
and
voltage varia- 40 % U
tions (60 % dip in U
on power sup- for 5 cycles
ply
input lines 70 % U
IEC 61000- (30 % dip in U
4-11 for 25 cycles
<5 % U
(>95 % dip in U
for 5 sec
Power fre- 3 A/m
quency
(50/60 Hz)
magnetic field
IEC 61000-
4-8
NOTE U is the a.c. mains voltage prior to application of the test level.
T
Normative Reference (Appendix)
IEC 60601 Compliance
test level
±6 kV contact
±8 kV air
±2 kV for power
supply lines
±1 kV differential
mode
±2 kV common
mode
<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
3 A/m
Electromagnetic environ-
level
Floors should be wood, con-
crete 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.
Mains power quality should be
T
) that of a typical commercial
T
or hospital environment. If
the user of the model LT 470
"Mini Daylight"
(
T
)
continued operation during
T
power mains interruptions, it is
recommended that the model
LT 470 (
T
)
powered from an uninterrupt-
T
ible power supply or a battery.
T
)
T
Power frequency magnetic
fields should be at levels
characteristic of a typical loca-
tion in a typical commercial or
hospital environment.
ment – guidance
) requires
"Mini Daylight"
) be