26
Guidance and manufacture’s declaration – electromagnetic immunity –
for EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING
Guidance and manufacture’s declaration – electromagnetic immunity
The CMS70A is intended for use in the electromagnetic environment specified below. The customer
or the user of CMS70A should assure that it is used in such an environment.
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic environment -
guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3Vrms
150 kHz to
80 MHz
outside ISM
bands
3 V/m
80 MHz to
2.5 GHz
3 Vrms
(for main power
line)
1Vrms
(for probe)
3 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the CMS70A, including cables, than
the recommended separation distance cal-
culated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
80 MHz to 800 MHz
800 MHz to 2.5 GHz
Where
P
is the maximum output power rat-
ing of the transmitter in watts (W) according
to the transmitter manufacturer and
d
is the
recommended separation distance in me-
tres (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:
NOTE 1
At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
a:
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 CMS70A is used exceeds
the applicable RF compliance level above, the CMS70A should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as re-orienting or relocating the CMS70A.
b:
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
3.5
E
1
√
P
d
=
7
E
1
√
P
d
=
3.5
V
1
√
P
d
=
