activecare medical Spirit Owner's Manual

Contents

activecare medical Spirit Owner's Manual Manual pdf 15 page image

148. EMC statementsThis portion of the content will provide the user with basic information that describes theproblems with EMI, known sources of EMI, protective measures either to lessen thepossibility or exposure or to minimize the degree of exposure, and suggested action shouldunexpected or erratic movement occur.Caution: It is very important that you read this information regarding the possibleeffects of electromagnetic interference on your electric XX- 01 WHEELCHAIR.ELECTROMAGNETIC INTERFERENCE (EMI) FROM RADIO WAVESOURCESPowered vehicle may be susceptible to electromagnetic interference (EMI), which isinterfering electromagnetic energy (EM) emitted from sources such as radio stations, TVstations, amateur radio (HAM) transmitters, two-way radios, and cellular phones. Theinterference (from radio wave sources) can cause the powered vehicle to release its brakes,move by itself, or move in unintended directions. It can also permanently damage thepowered vehicle’s control system. The intensity of the interfering EM energy can bemeasured in volts per meter (V/m). Each powered vehicle can resist EMI up to a certainintensity. This is called its “immunity level”. The higher the immunity level the greater theprotection. At this time, current technology is capable of achieving at least a 20 V/mimmunity level, which would provide useful protection from the more common sources ofradiated EMI. This powered vehicle model as shipped, with no further modification, has animmunity level of 20 V/m without any accessories.There are a number of sources of relatively intense electromagnetic fields in the everydayenvironment. Some of these sources are obvious and easy to avoid. Others are not apparentand exposure is unavoidable. However, we believe that by following the warning listedbelow, your risk to EMI will be minimized.