G900X/G950 Installation and Maintenance Manual – Software, Configuration, and Calibration
Page 15-35
190-00719-00
Revision D
Empty Calibration:
1.
Verify that unusable fuel has been added to both tanks. Allow both fuel probes to stabilize for at
least 2 minutes.
2.
Select the LEFT tank on the PFD.
3.
Press the EMPTY softkey. The cursor will automatically activate and select the CALIBRATE?
option. The calibrated value setting will default to 00.00.
4.
Press the ENT key. A prompt appears requesting overwrite acknowledgement. Select YES and
press the ENT key. The G900X/G950 system will ‘zero’ the actual fuel quantity value to be
displayed.
5.
Select the RIGHT tank.
6.
Press the EMPTY softkey. The cursor will automatically activate and select the CALIBRATE?
option. The calibrated value setting will default to 00.00.
7.
Press the ENT key. A prompt appears requesting overwrite acknowledgement. Select YES and
press the ENT key. The G900X/G950 system will ‘zero’ the actual fuel quantity value to be
displayed.
8.
Observe the CALIBRATED TOTAL indication for the RIGHT tank. Verify that it remains at
0.00.
9.
Select the LEFT tank. Observe the CALIBRATED TOTAL indication for the LEFT tank.
Verify that it remains at 0.00.
10.
On the MFD, verify the fuel quantity indicators correctly point to ‘0’.
Calibration Procedure:
1.
Fill the fuel tank with a measurable amount of usable fuel (e.g. one gallon).
2.
Ensure that a reading is being received from the fuel probes in the CALIBRATION VALUE
field.
3.
Allow the fuel probe to stabilize at least 2 minutes before continuing.
4.
Enter the amount of fuel currently in the tank into the ACTUAL FUEL QUANTITY field and
press the ENT key. The cursor automatically selects the “CALIBRATE?” Option.
5.
Press the ENT key again to calibrate.
6.
Verify a corresponding point appears in the CALIBRATION TABLE.
7.
Verify that the CALIBRATED TOTAL value equals the amount of fuel put into the tank.
NOTE
Up to 40 separate entries can be used to generate the calibration table. The more
entries made the more accurate the calibration table will be. It is recommended that a
minimum of 10 equally spaced entries be made.
8.
Continue procedure until all required data points are entered. Points must be entered for empty
and full fuel quantities.
9.
Repeat procedure for other fuel tank.
10.
Record all calibration table values for future reference.
