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Beurer BM 20 Manual

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Guidance and manufacturer’s declaration – electromagnetic immunity – for all EQUIPMENT and SYSTEMS
Guidance and manufacturer’s declaration – electromagnetic immunity
The BM 20 is intended for use in the electromagnetic environment specifi ed below. The customer or the user of BM 20 should assure that it is
used in such an 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 fl oor 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 sup-
ply lines
± 2 kV for power sup-
ply lines
Mains power quality should be that of a typical com-
mercial or hospital environment.
Surge
IEC 61000-4-5
± 1 kV di erential mode
± 2 kV common mode
± 1 kV di erential mode
± 2 kV common mode
Mains power quality should be that of a typical com-
mercial or hospital environment.
Voltage dips, short interrup-
tions 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 com-
mercial or hospital environment. The BM 20 can con-
tinue the operation during power mains interruptions
due to the usage of battery.
Power frequency (50/60 Hz)
magnetic fi eld
IEC 61000-4-8
3 A/m 3 A/m
Mains power quality should be that of a typical com-
mercial or hospital environment.
NOTE: U
T
is the a.c. mains voltage prior to application of the test level.
… 74


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