Beurer BM 90 - Manual (Page 99)

99
Table 2
For all Me eQuIPMeNT and Me sYsTeMs
Guidance and manufacturer’s declaration - electromagnetic immunity
The BM90 is intended for use in the electromagnetic environment specified below. The customer or the user of
BM90 should assure 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 floor
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
±2kV for
power supply lines
Mains power quality should
be that of a typical commer-
cial or hospital environment.
Surge IEC
61000-4-5
±1 kV line(s)
to line(s)
±1 kV
differential mode
Mains power quality should
be that of a typical commer-
cial or hospital environment.
Voltage dips, short in-
terruptions and voltage
variations on power
supply input lines IEC
61000-4-11
<5% U
T
(>95% dip in U
T
)
for 0.5 cycle
<5% U
T
(>95% dip in U
T
)
for 0.5 cycle
Mains power quality should
be that of a typical commer-
cial or hospital environment.
If the user of the BM90
requires continued operation
during power mains inter-
ruptions, it is recommended
that the BM90 be powered
from an uninterruptible power
supply or a battery.
40% U
T
(60% dip in U
T
)
for 5 cycles
40% U
T
(60% dip in U
T
)
for 5 cycles
70% U
T
(30% dip in U
T
)
for 25 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 5 sec
Power frequency
(50Hz) magnetic
field IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic
fields should be at levels
characteristic of a typical lo-
cation in a typical commercial
or hospital environment.
NOTe U
T
is the a.c. mains voltage prior to application of the test level.