
LG-AlertTM Ver 1.06 Lateral Acceleration Indicator Owner’s Manual
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Stability Dynamics Ltd. 04/04/06 “U.S. Patent 6,130,608” Page 8
LIMITATIONS OF THE LG-AlertTM
This device is intended as an early alert system to assist drivers in recognizing when
they are approaching maneuvering limits that are potentially unstable. While this device
can provide invaluable information to the operator of the vehicle, it must be recognized
that the LG-AlertTM has limitations.
There is an associated warm-up time as with many electronic devices in which accuracy
and balance of the device may be in error. Extremes in surrounding temperature (<< 20
C >>) will have an adverse effect on the zero bias signal level during the warm up
period. If possible the device should be powered at all times to reduce warm-up time.
Typical quiescent current is approximately 200 mA, 12VDC supply at 25 Celsius. At
colder operating temperatures the device will require more power to maintain the
temperature of the sensitive internal accelerometer IC’s.
The device will not prevent the vehicle from overturning.
The device cannot work without a suitable, steady power source (there are no
batteries).
The device may not work properly if the power supply drops below 11 or rises above
18 VDC.
The device can’t operate properly if it is not installed properly. The base module
must be level when the vehicle is loaded and on level ground. Any error in the
device orientation will appear as an error on the display module.
The device will not work properly if the base module’s orientation is altered by impact
from people or equipment. Ensure that a routine is initiated that inspects functionality
of the device and orientation of the base module.
The audio alarm cannot alert the vehicle operator if it is disabled.
The device may function improperly if the cable between the base and display
modules is altered or lengthened. Consult manufacturer regarding cable length
limitations.
The device may malfunction if the cable between the base and display modules is
routed through an area of high electromagnetic interference (e.g., through engine
compartment). A specially shielded cable may be required if electromagnetic
interference disrupts signal reliability.
The device power supply must be between 11 and 18 VDC. Extraneous noise or
high voltages from the vehicle alternator circuit may cause internal damage to the
device. If this is a concern a power conditioning circuit should be installed between
the device and the vehicle battery circuit to filter out noise.
The LG-AlertTM is not a substitute for property, disability, life or any other insurance of
any kind. Appropriate insurance coverage is your responsibility. Consult your
insurance agent. The LG-AlertTM Lateral Acceleration Indicator is NOT to be relied on,
wholly, or in part, as a substitute for proper driver training, vehicle operation and
continued instruction respecting the safe operating parameters within which a vehicle
must be operated.