UPnRIDE Powered Wheelchair User Guide
Page 80 of 90
Document Version: UM-01-01_Rev B5
Radio wave sources, such as radio stations, TV stations, amateur radio (HAM) transmitters, two-way
radios, and cellular phones, can affect powered wheelchairs.
Following the warnings listed below should reduce the chance of unintended brake release or
powered wheelchair movement which could result in serious injury:
Make sure that the electromagnetic fields (for example from mobile telephones) in the area
where you will operate the wheelchair will not affect the electronics of the wheelchair.
Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming close to
them; if unintended movement or brake release occurs, turn
The powered wheelchair OFF as soon as it is safe.
Be aware that adding accessories or components, or modifying the UPnRIDE wheelchair, may
make it more susceptible to interference from radio wave sources (Note: There is no easy way to
evaluate their effect on the overall immunity of the powered wheelchair).
Report all incidents of unintended movement or brake release to the powered wheelchair
manufacturer, and note whether there is a radio wave source nearby.
Important Information
20 volts per meter (V/m) is a generally achievable and useful immunity level against interference
from radio wave sources.
This product has an immunity level of 20 volts per meter (V/m) when tested with all the device's
components.
System Limitation
When on a slope steeper than 7° while in the upright position, the wheelchair automatically slows
down. This is independent of the auto-balancing system.
