Recommended Separation Distance - Beurer FT 55 Mode D'emploi

Table 2
For all ME EQUIPMENT and ME SYSTEMS
Guidance and manufacturer's declaration – electromagnetic immunity
The FT55 series is intended for use in the electromagnetic environment specified below. The customer or the user of the FT55 series should
assure that it is used in such an environment.
IMMUNITY IEC 60601
test test level
Conducted RF 3 Vrms
IEC 61000-4-6 150 kHz to
80 MHz
Radiated RF 3 V/m
IEC 61000-4-3 80 MHz to
2.5 GHz
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 FT55 is used
exceeds the applicable RF compliance level above, the FT55 should be observed to verify normal operation. If abnormal performance is obser-
ved, additional measures may be necessary, such as re-orienting or relocating the FT55 .
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Compli- Electromagnetic environment – guidance
ance level
Portable and mobile RF communications equipment should be used no closer to any part of the
FT55 series, including cables, than the recommended separation distance calculated from the
equation applicable to the frequency of the transmitter.

Recommended separation distance:

Not appli-
d = 1.2
cable
d = 1.2 80 MHz to 800 MHz
d = 2.3 800 MHz to 2.5 GHz
3 V/m
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 meters (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:
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