Focus 214760, Руководство пользователя

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7 Technical data
214760 rev 1 KaVo Dental GmbH 27
Guidance and manufacturer’s declaration – electromagnetic immunity
The unit is intended for use in the electromagnetic environment specified below. The customer
or the user of the unit should assure that it is used in such an environment.
Immunity
test IEC 60601 test
level Compliance
level Electromagnetic environment - guidance
Conducted
RF
IEC 61000-
4-6
Radiated
RF
IEC 61000-
4-3
3 Vrms
150 kHz to
80 MHz
3 V/m
80 MHz to
2.5 GHz
3 V
3 V/m Portable and mobile RF communications
equipment should be used no closer to any
part of the unit, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency
of the transmitter.
Recommended separation distance
d = 1.2 P
d = 1.2 P 80 MHz to 800 MHz
d = 2.3 P 800 MHz to 2.5 GHz
where
P is the maximum output power rating
of the transmitter in watts (W) according to the
transmitter manufacturer and
d is the
recommended separation distance in
metres (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
a
should be less than the compliance level in
each frequency range.
b
Interference may occur in the vicinity of
equipment marked with the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV
broadcast cannot be predicated theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be considered.
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 abnormal
performance is observed, additional measures may be necessary, such as reorienting of
relocating the unit.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.