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and your power scooter may not be able to operate. In ex
treme high temperatures, it may operate at slower speeds
due to a safety feature of the controller that prevents dam
age to the motors and other electrical components.
• The scooter can generally be operated at outside tempera
tures from 10°to +45°C.
• Some parts of the scooter tend to be temperature depend
ent. The controller works best at temperatures between
25°C and 45°C.
• Below 15°C the batteries can freeze and the scooter may
not work.
• At extremely high temperatures > 45°C, the safety function
of the control, which prevents damage to the motors and
other electrical components, can lead to slower maximum
speeds.
Electromagnetic interference (EMI)
The rapid development of electronics, especially in the area
of communications, has saturated our environment with
electromagnetic (EMI) radio waves that are emitted by televi
sion, radio and communication signals. These EMI wave are
invisible and their strength increases as one approach the
source. All electrical conductors act as antennas to the EMI
signals and, to varying degrees, all power scooters and scoot
ers are susceptible to electromagnetic interference (EMI).
The interference could result in abnormal, unintentional
movement and/or erratic control of the vehicle. The United
States Food and drug Administration (FDA) suggests that the
following statement be incorporated to the user’s manual for
all power scooter like the Tube. Power scooters may as sus
ceptible to electromagnetic interference (EMI), which is inter
fering electromagnetic energy emitted from sources such as
radio stations, TV stations, amateur radio (HAN) transmitter,
twoway radios, cellular phones and alarm systems of shops.
The interference (from radio wave sources) can cause the
power scooter to release its brakes, move by itself or move
in unintended directions. It can also permanently damage
the powered scooter’s control system. The intensity of the
EM energy can be measured in volts per meter (V/m). Each
powered scooter can resist EMI up to a certain intensity. This
Safety Instructions
