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FreeStyle & FreeStyle 5 User Manual — 29
Guidance and Manufacturer’s Declaration–Electromagnetic Immunity
The FreeStyle and FreeStyle 5 are intended for use in the electromagnetic environment specified below. The
customer or the user of the FreeStyle and FreeStyle 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
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
3 Vrms
3 V/m
Portable and mobile RF
communications equipment should
be used no closer to any part of the
FreeStyle and FreeStyle 5, including
cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance
P d 2 . 1
=
P d 2 . 1
=
= 80 MHz to 800 MHz
P d 2 . 1
=
= 800 MHz to 2,5 GHz
where P is the maximum output
power rating of the transmitter
in watts (W) according to the
transmitter manufacturer and d is the
recommended separation distance in
metres (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 FreeStyle and
FreeStyle 5 are used exceeds the applicable RF compliance level above, the FreeStyle and FreeStyle 5 should
be observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the FreeStyle and FreeStyle 5.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.