Voltage Dips, short
interruptions and
voltage variations
on power supply
input lines IEC
61000-4-11
0% UT for 0,5 cycle
0% UT for 1 cycle
70% UT(30% dip in
UT) for 25 cycles
0% 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 M-110
requires continued operation
during power mains
interruptions, it is
recommended that the
MEDICAL SCALE M-110 be
powered from an
uninterruptible power supply
or a battery.
Power
frequency(50/60
Hz) magnetic field
IEC 61000-4-8
30 A/m
3 A/m
The MEDICAL SCALE M-110
power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
NOTE UT is the a.c. mains voltage prior to application of the test level.
Guidance and manufacturer’s declaration-electromagnetic immunity
The MEDICAL SCALE M-110 is intended for use in the electromagnetic environment specified
below.
The customer or the user of the MEDICAL SCALE M-110 should assure that is used in such and
environment.
Immunity test
IEC 60601 test level
Compliance
level
Electromagnetic environment-
guidance
Conducted RF
IEC 61000-4-6
3 Vrms
150 KHz to 80 MHz
6 V in ISM bands
between 0,15 MHz and
80 MHz
80 % AM at 1 kHz
3 Vrms
Portable and mobile RF
communications equipment
should be used no closer to any
part of the MEDICAL SCALE M-
110 including cables, than the
recommended separation
distance calculated from the
equation applicable to the
frequency of the transmitter.
Recommended separation
distance:
d = 1,2
√
P
d = 1,2
√
P
80MHz to 800 MHz
d = 2,3
√
P
800MHz to 2,7 GHz
Where
P
is the maximum output
power rating of the transmitter
in watts (W) according to the
transmitter manufacturer and
d
is the recommended separation
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