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 2.7 GHz
3 Vrms
3 V/m
Portable and mobile RF
communications equipment
should be used no closer to
any part of the 2874
IIsso
oT
To
ou
urr pump, including
cables, than the
recommended separation
distance calculated from the
equation appropriate for the
frequency of the transmitter.
Recommended separation
distance
D=(1.2) (√
P
)
80 MHz to 800 MHz
D=(2.3) (√
P
)
800 MHz to 2.7 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:
N
No
otte
e
•
At 80 MHz and 800 MHz, the higher frequency range applies.
•
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
•
The ISM (Industrial, Scientific, and Medical) bands between 0.15 MHz and 80 MHz are 6.765 MHz to 6.795 MHz;
13.553 MHz to 13.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz.
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 2874 IIsso
oT
To
ou
urr pump is used exceeds the applicable
RF compliance level above, the 2874 IIsso
oT
To
ou
urr pump should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating the 2874 IIsso
oT
To
ou
urr
pump.
b
Over the frequency range 150 kHz to 80 MHz, field strengths are less than 3 Vrms.
EN
38
2874-009-002 Rev A.1
