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J.P. Instruments EDM 700/800/711 Pilots Guide User Manual

Page 30

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Page 26

Engine Data Management

pre-ignition will destroy your engine in less than a minute unless you
take immediate corrective action.

Section 5 - Fuel Flow Option Operation

Fuel Flow Display Select Switch

The select switch is a three-position toggle switch mounted on your
instrument panel near the display of the EDM. It affects only the display
scan.

 In the EGT (Temperature) position only the installed

temperature (and battery voltage) parameters are displayed.

 In the ALL (All) position, the EDM both installed

temperature and fuel flow parameters are displayed.

 In the FF (Fuel Flow) position only fuel flow parameters are

displayed.

Any alarm warning will appear regardless of the select switch setting.
These parameters are displayed in the digital display in either the
Automatic or Manual modes or during the pilot programming procedure.
The select switch does not effect the analog display. EDM-711: the
toggle switch is disabled during Automatic scan mode.

Start Up Fuel

After initial self-test, you will be asked to inform the EDM of start up
fuel. The EDM will display

FUEL for one second, and then flash FILL?N

until any button is pressed. If your aircraft has tank fill tabs and no
auxiliary tanks, you can use the auxiliary tank feature to select either
filling to the tank tabs or topping the tank. See “Main Tank Capacity”
beginning on page 44 to program the EDM for this feature. The EDM
does not differentiate fuel flow between the main and auxiliary tanks; it
considers only total fuel in the aircraft. During flight you may also
inform the EDM of startup fuel using the pilot program mode
display if you forgot to do so at start up.

main tank

auxiliary tank

main tank with tab

tab

Auxiliary capacity

Main capacity