7
T204
The Ratiomed AC 20/AC 30 is intended for use in the electromagnetic environment specified below. The customer or user of
the Ratiomed AC 20/AC 30 should ensure that it is used in such an environment.
Immunity Test
IEC 60601-
Test Level
Compliance Level
Electromagnetic Environment - Guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Veff
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
3 Veff
3 V/m
Portable and mobile communications equipment
should be separated from the Ratiomed AC 20/AC 30
incl. the cables by no less than the distances
calculated/listed below.
Recommended distances:
d=
1,2
√
P
d=
1,2
√
P for 80 MHz to 800 MHz
d=
2,3
√
P for 800 MHz to 2.5 GHz
where P is the max. power in watts (W) and d is the
recommended separation distance in meters (m).
Field strengths from fixed transmitters, as determined
by an electromagnetic site
a
survey, should be less than
the compliance level
b
.
Interference may occur in the vicinity of equipment containing
following symbol.
NOTE 1 With 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2 These guidelines may not be applicable in all cases. The propagation of electromagnetic sizes is influenced
by absorptions and reflections of buildings, objects and people.
a The field strength of stationary transmitters, such as base stations of cellular phones and mobile terrain radio equipment, amateur radio
transmitters, cbm broadcast and TV stations cannot be predestined exactly.
To determine the electromagnetic environment in regard to stationary transmitters, a study of the location is to be considered. If
the measured field strength at the location where the Ratiomed AC 20/AC 30 is used exceeds the above compliance level, the
Ratiomed AC 20/AC 30 is to be observed to verify the intended use. If abnormal performance characteristics are noted, additional measures
might be necessary, e.g. a changed arrangement or another location for the Ratiomed AC 20/AC 30.
b Within the frequency range of 150 kHz to 80 MHz the field strength is to be below 3 V/m.
