63 74 198 D3545
74
D3545
.
201.06.03
.
02 05.2014
Electromagnetic compatibility
Sirona Dental Systems GmbH
Working clearances
Operating Instructions SIROLaser Advance
9.3
Working clearances
Recommended working clearances
between portable and mobile RF
communication devices and the UNIT
The UNIT is intended for operation in an electromagnetic environment
where radiated HF interference is checked. The customer or the user of
the UNIT can help prevent electromagnetic interference by duly
observing the minimum distances between portable and/or mobile RF
communication devices (transmitters) and the UNIT. These values may
vary according to the output power of the relevant communication device
as specified below.
For transmitters whose maximum nominal output is not specified in the
above table, the recommended working clearance
d
in meters (m) can be
determined using the equation in the corresponding column, where
P
is
the maximum nominal output of the transmitter in watts (W) specified by
the transmitter manufacturer.
empty
Remark 1
The higher frequency range applies at 80 MHz and 800 MHz.
empty
Remark 2
These guidelines may not be applicable in all cases. The propagation of
electromagnetic waves is influenced by their absorption and reflection by
buildings, objects and persons.
Rated maximum output power of
transmitter
[W]
Working clearance according to transmission frequency [m]
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2.5 GHz
d= [1.2]
√
P
d= [1.2]
√
P
d= [2.3]
√
P
0,01
0,12
0,12
0,23
0,1
0,38
0,38
0,73
1
1,2
1,2
2,3
10
3,8
3,8
7,3
100
12
12
23
