CareFusion 36-SC01-STK Betriebshandbuch Seite 31

R adiated R F 3 V/m
IEC 61000-4-3 80 MHz to
2.5 GHz
NO TE 1 At 80 MHz and 800 MHz, the higher fre quency range applies.
NO TE 2 These guidelines m ay not apply in all situations. Ele ctromagnetic propagation
is affecte d by absorption and re flection from structures, obje cts and people.
a. Fie ld stre ngths from fixed transmitters, such as base stations for radio
(ce llular/cordless) telephones and land mobile radios, amateur radio, AM and FM
radio broadcast and TV broadcast cannot be predicted theore tically with accuracy.
To assess the e lectromagnetic e nvironment due to fixed RF transmitters, an
e le ctromagnetic site survey should be considered. If the measured field strength in
the location in which the Sm oke Check is used e xceeds the applicable R F compliance
le ve l above, the Smoke C heck should be observe d to ve rify normal operation.
If abnormal performance is observed, additional measure s may be necessary,
such as re -orientating or re locating the Smoke C heck.
b. O ve r the fre quency range 150 kHz to 80 MHz, field strengths should be less than
3 V/m .
3 V/m d = 1.2√P
d = 2.3√P
W he re P is the maximum output
powe r rating of the transmitter
in watts (W ) according to the
transmitter m anufacturer and d is
the re commended separation
distance in metre s (m).
Fie lds stre ngths from fixed RF
transmitters, as determined by an
e le ctro magnetic site survey,
should be less than the compliance
le ve l in each frequency range.
Inte rference may occur in the vicinity
of e quipment marked with the
following symbol:
29
80 MHz to 800 MHz
800 MHz to 2.5 GHz
a
b