21
E
6.
Guidance and manufacture’s declaration – electromagnetic immunity
The CIRCULATION PRO is intended for use in the electromagnetic environment specified below. The
customer or the user should assure that it is used in such an environment.
Immunity test
IEC 60601 test
level
Compliance level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 V/ms
150 kHz to 80
MHz
3 V/m
26 MHz to 2.5
GHz
10 V/m
26 MHz to 2.5
GHz
3 V/ms
3 V/m
10 V/m
Portable and mobile RF communications
equipment should be used no closer to
any part of the ELECTRO FLEX, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
d = 1,2
√
—
P
d = 1,2
√
—
P
80 MHz to 800 MHz
d = 2,3
√
—
P
800 MHz to 2.5 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
compliance 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.
a
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
CIRCULATION PRO is used exceeds the applicable RF compliance level above, the CIRCULATION
PRO should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the CIRCULATION PRO.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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