21
The
device
is intended for use in the electromagnetic environment specified below. The customer or the user
of the
device
should assure that it is used in such an environment.
Immunity
test
IEC 60601 test
level
Compliance
level
Electromagnetic environment - guidance
Portable and mobile RF communications equipment
should be used no closer to any part of the device,
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Conducted RF
IEC 61000-4-6
3 V
rms
150 kHz to 80 MHz
3 V RMS outside the
ISM band, 6 V RMS
in the ISM and
amateur bands
80% AM at 1kHz
Not applicable
Recommended separation distance
d=0.35√p
d=1.2√p
Radiated RF
IEC 61000-4-3
10 V/m
80 MHz to 2.7 GHz
80% AM at 1kHz
10 V/m
80 MHz to 2.7
GHz
80% AM at 1kHz
80MHz to 800MHz
：
d=1.2√p
800MHzto 2.7GHz
：
d=2.3√p
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
distance.
Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey, should be less than the
compliance level in each frequency range. Interference
may occur in the vicinity of equipment marked with the
following symbol:
NOTE 1
At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
a
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,
