Accordance With En 60601-1-2 - Durr Dental VistaScan Mini Notice De Montage Et D'utilisation

Appendix
Electromagnetic interference immunity for devices or systems that are not life-sustaining
Portable and mobile communication devices should not be used any closer to the unit (including ca-
bles) than the recommended safety distance, which is calculated based on the applicable formula for
the transmission frequency�
Interference im-
munity tests
Conducted HF
disturbance varia-
bles in accord-
ance with
IEC 61000-4-6
Emitted HF distur-
EN
bance variables in
accordance with
IEC 61000-4-3
P Rated power of the transmitter in Watts (W) in accordance with the specifications of the
transmitter manufacturer
d Recommended safety distance in metres (m)
The field strength of stationary communication devices should be lower than the compli-
ance level for all frequencies based on inspections on site
Interference is possible in the environment of units that have the following symbols�
Comment 1
Comment 2
The field strength of stationary transmitters, such as the base stations of mobile phones and land
a
mobile radios, amateur radio stations, AM and FM radio and television broadcasters, for example,
cannot be accurately predicted� In order to determine the electromagnetic environment with regard to
stationary transmitters, a study of electromagnetic phenomena at the site should be considered� If the
measured field strength at the location where the unit is used exceeds the compliance levels stated
above, the unit should be monitored to verify that it works as intended� If unusual performance char-
acteristics are observed additional measures may be required, such as a changing the orientation of
the unit or moving it to a different location�
Over the frequency range of 150 kHz to 80 MHz, the field strength should be less than [V
b
44
EN C 60601 – Compliance
test level level
3 V 150 kHz to [V
eff
80 MHz
3 V/m 80 MHz to [E
2�5 GHz
The higher frequency range applies for 80 MHz and 800 MHz�
These guidelines may not apply in all cases� The propagation of electromagnetic
radiation is affected by absorption and reflection on the building, objects and
people�
Recommended safety distance
d = 1�2 ⋅ √P
] = 3 V
1
] = 4 V/m d = 0�9 ⋅ √P for 80 MHz to 800 MHz
1
d = 1�8 ⋅ √P for 800 MHz to 2�5 GHz
�
a b
2141100009L30 1612V001
] V/m�
1