BP5BB5LR_UMEN_V05-20170703 27
Electromagnetic environment
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
<5% UT (>95% dip)
for 0.5 cycle;
40% UT (60% dip)
for 5 cycles;
70% UT (30% dip)
for 25 cycles;
<5% UT (>95% dip)
for 5 sec.
Note: U
T
is the
nominal voltage of
mains.
Mains power quality is that of
a typical commercial and/or
hospital environment.
Power frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
Power frequency magnetic
fields are at levels
characteristic of a typical
location in a typical
commercial and/or hospital
environment.
Conducted RF
IEC 6100-4-6
Mains power quality is that of
a typical commercial and/or
hospital environment
Radiated RF
IEC 61000-4-3
Recommended Separation
distance:
d=[3,5/V1]√P
d=[3,5/3V/m]√P (80MHz –
800MHz)
d=[7/3V/m]√P (800MHz –
2,5GHz)
where:
P is the highest radiated
power disclosed by the
manufacturer of transmitter
[W] and d is the
recommended separation
distance [m].
Field strengths from fixed RF
transmitters, as determined
by an electromagnetic site
survey
1
a should be less than
the compliance level in each
frequency range
2
You may observe disturbance
nearby any of those
equipment which has the
following indication:
Note: in case of frequency 80MHz or 800 MHz, the formula for the higher range is applicable.
Note: these are guidelines. Actual conditions may vary.
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile
radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To
assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If
the measured field strength in the location in which the device is used exceeds the applicable RF compliance level above, the
device should be observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the device.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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