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• 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:
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment –
guidance
Conducted
RF IEC 61000-
4-6
3V rms
At 0.15-80 MHz
6V rms
At ISM & Radio Amateur
Freq.
Not Applicable
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.
Radiated RF
IEC 61000-4-3
Proximity fields
from RF wireless
communications
equipment IEC
61000-4-3
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
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
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:
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
Rated maximum output
power of transmitter
W
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
Not Applicable
80 kHz to 800 MHz
d = 1.2
800 kHz to 2.7 GHz
d = 2.3
0.01
Not Applicable
0.12
0.23
0.1
Not Applicable
0.38
0.73
1
Not Applicable
1.2
2.3
10
Not Applicable
3.8
7.3
100
Not Applicable
12
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For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres
(m) can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output
power rating of the transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for 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.