3M Ranger 245 Bedienungsanleitung Seite 18

Ranger™ Blood/Fluid Warming System Model 245
g '
uiDance anD manuFacturer
The model 245 is intended for use in the electromagnetic environment specified below� The
customer or the user of the model 245 should assure that it is used in such an environment�
i t iec 60601
mmunity est
test level
Conducted RF 3 Vrms
IEC 61000‑4‑6 150 kHz to 80 MHz
Radiated RF 3 V/m
IEC 61000‑4‑3 80 MHz to 2,5 GHz
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�
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
a
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 model 245 is used
exceeds the applicable RF compliance level above, the model 245 should be observed to
verify normal operation� If abnormal performance is observed, additional measures may be
necessary, such as re‑orienting or relocating the model 245�
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m�
b
English 34-8719-2502-9
–
s Declaration electromagnetic immunity
c
omPliance
level
3 Vrms
3 V/m
e
lectromagnetic
-
environment guiDance
Portable and mobile RF
communications equipment should
be used no closer to any part of
the model 245, 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
meters (m)�
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey,
a
be less than the compliance level in
each frequency range�
b
Interference may occur in the vicinity
of equipment marked with the
following symbol:
English 13
should