930476 Rev. E
6
P-222
V. EMI (ELECTROMAGNETIC INTERFERENCE)
F. REPORT ALL SUSPECTED EMI INCIDENTS
WARNING
You should promptly report any unintended movement
or brake release. Be sure to indicate whether there was
a radio wave source near your chair at the time.
Contact:
Sunrise Medical, Customer Service Department at
(800) 333-4000.
G. EMI FROM CHAIR
WARNING
The chair itself can disturb the performance of electro-
magnetic fields such as emitted by alarm systems of shops.
3. Long-Range Transceivers:
These include commercial radio and TV broadcast antenna towers
and amateur (HAM) radios. Note– The following are not likely to
cause EMI problems: Lap-top computers (without phone or fax),
Cordless phones, TV sets or AM/FM radios, CD or tape players.
D.DISTANCE FROM THE SOURCE
WARNING
EM energy rapidly becomes more intense as you get closer to the
source. For this reason, EMI from hand-held devices is of special
concern. (See C.1 above) A person using one of these devices can
bring high levels of EM energy very close to your chair without you
knowing it.
E. IMMUNITY LEVEL
WARNING
1. The level of EM is measured in volts per meter (V/m). Every
power wheelchair can resist EMI up to a certain level. This is
called its “immunity level”.
2. The higher the immunity level, the less the risk of EMI. It is
believed that a 20 V/m immunity level will protect the power
wheelchair user from the more common sources of radio
waves.
3. The configuration tested and found to be immune to at least
20 V/m is: Quickie P-222 SE power wheelchair with a right-
hand mounted RNET remote joystick system, 18" seat width,
18" seat depth, dual post height adjustable armrests, swing-
away tapered legrests with one piece solid footplate, and Gp
24 gel cell batteries.
4. The following specialty input devices have an unknown effect on
the immunity level because they have not been tested with the
P-222 SE and RNET control system:
WARNING
Individuals with physical limitations requiring the use of
a specialty control input device known not to be
immune to 20V/m, or not known, should exercise extra
care around known sources of EMI.
WARNING
There is no way to know the effect on EMI if you add
accessories or modify this chair. Any change to your
chair may increase the risk of EMI. Parts not specifically
tested or parts from other suppliers have unknown EMI
properties.
• Breath Control
• Heavy Duty Switched
Joystick
• Proportional Head
Control
• Wafer Board
• Tri-Switch Head Array
• Proportional Mini-
Joystick/Chin Control
• Proximity Head Array
• Zero Touch Switch
• 4-Zero Touch Switch
• 5-Zero Touch Switch
• Treadle Switch
• Ribbon Switch
• Disc Switch
• Buddy Button
• Micro Light
• Star Board
• Penta Switch
• Plate Switch
• Soft Switch
• Grasp Switch
• Wobble Switch
