USER
MANUAL
41
51335-006
EEG System
Recommended separation distance between portable and mobile RF communications equipment
and the R40 EEG System
IEC 60601-1-2 / EN 60601-1-2
The R40 is intended for use in the electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the R40 can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment (transmitters) and the R40 as
recommended below, according to the maximum output power of the communications equipment.
If any electromagnetic interference is encountered, the patient and equipment should move to an area without
interference. In any case, the electromagnetic interference does not pose any risks to the patient, as the R40 is a
non-invasive recording device that does not modify or interact with the patient.
Rated maximum output
power of transmitter
Separation distance according to frequency of transmitter
W
150 kHz to 80 MHz
d = 1.17
√
P
80 MHz to 800 MHz
d = 1.17
√
P
800 MHz to 2.5 GHz
d = 2.33
√
P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
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:
At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE:
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
Appendix 6
Summary of Contents for neuro R40
Page 1: ...USER MANUAL EEG System ...
