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14. ELECTROMAGNETIC COMPATIBILITY (EMC)
The Artemis control unit has been designed to meet the EMC requirements of IEC
60601-1-2: 2007 however it may still be affected by or emit harmful radio frequency
(RF) energy. The RF emissions from the mattress control unit are very low and
are not likely to cause any interference to nearby electronic equipment, however
interference to sensitive equipment is still possible. Likewise if the immunity limits of
the control unit are exceeded the system may be seen to operate abnormally.
Interference can be received from fixed transmitters (e.g. commercial radio and
television towers) and portable / mobile RF communications equipment (e.g. mobile
phones). Due to the increasing number of mobile phones and other wireless devices
the possibilities of interference to the control unit and other surrounding equipment
results in the need for special precautions to be taken regarding EMC. The Artemis is
to be installed and put into service according to the information provided within this
section to ensure continued and reliable operation.
Wireless communications equipment such as wireless network devices, mobile
phones, cordless telephones including their base stations and walkie-talkies could
all affect the electrical operation of the control unit - separation distances must be
considered.
If the control unit or any alternative equipment is found to be operating abnormally
turn off the piece of equipment that is believed to be causing the interference (if
possible) to identify the source of the RF energy. Once identified mitigation measures
are to be taken, such as the separation distances being increased and/or the device(s)
being re-orientated. As an example a mobile phone typically has a recommended
separation distance of at least 3.3m from the control unit.
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