Poly-Spectrum-8/V (Technical Manual)
38
Guidance and manufacturer’s declaration – noise immunity
The system is intended for use in the electromagnetic environment specified
below. The customer or the user of the system should assure that it is used in
such an environment.
Immunity test
IEC 60601
test level
Compli-
ance
level
Electromagnetic
environment -
guidance
Radiated RF
wireless
communication
equipment
IEC 61000-4-
3:2006
Band
(MHZ)
Immunity
level
(V/m)
The use of portable and
mobile RF communica-
tions
equipment
can
adversely
affect
the
recording; do not use an
operating cellular phone
within 30 cm (12 inches) of
the system, the cables
and the electrodes to
avoid excessive noise on
the signals.
380-390
27
27 V/m
430-470
28
28 V/m
704-787
9
9 V/m
80-960
28
28 V/m
1700-1990
28
28 V/m
2400-2470
28
28 V/m
5100-5800
9
9 V/m
1)
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 system is used exceeds the applicable RF compliance
level above, the system should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as re-
orienting or relocating the system.
2)
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than
10 V/m.
3)
Ensured by PC compliance with IEC 61000-4-6 requirements.
Notes:
1. At 80 MHz and 800 MHz, the higher frequency range is applied.
2. These guidelines are not applied in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
