16
This equipment is intended for use in the electromagnetic environment specified below.
The customer or the user of this equipment should assure that it is used in such an environment.
Immunity Test
IEC 60601 Test
Level
Compliance
Level
Electromagnetic Environment – Guidance
Conducted RF
RF coupled into
lines
(IEC 61000-4-6)
Radiated RF
(IEC 61000-4-3)
150 kHz to 80
MHz
outside ISM
bands
a
150 kHz to 80
MHz
in ISM bands
a
3 Vrms
Portable and mobile RF communications equipment should
be used no closer to any part of the equipment, including
cables, than the recommended separation distance
calculated from the equation applicable to the frequency of
the transmitter as below.
Recommended separation distance:
d=1.2/V1]√P
d=1.2/√P 80 MHz to 800MHz
d=2.3√P 800 MHz to 2.5 GHz
Where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter
manufacturer and d is the recommended separation
distance in meters (m).
Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey
a
, should be less than the
compliance level in each frequency range
b
.
Interference may occur in the vicinity of equipment marked
with the following symbol:
a
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.
b
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile
radios, amateur radio, AM and FM radio broadcast, and TV broadcast cannot be predicted theoretically with accuracy.
To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be
considered. If the measured field strength in the location in which the equipment is used exceeds the applicable RF
compliance level above, the equipment should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or relocating the equipment.