Philips V200 - Manual (Page 159)

Chapter 12
Technical Specifications
REF 1057983 A Respironics V200 Ventilator Operator’s Manual 12-15
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 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.
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
recommended separation distance for transmitters in these frequency ranges.
c 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 ventilator is used exceeds the applicable RF compliance level
above, the ventilator should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or relocating the ventilator.
d Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 1 V/m.
Guidance and Manufacturer's Declaration - Electromagnetic Immunity
Table 12-28: EMC Declaration - Immunity