Beurer medical BM 77 Mode D'emploi page 141

Table 2
Guidance and manufacturer's declaration – electromagnetic immunity
The BM 75 is intended for use in the electromagnetic environment specified below. The customer or the user of the BM 75 should assure that it is
used in such an environment.
Immunity test
Electrostatic discharge (ESD)
IEC 61000-4-2
Electrical fast transient/burst
IEC 61000-4-4
Surge
IEC 61000-4-5
Voltage dips, short interrup-
tions and voltage variations
on power supply input lines
IEC 61000-4-11
Power frequency (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
IEC 60601 test level
± 6 kV contact
± 8 kV air
± 2 kV for power supply lines
± 1 kV for input/output lines
± 1 kV line(s) to line(s)
± 2 kV line(s) to earth
<5 % U (>95 % dip in U )
T T
for 0.5 cycle
40 % U (60 % dip in U )
T T
for 5 cycles
70 % U (30 % dip in U )
T T
for 25 cycles
<5 % U (>95 % dip in U )
T T
for 5 s
3 A/m
Compliance level
± 6 kV contact
± 8 kV air
± 2 kV for power supply lines
N/A
± 1 kV differential mode
N/A
<5 % U (>95 % dip in U )
T T
for 0.5 cycle
40 % U (60 % dip in U )
T T
for 5 cycles
70 % U (30 % dip in U )
T T
for 25 cycles
<5 % U (>95 % dip in U )
T T
for 5 s
3 A/m
141
Electromagnetic environment – guidance
Floors should be wood, concrete 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 com-
mercial or hospital environment.
Mains power quality should be that of a typical com-
mercial or hospital environment.
Mains power quality should be that of a typical com-
mercial or hospital environment. If the user of the BM 75
requires continued operation during power mains inter-
ruptions, it is recommended that the BM 75 be powered
from an uninterruptible power supply or a battery.
Power frequency magnetic fields should be at levels
characteristic of a typical location in a typical commer-
cial or hospital environment.