Posey Bed 8070 - Manual (Page 25)

Posey Bed - 8070 25

Table 204
Guidance and manufacturer’s declaration – electromagnetic immunity
The Posey Bed 8070 is intended for use in the electromagnetic environment specified below. The
customer or the user of the Posey Bed 8070 should assure that it is used in such an environment.
Immunity Test IEC 60601 Compliance Level Electromagnetic Environment –
Test Level Guidance
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 Posey Bed 8070 is used
exceeds the applicable RF compliance level above, the Posey Bed 8070 should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or
relocating the Posey Bed 8070.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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
Posey Bed 8070, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation distance
d = [3.5/V1]√P
d = [3.5/E1]√P 80 MHz to 800 MHz
d = [7/E1]√P 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:
Guidance and Manufacturer’s Declaration