Philips V200 - Manual (Page 160)

Chapter 12
12-16 Respironics V200 Ventilator Operator’s Manual REF 1057983 A
Technical Specifications
Table 12-29: EMC Declaration - Recommended Distances
Recommended Separation Distances Between
Portable and Mobile RF Communications Equipment and the Respironics V200 Ventilator
The ventilator is intended for use in an electromagnetic environment in which radiated RF disturbances
are controlled. The user of the ventilator can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment (transmitters) and the
ventilator as recommended below, according to the maximum output power of the communications
equipment
Separation Distance According to Frequency of Transmitter
(Meters)
Rated
Maximum
Output
Power of
Transmitter
(Watts)
150 kHz to 80
MHz Outside ISM
Bands
150 kHz to 80 MHz
in ISM Bands
80 MHz to 800 MHz 800 MHz to 2.5 GHz
0.01 0.12 0.12 0.12 0.23
0.1 0.38 0.38 0.38 0.74
1 1.20 1.20 1.20 2.30
10 3.80 3.80 3.79 7.40
100 12.00 12.00 12.00 23.00
For transmitters rated at a maximum output power not listed above, the recommended separation
distance d in meters (m) can be determined using the equation applicable to the frequency of the
transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the
transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 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 3 An additional factor of 10/3 is used in calculating the recommended separation distance for
transmitters in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency
range 80 MHz to 2.5 GHz to decrease the likelihood that mobile/portable communications
equipment could cause interference if it is inadvertently brought into patient areas.
NOTE 4 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
d
12
V
2
------ P = d
12
E
1
------ P = d
23
E
1
------ P =