Appendix
Operating manual NORA Pro
V0.1 E
Page 56 of 60
Guidance and manufacturer’s declaration - electromagnetic immunity (Table 204)
The product has been designed for use in the hereafter listed electromagnetic environments. The customer
or the user of the product must ensure that it is used in such environment.
Immunity
testing
IEC 60601-
Test level
Compliance
level
Electromagnetic
environment guidance
Conducted HF
IEC 61000-4-6
Radiation HF
IEC 61000-4-3
3 Vrms
150 kHz up
to 80 MHz
3 V/m
80 MHz up to
2.5 GHz
10 Vrms
3 V/m
Portable and mobile HF communications
equipment should be used no closer to any
part of the product including cables, than
the recommended separation distance
calculated in accordance with the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
d=0.35√P
d=1.2√P 80 MHz up to 800 MHz
d=2.3√P 800 MHz up to 2.5 GHz
With
P
as the rated output of the transmitter
in Watt (W) in accordance with the
manufacturer’s specifications and
d
as the
recommended separation distance in meter
(m).
The field strength of fixed HF-transmitters
as determined by an electromagnetic field
survey,
a
– should be less than the
COMPLIANCE LEVEL in each frequency
range.
b
In the vicinity of equipment marked with the
following symbol, interference may occur:
NOTE 1:
At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2:
This manual could possibly not apply to all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
a
The field strength of fixed RF transmitters, such as base stations of mobile phones and land mobile radios,
amateur radio stations, AM and FM radios as well as radio and television broadcast media cannot be
predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF
transmitters, an electromagnetic site survey is recommended. If the field strength measured in the
environment where the product is to be used, exceeds the applicable HF compliance level, special care
should be taken that a normal operation of the product can be guaranteed. In case anomalies are identified,
additional measures could be required, such as a different alignment or a change of the location of the
product.
b
In the frequency range from 150 kHz to 80 MHz, the field strength must be less than 10 V/m.
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