Notes; Electromagnetic Interference (Emi) - Permobil SmartDrive MX2+ User Manual

Notes

Figures and diagrams of the SmartDrive in this manual may vary slightly from your device.
If applicable, access to the Google Play Store to get the SmartDrive MX2+ [and any other] app on the PushTracker / E3 may
require the use of an existing Google account or creation of a new one. Separate policies, terms and conditions apply.
An electronic version of this User's Manual along with informational videos are available on our website
[www.permobil.com] for people with visual, reading or cognitive disabilities.
All product [including components] requirements, policies, terms and conditions, to include the contents of this and any
other provided manual / instruction / guide, are subject to change without prior notice. For current product instruction
and information refer to www.permobil.com.
The Serial Number of your SmartDrive is located on its underside. It is recommended that you save this User's Manual and
record the Serial Number below for future reference.
SmartDrive Serial Number:
Compatible Wearables:
The SmartDrive MX2+ application is compatible for use on select Apple Watch and Android
wearables. All SmartDrive MX2+ functions are equivalent on both platforms.
To set up SmartDrive with a compatible wearable other than PushTracker / E3, scan this QR
Code with your smartphone.

Electromagnetic Interference (EMI)

Electromagnetic Interference comes from radio wave sources . Examples of these sources are radio / TV station transmitters,
receivers, transceivers [send and receive signals], cell phones, walkie-talkies, etc . There are many sources of EMI in one's
daily environment, some that are avoidable and some that one might not even realize . Powered electronic devices, such as
the SmartDrive are susceptible to EMI, both strong and weak, from these types of transmitters, as well as from electrostatic
discharges (ESD) and conducted sources . These interferences can cause unintentional activation of the SmartDrive motor or
damage to its control system, potentially causing a safety hazard and leading to costly repairs .
Every power wheelchair or power assist device can resist EMI up to a certain level, also known as its "immunity level" . The
higher the immunity level, the less the device is at risk of interference . An immunity level of 20 V/m is understood to provide
sufficient protection from the sources encountered on a daily basis . The SmartDrive has been tested and found to be immune
to this minimum immunity level of 20 V/m . Though equipped to be sufficiently protected against EMI, any chair modifications or
accessory additions can effect its immunity . Parts from other suppliers have unknown EMI properties, and their interaction with
the SmartDrive is untested .
Electromagnetic energy becomes increasing more intense the closer to the source you become . Therefore, it is recommended
that the SmartDrive not be operated in close vicinity to sources of radio waves . There are three categories that EMI sources fall
under:
1 . Long Range Transceivers: These are sources of strong radio waves, including commercial radio and TV broadcast
antenna towers and amateur (HAM) radios .
2 . Medium Range Mobile Transceivers: These are sources of potentially strong radio waves, including two-way radios
used by emergency vehicles, tractor-trailers, and taxis .
3 . Handheld Transceivers: These are sources of relatively low strength waves but have the possibility of getting
very close to your wheelchair, including walkie-talkies, citizen band (CB) radios, cell phones, and other personal
communication devices .
The following are not likely to cause EMI problems: Cordless phones, MP3 / CD players, TV sets, and AM / FM radios .
EN - SmartDrive MX2+ User's Manual 5