Ivoclar Vivadent Bluephase Style - Manual (Page 87)

87
Immunity test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
IEC 60601 test level
3 V
rms
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
Compliance level
10 V
10 V/m
Electromagnetic environment - guidance
Portable and mobile RF communications equipment should not be used closer to any
part of the Bluephase Style, including cables, than the recommended separation distance
caculated from the equation applicable to the frequency of the transmitter.
Recommended separation distance
d = 0.35 P
d = 0.35 P 80 MHz to 800 MHz
d = 0.70 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 meters
(m).
Field strengths from fixed RF transmitters, as determined by an electromagnetic site sur-
vey,
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:
Guidance and manufacturer‘s declaration - electromagnetic immunity
The Bluephase Style is intended for use in the electromagnetic environment specified below. The customer or the user of the Bluephase Style should
assure that it is used in such an environment.
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 predicted 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 Bluephase Style
is used exceeds the applicable RF compliance level above, the Bluephase Style should
be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the Bluephase Style.
b Over the frequency range 150 kHz to 80 MHz, field strength should be less than 10 V/m.
Recommended separation distances between portable and mobile RF communications
equipment and the “Bluephase Style”
The Bluephase Style is intended for use in the electromagnetic environment in which radiated RF disturbances are controlled. The customer or the
user of the Bluephase Style can help prevent electromagnetic interference by maintaining a miminum distance between portable and mobile RF
communications equipment (transmitters) and the Bluephase Style as recommended below, according to the maximum output power of the
communication equipment.
Rated
maximum out-
put power of
transmitter
W
0.01
0.1
1
10
100
150 kHz to
80 MHz
d = 0.4 P
0.04
0.13
0.40
1.3
4.0
Separation distance according to
frequency of transmitter
m
80 MHz to
800 MHz
d = 0.4 P
0.04
0.13
0.40
1.3
4.0
800 MHz to
2.5 GHz
d = 0.7 P
0.07
0.22
0.70
2.2
7.0
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in metres (m) can be determined using the equation applicable to
the frequency of the transmitter, where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency
range applies.
NOTE 4: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.