46
Voltage dips, short
interruptions 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 commercial
and/or hospital environment. If
the user of the product requires
continued
operation
during
power mains interruptions, it is
recommended that the product
be
powered
from
an
uninterruptible power supply or a
battery.
Power frequency
magnetic field
IEC 61000-4-8
3A/m
Power frequency magnetic fields
should be at levels characteristic
of a typical location in a typical
commercial
or
hospital
environment.
Note: U
T
is the mains (AC) voltage before apply test levels.
RF – frequency of EM radiation section, which frequency is between the low range of radio
frequencies of long waves and the infrared range; useful for radio transmission. Limit
frequencies are 9 kHz and 3 000 GHz.
Table 204
Manufacturer’s declaration – electromagnetic immunity
The product is suitable for use in a specific electromagnetic environment. The customer and/or
the user of the product should assure that it is used in an electromagnetic environment as
described below.
Immunity test
IEC 60601
Level
Compliance
Level
Electromagnetic Environment
Guidance
Portable and mobile RF communications
equipment should be used no closer to
any part of the product, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance:
