marsden M-550BT, Руководство пользователя

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Guidance and manufacturer
’s declaration – electromagnetic immunity.
The M-550 is intended for use in the electromagnetic environment specified below. The customer or user of
the M-550 should ensure that it is used in such an environment.
Immunity Test IEC 60601 test level Compliance level Electromagnetic environment-
guidance
Conducted RF
IEC61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150KHx to 80MHz
3 V/m 80MHz to 2,5GHz
3 Vrms
3 V/m Portable and mobile RF
communications equipment should be
used no closer to any part of the M-
550 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 80MHz to 800MHz
d = 2,3 √
P 800MHz to 2,5GHz
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, should
be less than the compliance level in
each frequency range.
Interference may occur in the vicinity
of equipment marked with the
following symbol:
NOTE1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2 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 M-550 is used exceeds the application RF compliance level above, the M-550 should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-
orienting or relocating the M-550.
B) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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