Invacare SoftCloud Ace User Manual page 19

Immunity test IEC 60601 test level
3 V
Conducted RF
150 kHz to 80 MHz
IEC 61000-4-6
Radiated RF
3 V/m
IEC 61000-4-3
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.
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 mattress system is used exceeds the applicable RF compliance level above, the mattress system should be observed
to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating
the mattress system.
b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile RF communications equipment and the mattress system Alternating
Control Unit
The mattress system is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer
or the user of the mattress system can help prevent electromagnetic interference by maintaining a minimum distance between portable
and mobile RF communications equipment (transmitters) and the mattress system as recommended below, according to the maximum
output power of the communications equipment.
Rated maximum output power
of transmitter (W)
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be
estimated 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: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
1630732-C
Compliance level
3 V
rms
3 V/m
Separation distance according to frequency of transmitter (m)
150 kHz to 80 MHz
d = 1.167√P
0.117
0.369
1.167
3.689
11.667
Electromagnetic environment – guidance
Portable and mobile RF communications equipment
rms
should be used no closer to any part of the CT515,
including cables, than the recommended separation
distance calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance:
d = 1.167√P
d = 1.167√P 80 MHz to 800 MHz
d = 2.333√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
should be less than the compliance level in each
frequency range
Interference may occur in the vicinity of equipment
marked with the following symbol:
80 MHz to 800 MHz
d = 1.167√P
0.117
0.369
1.167
3.689
11.667
Technical Data
b) .
800 MHz to 2.5 GHz
d = 2.333√P
0.233
0.738
2.333
7.379
23.333
a) ,
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