Immunity
test
IEC 60601
test level
Compliance
level
Electromagnetic
environment – guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
Proximity
fields from
RF wireless
communications
equipment
IEC 61000-4-3
3V rms
At 0.15-80 MHz
6V rms
At ISM & Radio
Amateur Freq
10 V/m at 80-2700
MHz
AM Modulation
And 9-28V/m at
385-6000MHz,
Pulse Mode and
other Modulation.
The system shall
be tested as
specified in
IEC60601-1-2
Table 9 for
proximity fields
from RF wireless
communications
equipment using
the test methods
specified in
IEC 61000-4-3
Not Applicable
10 V/m at 80-2700
MHz
AM Modulation
And 9-28V/m at
385-6000MHz,
Pulse Mode and
other Modulation.
The system shall
be tested as
specified in
IEC60601-1-2
Table 9 for
proximity fields
from RF wireless
communications
equipment using
the test methods
specified in
IEC 61000-4-3
Recommended separation
distance
d = 1.2 80 MHz to 800 MHz
d = 2.3 800 MHz to 2.7 GHz
Guidance and manufacturer’s declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environments listed below, and should
only be used in such environments:
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.
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, additional measures may be necessary,
such as reorienting or relocating the device.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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 in metres (m).
Field strengths from fixed RF
transmitters, as determined by
an electromagnetic site survey,
a
should be less than the
compliance level in each
frequency range.
b
Interference may occur in the
vicinity of equipment marked
with the following symbol:
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