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EMC Guidance
Table 4: Guidance and MANUFACTURER'S declaration – electromagnetic IMMUNITY – for ME EQUIPMENT and ME SYSTEMS
that are not LIFE-SUPPORTING
Guidance and manufacturer's declaration – electromagnetic immunity
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.
Immunity test
IEC 60601
test level
Conducted RF
3 Vrms 150 kHz to 80 MHz
IEC 61000-4-6
Radiated RF
3 V / m 80 MHz to 2.5 GHz
IEC 61000-4-3
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 re-orienting or relocating the device.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V / m.
b
Compliance
Electromagnetic environment – guidance
level
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
P
3 Vrms
d = 1.167
3 V / m
80 MHz to 800 MHz: d = 1.167
800 MHz to 2.5 GHz: d = 2.333
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 meters (m).
Field strengths from fixed RF transmitters, as determined by an
electromagnetic site survey
in each frequency range
Interference may occur in the vicinity of equipment marked with the
following symbol:
P
P
a
, should be less than the compliance level
b
.
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