Teltonika FMB1YX User Manual page 26

Accessories
Description
Fuel Tank sensors
A fuel tank level
sensor exists in most
cars, which shows the
approximate fuel level
in the driver's
indicator panel. It is
possible to connect
FMB1YX Analog input
to it (if sensor returns
analogue signal
proportional to fuel
level). After the
connection to the tank
fuel level sensor,
calibration is needed.
Calibration is needed
because most fuel
tank sensors are not
linear. Calibration is
performed by
measuring voltage
dependence on
volume of fuel in tank.
Alarm buttons, door
sensors, etc.
Accessories connection schemes
I-Button DS1990A connection scheme
Fuel sensor scheme
Panic button connection
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