Bowa ARC 100 - Page 49

13 EMC
900-100_IFU-V1.0_11587-S0-20141209-EN ARC 100 Operating Manual 49
Electromagnetic immunity (IEC 60601-1-2, Table 204)
The ARC 100 is intended for operation in the electromagnetic environment described below. The customer or user
of the ARC 100 should ensure that it is operated in such an environment.
Tests for resistance to
interference
IEC 60601 test
level
Conformity level
Electromagnetic environment guidelines
Conducted HF interference
as per IEC 61000-4-6
3 V rms
150 kHz to
80 MHz
3 V
Portable and mobile wireless devices should
not be used within the recommended
protective working clearance from the ARC
100 and its cables, which is calculated using
the equation corresponding to the relevant
transmission frequency.
Recommended protective distance:
d = 0.35 × √P
d = 0.35 × √P for 80 MHz to 800 GHz
d = 0.7 × √P for 800 MHz to 2.5 GHz
where P is the nominal transmitter output in
watts (W) specified by the transmitter
manufacturer and d is the recommended
protective distance in meters (m).
The field strength of stationary transmitters
as determined by on-site measurements
a
should be lower than the compliance level
b
at
all frequencies.
Interference is possible in the vicinity of
devices that bear the following symbol.
Radiated HF interference
as per IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
3 V/m
Note 1
The higher frequency range applies in case of 80 MHz and 800 MHz.
Note 2
These guidelines may not be applicable in all cases. The propagation of electromagnetic waves
is influenced by their absorption and reflection by buildings, objects and people.
a
Field strengths from stationary transmitters such as base stations for wireless telephones and
land mobile radios, amateur radio, AM and FM radio broadcasting and TV broadcasting cannot
be predicted theoretically with accuracy. A study of the electromagnetic phenomena at the
location should be done to determine the electromagnetic environment resulting from stationary
transmitters. If the measured field strength at the location where the ARC 100 is being used
exceeds the aforementioned compliance level, the ARC 100 should be monitored to verify that it
is functioning properly. If unusual performance characteristics are observed, additional measures
may be necessary, such as repositioning or relocation of the ARC 100.
b
The field strength should be lower than 10 V/m over the frequency range of 150 kHz to 80 MHz.