Recommended Separation Distance - Sotera VISI User Manual

Compliances

10.6.5 Recommended Separation Distance

The ViSi Mobile Monitor may be temporarily interrupted by UHF RFID
Systems (860-960MHz).
2-way radios may cause waveform distortion when placed within 1 foot of
the ViSi Mobile Monitor.
Some brands of television may cause temporary waveform distortion and
data loss when placed within 6 feet of the ViSi Mobile Monitor.
Portable and mobile RF communications equipment should be used no closer to any part of the ViSi
Mobile Monitor, including cables, than the recommended separation distance calculated from the equation
appropriate for the frequency of the transmitter.
Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey, should be less
than the compliance level in each frequency range.
Interference may occur in the vicinity of equipment marked with this symbol:
In the following table, 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).
IEC 60601-1-2
Immunity Test
Test Level
Conducted RF 3 V
RMS
IEC 61000-4-6
150 kHz to 80 MHz
Radiated RF 3 V/m
IEC 61000-4-3 80 MHz to 2.5 GHz
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 access 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 ViSi Mobile Monitor is used exceeds the applicable RF compliance level above, the Monitor should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating the Monitor.
194
ViSi Mobile Monitoring
System Compliance Level
3 V
RMS
3 V/m
Electromagnetic Environment
Guidance
Recommended separation distance:
d = 1.2P
Recommended separation distance:
80 MHz to 800 MHz
80 MHz to 800 MHz
d = 3.5P
800 MHz to 2.5 GHz
d = 2.3P
2.0 to 2.3 GHz for short radio
d = 7.0P