Planmeca ProMax 3D Max with ProTouch Technical Manual page 38

1 General and technical data
Immunity test
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 Planmeca ProMax X-ray unit is used exceeds the applicable RF
compliance level above, Planmeca ProMax X-ray unit should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as
re-orienting or relocating Planmeca ProMax X-ray unit.
b
) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile RF
communications equipment and Planmeca ProMax X-ray unit
Rated maximum output
power of transmitter
W
0.01
0.1
1
10
100
32 Planmeca ProMax 3D Max
IEC 60601 test Compliance level
level
NOTE
At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE
These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures, objects
and people.
The Planmeca ProMax X-ray unit is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The customer
or the user of Planmeca ProMax X-ray unit can help prevent electromagnetic
interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the Planmeca
ProMax X-ray unit as recommended below, according to the maximum
output power of the communications equipment.
Separation distance according to frequency of transmitter
m
150 kHz to 80 MHz
d= 1.2 √P
0.12
0.38
1.2
3.8
12
For transmitters rated at a maximum output power not listed above, the
recommended separation distance d in meters (m) can be estimated 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
At 80 MHz and 800 Mhz, the separation distance for the higher frequency
range applies.
Electromagnetic environment -
guidance
80 MHz to 800 MHz
d= 1.2 √P
0.12
0.38
1.2
3.8
12
800 MHz to 2.5 GHz
d = 2.3 √P
0.23
0.73
2.3
7.3
23
Technical manual