g
m
uIdance and
anuFacturer
the 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 strength 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.
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.
r
m
ated
axImum
p
o
ower
utput oF
t
(w)
ranSmItter
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.
26
'
d
– e
S
eclaratIon
l
c
eSt
evel
omplIance
l
evel
3 V
3 V/m
S
d
eparatIon
IStance
150 kHz to 80 MHz
d = 1.2
0.12
0.38
1.2
3.8
12
I
lectromagnetIc
e
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:
a
ccordIng to
80 MHz to 800 MHz
d = 1.2
0.12
0.38
1.2
3.8
12
:
This device is intended for use in
mmunIty
e
– g
nvIronment
uIdance
F
t
requency oF
ranSmItter
800 MHz to 2.5 GHz
d = 2.3
(m)
0.23
0.73
2.3
7.3
23