FAA Approved Installation Manual for the EDM-960 system
Report No 909
Primary Engine Data Management System
Page 20 of 45 Rev C
Date 12-12-12
WARNING
:
Never add or remove fuel from the aircraft when the
master switch is turned on.
Fuel quantity gauge performance is affected by many
factors, such as the integrity of the sensor performance, the
accuracy of the calibration data you collected and entered
and most importantly your validation that the EDM fuel
quantity gauge is accurate and repeatable after installation
and calibration. You should not use the fuel quantity gauge
system for any flight related operations until this validation
criteria has been met.
gauge selector switches and related annunciate lights must remain in the aircraft. The gauge could be mounted
behind the panel if desired.
24.3
Fuel Tank Calibration
Setting Fuel Calibration Points
The EDM interfaces to various fuel level sensor types to facilitate direct reading of the fuel level in the aircraft fuel tanks. The
EDM has a multi-point fuel calibration table that you must enter. This table contains calibration values (stored in non-volatile
memory) used to translate sensor readings into the displayed fuel quantity values. The calibration information is collected and
recorded on paper for later entry into the EDM. NOTE: Fuel quantity gauges will not be functional until the fuel calibration
information has been entered into the EDM. You will use the EDM instrument itself as the measuring device to collect
calibration data.
The following describes the basic procedures necessary for collection and entry of data into the fuel level calibration table.
Note: Any changes to fuel table data will be temporary until you execute the
’
SAVE
’
function (available after last cell of the
last tank table is entered).
Before beginning the fuel table entry/edit process, you must have properly installed and tested for correct functionality of the
fuel sensors.
