Drive DeVilbiss Lightweight Powerstroll - Electromagnetic Compatibility (Emc)

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13. ELECTROMAGNETIC COMPATIBILITY (EMC)
Electromagnetic interference (EMI) tests have shown to produce adverse eects
on the performance and control of electrically powered mobility devices. EMI
can be produced from dierent sources, such as cellular phones, amateur radio
transmitters (HAM), microwave signals and emergency vehicle transceivers.
The EMI produced from hand-held radios are of special concern.
The EMI waves can cause unintentional movement of the Powerstroll, or damage
to the controller. Every electrically powered mobility device has a resistance to
EMI. The higher the resistance level the greater the protection. The intensity of
the interference can be measured in Volts per meter, V/m.
If the Powerstroll or any alternative equipment is found to be operating
abnormally, turn o the piece of equipment that is believed to be causing
the interference (if possible, as soon as it is safe) 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.
If the Powerstroll continues to operate abnormally, turn o at the mains supply
and contact Drive DeVilbiss Healthcare Ltd.
The warnings listed beow are recommended to prevent possible interference
with the control system of your Powerstroll. Your Powerstroll, with no
modifications, has an immunity level of 20 V/m. For specific emissions and
immunity information relating to the Powerstroll, contact Drive DeVilbiss
Healthcare Ltd. Report EMI incidents to Drive DeVilbiss Healthcare Ltd. using
the details provided in section 2.
Warning
• Do not operate hand-held transceivers or turn on personal
communication devices while the Powerstroll is powered
on. Avoid use adjacent to or stacked with other equipment
where possible. If adjacent use is necessary, the Powerstroll
should be observed to verify normal electrical operation in
the configuration in which it is to be used.
• Use of accessories and cables other than those specified
or provided by Drive DeVilbiss Healthcare Ltd. could result
in increased electromagnetic emissions or decreased
electromagnetic immunity of the Powerstroll and result in
improper operation or moving performance.
• Portable RF communications should be used no closer than
30 cm to any part of the Powerstroll (including its cables),
otherwise a degradation in performance could result.
• Avoid use around radio transmission systems, such as radio
or television stations.