Table 4: Recommended separation distances
Recommended separation distances between portable and mobile RF communications equipment
and UNIUM Devices
UNIUM Devices are intended for use in the electromagnetic environment in which radiated RF disturbances are
controlled. The customer or user of the UNIUM Devices can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and
the UNIUM Devices as recommended below, according to the maximum output power of the communication
equipment.
Rated maximum output
power of transmitter
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
d
= 0.35
P
80 MHz to 800 MHz
d
= 0.35
P
800 MHz to 6.2 GHz
d
= 0.7
P
0.01
4 mm
4 cm
7 cm
0.1
11 cm
11 cm
22 cm
1
35 cm
35 cm
70 cm
10
1.11 m
1.11 m
2.22 m
100
3.5 m
3.5 m
7 m
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.
■ Notes:
•
At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
•
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
•
An additional factor of 10 / 3 is used in calculating the recommended separation distance to decrease the likelihood
that mobile / portable communications equipment could cause interference if it is inadvertently brought into patient
areas.
UNIUM Devices have the following essential performances for EMC: No change of motor rotation direction, oscillation
angle not bigger than 360°. In case of degradation due to EMC disturbances a wrong direction of the motor or an oscil-
lation angle bigger than 360° could occur.
Electromagnetic Compatibility
50
Instruction for Use • UNIUM
™
