Brainlab CRANIAL/ENT OPTICAL - Page 55

RF Emissions Interferences
Softouch and Z-touch use RF energy only for its internal function. Therefore, the RF emissions
are very low and are not likely to cause any interference in nearby electronic equipment.
Softouch and Z-touch are suitable for use in all establishments other than domestic and those
directly connected to the public low-voltage power supply network that supplies buildings used for
domestic purposes.
Standards Emission Test Compliance
CISPR 11 RF emissions Group 1, Class B
IEC 61000-3-2 Harmonic emissions
N/A
IEC 61000-3-3 Voltage fluctuations/flicker emissions
NOTE: U
T
is the AC main power voltage prior to the application of the test level.
Separation Distances
Softouch and Z-touch are intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of Softouch or Z-touch can help
prevent electromagnetic interference.
This is accomplished by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and Softouch or Z-touch, according to the maximum
output power of the communications equipment.
Rated Maximum Output
Power of Transmitter (W)
Separation Distance According to Frequency of Transmitter
(m)
150 kHz to 800 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz
0.01 0.12 0.23
0.1 0.37 0.73
1 1.17 2.30
10 3.69 7.30
100 11.67 23.00
For transmitters rated at a maximum output power not listed above, d can be determined using
the provided equations.
P = maximum output power rating of the transmitter in watts (W)
d = recommended separation distance in metres (m)
b
POINTERS
Instrument User Guide Rev. 2.3 Cranial/ENT Optical 55