Dentsply Sirona DAC Universal Operating Instructions Manual page 37

Sirona Dental A/S
Operating Instructions DAC Universal
Interference immunity
tests
Conducted RF
interference
IEC 61000-4-6
Radiated RF interference
IEC 61000-4-3
66 15 574 D3472
D3472.201.20.01.02 03.2019
IEC 60601-1-2 test
level
3 V
eff
1
150 kHz to 80 MHz
3 V/m
1
80 MHz to 800 MHz
3 V/m
1
800 MHz to 2.5 GHz
1. The higher frequency range applies at 80 MHz and 800 MHz.
2. The field strengths of fixed transmitters, such as base stations of
radiotelephones and mobile agricultural radio broadcast services,
amateur radio stations, AM and FM radio broadcast and TV
broadcast cannot be predicted theoretically with accuracy. A site
survey is recommended to assess the electromagnetic environment
due to fixed RF transmitters. If the measured field strength in the
location in which the UNIT is used exceeds the applicable RF
compliance level above, the UNIT should be observed to verify
normal operation. If unusual performance characteristics are
observed, it may be necessary to take additional measures such as
reorientation or repositioning of the UNIT.
3. Over the frequency range 150kHz to 80 MHz, field strengths should
be less than 3 V/m.
Compliance level
3 V
eff
3 V
eff
3 V
eff
3 Product description
3.6 Electromagnetic compatibility
Electromagnetic environment -
guidelines
d= [1.2] √P
d= [1.2] √P
at 80 MHz to 800 MHz
d= [2.3] √P
at 800 MHz to 2.5 GHz
with P as the power rating of the
transmitter in watts (W) according to
the transmitter manufacturer's
specifications and d as
recommended safety distance in
meters (m).
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey
be less than the compliance level
each frequency range.
Interference is possible in the vicinity
of equipment bearing the following
graphic symbol.
2
should
3
in
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