CentriMag
TM
Circulatory Support System Operation Manual (US)
Page 126 of 126
© 2019 Abbott– Document No PL-0047, Rev 11 (December 2019)
Recommended separation distances between portable and mobile RF
communications equipment and the CentriMag Circulatory Support System
The CentriMag Circulatory Support System with 2
nd
Generation CentriMag Console and Mag Monitor is intended for
use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of
the System can help prevent electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the System as recommended below, according to the
maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
outside ISM bands
d = 1.2
√
P
150 kHz to 80 MHz
inside ISM bands
d = 1.2
√
P
80MHz to 800
MHz
d = 1.2
√
P
800 MHz to 2.5
GHz
d = 2.3
√
P
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: 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.
NOTE 3: An additional factor of 10/3 has been incorporated into the formulae 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.
NOTE 4: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
