– 63 –
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.
3V rms
At 0.15-80 MHz
6V rms
At ISM & Radio
Amateur Freq.
Portable and mobile RF commu
-
nications 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 frequ
-
ency 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 speci
-
fied 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 se
-
paration distance
d = 1.2
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 com
-
pliance 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.
