Equipment And The Fabius Tiro - Dräger Medical Fabius Tiro Technical & Service Manual

Fabius Tiro
5 Recommended sep-
aration distances
between portable
and mobile RF com-
munications equip-
ment and the Fabius
Tiro
Dräger Medical Systems, Inc.
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Electromagnetic Testing and Compliance
NOTE
These guidelines may not apply in all situations. Electromagnetic propaga-
tion is affected by absorption and reflection from structures, objects, and
people.
NOTE A
The ISM (industrial, scientific, and medical) bands between 150 kHz and
80 MHz are 6.765 MHz to 6.795 MHz; 13.553 MHz to 13.567 MHz;
26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz.
NOTE B
The compliance levels in the ISM frequency bands between 150 kHz and
80 MHz and in the frequency range 80 MHz to 2.5 GHz are intended to
decrease the likelihood that mobile/portable communications equipment
could cause interference if it is inadvertently brought into patient areas. For
this reason, an additional factor of 10/3 is used in calculating the recom-
mended separation distance for transmitters in these frequency ranges.
NOTE C
Field strengths from fixed transmitters, such as base stations for radio (cel-
lular/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 Fabius Tiro is used
exceeds the applicable RF compliance level above, the Fabius Tiro should
be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or
relocating the Fabius Tiro.
NOTE D
Over the frequency range 150 kHz to 80 MHz, field strengths should be
less than 1 V/m.
The Fabius Tiro is intended for use in an electromagnetic environment in
which radiated RF disturbances are controlled. The customer or the user of
the Fabius Tiro can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile RF communications equip-
ment (transmitters) and the Fabius Tiro as recommended below, according to
the maximum output power of the communications equipment.
Table 4 Distance Recommendations between RF Communications
6020.002 Revision B Released
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