65 71 165 D3639
D3639
.
201.01.04
.
02 10.2017
25
Dentsply Sirona
3 Product description
Operating Instructions CEREC SpeedFire
3.5 Electromagnetic compatibility
båÖäáëÜ
3.5.2
Interference immunity
The UNIT is intended for operation in the electromagnetic environment
specified below.
The customer or user of the UNIT should make sure that it is used in such
an environment.
Interference
immunity tests
IEC 60601-1-2 Test level
Compliance level
Electromagnetic environment -
guidelines
Electrostatic
discharge (ESD)
according to IEC
61000-4-2
± 4 kV contact
± 8 kV air
± 4 kV contact
± 8 kV air
Floors should be wood, concrete, or
ceramic tile. If the floor is covered with
synthetic material, the relative
humidity must be at least 30%.
Electrical fast
transient/burst
according to
IEC 61000-4-4
± 0.5 kV for input and
output lines
± 1 kV for power supply
lines
± 0.5 kV for input and
output lines
± 1 kV for power supply
lines
The quality of the line power supply
should be that of a typical commercial
or hospital environment.
Surge voltages
according to IEC
61000-4-5
± 0.5kV differential mode
voltage
± 1 kV common mode
voltage
± 0.5kV differential
mode voltage
± 1 kV common mode
voltage
The quality of the line power supply
should be that of a typical commercial
or hospital environment.
Voltage dips,
short interruptions
and variations of the
power supply
according to
IEC 61000-4-11
0% U
T
for ½ period (100%
dip of U
T
)
0% U
T
for ½ period
(100% dip of U
T
)
The quality of the line power supply
should be that of a typical commercial
or hospital environment.
Conducted RF
interference
IEC 61000-4-6
1 V
eff
150 kHz to 80 MHz
1 V
eff
d= [1.2]
√
P
Radiated RF
interference
IEC 61000-4-3
3V/m
80MHz to 1GHz
3V/m
1.4GHz to 2.0GHz
1V/m 1.4GHz to 2.7GHz
3 V/m
3 V/m
1 V/m
d= [1.2]
√
P
at 80MHz to 1GHz
d= [2.3]
√
P
at 1.4GHz to 2.7GHz
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
1
should
be less than the compliance level
2
in
each frequency range.
Interference is possible in the vicinity
of equipment bearing the following
graphic symbol.
