30
Table 4:
Guidance and MANUFACTURER’S declaration – electromagnetic IMMUNITY – for ME EQUIPMENT and ME SYSTEMS
that are not LIFE-SUPPORTING
EMC Guidance
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
Compliance
level
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
Conducted RF
IEC 61000-4-6
3 Vrms 150 kHz to 80 MHz Not
applicable
d =
Radiated RF
IEC 61000-4-3
3 V / m 80 MHz to 2.5 GHz
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
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
Note 2
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
a
b
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 [V
1
] V / m.
P
P
P
3.5
V
1
[—]
Содержание 1862.42
Страница 2: ...2 ...