J.P. Instruments Fuel Scan 450 Pilots Guide - Manual (Page 7)

For Your Safe Flight Page 5
Section 4 - Operation
Diagnostic Testing on Startup and During Flight
When your FS-450 is first turned on, all digits light up in each
display for a short time, permitting you to check for non-functional
segments. Then the FS-450 tests internal components, and integrity
of the system.
Start Up Fuel
After initial self-test, you will be asked to inform the FS-450 of
start up fuel. The FS-450 will display
(or
or ) for one second, and then flash until any
button is pressed.
During flight you may also inform the FS-450 of startup fuel using
the pilot program mode, beginning on page 8, if you forgot to do so
at start up.
Refer to the column in the chart below corresponding to your fuel
tank configuration. Tap the AUTO button to select one of the four
following fueling choices on the left column of the chart.
AUTO to
choose

Main tanks
only, no tabs
Main tanks
with tabs
Main & Auxiliary tanks
Did not add any fuel since last shutdown.
*
Topped the
main tanks. Filled only
to the tabs. Topped the main tanks. Input the
amount of fuel that is currently in the
auxiliary tanks when
is displayed
*
(not
applicable) Topped the
main tanks. Topped both the main and
auxiliary tanks.
Did not top, but added additional fuel to the aircraft, or
removed fuel from the aircraft.