Planmeca FIT CAD System User Manual page 187

Immunity test
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 EUT is used exceeds the applicable RF compliance level
above, the EUT should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orienting or relocating the EUT.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V / m.
Recommended Separation Distances Between Portable and Mobile RF Communications
Equipment and the Planmeca PlanScan scanner.
The Planmeca PlanScan scanner is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The user of the Planmeca PlanScan scanner can help
prevent electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the Planmeca PlanScan scanner as
recommended below, according to the maximum output power of the communications equipment.
Rated maximum output
power (W) of
transmitter
0.01
0.1
1
10
100
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 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation isaffected by
absorption and reflection from structures, objects, and people.
User's manual
IEC 60601 Test level
Separation distance (m) according to frequency of transmitter
150 kHz to 80 MHz
0.12
0.37
1.17
3.7
11.7
Compliance level
80 MHz to 800 MHz
0.12
0.37
1.17
3.7
11.7
Planmeca FIT CAD/CAM system
22 EMC information
Electromagnetic
environment -guidance
800 MHz to 2.5 GHz
0.23
0.74
2.23
7.37
23.3
179