Pneumatic suspension system Part 2 4-level air ... - Volkspage

Level sensors, summary
The advantages of the angle sensor are the
proportional measurement process along
with their contact-free and therefore wearfree
operation.
The generation of ratios (proportional
measurement) means that the output signal
proportional to the angle is largely
independent of mechanical tolerances such
as distance changes, axle movement or
inclination errors. Magnetic interference is
also largely suppressed due to the generation
of ratios.
As no magnetic materials are required,
temperature and age cause only minimal
variances in the measured values. Such
variances are caused by a reduction in the
strength of the magnetic field of permanent
magnets over time or due to temperature
changes.
Warning lamp K134...
... illuminates for one second when
terminal 15 is ON (self-test).
Warning lamp K134
... is constantly illuminated in the
case of relevant system errors or
when the system is switched off.
... is constantly illuminated during
basic system setting and when
basic system setting has not been
performed successfully.
... flashes in the case of extremely
low or high levels.
... flashes during final control
diagnosis.
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