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Service Manual
Third edition, June 1997
reference point. There is no need to enter a value here if
TX type is selected as 1 or 2.
• The Local Display Mode indicates which data the Local
Display should show.
- 0 switches the display off,
- 1 makes it show ullage continuously.
- 2 makes it toggle between ullage, average temperature
and inert gas pressure.
- 3 sets the display to show a value sent from the Work
Station. This feature is programmed prior to delivery of
the system. If no value has been defined, the feature is
not working.
- 4 sets the display to show ullage always in mm
- 5 sets the Local Display to show the tank address all
the time.
• FFT search. This indicates the method used to find the
echo when it has been lost. The FFT Search method is
set by the Saab service engineer when commissioning
the system. It should only be changed by a Saab service
engineer.