DeVilbiss SleepCube DV57 Manual page 18

Immunity Test IEC 60601 Test Level
Radiated RF 3 V/m
IEC 61000-4-3 80 MHz to 2.5 GHz
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.
Recommended Separation Distances Between Portable and Mobile RF
Communications Equipment and this device. This device and system are NOT
Life-Supporting
This device is intended for use in the electromagnetic environment in which radiated disturbances are controlled. The
customer or user of this device can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF Communications Equipment and the device as recommended below, according to the
maximum output power of the communications equipment.
Maximum Output
Power (Watts)
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.
EN - 18
Recommended Separation Distances for the device (meters)
150 kHz to 80 MHz
D=(1.2)√ P
0.12
0.38
1.20
3.79
12.00
Compliance Level
E1 = 3V/m
80 to 800MHz
D=(1.2)√ P
0.12
0.38
1.20
3.79
12.00
Electromagnetic Environment - Guidance
D=(1.2)√ P 80 to 800 MHz
D=(2.3)√ P 800 MHz to 2.5 GHz
Where P is the maximum power rating in
watts, and D is the recommended separation
distance in meters.
Field strengths from fixed transmitters, as
determined by an electromagnetic site survey,
should be less than the compliance levels (V1
and E1).
Interference may occur in the vicinity of
equipment marked with the following symbol:
800 MHz to 2.5 GHz
D=(2.3)√ P
0.23
0.73
2.30
7.27
23.00
SE-DV57-1