Weinmann MEDUMAT Standard2, Instructions For Use Manual

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MEDUMAT Standard
2
EN 255
14 Appendix
Note 1: The higher frequency range applies at 80 MHz and 800 MHz.
Note 2: These guidelines may not be applicable in all cases. The size of electromagnetic fields depends
on the extent to which they are absorbed and reflected by buildings, objects and persons.
a
The ISM frequency bands (for industrial, scientific, and medical applications) between 150 kHZ and
80 Mhz are: 6.765 MHz to 6.795 MHz; 13.553 MHz to 13.567 MHz; 26.957 MHz to 27.283 MHz;
and 40.66 MHz to 40.70 MHz.
The amateur radio bands between 0.15 MHz and 80 MHz are: 1.8 MHz to 2.0 MHz, 3.5 MHz to 4.0 MHz,
5.3 MHz to 5.4 MHz, 7 MHz to 7.3 MHz, 10.1 MHz to 10.15 MHz, 14 MHz to 14.2 MHz, 18.07 MHz to
18.17 MHz, 21.0 MHz to 21.4 MHz, 24.89 MHz to 24.99 MHz, 28.0 MHz to 29.7 MHz and 50.0 MHz
to 54.0 MHz.
b
The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency
range from 80 MHz to 2.7 GHz are intended to reduce the likelihood of portable/mobile communication
systems causing interference if brought into the PATIENT area unintentionally. For this reason, the
additional factor of 10/3 is applied when calculating the recommended separation distances in these
frequency ranges.
c
Field strengths of fixed transmitters, such as base stations for radio (cellular/cordless) telephones and
land mobile radios, amateur radio, AM and FM radio channels, and TV broadcasters cannot be predicted
accurately in theory. A survey of the site should be performed to determine the electromagnetic
environment with regard to the fixed transmitters. If the field strength measured at the site where
MEDUMAT Standard
2
is used exceeds the upper compliance level, MEDUMAT Standard
2
should be
monitored to ensure it is functioning as intended. If unusual performance characteristics are noted,
additional measures may prove necessary such as changing the orientation or moving
MEDUMAT Standard
2
to another site.
d
The field strength should be lower than 3 V/m for the frequency range from 150 kHz to 80 MHz.