Sirona Dental Systems GmbH
3 Electromagnetic compatibility
Installation Requirements C5
+
, C5
+
Turn
60 27 978 D3415
D3415.021.03.08.02
37
båÖäáëÜ
Portable and mobile radio equipment
must not be used within the recom-
mended working clearance from the
UNIT
and its cables, which is calcu-
lated based on the equation suitable
for the relevant transmission fre-
quency.
Recommended working clearance:
Conducted HF inter-
ference
IEC 61000-4-6
3V
eff
150
kHz to 80 MHz
a
3V
eff
Radiated HF interfer-
ence
IEC 61000-4-3
3V/m
80MHz to 800MHz
a
3V/m
800MHz to 2.5GHz
a
3V
eff
3V
eff
where
P
is the nominal transmitter
output in watts (W) specified by the
transmitter manufacturer and
d
is the
recommended working clearance in
meters (m).
The field strength of stationary radio
transmitters is based on a local inves-
tigation for all frequencies
b
less than
the conformance level for all frequen-
cies
c
.
Interference is possible in the vicinity
of equipment bearing the following
graphic symbol.
a.
The higher frequency range applies at 80MHz and 800MHz.
b.
The field strength of stationary transmitters such as the base stations of radio telephones and land mobile services,
amateur radio stations as well as AM and FM radio and television broadcasting stations cannot be accurately predeter-
mined. An investigation of the location is recommended to determine the electromagnetic environment resulting from
stationary HF transmitters. If the field strength measured at the
UNIT
location exceeds the conformance level specified
above, the
UNIT
must be observed with respect to its normal operation at each application site. If unusual performance
characteristics are observed, it may be necessary to take additional measures such as reorientation or repositioning of
the
UNIT
.
c.
A frequency range of 150kHz to 80MHz results in a field strength of less than 3V/m.
Immunity interfer-
ence tests
IEC 60601-1-2 test level
Conformance level
Electromagnetic environment
guidelines
d
1 2
,
[
]
P
=
d
1 2
,
[
]
P
=
at 80MHz to 800MHz
d
2 3
,
[
]
P
=
at 800MHz to 2.5GHz
