SciCan E-STATIS Prep 40-P Manuel De L'opérateur page 18

6 Information on Electromagnetic Compatibility
NOTE: U is the alternating mains voltage before the test level is used.
T
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not be applicable in every case. The spread of electromagnetic waves is absorbed and reflected
by buildings, objects and people.
a
The ISM frequency bands (for industrial, scientific and medical applications) 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.
b
The conformance levels in the ISM frequency bands between 150 kHz and 80 MHz and the frequency range of 80 MHz and 2.5
GHz are intended to reduce the probability that mobile and portable communications equipment will produce disturbances
when they are unintentionally brought near the patient. For this reason, the additional factor of 10/3 is used when calculating the
recommended safe distances within these frequency ranges.
c
The field strength of stationary transmitters such as base stations of mobile telephones and land mobile radio devices, amateur
radio stations, AM and FM, radio and television broadcasters cannot be theoretically predetermined. To determine
the electromagnetic environment of stationary transmitters, a study of the location should be considered. When the measured field
strength at the site where the medical device is used exceeds the above conformance level, the medical device should be
monitored to demonstrate proper function. When unusual performance features are observed, additional measures may be
necessary such as realigning or moving the medical device.
d
Within the frequency range of 150 kHz to 80 MHz, the field strength should be less than 3 V
Recommended safe distance between portable and mobile HF telecommunications equipment and the medical device
The medical device is intended for use in an electromagnetic environment in which HF disturbances are controlled. The customer
or the user of the medical device can help prevent electromagnetic disturbances by maintaining the minimum distance between
portable and mobile HF telecommunications devices (transmitters) and the medical device depending on the output of the
communication device as indicated below.
Safe distance depending on the transmission frequency:
Rated power of the
transmitter / W
150 kHz to 80 MHz d=0.35 √P
0.01 0.04
0.1 0.11
1 0.35
10 1.11
100 3.50
For transmitters whose maximum rated power is not in the above table, the recommended safe distance d in meters (m) can be
calculated using the equation for the respective gap, where P is the maximum rated power of the transmitter in Watts (W)
according to the manufacturer's information.
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not be applicable in every case. The spread of electromagnetic waves is absorbed and reflected
by buildings, objects and people.
Page 18
80 MHz to 800 MHz d=0.35 √P
0.04
0.11
0.35
1.11
3.50
V/m.
eff
800 MHz to 2.5 GHz d=0.70 √P
0.07
0.22
0.70
2.21
7.00
E-STATIS Prep 40-P