What Effect Can Emi Have; C.sources Of Emi; D.distance From The Source; Immunity Level - Quickie Xplore 2 Hybrid Owner's Manual

B. WHAT EFFECT CAN EMI HAVE?
1. EMI can cause your chair, without warning, to:
• Release its brakes
• Move by itself
• Move in unintended directions
If any of these occurs, it could result in severe injury to you or
others.
2. EMI can damage the control system of your chair. This could
create a safety hazard, and lead to costly repairs.
C. SOURCES OF EMI
The sources of EMI fall into three broad types:
1. Hand-Held Transceivers:
The antenna is usually mounted directly on the unit. These
include:
• Citizens band (CB) radios
• "Walkie-talkies"
• Security, fire and police radios
• Cellular phones
• Lap-top computers with phone or fax
• Other personal communication devices
Q-NOTE- These devices can transmit signals while they are
on, even if not in use.
2. Medium-Range Mobile Transceivers:
These include two-way radios used in police cars, fire trucks,
ambulances and taxi cabs. The antenna is usually mounted on
the outside of the vehicle.
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:
Laptop computers (without phone or fax), Cordless phones, TV
sets or AM/FM radios, CD or tape players.

D.DISTANCE FROM THE SOURCE

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
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.
Quickie Xplore 2 Owner's Manual
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3. The configuration tested and found to be immune to at least 20
V/m is: Quickie Xperience power wheelchair with a righthand
mounted P & G remote joystick system, 18" seat width, 18"
seat depth, dual post height adjustable armrests, fixed 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 Quickie Xperience and P & G control system:
• Breath Control
• Proportional Head
Control • Wafer Board
• Tri-Switch Head Array
• Proportional Mini-Joystick/Chin
Control
• Heavy Duty Switched Joystick
• Buddy Button
• Treadle Switch
• Micro Light
• Ribbon Switch
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.
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
F. REPORT ALL SUSPECTED EMI INCIDENTS
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) 263-3390

G.EMI FROM CHAIR

The chair itself can disturb the performance of electromagnetic
fields such as emitted by alarm systems of shops.
Rev. A
• Star Board
• Proximity Head Array
• Zero Touch Switch
• Penta Switch
• 4-Zero Touch Switch
• Plate Switch
• 5-Zero Touch Switch
• Soft Switch
• Disc Switch
• Grasp Switch
• Wobble Switch
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