ResMed Tango C Serie Guia Del Usuario página 13

Guidance and manufacturer's declaration—electromagnetic immunity
The C-Series Tango system is intended for use in the electromagnetic environment specified below. The
customer or the user of the C-Series Tango system should assure that the device is used in such an environment.
Immunity test IEC60601-1-2
test level
Conducted RF 3 Vrms
IEC 6000--6 50 kHz to 80 MHz
Radiated RF 0 V/m
IEC 6000--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.
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land
a
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 C-Series Tango system
is used exceeds the applicable RF compliance level above, the C-Series Tango system should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the C-Series Tango system.
Over the frequency range 50 kHz to 80 MHz, field strengths should be less than 0 V/m.
b
Compliance level Electromagnetic environment—guidance
Portable and mobile RF communications
equipment should be used no closer to any
part of the C-Series Tango system, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
3 Vrms d = .7 √P
0 V/m d = 0.35 √P 80 MHz to 800 MHz
d = 0.70 √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 meters
(m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey,
level in each frequency range.
Interference may occur in the vicinity of
equipment marked with the following
symbol:

should be less than the compliance
a
b