Mini-X Installation, Setup & User Manual GRT Avionics
Revision A9 81
Resetting the Totalizer After Adding Fuel
The totalizer can be updated on the EIS engine monitor or the EFIS display unit. If the EIS is mounted
in the instrument panel, it should be used. This allows both the EIS and EFIS to provide totalizer
data. Updates to totalizer data will be transmitted to, and displayed on, all display units which are
communicating on the inter-display unit link.
If the EIS with a display is mounted remotely (not reachable by the pilot) or a Remote EIS is used,
the fuel quantity can be set on any display unit, but only if the fuel quantity in the EIS has been
set to zero. (This is not necessary for the Remote EIS, which does not have a display). A non-zero
totalizer setting in the EIS will cause the EFIS to use the EIS totalizer data.
The Totalizer can be reset as follows:
1. From any engine page, press the knob to bring up the fuel totalizer
setting as shown at right.
2. The fuel quantities in the list refer to the total amount of fuel on board
and includes
ALL
tanks. The top number is the amount last entered,
so if you always top it off or fill it “to the tabs,” it is kept in memory
for convenience. The second number is the Fuel Flow MAX FUEL value
set on the Set Menu > Graphical Engine Display page.
3. To add a fuel quantity not listed, highlight “ADJ” and press the knob.
Turn it to enter the total fuel in the tanks and press the knob again
to enter the value.
4.
Fuel Added:
This optional input records the fuel added in the
automatic logbook feature.
NOTE:
The accuracy of the Fuel Total value depends on whether the
pilot remembers to reset it after refueling. We suggest adding “Reset
EFIS Fuel Qty” to your preflight or pre-taxi checklist.
Fuel Totalizer Errors
*CAUTION*:
Experience with a well calibrated fuel flow totalizer will show it to be very accurate;
unlike the fuel levels, it is not affected by the sloshing of fuel in the tanks that causes fuel level
readings to fluctuate. The totalizer also features a tenth-of-a-gallon resolution for more precise
accuracy. The pilot is cautioned
NOT TO RELY SOLELY on the Totalizer
, as it is subject to possible
sources of error.
Fuel level readings MUST BE USED by the pilot when managing fuel
. Only
when the totalizer and fuel levels agree should the pilot consider the totalizer’s estimate of fuel
remaining when managing their fuel.