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Compex Fit Manual

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EN
Compex Fit - User Manual
Immunity
test
Test level
IEC
60601
Observance
level
Electromagnetic
environment -
recommendations
Portable and mobile RF communication
devices must only be used relative
to the Compex Fit and its wiring at
a distance which is not less than the
spacing recommended and calculated
using the appropriate equation for the
transmitter’s frequency. Recommended
spacing
RF immunity
IEC 61000-4-6
3 Vrms
150 kHz to 80
MHz
Signal lines
Not applicable for
power supplies
of battery-powered
systems
d = 1,2√P
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5
GHz
10 V/m
26 MHz to 1 GHz
3 A/m
10 V/m
d = 1.2 √P 80 MHz to 800 MHz
d = 2.3 √P 800 MHz to 2.5 GHz
Where P is the maximum output power
of the transmitter in watts (W) set by
the manufacturer’s specifications and
where d is the recommended spacing
in metres (m). The field intensity of RF
fixed transmitters, as determined by an
electromagnetic survey a must be less
than the observance level to be found
in each frequency range b. Interference
may occur close to any appliance
identified by the following symbol::
NOTE 1: From 80 MHz to 800 MHz, the spacing for high frequency amplitude is applied.
NOTE 2: These guidelines may not be appropriate for some situations. Electromagnetic wave
propagation is modified by absorption and reflection due to buildings, objects and
persons.
a
The field intensity from fixed transmitters, such as radio telephone base stations (cellular/
wireless) and a mobile radio, amateur radios, AM and FM radio emissions and TV emissions
cannot be predicted with any accuracy. It may therefore be necessary to consider an analysis
of the electromagnetic environment of the site to calculate the electromagnetic environment
coming from RF fixed transmitters. If the field intensity measured in the environment where
the Compex Fit is located exceeds the appropriate RF observance level above, the Compex Fit
should be monitored to ensure it is operating properly. In the event of abnormal operation, new
measures may then be imposed, such as realignment or movement of the Compex Fit.
b
Above the frequency amplitude from 150 kHz to 80 MHz, the field intensity must be 3 V/m
… 172


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