Respironics EverFlo Gebrauchsanweisung Seite 14

G M
uidance and anufacturer
electromagnetic environment specified below. The user of this device should make sure it is used in such an environment.
i t iec 60601 t
MMunity est
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.
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 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.
b: Over the frequency range 150 kHz to 80 MHz, the field strengths should be less than 3 V/m.
r s
ecoMMended eparation
d :
The device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer
evice
or the user of this device can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and this device as recommended below, according to the maximum output power of the
communications equipment.
r M p
ated axiMuM ower
o t
utput of ransMitter
(w)
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated
using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W)
according to the transmitter manufacturer.
Note 1: At 80 MHz and 800 MHz, the separation distance for 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.
' d - e
s eclaration lectroMaGnetic
l c
est evel oMpliance
3 Vrms
3 V/m
d p
istances between ortable and
s
eparation
150 h 80 Mh
k z to z
d = 1.2
0.12
0.38
1.2
3.8
12
i :
This device is intended for use in the
MMunity
l e
evel lectroMaGnetic
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:
d = 1.2 150 kHz to 80 MHz
d = 1.2 80 MHz to 800 MHz
d = 2.3 800 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 , 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:
M rf c
obile oMMunications
d a f
istance ccordinG to requency of
( )
M
80 Mh 800 Mh
z to z
d = 1.2
0.12
0.38
1.2
3.8
12
EverFlo User Manual
e - G
nvironMent uidance
e t
quipMent and his
t
ransMitter
800 Mh 2.5 Gh
z to z
d = 2.3
0.23
0.73
2.3
7.3
23
3