J.P. Instruments EDM 900 Pilots Guide User Manual
Page 42
Page 42
Engine Data Management
Adjusting the HP Value
You must set the nominal horsepower of your engine. This value
is used to calculate the percent horsepower display.
1. Enter the pilot program mode by simultaneously holding the
STEP
and
LF
buttons for five seconds.
2.
Tap
NEXT
repeatedly until you see Engine HP 200
.
Then hold
both the
NEXT
and Button 2 until you see ADJUST
momentarily.
3. Adjust the value
PLUS
or
MINUS
to equal your engines HP.
4. Hold both
NEXT
and Button 2 until you see SET.
Section 11 - Programming the Fuel Flow
Fuel Flow Parameters
Three additional parameters may be set by the pilot when the Fuel Flow
Option is installed:
K Factor—the fuel flow transducer calibration constant.
Accumulate—default is OFF: resets the fuel used to 0 every time you
inform the EDM that the aircraft was refueled. With accumulate ON,
fuel used will continue to accumulate for all subsequent flights.
GPS Communications fuel data format.
K Factor
The K factor is shown on the fuel flow transducer as a four-digit number,
which is the number of pulses generated per tenth gallon of fuel flow.
Before installing the transducer, write down the K factor here
_________. To enter the number into the EDM, place a decimal point two
places from the right of the number. For example if the K factor written on
the fuel flow transducer is ‘2912’ enter 29.12 in the EDM K factor
parameter field.
The K factor can be changed in the pilot programming procedure. When
the K factor is changed during a trip, calculations of fuel used, fuel
remaining and time to empty are not retroactively recalculated.