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Guidance and manufacturer's declaration – ELECTROMAGNETIC IMMUNITY –
FOR EQUIPMENT AND SYSTEMS THAT ARE NOT LIFE-SUPPORTING
a) Field strengths from fixed RF 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 DEVICE is used exceeds the
applicable RF compliance level above, DEVICE should be observed to verify
normal operation. If abnormal performance is observed, additional measures
may be necessary, such as re-orienting or relocating DEVICE.
b) Over the frequency range 150kHz to 80MHz, field strengths should be less
than 3 V/m.
Recommended separation distances between portable and mobile RF
communications equipment for the device that are not life-supporting
Immunity test
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
(transmitters) and the device as recommended below, according to the
maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
(W)
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the
recommended separation distance d in metres (m) can be determined using the
IACER Srl
Test level
Conformity
IEC 60601
Separation distance according to the frequency of the
0.15MHz
80MHz to
to80MHz
800MHz
d=1.2√P
d=1.2√P
0.12
0.12
0.38
0.38
1.2
1.2
3.8
3.8
12
12
31
Electromagnetic
level
environment - guide
80MHz to 2.7MHz
d=2.3√P
0.23
0.73
2.3
7.3
23
transmitter (m)
MNPG304
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