Charder MS 4940, Руководство пользователя

Страница: 9 / 42

- 8 -
Guidance and manufacturer’s declaration-electromagnetic immunity
The MEDICAL SCALE MS4940 is intended for use in the electromagnetic
environment specified below.
The customer or the user of the MEDICAL SCALE MS4940 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 floors are covered with
synthetic material, the
relative humidity should
be at least 30%
Electrical fast
transient/burst
IEC 61000-4-4
± 2kV for power
supply lines +
1kV for
input/output
lines ± 2kV for power
supply lines Not
applicable Mains power quality
should be that of a typical
commercial or hospital
environment.
Surge IEC
61000-4-5
± 1kV line(s) to
line(s) ± 2kV
line(s) to earth ± 1kV differential
mode Not
applicable Mains power quality
should be that of a typical
commercial or hospital
environment.
Voltage Dips,
short
interruptions
and voltage
variations on
power supply
input lines IEC
61000-4-11 <5% UT(>95%
dip in UT) for 0,5
cycle 40%
UT(60% dip in
UT) for 5 cycles
70% UT(30%
dip in UT) for 25
cycles <5%
UT(>95% dip in
UT) for 5 s <5% UT(>95%
dip in UT) for 0,5
cycle 40%
UT(60% dip in
UT) for 5 cycles
70% UT(30%
dip in UT) for 25
cycles <5%
UT(>95% dip in
UT) for 5 s Mains power quality
should be that of a typical
commercial or hospital
environment. If the user
of the MEDICAL SCALE
MS4940 requires
continued operation
during power mains
interruptions, it is
recommended that the
MEDICAL SCALE
MS4940 be powered
from an uninterruptible
power supply or a
battery.