Table 4 Guidance and MANUFACTURER’s declaration – electromagnetic IMMUNITY –
for ME
EQUIP
MENT and ME SYSTEMS that are not LIFE-SUPPORTING
Guidance and manufacturer’s declaration – electromagnetic immunity
IMMUNITY test
3 Vrms
3 V/m
Compliance
level
IEC 60601
TEST LEVEL
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
3 Vrms
150 kHz to
80 MHz
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.
Recommended separation distance
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.
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, 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:
P
=
d
P
=
d
80 MHz to 800 MH
P
=
d
2.3
800 MHz to 2,5 G
1.2
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 broad-
cast 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 3V/m.
b
1.2
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2.5 GHz
Table 6 Recommended separation distances between portable and mobile
RF communications equipment and the ME E
Q
UIPMENT or ME SYSTEM –
for ME
EQUI
PMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Recommended separation distances
between portable and mobile RF communications equipment and the device.
The device is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the device
can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmittters) and the
device as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum output
power of transmitter
(W)
Separation distance according to frequency of transmitter
(m)
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 80MHz and 800MHz, 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.
0.01
0.1
1
10
100
0.12
0.12
0.38
1.2
3.8
12
0.23
0.73
2.3
7.3
23
P
=
d
P
=
d
1.2
2.3
P
=
d
0.38
1.2
3.8
12
1.2
26
27
EMC GUIDANCE
EMC GUIDANCE
