116
For Medical Staff
Table 5 –Recommended separation distances between portable and mobile RF communications equipment and the EQUIPMENT
or SYSTEM–for LIFESUPPORTING EQUIPMENT and SYSTEMS (see 5.2.2.2)
Recommended separation distances between portable and mobile RF communications
equipment and the TERUFUSION Infusion Pump Type LF3
The TERUFUSION Infusion Pump Type LF3 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the TERUFUSION Infusion Pump Type LF3 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment
(transmitters) and the TERUFUSION Infusion Pump Type LF3 as recommended below, according to the maximum output power
of the communications equipment.
Separation distance according to frequency of transmitter
m
Rated maximum output
power of transmitter
W
150 kHz to 80 MHz
outside ISM bands
d=1.2
√
P
150 kHz to 80 MHz in
ISM bands
d=1.2
√
P
80 MHz to 800 MHz
d=1.2
√
P
800 MHz to 2.5 GHz
d=2.3
√
P
0.01
0.12
0.12
0.12
0.23
0.1
0.38
0.38
0.38
0.73
1
1.2
1.2
1.2
2.3
10
3.8
3.8
3.8
7.3
100
12
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres (m) can
be determined 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.
Notes
1. At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
2. The ISM (industrial, scientific and medical) bands between 150 kHz 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.
3. An additional factor of 10/3 is used in calculating the recommended separation distance for transmitters in the ISM
frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to 2.5 GHz to decrease the likelihood
that mobile/portable communications equipment could cause interference if it is inadvertently brought into patient areas.
4. These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
