36
Electromagnetic Immunity:
This device is intended for use in the electromagnetic environment specified below. The user of this device should make sure it is used in such an environment.
I
mmuni
t
y Tes
t
IE
C 60601
Tes
tL
evel
Complian
c
e
L
evel
E
le
ct
romagne
t
i
c E
nvironmen
t
-
G
uidan
c
e
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
3 Vrms
3 V/m
Recommended separation distance:
d = 1.2
√P @150 kHz to 80 MHz
d = 1.2
√P @ 80 MHz to 800 MHz
d = 2.3
√P @ 800 MHz to 2.5 GHz
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.Where P is the maximum output
power rating of the transmitter in watts (W)
d is the recommended separation distance in meters (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
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 the proximity of structures, objects, and people.
a:
Field strengths from transmitters, such as base stations for radio (mobile/cordless) telephones, 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 relocating the device.
Recommended Separation Distances between Portable and Mobile RF Communications Equipment and This Device:
The device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. 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.
Rated Maximum Power
O
u
t
pu
t
of Transmi
tt
er (W)
S
epara
t
ion
D
is
t
an
c
e
Acc
ording
t
o
F
requen
c
y of Transmi
tt
er
(m)
150 k
H
z
t
o 80
MH
z
d = 1.2
√P
80
MH
z
t
o 800
MH
z
d = 1.2
√P
800
MH
z
t
o 2.5
GH
z
d = 2.3
√P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
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).
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.
