ACUTRONIC fabian HFO User Manual

Electromagnetic compatibility statement 171
fabian HFO | SW 5.1.x
Ref: 113003.EN / Date 2020-02-10
Recommended safety distances between portable and mobile
HF communication devices and the device "fabian HFO"
"fabian HFO" is intended to be operated in an electromagnetic environment with controlled HF
interferences. The operator of the "fabian HFO" can help avoid electromagnetic interference by
maintaining the minimum distance between portable and mobile HF telecommunication devices
(transmitters) and the device "fabian HFO" – depending on the output rating of the communication device,
as listed below.
Maximum
transmitter power
output
W
Safety distance depending on transmission frequency
m
150 kHz to 80
MHz outside
ISM bands
150 kHz to 80 MHz
within ISM bands
80 MHz to
800 MHz
800 MHz to
2.5 GHz
d = 0.35√P
d = 1.2√P
d = 1.2√P
d = 2.3√P
0.01
0.04
0.12
0.12
0.23
0.1
0.13
0.38
0.38
0.73
1
0.40
1.2
1.2
2.3
10
1.3
3.8
3.8
7.3
100
4.0
12
12
23
For transmitters with a maximum power output not listed in the above table the recommended safety distance d in
metres (m) can be determined using the equation from the corresponding column, with P being the transmitter’s
maximum power output Watts (W) per the transmitter’s manufacturer specifications.
REMARK 1 At 80 MHz and 800 MHz the safety distance of the higher frequency applies.
REMARK 2 The ISM bands (industrial, scientific and medical) 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 40.7 MHz.
REMARK 3 An additional factor of 10/3 is used when calculating the recommended safety distance for transmitters
within the ISM frequency between 150kHz and 80 MHz and between 80MHz and 2.5GHz to reduce the probability of
mobile/portable transmitters causing interference if accidentally brought into the vicinity of the patient.
REMARK 4 These guidelines may not apply to all case. The propagation of electromagnetic quantities is
influenced by absorption and reflexion of buildings, objects and people.

ACUTRONIC fabian HFO Specifications

General

Brand	ACUTRONIC
Model	fabian HFO
Category	Medical Equipment
Language	English