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 broad-
cast 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 ventilator is used exceeds the applicable RF compliance level above, the ventilator
should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the ventilator.
b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than
10 V/m.
8.3.3 Guidance and Manufacturer's Declaration – Electromagnetic Emission
The ventilator are intended for use in the electromagnetic environment specified below.
The customer or the user of the ventilator should assure that it is used in such an
environment
Emissions test Compliance Level Electromagnetic Environ-
ment - Guidance
RF emissions
CISPR 11
Group 1 The ventilator use RF energy
only for its internal function.
Therefore, its RF emissions
are very low and are not likely
to cause any interference in
nearby electronic equipment.
RF emissions
CISPR 11
Class B The ventilator are suitable for
use in all establishments,
including domestic establish-
ments and those directly con-
nected to the public low-
voltage power supply network
that supplies buildings used
for domestic purposes.
Harmonic
emissions
IEC 61000-3-2
Class A
Voltage fluctua-
tions/flicker
emission
IEC 61000-3-3
Complies
Technical Specifications 155
Doc. 006149 D-3
Vivo 45 User manual